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0 项目工程结构图
1 引入的类jar包，如下图：
2 web.xml 配置:
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE web-app PUBLIC '-//Sun Microsystems,Inc.//DTD Web Application 2.2//EN' 'http://java.sun.com/j2ee/dtds/web-app_2_2.dtd'><web-app> <display-name>Struts Demo</display-name> <!-- standard action servlet configuration --> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <load-on-startup>2</load-on-startup> </servlet> <!-- Standard Action Servlet Mapping --> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/userLogin.jsp</welcome-file> </welcome-file-list> <!-- Struts Tag Library Descripters --> <taglib> <taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri> <taglib-location>/WEB-INF/struts-bean.tld</taglib-location> </taglib> <taglib> <taglib-uri>/WEB-INF/struts-html.tld</taglib-uri> <taglib-location>/WEB-INF/struts-html.tld</taglib-location> </taglib> <taglib> <taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri> <taglib-location>/WEB-INF/struts-logic.tld</taglib-location> </taglib></web-app>
3 jsp
<%@ page language="java"%><%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%><%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
<html> <head> <title>JSP for userLoginForm form</title> </head> <body> <html:form action="/userLogin"> userName : <html:text property="userName"/><html:errors property="userName"/><br/> passWord : <html:password property="passWord"/><html:errors property="passWord"/><br/> <html:submit/><html:reset/> </html:form> </body></html>
4 Action
UserLoginAction:
package com.yang.struts.demo;
import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;
public class UserLoginAction extends Action { public ActionForward execute( ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { UserLoginForm userLoginForm = (UserLoginForm) form; // TODO Auto-generated method stub if(userLoginForm.getUserName().equals("EricHe") && userLoginForm.getPassWord().endsWith("123456")){ request.setAttribute("userName",userLoginForm.getUserName()); return mapping.findForward("success"); } return mapping.findForward("failure"); }
}
UserLoginForm.java
package com.yang.struts.demo;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionMapping;import org.apache.struts.action.ActionMessage;
public class UserLoginForm extends ActionForm { private String userName; private String passWord; public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPassWord() { return passWord; } public void setPassWord(String passWord) { this.passWord = passWord; } /** * 重置属性 */ public void reset(ActionMapping mapping, HttpServletRequest request) { this.userName = null; } /** * 验证属性非空,返回ActionErrors */ public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
ActionErrors errors = new ActionErrors();
if ((userName == null) || (userName.length() < 1)) errors .add("username", new ActionMessage( "username is null"));
return errors; } }
5 struts-config.xml
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd"><struts-config> <data-sources /> <form-beans > <form-bean name="userLoginForm" type="com.yang.struts.demo.UserLoginForm" /> </form-beans> <global-exceptions /> <global-forwards > </global-forwards> <action-mappings> <action attribute="userLoginForm" input="/userLogin.jsp" name="userLoginForm" path="/userLogin" scope="request" type="com.yang.struts.demo.UserLoginAction" validate="true"> <forward name="success" path="/userLoginSuccess.jsp" /> <forward name="failure" path="/tryAgin.jsp" /> </action> </action-mappings> <message-resources parameter="com.yang.struts.demo.ApplicationResources" /></struts-config>
6 运行
启动Tomcat，输入地址，运行。
