Download a file by j. Query. Ajax. 1. Framework agnostic: Servlet downloading file as attachment< !- - with JS - ->. Servlet? param. 1=value. JS - ->. < a href="download. Servlet? param. 1=value. Struts. 2 Framework: Action downloading file as attachment< !- - with JS - ->. Action. action? param.
JS - ->. < a href="download. Action. action? param. It would be better to use < s: a> tag pointing with OGNL to an URL created with < s: url> tag: < !- - without JS, with Struts tags: THE RIGHT WAY - ->. Action. action" var="url">. ![]() In the above cases, you need to write the Content- Disposition header to the response, specifying that the file needs to be downloaded (attachment) and not opened by the browser (inline). You need to specify the Content Type too, and you may want to add the file name and length (to help the browser drawing a realistic progressbar). For example, when downloading a ZIP: response. Content. Type("application/zip"). Header("Content- Disposition". Header("Content- Length", my. ![]() C/C++, Java, JSP, C#.NET, SQL, Pascal, Python, Assembly, Basic files Please use 'Find' command of your browser to search a file. *. Declare View Resolver: when view 'view_name' is called (from the Controller), the file '/jsp/view_name.jsp' will be used. File. length()); // or my. Byte[]. length.. With Struts. Action as a Servlet, an hack for direct streaming, for example), you don't need to directly write anything to the response; simply using the Stream result type and configuring it in struts. EXAMPLE< result name="success" type="stream">. Type"> application/zip< /param>. Disposition"> attachment; filename="${file. Name}"< /param>. Length"> ${file. Length}< /param>. Framework agnostic (/ Struts. Servlet(/Action) opening file inside the browser. If you want to open the file inside the browser, instead of downloading it, the Content- disposition must be set to inline, but the target can't be the current window location; you must target a new window created by javascript, an < iframe> in the page, or a new window created on- the- fly with the "discussed" target="_blank": < !- - From a parent page into an IFrame without javascript - ->. Servlet? param. 1=value. Frame. Name">. < !- - In a new window without javascript - ->. Servlet? param. 1=value. In a new window with javascript - ->. Servlet? param. 1=value. Configuring & Using Apache Tomcat 7 and Apache Tomcat 6. I strongly recommend that you use Tomcat inside Eclipse instead of trying. Tomcat. The time it takes to download the IDE and learn the bare bones basics of use. A quick summary is given below. Tomcat 7 with Eclipse. Tomcat 6 with Eclipse. Tomcat 7 with Eclipse (Details here)Recommended for Most Developers. Tomcat 6 with Eclipse (Details here)Old! Only if Servlet 2. Compatibility Needed. Manual Tomcat 6 Execution (Details here)Not recommended. Install Java. Make sure you have Java 7 or Java 6 installed. Unzip Tomcat. tomcat- 7. Download Eclipse 3. Juno). Install the Java EE version of Eclipse 3. Tell Eclipse about Tomcat. Start Eclipse and go to the Workbench. Click on Servers tab at bottom. R- click, New, Server, Apache. Tomcat v. 7. 0, navigate to Tomcat installation folder. C: \apache- tomcat- 7. OK. Test the server. Test Tomcat within Eclipse. Details here. Adjust Eclipse preferences. Point at your JDK: Window, Preferences, Java, Installed JREs, make sure a JDK (not JRE) is selected. If not. click Add and point at the install location of your JDK. Suppress unnecessary warnings about serialized classes. Window, Preferences, Java, Compiler, Errors/Warnings, change "Serializable class without .." to "Ignore". Many other personal preferences re font size, indentation style, etc. Install Java. Make sure you have Java installed. Unzip Tomcat. tomcat- 6. Download Eclipse. Install the Java EE version of Eclipse. Tell Eclipse about Tomcat. R- click, New, Server, Apache. Tomcat v. 6. 0, navigate to Tomcat installation folder. C: \apache- tomcat- 6. OK. Test the server. Test Tomcat within Eclipse. Details here. Adjust Eclipse preferences. Point at your JDK: Window, Preferences, Java, Installed JREs, make sure a JDK (not JRE) is selected. If not. click Add and point at the install location of your JDK. Suppress unnecessary warnings about serialized classes. Window, Preferences, Java, Compiler, Errors/Warnings, change "Serializable class without .." to "Ignore". Many other personal preferences re font size, indentation style, etc. Install Java. Make sure you have Java installed. Details here. Unzip Tomcat. C drive. Details here. Set JAVA_HOME. Set this. Java installation directory (e. C: \Program Files\Java\jdk. Use the Control Panel or see this. Details here. Set CLASSPATH. Set this. environment variable to include. C: \Servlets+JSP, and the servlet/JSP JAR files. Use the Control Panel or see this. Details here. Test the server. Make sure you can start/stop the server. Test some sample HTML files, JSP pages, and servlets. Details here. You can find details on customizing the Tomcat configuration. For information on commercial. Web hosting providers that support Tomcat, see the. JSP hosting page. Using Tomcat as a deployment server or integrating Tomcat as a. Apache server or a commercial Web. Although such integration is valuable for a deployment. Tomcat as a development. JSF 2, servlets/JSP, or. Java- based dynamic Web technologies. Regardless of what deployment. By far the best way to use Tomcat for development purposes is from inside. Eclipse or another IDE. For that, please see the Eclipse and Tomcat 7 integration tutorial. Eclipse and Tomcat 6 integration tutorial. For using Tomcat manually (not recommended), see the section below. The examples here assume you are using Windows, but they can be. Mac. OS, Linux, Solaris, and other versions of Unix. Except when I refer to specific Windows paths (e. C: \blah\blah). I use URL- style forward slashes for path separators (e. ROOT). Adapt as necessary. To report errors or omissions in this writeup or to inquire about customized. JSF 2, Ajax, j. Query, Android development, Java 7 or 8 programming, Hadoop, Spring, Hibernate. GWT, HTML5, RESTful Web Services and other Java- related technologies, please contact Marty Hall. If you find these free tutorials helpful, we would appreciate it if you would. Here are more details on using the preconfigured Tomcat 6 version. Please note that I strongly recommend that you use. Tomcat within Eclipse instead of executing. Tomcat by hand as described here. Whether you run Tomcat within Eclipse or do it manually. Tomcat configuration. Unzip Tomcat. Unzip tomcat- 6. C drive. This should result in C: \apache- tomcat- 6. This preconfigured version of Tomcat has the following settings already in place. For details on customizing this configuration, please see the detailed. The port is changed from 8. This. lets you enter URLs of the form http: //localhost/.. When you download Tomcat from the Apache site, the port is 8. Servlet reloading is enabled. This lets you. deploy a modified servlet . When you download Tomcat from the Apache site, servlet reloading is disabled. You might want it disabled. The invoker servlet is enabled. This lets you drop a servlet . Name/WEB- INF/classes/package. Name and. immediately run it with a URL of the form http: //localhost/app. Name/servlet/package. Name. Servlet. Name. That is, the invoker servlet saves you from editing web. When you download Tomcat from the Apache site, the invoker servlet is disabled. You DEFINITELY want the invoker servlet disabled on a server used for a deployed application, but. Tomcat monitors struts- config. Whenever either of these files changes, Tomcat automatically reloads the Web. This saves you from restarting the server when you change these files. If you do not use Struts or JSF, this change will not be beneficial to you. But it does not hurt either way. Directory listings are turned on. If you type a URL ending in / and there is no welcome file in that folder, Tomcat shows a directory listing. Directory listings were on by default in previous. Tomcat versions. They are not required but are convenient during development. Set JAVA_HOME. Set this environment variable to point. Java installation directory (e. C: \Program Files\Java\jdk. Use the Control Panel, see. Set CLASSPATH. Set this environment variable to include. C: \Servlets+JSP, and the servlet/JSP JAR files. For details, see. For a very quick test, open C: \Servlets+JSP, double click on. If you see something about Tomcat, the setup was successful. But be sure to do the more complete server tests.
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