1. Required Software Jstl 1.1.1 Home http://jakarta.apache.org/taglibs/doc/standard-doc/intro.html download http://www.apache.org/dist/jakarta/taglibs/standard/binaries/jakarta-taglibs-standard-1.1.1.zip XML buddy Home http://xmlbuddy.com download this is an Eclipse plug-in that can help edit XML files (optional ). Install the plug-in. Refer to eclipse basics-install the Eclipse plug-in using links 2. Environment Configuration Create a lomboz J2EE project with the Project name: "jstl sample"; fill in web modules: "demoweb2"; add servers: "Tomcat 5.0.28 ", as my previous article introduces eclipse new project in more detail, here is a simple introduction. Directory structure F:/j2sdk JDK directory
D:/eclipse directory F:/Java/Jakarta-Tomcat 5.0.28 Directory D:/plug-in/lomboz.301 lomboz directory (I installed it in links mode here, D: /Java/jstl jakarta-taglibs-standard-1.1.1.zip extract Directory D:/Eclipse/workspace/jstl sample just created jstl sample project directory Make appropriate Configurations Based on the installed software. 3. Add the warehouse receiving File Find the jslt/lib directory and copy the jstl. jar, standard. JAR file to the lib directory (here "D:/Eclipse/workspace/jstl sample/demoweb2/WEB-INF/lib") in the just-created "jstl sample" project directory "). Find the jstl/TLD directory and copy the c. TLD file to the/demoweb2/WEB-INF directory in the jstl sample directory. Refresh the demoweb2 directory and expand it. The added three files are displayed: 4. ModifyProgram
Note: |
| Since lomboz only supports jstl1.1 and later versions, El is formally incorporated into the specification in JSP 2.0. Therefore, Web. xml should use a schema of 2.4 instead of a DTD of 2.3. |
Open the Web. xml file under the WEB-INF directory and modify it as follows:
| WEB-INF/web. XML |
xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi: schemalocation = "http://java.sun.com/xml/ns/j2ee web-app_2_4.xsd" Version = "2.4"> index. JSP 404 /error. JSP |
Note: |
| If you have installed the xmlbuddy plug-in and use it to open "Web. XML file, the following error may occur: "cannot find the declaration of the element 'web-app'", disable "Web. XML file, the error disappears. It does not affect the running of the program. |
Modify the index. jsp file
Demoweb2/index. jsp |
| <% @ Page contenttype = "text/html; charset = GBK" %> <% @ Taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "C" %> <HTML> <Head> <Title> count to 10 example (using jstl and scriptlet) </title> </Head> <Body> <% -- This is to use jstl to print 1 to 10 -- %> Use jstl to print 1 to 10 <p> <C: foreach Var = "I" begin = "1" End = "10" step = "1"> <C: Out value = "$ {I}"/> <Br/> </C: foreach> <% -- This is the use of JSP scriptlet to print 1 to 10 -- %> <P> use JSP scriptlet to print 1 to 10 <p> <% For (INT I = 1; I <= 10; I ++) {%> <% = I %> <br/> <% }%> </Body> </Html> |
| Note: |
| In lomboz, only jstl 1.1 is supported. Therefore, the URI of its core tag library is http://java.sun.com/jsp/jstl/coreby default. Jstl 1.1 supports both jstl 1.0 and 1.1. Therefore, if the URI of the core tag library is http://java.sun.com/jstl/core, the core tag library of jstl 1.0 will be used, and lomboz will have an error. |
Next article:
Use eclipse3 + lomboz3 + Tomcat to develop JSP -- 4. a servlet instance
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