Struts初体验之实施篇
浏览：36日期：2023-02-05
内容: 开发环境 window2000+jbuilder7+tomcat4.1.12 首先，从http://jakarta.apache.org下载jakarta-struts-1.0.2.zip，解开后有两个主要目录lib和webapps，在lib目录中是使用struts创建应用程序所必需的文件,在webapps目录下有几个后缀是war的文件，熟悉java web开发的人都比较清楚，将他们copy到tomcat/ webapps/目录下，然后再重新启动tomcat，tomcat会将这些web工程部署好的，其中Struts-documentation.war是文档，Struts-example.war是一个不错的例子，我主要就是参考这个例子来做的。然后在jbuilder安装目录/lib/下建立 struts目录，将上面的lib目录下的东西copy进去，然后启动jbuilder7,运行菜单tools->configure->libraries->new->name 输入struts,然后选择刚才copy过去的struts.jar文件,然后OK。 其次，新建立一个工程，引用struts，服务器选择tomcat4，然后建立一个Jsp1.jsp文件，然后把lib/目录下的所有.tld文件copy到你建立的工程目录下的/defaultroot/WEB-INF/目录下面，在/defaultroot/WEB-INF/建立action.xml,内容如下： struts-config.xml文件，如下： <?xml version='1.0' encoding='ISO-8859-1' ?> struts-config PUBLIC '//Apache Software Foundation//DTD Struts Configuration 1.0//EN' 'http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd'><form-beans> <form-bean name='logonForm'type='example.LogonForm'/> </form-beans> 然后建立logon.jsp，内容如下：<%@ page language='java' %><%@ taglib uri='/WEB-INF/struts-bean.tld' prefix='bean' %><%@ taglib uri='/WEB-INF/struts-html.tld' prefix='html' %><head></head><body bgcolor='white'><table border='0' width='100%'> <tr> <th align='right'> </th> <td align='left'> </td> </tr> <tr> <th align='right'> </th> <td align='left'> </td> </tr> <tr> <td align='right'> </td> <td align='left'> </td> </tr></table></body>然后建立一个class LogonForm.java，继承自ActionForm，打包在example内容如下package example;import org.apache.struts.action.ActionForm;import javax.servlet.http.HttpServletRequest;import org.apache.struts.action.ActionError;import org.apache.struts.action.ActionErrors;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionMapping;public class LogonForm extends ActionForm { private String password = null; private String username = null; public String getPassword() { return password; } public String getUsername() { return username; } public void setPassword(String password) { this.password = password; } public void setUsername(String username) { this.username = username; } public void reset(ActionMapping mapping, HttpServletRequest request) { this.password = null; this.username = null; } public ActionErrors validate(ActionMapping mapping,HttpServletRequest request) { ActionErrors errors = new ActionErrors(); if ((username == null) || (username.length() < 1)) errors.add('username', new ActionError('error.username.required')); if ((password == null) || (password.length() < 1)) errors.add('password', new ActionError('error.password.required')); return errors; }}然后建立一个class LogonAction.java，继承自Action，打包在example内容如下package example;import java.io.IOException;import java.util.Hashtable;import java.util.Locale;import javax.servlet.RequestDispatcher;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSession;import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.Action;import org.apache.struts.action.ActionError;import org.apache.struts.action.ActionErrors;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import org.apache.struts.action.ActionServlet;import org.apache.struts.util.MessageResources;public class LogonAction extends Action { public ActionForward perform(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException { Locale locale = getLocale(request); //MessageResources messages = getResources(); ActionErrors errors = new ActionErrors(); String username = ((LogonForm) form).getUsername(); String password = ((LogonForm) form).getPassword(); // Report any errors we have discovered back to the original form if (!errors.empty()) { saveErrors(request, errors); return (new ActionForward(mapping.getInput())); } // Save our logged-in user in the session HttpSession session = request.getSession(); session.setAttribute('user', 'ok'); if (servlet.getDebug()>= 1) servlet.log('LogonAction: User :' + '' logged on in session ' + session.getId()); // Remove the obsolete form bean if (mapping.getAttribute() != null) { if ('request'.equals(mapping.getScope())) request.removeAttribute(mapping.getAttribute()); else session.removeAttribute(mapping.getAttribute()); } // Forward control to the specified success URI return (mapping.findForward('success')); }}然后修改/defaultroot/WEB-INF/web.xml文件为<?xml version='1.0' encoding='UTF-8'?> web-app PUBLIC '//Sun Microsystems, Inc.//DTD Web Application 2.3//EN' 'http://java.sun.com/dtd/web-app_2_3.dtd'> action org.apache.struts.action.ActionServlet debug 2 config /WEB-INF/struts-config.xml application example.ApplicationResources detail 2 validate true 2 debugjsp org.apache.jasper.servlet.JspServlet jspCompilerPlugin com.borland.jbuilder.webserverglue.tomcat.jsp.JasperSunJavaCompiler 3 action *.do debugjsp *.jsp logon.jsp /WEB-INF/app.tld /WEB-INF/app.tld /WEB-INF/struts-bean.tld /WEB-INF/struts-bean.tld /WEB-INF/struts-html.tld /WEB-INF/struts-html.tld /WEB-INF/struts-logic.tld /WEB-INF/struts-logic.tld 最后还有一个重要的问题，就是一开始我们说过Struts-example.war，安装后把struts-exampleWEB-INFsrcorgapachestrutswebappApplicationResources.properties放到/defaultroot/WEB-INF/classes/example/目录下,然后就可以运行了,当你运行jbuilder后，在IE上键入http://localhost:8080/就会看到效果了，具体的解释请参见下一 解释篇刚开始研究struts，所以把自己的经过给大家分享,欢迎大家批评指正bill-转自:csdn Java, java, J2SE, j2se, J2EE, j2ee, J2ME, j2me, ejb, ejb3, JBOSS, jboss, spring, hibernate, jdo, struts, webwork, ajax, AJAX, mysql, MySQL, Oracle, Weblogic, Websphere, scjp, scjd 开发环?
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