title
File Upload in Java Servlet

description
Uploading multiple files on the web server using java servlet. Apache commons fileupload library. Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1

detail
{'title': 'File Upload in Java Servlet', 'heatmap': [{'end': 453.009, 'start': 423.648, 'weight': 0.771}, {'end': 593.95, 'start': 543.726, 'weight': 0.731}, {'end': 632.064, 'start': 616.109, 'weight': 0.786}, {'end': 878.815, 'start': 856.02, 'weight': 0.701}, {'end': 973.568, 'start': 943.329, 'weight': 0.939}, {'end': 1016.273, 'start': 992.844, 'weight': 0.734}, {'end': 1088.585, 'start': 1065.248, 'weight': 0.756}, {'end': 1223.832, 'start': 1187.867, 'weight': 0.796}, {'end': 1265.307, 'start': 1244.093, 'weight': 0.789}, {'end': 1300.734, 'start': 1284.362, 'weight': 0.711}], 'summary': "Learn how to upload multiple files on a java website using maven project, setting up 'file upload demo' project with apache common file upload library, creating a file upload form in a servlet, and troubleshooting file upload errors.", 'chapters': [{'end': 129.449, 'segs': [{'end': 25.878, 'src': 'embed', 'start': 0.61, 'weight': 0, 'content': [{'end': 8.779, 'text': "Welcome back aliens, this is Nervin Reddy from Telisco Learnings and in this video we'll see how to upload files on the website.", 'start': 0.61, 'duration': 8.169}, {'end': 16.312, 'text': "So let's say, if you're making a website in Java, so you'll be using Savlet JSP for the server technologies, right?", 'start': 9.389, 'duration': 6.923}, {'end': 20.195, 'text': "So in this video we'll see how to upload multiple files on the server.", 'start': 16.753, 'duration': 3.442}, {'end': 25.878, 'text': 'Okay, so it will be useful for your website where you want to upload multiple files.', 'start': 20.855, 'duration': 5.023}], 'summary': 'Nervin reddy demonstrates uploading multiple files on a java website.', 'duration': 25.268, 'max_score': 0.61, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8610.jpg'}, {'end': 72.58, 'src': 'embed', 'start': 41.945, 'weight': 1, 'content': [{'end': 44.666, 'text': 'I mean we can make a simple web application.', 'start': 41.945, 'duration': 2.721}, {'end': 51.069, 'text': "or in this video I'll be using a Maven project again.", 'start': 44.666, 'duration': 6.403}, {'end': 52.37, 'text': 'you can go for simple application.', 'start': 51.069, 'duration': 1.301}, {'end': 53.35, 'text': 'you can go for.', 'start': 52.37, 'duration': 0.98}, {'end': 59.035, 'text': 'you know, you can simply search for dynamic web page or dynamic web project.', 'start': 53.35, 'duration': 5.685}, {'end': 60.255, 'text': 'so you can go with this.', 'start': 59.035, 'duration': 1.22}, {'end': 64.596, 'text': "and the thing is, in this project we'll be needing a jar file.", 'start': 60.255, 'duration': 4.341}, {'end': 68.118, 'text': 'so now why we need a jar file to upload a file on the server.', 'start': 64.596, 'duration': 3.522}, {'end': 72.58, 'text': 'so apache provides you a jar file, a library to do that.', 'start': 68.118, 'duration': 4.462}], 'summary': 'Creating a web application using maven project, requiring a jar file for file upload.', 'duration': 30.635, 'max_score': 41.945, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM841945.jpg'}, {'end': 118.864, 'src': 'embed', 'start': 89.057, 'weight': 2, 'content': [{'end': 90.097, 'text': "It's not that difficult.", 'start': 89.057, 'duration': 1.04}, {'end': 92.819, 'text': 'You can choose either dynamic project or Maven project.', 'start': 90.537, 'duration': 2.282}, {'end': 94.34, 'text': "So we'll select next.", 'start': 93.499, 'duration': 0.841}, {'end': 96.341, 'text': "And we'll say next.", 'start': 95.34, 'duration': 1.001}, {'end': 101.984, 'text': "Now here, whenever you work with Maven, you have to select the type of project you're working with, the archetype.", 'start': 96.541, 'duration': 5.443}, {'end': 105.205, 'text': 'I will select Maven archetype web app.', 'start': 102.784, 'duration': 2.421}, {'end': 107.006, 'text': "Okay, we'll say next.", 'start': 106.046, 'duration': 0.96}, {'end': 112.589, 'text': "Now if you don't know how to work with Maven, if you want to learn about this, again, on my channel, I have a Maven video.", 'start': 107.367, 'duration': 5.222}, {'end': 116.491, 'text': 'So you can just search for Maven tutorial on Telescope Learnings.', 'start': 113.07, 'duration': 3.421}, {'end': 117.232, 'text': 'You will get that.', 'start': 116.612, 'duration': 0.62}, {'end': 118.864, 'text': 'I will create.', 'start': 118.324, 'duration': 0.54}], 'summary': 'Select maven archetype web app for project type.', 'duration': 29.807, 'max_score': 89.057, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM889057.jpg'}], 'start': 0.61, 'title': 'Uploading files on website', 'summary': 'Covers the process of uploading multiple files on a java website using maven project, including the necessity of a jar file for file uploads and the selection of maven archetype web app for the project.', 'chapters': [{'end': 129.449, 'start': 0.61, 'title': 'Uploading files on website', 'summary': 'Covers the process of uploading multiple files on a java website using maven project, including the necessity of a jar file for file uploads and the selection of maven archetype web app for the project.', 'duration': 128.839, 'highlights': ['The process of uploading multiple files on a Java website using Maven project is explained. The chapter discusses how to upload multiple files on the server for a Java website, emphasizing the usage of Maven project for easier library maintenance.', 'The necessity of a jar file for uploading files on the server is highlighted. The chapter emphasizes the necessity of a jar file to upload files on the server and mentions that Apache provides a library for this purpose.', 'The selection of Maven archetype web app for the project is discussed. The chapter explains the process of selecting Maven archetype web app for the project and suggests referring to a Maven tutorial on Telescope Learnings for further understanding.']}], 'duration': 128.839, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8610.jpg', 'highlights': ['The process of uploading multiple files on a Java website using Maven project is explained.', 'The necessity of a jar file for uploading files on the server is highlighted.', 'The selection of Maven archetype web app for the project is discussed.']}, {'end': 352.763, 'segs': [{'end': 156.22, 'src': 'embed', 'start': 129.449, 'weight': 0, 'content': [{'end': 135.091, 'text': 'so my project name is file upload demo and will say finish now, once you click on finish,', 'start': 129.449, 'duration': 5.642}, {'end': 141.413, 'text': 'you will get a project on the left hand side you can see we got our project here, which is file upload demo.', 'start': 135.091, 'duration': 6.322}, {'end': 143.794, 'text': 'and in this thing the first thing we need is the library.', 'start': 141.413, 'duration': 2.381}, {'end': 149.939, 'text': 'right. of course, when you work with file upload, you need a library which is apache common file upload.', 'start': 143.794, 'duration': 6.145}, {'end': 151.479, 'text': 'so there are multiple ways you can do that.', 'start': 149.939, 'duration': 1.54}, {'end': 153.5, 'text': 'you can download the java file from google.', 'start': 151.479, 'duration': 2.021}, {'end': 156.22, 'text': "you can just go to google and search for, in fact, let's do that.", 'start': 153.5, 'duration': 2.72}], 'summary': "Creating a project named 'file upload demo' and using apache common file upload library for file upload.", 'duration': 26.771, 'max_score': 129.449, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8129449.jpg'}, {'end': 293.009, 'src': 'embed', 'start': 233.625, 'weight': 1, 'content': [{'end': 234.725, 'text': 'okay, this is not working here.', 'start': 233.625, 'duration': 1.1}, {'end': 240.168, 'text': 'so what we can do is we can go to pom.xml file and here we can add the dependency.', 'start': 234.725, 'duration': 5.443}, {'end': 242.269, 'text': 'now you can get this dependency from maven itself.', 'start': 240.168, 'duration': 2.101}, {'end': 246.251, 'text': 'so you can just go to maven website so you can see maven repository common file upload.', 'start': 242.269, 'duration': 3.982}, {'end': 251.079, 'text': 'so when you search for common file upload on google, it will give you maven option.', 'start': 247.318, 'duration': 3.761}, {'end': 253.46, 'text': 'also, you can download any version.', 'start': 251.079, 'duration': 2.381}, {'end': 257.821, 'text': 'i will prefer 1.3, which is the stable version, and you can just copy this file.', 'start': 253.46, 'duration': 4.361}, {'end': 260.022, 'text': 'in fact you can also download this file from maven.', 'start': 257.821, 'duration': 2.201}, {'end': 260.862, 'text': 'i prefer maven.', 'start': 260.022, 'duration': 0.84}, {'end': 265.102, 'text': "in fact lots of industry people they prefer maven project and let's paste it here.", 'start': 260.862, 'duration': 4.24}, {'end': 269.884, 'text': 'when you say save, you can see it is somewhere in the java resources.', 'start': 265.102, 'duration': 4.782}, {'end': 273.046, 'text': 'there should be libraries and there should be maven dependencies.', 'start': 269.884, 'duration': 3.162}, {'end': 274.086, 'text': 'and you got your file there.', 'start': 273.046, 'duration': 1.04}, {'end': 279.329, 'text': 'can you see that we got commons file upload and commons dot io or commons hyphen io.', 'start': 274.086, 'duration': 5.243}, {'end': 281.39, 'text': 'so we got these two libraries.', 'start': 279.329, 'duration': 2.061}, {'end': 283.091, 'text': 'now, once you got this, now what next?', 'start': 281.39, 'duration': 1.701}, {'end': 287.914, 'text': "now, once you got the r file, let's create a web page from where you can upload the files.", 'start': 283.091, 'duration': 4.823}, {'end': 293.009, 'text': 'okay, so let me just go to um, okay, let me get a web page.', 'start': 287.914, 'duration': 5.095}], 'summary': 'Add commons file upload dependency from maven for stable version 1.3.', 'duration': 59.384, 'max_score': 233.625, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8233625.jpg'}, {'end': 349.963, 'src': 'embed', 'start': 317.627, 'weight': 5, 'content': [{'end': 318.848, 'text': 'how to assign a tomcat server?', 'start': 317.627, 'duration': 1.221}, {'end': 322.011, 'text': 'right click on the project and say properties.', 'start': 318.848, 'duration': 3.163}, {'end': 324.794, 'text': 'there should be something called a servers here.', 'start': 322.011, 'duration': 2.783}, {'end': 325.975, 'text': 'you see that.', 'start': 324.794, 'duration': 1.181}, {'end': 327.457, 'text': 'uh, server or runtime.', 'start': 325.975, 'duration': 1.482}, {'end': 328.899, 'text': "there's the option target runtime.", 'start': 327.457, 'duration': 1.442}, {'end': 333.618, 'text': 'so you have to search for target runtime and select apache tomcat 8.0.', 'start': 328.899, 'duration': 4.719}, {'end': 335.979, 'text': "if you don't have that, then you have to download tomcat.", 'start': 333.618, 'duration': 2.361}, {'end': 342.401, 'text': 'you have to click on new and then you have to select the particular version you want to work with apache,', 'start': 335.979, 'duration': 6.422}, {'end': 344.461, 'text': 'then specify the version and click on download.', 'start': 342.401, 'duration': 2.06}, {'end': 349.963, 'text': 'it will download from the internet, but since i already have apache tomcat here, we can also use jboss.', 'start': 344.461, 'duration': 5.502}], 'summary': 'To assign a tomcat server, go to project properties, select target runtime, and choose apache tomcat 8.0. if not available, download and specify the version.', 'duration': 32.336, 'max_score': 317.627, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8317627.jpg'}], 'start': 129.449, 'title': "Setting up 'file upload demo' project", 'summary': "Covers the setup of a project named 'file upload demo', including adding apache common file upload library using maven, setting up commons file upload and commons-io libraries, creating a web page for file upload, and assigning a tomcat server for the project.", 'chapters': [{'end': 273.046, 'start': 129.449, 'title': 'File upload demo setup', 'summary': "Covers the setup of a project named 'file upload demo', outlining the process of adding the apache common file upload library using maven to the project.", 'duration': 143.597, 'highlights': ["The project 'File Upload Demo' requires the Apache Common File Upload library for file upload functionalities.", 'Users can download the Apache Common File Upload library from the Maven repository, with version 1.3 being the recommended stable version.', "The process involves adding the dependency in the project's pom.xml file, which is the Project Object Model file."]}, {'end': 352.763, 'start': 273.046, 'title': 'Setting up libraries and assigning a server', 'summary': 'Discusses setting up commons file upload and commons-io libraries, creating a web page for file upload, and assigning a tomcat server for the project.', 'duration': 79.717, 'highlights': ['The chapter emphasizes the setup of commons file upload and commons-io libraries for the project, providing a guide for the necessary steps.', 'It discusses the creation of a web page for file upload, showcasing the process and navigation within the project.', 'The chapter also explains the assignment of a Tomcat server for the project, including the steps to search for and select the target runtime, specifically Apache Tomcat 8.0.']}], 'duration': 223.314, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8129449.jpg', 'highlights': ["The project 'File Upload Demo' requires the Apache Common File Upload library for file upload functionalities.", 'Users can download the Apache Common File Upload library from the Maven repository, with version 1.3 being the recommended stable version.', "The process involves adding the dependency in the project's pom.xml file, which is the Project Object Model file.", 'The chapter emphasizes the setup of commons file upload and commons-io libraries for the project, providing a guide for the necessary steps.', 'It discusses the creation of a web page for file upload, showcasing the process and navigation within the project.', 'The chapter also explains the assignment of a Tomcat server for the project, including the steps to search for and select the target runtime, specifically Apache Tomcat 8.0.']}, {'end': 627.66, 'segs': [{'end': 402.78, 'src': 'embed', 'start': 377.359, 'weight': 3, 'content': [{'end': 383.263, 'text': 'so when you want to send something on the server, we need to create a form tag and in form will say action.', 'start': 377.359, 'duration': 5.904}, {'end': 387.306, 'text': 'this action will call something called as upload url.', 'start': 383.263, 'duration': 4.043}, {'end': 396.154, 'text': "let's upload, and the type of method we'll be using is post, because you want to send data to server and in this let's create input type.", 'start': 387.306, 'duration': 8.848}, {'end': 402.78, 'text': 'so normally, when you create input type, when you want to send text, we use input type text right.', 'start': 396.154, 'duration': 6.626}], 'summary': 'To send data to the server using a form with post method and upload url.', 'duration': 25.421, 'max_score': 377.359, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8377359.jpg'}, {'end': 453.009, 'src': 'heatmap', 'start': 423.648, 'weight': 0.771, 'content': [{'end': 425.429, 'text': 'and we also need to send data to server.', 'start': 423.648, 'duration': 1.781}, {'end': 427.069, 'text': "so we'll say submit button.", 'start': 425.429, 'duration': 1.64}, {'end': 429.45, 'text': "so that's submit.", 'start': 427.069, 'duration': 2.381}, {'end': 430.891, 'text': "i guess that's it.", 'start': 429.45, 'duration': 1.441}, {'end': 431.611, 'text': "uh, that's what.", 'start': 430.891, 'duration': 0.72}, {'end': 432.911, 'text': "that's what we need.", 'start': 431.611, 'duration': 1.3}, {'end': 435.132, 'text': "let's right click and let's see if we are getting this.", 'start': 432.911, 'duration': 2.221}, {'end': 436.413, 'text': 'we are getting something which we need.', 'start': 435.132, 'duration': 1.281}, {'end': 437.513, 'text': "we'll say run on server.", 'start': 436.413, 'duration': 1.1}, {'end': 440.154, 'text': 'i will select tomcat.', 'start': 437.513, 'duration': 2.641}, {'end': 442.221, 'text': 'next will click.', 'start': 440.154, 'duration': 2.067}, {'end': 443.947, 'text': 'let me remove the old project from here.', 'start': 442.221, 'duration': 1.726}, {'end': 451.009, 'text': 'let me just go with the new project and when i say finish, you can see it will run and it will run on the server, which is tomcat.', 'start': 443.947, 'duration': 7.062}, {'end': 453.009, 'text': 'and we got the output here.', 'start': 451.009, 'duration': 2}], 'summary': 'Sending data to server, running on tomcat, and getting the output.', 'duration': 29.361, 'max_score': 423.648, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8423648.jpg'}, {'end': 508.93, 'src': 'embed', 'start': 480.782, 'weight': 4, 'content': [{'end': 483.204, 'text': 'When I say choose file, I want choose files.', 'start': 480.782, 'duration': 2.422}, {'end': 485.305, 'text': 'It should select multiple files here.', 'start': 483.324, 'duration': 1.981}, {'end': 490.128, 'text': "And for that, what we'll do is we'll simply say multiple.", 'start': 486.226, 'duration': 3.902}, {'end': 493.251, 'text': 'So multiple is an attribute using which you can achieve multiple files.', 'start': 490.209, 'duration': 3.042}, {'end': 494.972, 'text': 'So you can see we are having choose file.', 'start': 493.271, 'duration': 1.701}, {'end': 497.914, 'text': "If I refresh this page, we've got option of choose files.", 'start': 495.012, 'duration': 2.902}, {'end': 501.056, 'text': 'And if I select this, I can actually select multiple files now.', 'start': 498.454, 'duration': 2.602}, {'end': 504.245, 'text': 'Can I do that? Let me select multiple files.', 'start': 502.322, 'duration': 1.923}, {'end': 508.93, 'text': 'Do I have multiple files here? So we got this one and this one.', 'start': 504.525, 'duration': 4.405}], 'summary': "The 'choose file' functionality allows selecting multiple files using the 'multiple' attribute.", 'duration': 28.148, 'max_score': 480.782, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8480782.jpg'}, {'end': 593.95, 'src': 'heatmap', 'start': 523.335, 'weight': 0, 'content': [{'end': 531.079, 'text': "okay, so when you send files, we have to mention the encoding type and inside encoding type you have to mention i'm sending a multi-part document,", 'start': 523.335, 'duration': 7.744}, {'end': 533.101, 'text': 'so it is multi-part.', 'start': 531.079, 'duration': 2.022}, {'end': 538.104, 'text': 'so if you say multi-part document and so multi-part and form data.', 'start': 533.101, 'duration': 5.003}, {'end': 540.565, 'text': 'so this is this type of data you want to pass.', 'start': 538.104, 'duration': 2.461}, {'end': 542.947, 'text': "it's multi-part form data.", 'start': 540.565, 'duration': 2.382}, {'end': 552.19, 'text': 'okay, so now, once you click on submit, it will call this url which is upload and on that upload servlet you will be sending all these files.', 'start': 543.726, 'duration': 8.464}, {'end': 554.391, 'text': 'so clients are done.', 'start': 552.19, 'duration': 2.201}, {'end': 558.393, 'text': "let's work on the server side now and on the server side we'll be creating a servlet.", 'start': 554.391, 'duration': 4.002}, {'end': 561.835, 'text': "so we'll right click, we'll send new.", 'start': 558.393, 'duration': 3.442}, {'end': 563.296, 'text': 'and do we have option of servlet here?', 'start': 561.835, 'duration': 1.461}, {'end': 572.861, 'text': 'yes, we have a servlet and let me mention a package name as com.talesco itself, and the class name, i will say, is file upload.', 'start': 563.296, 'duration': 9.565}, {'end': 577.296, 'text': 'ok, so we got file upload which extends HTTP servlet.', 'start': 573.735, 'duration': 3.561}, {'end': 579.277, 'text': 'anything else here, nothing.', 'start': 577.296, 'duration': 1.981}, {'end': 581.398, 'text': "so that's my URL mapping.", 'start': 579.277, 'duration': 2.121}, {'end': 583.718, 'text': 'next, do we need any method?', 'start': 581.398, 'duration': 2.32}, {'end': 585.819, 'text': 'here? will only need one method, which is do post.', 'start': 583.718, 'duration': 2.101}, {'end': 586.799, 'text': "I don't need to get.", 'start': 585.819, 'duration': 0.98}, {'end': 588.18, 'text': 'click on finish.', 'start': 586.799, 'duration': 1.381}, {'end': 592.41, 'text': 'Now you can see, once we say that we get all those extra files.', 'start': 589.349, 'duration': 3.061}, {'end': 593.95, 'text': "We don't need extra things here.", 'start': 592.45, 'duration': 1.5}], 'summary': 'Setting up file upload with multi-part form data and creating a servlet on the server side.', 'duration': 64.845, 'max_score': 523.335, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8523335.jpg'}], 'start': 352.763, 'title': 'Servlet file upload process', 'summary': 'Explains the process of creating a file upload form in a servlet, including creating the form, specifying the action method, and handling file uploads, and the need for specifying the encoding type of multi-part form data when sending files to the server.', 'chapters': [{'end': 627.66, 'start': 352.763, 'title': 'File upload process in servlet', 'summary': 'Explains the process of creating a file upload form in a servlet, including creating the form, specifying the action method, and handling file uploads, and the need for specifying the encoding type of multi-part form data when sending files to the server.', 'duration': 274.897, 'highlights': ['The chapter demonstrates creating a file upload form in a servlet, including specifying the action method, and handling file uploads, to achieve the functionality of uploading files to the server, which is essential for web applications. (Relevance: 5)', 'The need for specifying the encoding type of multi-part form data when sending files to the server is highlighted, emphasizing the importance of handling file uploads in web development. (Relevance: 4)', 'The process of creating a servlet for handling file uploads is explained, including extending HTTP servlet, defining the URL mapping, and implementing the do post method, providing a comprehensive overview of server-side handling of file uploads. (Relevance: 3)', 'The importance of creating a form tag with the action method and specifying the type of method, such as post for sending data to the server, is emphasized, outlining the essential steps for creating a file upload form in a servlet. (Relevance: 2)', "The chapter illustrates the use of input type file for enabling file selection and the mention of the 'multiple' attribute for selecting multiple files, demonstrating key aspects of implementing file upload functionality in web development. (Relevance: 1)"]}], 'duration': 274.897, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8352763.jpg', 'highlights': ['The chapter demonstrates creating a file upload form in a servlet, including specifying the action method, and handling file uploads, to achieve the functionality of uploading files to the server, which is essential for web applications. (Relevance: 5)', 'The need for specifying the encoding type of multi-part form data when sending files to the server is highlighted, emphasizing the importance of handling file uploads in web development. (Relevance: 4)', 'The process of creating a servlet for handling file uploads is explained, including extending HTTP servlet, defining the URL mapping, and implementing the do post method, providing a comprehensive overview of server-side handling of file uploads. (Relevance: 3)', 'The importance of creating a form tag with the action method and specifying the type of method, such as post for sending data to the server, is emphasized, outlining the essential steps for creating a file upload form in a servlet. (Relevance: 2)', "The chapter illustrates the use of input type file for enabling file selection and the mention of the 'multiple' attribute for selecting multiple files, demonstrating key aspects of implementing file upload functionality in web development. (Relevance: 1)"]}, {'end': 936.985, 'segs': [{'end': 727.158, 'src': 'embed', 'start': 689.983, 'weight': 2, 'content': [{'end': 691.604, 'text': 'I mean collection of files, right?', 'start': 689.983, 'duration': 1.621}, {'end': 695.007, 'text': "So when you say you're sending multiple files, we'll be saying list.", 'start': 692.205, 'duration': 2.802}, {'end': 699.851, 'text': "And the type of data you'll be getting is something called as file item.", 'start': 695.808, 'duration': 4.043}, {'end': 705.876, 'text': 'Now file item is an inbuilt class inside your common file.', 'start': 700.471, 'duration': 5.405}, {'end': 715.686, 'text': "folder Apache Commons, it's not working here Okay, we need to input that manually It should work.", 'start': 706.596, 'duration': 9.09}, {'end': 718.249, 'text': 'Let me expand the library which we have downloaded.', 'start': 716.247, 'duration': 2.002}, {'end': 727.158, 'text': "It is common file upload So it should be somewhere inside disk if I'm not wrong So if I expand this, oh it's not there here.", 'start': 718.389, 'duration': 8.769}], 'summary': 'Discussing file handling with apache commons library and encountering issues with file item class.', 'duration': 37.175, 'max_score': 689.983, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8689983.jpg'}, {'end': 774.583, 'src': 'embed', 'start': 740.492, 'weight': 0, 'content': [{'end': 741.753, 'text': 'So you have to do it manually.', 'start': 740.492, 'duration': 1.261}, {'end': 752.016, 'text': 'So you have to say, org.apache.commons.fileupload.', 'start': 741.773, 'duration': 10.243}, {'end': 757.858, 'text': 'And inside this file upload, we have this file, which is file item.', 'start': 752.416, 'duration': 5.442}, {'end': 763.296, 'text': 'And now you can see there is no error, it was not giving any error before.', 'start': 758.846, 'duration': 4.45}, {'end': 767.104, 'text': "And now we'll say our data will be coming in.", 'start': 764.038, 'duration': 3.066}, {'end': 772.101, 'text': 'we can use any, any names.', 'start': 767.104, 'duration': 4.997}, {'end': 773.322, 'text': 'i will say file.', 'start': 772.101, 'duration': 1.221}, {'end': 774.583, 'text': 'i mean list of file items.', 'start': 773.322, 'duration': 1.261}], 'summary': 'Manual process for org.apache.commons.fileupload, no errors previously, now receiving data.', 'duration': 34.091, 'max_score': 740.492, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8740492.jpg'}, {'end': 821.355, 'src': 'embed', 'start': 794.177, 'weight': 3, 'content': [{'end': 800.031, 'text': 'so the the way you can fetch it is with the help of object of request or sublet file upload.', 'start': 794.177, 'duration': 5.854}, {'end': 804.312, 'text': 'so before that we have to create object of servlet file upload.', 'start': 800.031, 'duration': 4.281}, {'end': 807.332, 'text': 'now the awesome thing is, servlet file upload also comes from apache.', 'start': 804.312, 'duration': 3.02}, {'end': 812.013, 'text': 'i mean this commons file of commons file upload library.', 'start': 807.332, 'duration': 4.681}, {'end': 813.914, 'text': 'so you can see the importance of this file.', 'start': 812.013, 'duration': 1.901}, {'end': 814.814, 'text': 'i mean this jar file.', 'start': 813.914, 'duration': 0.9}, {'end': 821.355, 'text': 'okay. so if you want to do this upload part, you need to use common file upload and we need to create object of this first.', 'start': 814.814, 'duration': 6.541}], 'summary': 'Use servlet file upload object to fetch data, from apache commons file upload library.', 'duration': 27.178, 'max_score': 794.177, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8794177.jpg'}, {'end': 878.815, 'src': 'heatmap', 'start': 856.02, 'weight': 0.701, 'content': [{'end': 863.424, 'text': "ok, so once we got the object of sublet file upload which is required to pass your request, so we'll say SF dot.", 'start': 856.02, 'duration': 7.404}, {'end': 866.445, 'text': 'so in this we already have a method called as pass request.', 'start': 863.424, 'duration': 3.021}, {'end': 868.987, 'text': 'can you see that we got pass request and request.', 'start': 866.445, 'duration': 2.542}, {'end': 872.189, 'text': 'So what this pass request will do is it will return you.', 'start': 869.807, 'duration': 2.382}, {'end': 878.815, 'text': 'so if you see the declaration of pass request which is inside Sublet File Upload, again, how to check the documentation?', 'start': 872.189, 'duration': 6.626}], 'summary': 'Sublet file upload object includes pass request method for returning data.', 'duration': 22.795, 'max_score': 856.02, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8856020.jpg'}, {'end': 913.219, 'src': 'embed', 'start': 886.662, 'weight': 5, 'content': [{'end': 890.266, 'text': 'it will give you documentation which accepts the request object.', 'start': 886.662, 'duration': 3.604}, {'end': 892.468, 'text': 'it will give you the list of file items.', 'start': 890.266, 'duration': 2.202}, {'end': 896.051, 'text': "And that's what we want, right? That's what we wanted and we got that.", 'start': 892.788, 'duration': 3.263}, {'end': 900.17, 'text': 'so we got list of file items.', 'start': 897.659, 'duration': 2.511}, {'end': 901.777, 'text': 'now, once you got that, what next?', 'start': 900.17, 'duration': 1.607}, {'end': 908.776, 'text': "now what we'll do is, once we got the list of items, we can run a for loop.", 'start': 905.714, 'duration': 3.062}, {'end': 911.798, 'text': 'right, we can run a for loop to fetch each item.', 'start': 908.776, 'duration': 3.022}, {'end': 913.219, 'text': "so we'll say file item.", 'start': 911.798, 'duration': 1.421}], 'summary': 'Documentation provides request object, list of file items, and supports iteration.', 'duration': 26.557, 'max_score': 886.662, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8886662.jpg'}], 'start': 627.66, 'title': 'File upload processes', 'summary': 'Discusses serverless file upload process and file upload process with servlet, covering verification, fetching multiple files, and use of servletfileupload class from apache commons fileupload library.', 'chapters': [{'end': 794.177, 'start': 627.66, 'title': 'Serverless file upload process', 'summary': 'Covers the process of serverless file upload, including the verification of actual files and fetching multiple files using apache commons fileupload, within the request object.', 'duration': 166.517, 'highlights': ['The process involves verifying the actual files by fetching the data and putting it in a list of file items, using the Apache Commons fileupload package.', 'The data for each file will be coming in as a list of file items, and the type of data received is known as file item.', 'The chapter emphasizes the need to manually import the org.apache.commons.fileupload package and utilize the file item class for handling file data within the request object.']}, {'end': 936.985, 'start': 794.177, 'title': 'File upload process with servlet', 'summary': 'Explains the process of uploading files using the servletfileupload class from the apache commons fileupload library, including creating the object, passing the request, and fetching the list of file items.', 'duration': 142.808, 'highlights': ['The chapter discusses the process of creating an object of ServletFileUpload, which is a crucial step for the file upload process.', 'It emphasizes the importance of the Commons FileUpload library for handling file uploads in a servlet environment.', "The chapter highlights the method 'parseRequest' within ServletFileUpload, which returns a list of file items, essential for processing uploaded files.", 'It explains the use of a for loop to iterate through the list of file items and fetch each item for further processing.']}], 'duration': 309.325, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8627660.jpg', 'highlights': ['The process involves verifying the actual files by fetching the data and putting it in a list of file items, using the Apache Commons fileupload package.', 'The chapter emphasizes the need to manually import the org.apache.commons.fileupload package and utilize the file item class for handling file data within the request object.', 'The data for each file will be coming in as a list of file items, and the type of data received is known as file item.', 'The chapter discusses the process of creating an object of ServletFileUpload, which is a crucial step for the file upload process.', 'It emphasizes the importance of the Commons FileUpload library for handling file uploads in a servlet environment.', "The chapter highlights the method 'parseRequest' within ServletFileUpload, which returns a list of file items, essential for processing uploaded files.", 'It explains the use of a for loop to iterate through the list of file items and fetch each item for further processing.']}, {'end': 1367.817, 'segs': [{'end': 973.568, 'src': 'heatmap', 'start': 943.329, 'weight': 0.939, 'content': [{'end': 946.11, 'text': "now which file I'm talking about?", 'start': 943.329, 'duration': 2.781}, {'end': 947.811, 'text': "I'm talking about the file.", 'start': 946.11, 'duration': 1.701}, {'end': 950.233, 'text': 'you have just mentioned the file object.', 'start': 947.811, 'duration': 2.422}, {'end': 956.396, 'text': "here we'll say file and inside this you have to specify the path where you want to store the data.", 'start': 950.233, 'duration': 6.163}, {'end': 957.517, 'text': 'ah, ok, good question.', 'start': 956.396, 'duration': 1.121}, {'end': 959.178, 'text': 'well, I, well, I want to store data.', 'start': 957.517, 'duration': 1.661}, {'end': 961.079, 'text': 'so I want to show the data inside my.', 'start': 959.178, 'duration': 1.901}, {'end': 963.845, 'text': "where's our project is my project.", 'start': 962.125, 'duration': 1.72}, {'end': 965.006, 'text': "that's my project area.", 'start': 963.845, 'duration': 1.161}, {'end': 970.287, 'text': 'this is, this is where I want to upload the file and how will I get to this path?', 'start': 965.006, 'duration': 5.281}, {'end': 972.627, 'text': "so we'll go to CMD.", 'start': 970.287, 'duration': 2.34}, {'end': 973.568, 'text': "that's the best way.", 'start': 972.627, 'duration': 0.941}], 'summary': 'Storing data in specified path for upload using cmd.', 'duration': 30.239, 'max_score': 943.329, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8943329.jpg'}, {'end': 1016.273, 'src': 'heatmap', 'start': 977.708, 'weight': 0, 'content': [{'end': 984.13, 'text': "since I'm working with, let me just say clear, okay.", 'start': 977.708, 'duration': 6.422}, {'end': 985.57, 'text': "so now I'm here.", 'start': 984.13, 'duration': 1.44}, {'end': 992.844, 'text': "in this command prompt I will say command documents and I'm inside my project, which is file or not.", 'start': 985.57, 'duration': 7.274}, {'end': 1000.167, 'text': 'I have to get into my workspace, which is telescope, and inside that I have to search for a project which is file upload.', 'start': 992.844, 'duration': 7.323}, {'end': 1002.708, 'text': 'and if I say ls now, you can see, we got these three files.', 'start': 1000.167, 'duration': 2.541}, {'end': 1004.769, 'text': 'so this is, this is the place where I want to upload the file.', 'start': 1002.708, 'duration': 2.061}, {'end': 1007.37, 'text': 'so I will get the working directory.', 'start': 1004.769, 'duration': 2.601}, {'end': 1008.85, 'text': 'this is the path I want to upload.', 'start': 1007.37, 'duration': 1.48}, {'end': 1010.351, 'text': 'so copy.', 'start': 1008.85, 'duration': 1.501}, {'end': 1016.273, 'text': 'go back to the project and simply say this is the path I want to upload my file.', 'start': 1010.351, 'duration': 5.922}], 'summary': 'Navigating to project directory and uploading file.', 'duration': 25, 'max_score': 977.708, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8977708.jpg'}, {'end': 1094.15, 'src': 'heatmap', 'start': 1065.248, 'weight': 0.756, 'content': [{'end': 1067.991, 'text': "We'll say file uploaded.", 'start': 1065.248, 'duration': 2.743}, {'end': 1071.836, 'text': "Again, we'll do that, how to upload that, how to print that data on the client side.", 'start': 1068.191, 'duration': 3.645}, {'end': 1078.663, 'text': 'And I guess everything should work now if I run this code on the Tomcat server.', 'start': 1072.957, 'duration': 5.706}, {'end': 1081.019, 'text': "In fact, we don't need to run this.", 'start': 1079.838, 'duration': 1.181}, {'end': 1088.585, 'text': "It's already in running state, right? Anyway, so I'm running this part and now it is asking for the files.", 'start': 1081.059, 'duration': 7.526}, {'end': 1090.227, 'text': 'Hope so it will work.', 'start': 1089.266, 'duration': 0.961}, {'end': 1091.628, 'text': 'Let me select multiple files here.', 'start': 1090.287, 'duration': 1.341}, {'end': 1094.15, 'text': 'Let me just upload first file here, which is demo.java.', 'start': 1091.808, 'duration': 2.342}], 'summary': 'Demonstrating file upload and printing data on the client side using tomcat server.', 'duration': 28.902, 'max_score': 1065.248, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM81065248.jpg'}, {'end': 1118.448, 'src': 'embed', 'start': 1089.266, 'weight': 2, 'content': [{'end': 1090.227, 'text': 'Hope so it will work.', 'start': 1089.266, 'duration': 0.961}, {'end': 1091.628, 'text': 'Let me select multiple files here.', 'start': 1090.287, 'duration': 1.341}, {'end': 1094.15, 'text': 'Let me just upload first file here, which is demo.java.', 'start': 1091.808, 'duration': 2.342}, {'end': 1096.332, 'text': 'Upload, submit.', 'start': 1094.871, 'duration': 1.461}, {'end': 1099.174, 'text': 'Oh, it is giving you an error.', 'start': 1096.912, 'duration': 2.262}, {'end': 1102.197, 'text': 'It is not able to find the upload part.', 'start': 1099.214, 'duration': 2.983}, {'end': 1103.157, 'text': "That's weird.", 'start': 1102.517, 'duration': 0.64}, {'end': 1105.68, 'text': 'We are saying upload.', 'start': 1104.799, 'duration': 0.881}, {'end': 1106.66, 'text': 'Oh, we should be saying..', 'start': 1105.8, 'duration': 0.86}, {'end': 1115.607, 'text': "we need to change that in the XML file right, because I'm saying upload and in XML the mapping is done with something else.", 'start': 1107.503, 'duration': 8.104}, {'end': 1117.188, 'text': "let me check what's the mapping here.", 'start': 1115.607, 'duration': 1.581}, {'end': 1118.448, 'text': 'oh, mapping is done with file upload.', 'start': 1117.188, 'duration': 1.26}], 'summary': 'Difficulty in uploading files due to incorrect xml mapping, causing an error.', 'duration': 29.182, 'max_score': 1089.266, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM81089266.jpg'}, {'end': 1241.609, 'src': 'heatmap', 'start': 1187.867, 'weight': 3, 'content': [{'end': 1191.269, 'text': 'okay, so the problem is we are putting that into a resource folder.', 'start': 1187.867, 'duration': 3.402}, {'end': 1193.991, 'text': 'right, it should not be inside resource folder, it should be in java folder.', 'start': 1191.269, 'duration': 2.722}, {'end': 1196.933, 'text': 'let me create one more folder here.', 'start': 1193.991, 'duration': 2.942}, {'end': 1200.916, 'text': 'this sometimes this is what happens when you work with maven sometime.', 'start': 1196.933, 'duration': 3.983}, {'end': 1208.24, 'text': 'so we need to move this into java.', 'start': 1200.916, 'duration': 7.324}, {'end': 1211.623, 'text': 'so it should be inside java and you can see it is giving me some errors.', 'start': 1208.24, 'duration': 3.383}, {'end': 1215.105, 'text': 'now let me input the package for list.', 'start': 1211.623, 'duration': 3.482}, {'end': 1218.146, 'text': 'okay, because we need to also input the PackageForList right?', 'start': 1215.105, 'duration': 3.041}, {'end': 1223.832, 'text': 'And it is giving me an error because it may throw an exception.', 'start': 1219.728, 'duration': 4.104}, {'end': 1227.695, 'text': 'Is that the issue? Yes, it is trying to throw an exception.', 'start': 1224.752, 'duration': 2.943}, {'end': 1229.998, 'text': "Let's write everything inside our try catch.", 'start': 1227.715, 'duration': 2.283}, {'end': 1233.581, 'text': "So we'll say try and catch.", 'start': 1230.018, 'duration': 3.563}, {'end': 1241.609, 'text': "We'll say exception e, and let me just print the exception here.", 'start': 1236.544, 'duration': 5.065}], 'summary': 'Moving file from resource folder to java folder, handling exceptions', 'duration': 53.742, 'max_score': 1187.867, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM81187867.jpg'}, {'end': 1269.61, 'src': 'heatmap', 'start': 1244.093, 'weight': 0.789, 'content': [{'end': 1250.697, 'text': 'okay, now let me just format this thing just to make it look better, and formatting is done.', 'start': 1244.093, 'duration': 6.604}, {'end': 1252.218, 'text': 'I think everything is done.', 'start': 1250.697, 'duration': 1.521}, {'end': 1258.122, 'text': "now let's refresh, choose Java file.", 'start': 1252.218, 'duration': 5.904}, {'end': 1262.745, 'text': "it's here and say submit, and we got one more error.", 'start': 1258.122, 'duration': 4.623}, {'end': 1265.307, 'text': 'we are always getting some sort of errors.', 'start': 1262.745, 'duration': 2.562}, {'end': 1265.847, 'text': 'let me just.', 'start': 1265.307, 'duration': 0.54}, {'end': 1269.61, 'text': 'I think we have to restart the server.', 'start': 1265.847, 'duration': 3.763}], 'summary': 'Encountered an error while submitting java file, considering server restart.', 'duration': 25.517, 'max_score': 1244.093, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM81244093.jpg'}, {'end': 1312.421, 'src': 'heatmap', 'start': 1284.362, 'weight': 0.711, 'content': [{'end': 1288.688, 'text': 'Where is the file now?', 'start': 1284.362, 'duration': 4.326}, {'end': 1293.87, 'text': 'demo.java. submit, and you can see we have done that.', 'start': 1289.807, 'duration': 4.063}, {'end': 1297.572, 'text': "there is no errors now because, anyway, we are not getting any text, because we're not printing and stuff.", 'start': 1293.87, 'duration': 3.702}, {'end': 1299.213, 'text': 'let me just go to the console.', 'start': 1297.572, 'duration': 1.641}, {'end': 1300.153, 'text': 'it says file uploaded.', 'start': 1299.213, 'duration': 0.94}, {'end': 1300.734, 'text': "let's verify.", 'start': 1300.153, 'duration': 0.581}, {'end': 1301.874, 'text': 'let me just go to my project.', 'start': 1300.734, 'duration': 1.14}, {'end': 1304.616, 'text': 'you can see we got demo.java.', 'start': 1301.874, 'duration': 2.742}, {'end': 1307.958, 'text': 'so we are able to upload a demo.java file.', 'start': 1304.616, 'duration': 3.342}, {'end': 1308.779, 'text': 'uh, let me just upload.', 'start': 1307.958, 'duration': 0.821}, {'end': 1312.421, 'text': 'let me just run this once again by uploading more files and let me remove this demo.java.', 'start': 1308.779, 'duration': 3.642}], 'summary': 'Successfully uploaded demo.java file, no errors encountered.', 'duration': 28.059, 'max_score': 1284.362, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM81284362.jpg'}, {'end': 1330.292, 'src': 'embed', 'start': 1301.874, 'weight': 1, 'content': [{'end': 1304.616, 'text': 'you can see we got demo.java.', 'start': 1301.874, 'duration': 2.742}, {'end': 1307.958, 'text': 'so we are able to upload a demo.java file.', 'start': 1304.616, 'duration': 3.342}, {'end': 1308.779, 'text': 'uh, let me just upload.', 'start': 1307.958, 'duration': 0.821}, {'end': 1312.421, 'text': 'let me just run this once again by uploading more files and let me remove this demo.java.', 'start': 1308.779, 'duration': 3.642}, {'end': 1314.622, 'text': 'for now, i want to upload more files.', 'start': 1312.421, 'duration': 2.201}, {'end': 1316.624, 'text': 'now, delete.', 'start': 1314.622, 'duration': 2.002}, {'end': 1318.165, 'text': 'let me choose more files.', 'start': 1316.624, 'duration': 1.541}, {'end': 1323.388, 'text': "um, we'll choose this one aws.pdf, we'll choose code.jsp.", 'start': 1318.165, 'duration': 5.223}, {'end': 1329.112, 'text': "we'll choose demo.java, demo.jsp and displaycontact.zip.", 'start': 1323.388, 'duration': 5.724}, {'end': 1330.292, 'text': 'we are putting file files.', 'start': 1329.112, 'duration': 1.18}], 'summary': 'Demonstrating file upload and deletion with multiple file types.', 'duration': 28.418, 'max_score': 1301.874, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM81301874.jpg'}], 'start': 936.985, 'title': 'Uploading files and troubleshooting', 'summary': 'Covers uploading files on the server side, navigating to the project directory via command prompt, troubleshooting file upload errors including mapping and class not found exceptions, and handling exceptions while successfully uploading multiple files.', 'chapters': [{'end': 1025.569, 'start': 936.985, 'title': 'Uploading a file on the server side', 'summary': 'Covers how to specify the file path for uploading data on the server side, including navigating to the project directory via command prompt and fetching the name of the uploaded file.', 'duration': 88.584, 'highlights': ['Specify the file path for uploading data on the server side. Explains how to mention the file name and specify the path for storing data.', 'Navigating to the project directory via command prompt. Provides steps to navigate to the project directory using the command prompt or terminal.', 'Fetching the name of the uploaded file. Describes how to retrieve the name of the file uploaded by the user.']}, {'end': 1181.228, 'start': 1025.569, 'title': 'Troubleshooting file upload error', 'summary': 'Details the troubleshooting process of uploading a file to the server, encountering errors related to mapping and class not found exceptions, while attempting to resolve them by checking xml configuration and server restart.', 'duration': 155.659, 'highlights': ['Encountering class not found exception while trying to upload file demo.java, indicating an issue with file upload mapping.', "Identifying the need to change the XML file mapping from 'upload' to 'file upload' to resolve the upload issue.", 'Restarting the Tomcat server to address potential errors and refresh the file upload process.', 'Noting the debugging process required to resolve any issues encountered during the file upload to the server.']}, {'end': 1367.817, 'start': 1181.228, 'title': 'Troubleshooting maven and file upload', 'summary': 'Highlights the troubleshooting process of moving a package to the correct folder, handling exceptions, formatting code, and successfully uploading multiple files, demonstrating the simplicity of file uploads on the server side.', 'duration': 186.589, 'highlights': ['The file upload process is demonstrated by uploading multiple files, including aws.pdf, code.jsp, demo.java, demo.jsp, and displaycontact.zip.', 'The troubleshooting process includes moving a package to the correct folder, handling exceptions by using try and catch blocks, and formatting the code to eliminate errors.', 'The simplicity of file uploads on the server side is highlighted, with the option for further validation and evaluation.', 'The chapter concludes with a call for feedback and queries from subscribers, showing engagement with the audience.']}], 'duration': 430.832, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/4yb16lTxbM8/pics/4yb16lTxbM8936985.jpg', 'highlights': ['Navigating to the project directory via command prompt. Provides steps to navigate to the project directory using the command prompt or terminal.', 'The file upload process is demonstrated by uploading multiple files, including aws.pdf, code.jsp, demo.java, demo.jsp, and displaycontact.zip.', 'Encountering class not found exception while trying to upload file demo.java, indicating an issue with file upload mapping.', 'The troubleshooting process includes moving a package to the correct folder, handling exceptions by using try and catch blocks, and formatting the code to eliminate errors.']}], 'highlights': ['The process of uploading multiple files on a Java website using Maven project is explained.', 'The necessity of a jar file for uploading files on the server is highlighted.', 'The selection of Maven archetype web app for the project is discussed.', "The project 'File Upload Demo' requires the Apache Common File Upload library for file upload functionalities.", 'Users can download the Apache Common File Upload library from the Maven repository, with version 1.3 being the recommended stable version.', "The process involves adding the dependency in the project's pom.xml file, which is the Project Object Model file.", 'The chapter emphasizes the setup of commons file upload and commons-io libraries for the project, providing a guide for the necessary steps.', 'It discusses the creation of a web page for file upload, showcasing the process and navigation within the project.', 'The chapter also explains the assignment of a Tomcat server for the project, including the steps to search for and select the target runtime, specifically Apache Tomcat 8.0.', 'The chapter demonstrates creating a file upload form in a servlet, including specifying the action method, and handling file uploads, to achieve the functionality of uploading files to the server, which is essential for web applications. (Relevance: 5)', 'The need for specifying the encoding type of multi-part form data when sending files to the server is highlighted, emphasizing the importance of handling file uploads in web development. (Relevance: 4)', 'The process of creating a servlet for handling file uploads is explained, including extending HTTP servlet, defining the URL mapping, and implementing the do post method, providing a comprehensive overview of server-side handling of file uploads. (Relevance: 3)', 'The importance of creating a form tag with the action method and specifying the type of method, such as post for sending data to the server, is emphasized, outlining the essential steps for creating a file upload form in a servlet. (Relevance: 2)', "The chapter illustrates the use of input type file for enabling file selection and the mention of the 'multiple' attribute for selecting multiple files, demonstrating key aspects of implementing file upload functionality in web development. (Relevance: 1)", 'The process involves verifying the actual files by fetching the data and putting it in a list of file items, using the Apache Commons fileupload package.', 'The chapter emphasizes the need to manually import the org.apache.commons.fileupload package and utilize the file item class for handling file data within the request object.', 'The data for each file will be coming in as a list of file items, and the type of data received is known as file item.', 'The chapter discusses the process of creating an object of ServletFileUpload, which is a crucial step for the file upload process.', 'It emphasizes the importance of the Commons FileUpload library for handling file uploads in a servlet environment.', "The chapter highlights the method 'parseRequest' within ServletFileUpload, which returns a list of file items, essential for processing uploaded files.", 'It explains the use of a for loop to iterate through the list of file items and fetch each item for further processing.', 'Navigating to the project directory via command prompt. Provides steps to navigate to the project directory using the command prompt or terminal.', 'The file upload process is demonstrated by uploading multiple files, including aws.pdf, code.jsp, demo.java, demo.jsp, and displaycontact.zip.', 'Encountering class not found exception while trying to upload file demo.java, indicating an issue with file upload mapping.', 'The troubleshooting process includes moving a package to the correct folder, handling exceptions by using try and catch blocks, and formatting the code to eliminate errors.']}