Struts1.2

一、配置web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>    <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>    <init-param>      <param-name>debug</param-name>      <param-value>3</param-value>    </init-param>    <init-param>      <param-name>detail</param-name>      <param-value>3</param-value>    </init-param>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>action</servlet-name>    <url-pattern>*.do</url-pattern>  </servlet-mapping>  </web-app>

二、配置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><form-beans><form-bean name="loginForm" type="com.struts.form.LoginForm"/></form-beans><global-forwards><forward name="error" path="/Error.jsp" /></global-forwards><action-mappings><action attribute="loginForm" path="/login"type="com.struts.action.LoginAction"name="loginForm"scope="request"validate="true"input="/index.jsp"><forward name="success" path="/LoginSuccess.jsp" /><forward name="failure" path="/LoginFailure.jsp" /></action></action-mappings><message-resources parameter="ApplicationResources" /><plug-in className="org.apache.struts.validator.ValidatorPlugIn"><set-property property="pathnames" value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml" /></plug-in></struts-config>

三、LoginAction.java

package com.struts.action;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;import com.struts.form.LoginForm;public class LoginAction extends Action{@Overridepublic ActionForward execute(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)throws Exception {//  继承父类（父类会将表单提交的值放在form中传递过来），调用LoginForm来存放表单传送过来的值（即将form强转为LoginFrom ）  LoginForm loginForm=(LoginForm)form;//  从LogginForm中将值取出来业务逻辑处理  String returnURLKeyWord="";  if(loginForm.getName().equals("dd")){   returnURLKeyWord="success";  }else{   returnURLKeyWord="failure";  }  System.out.println(returnURLKeyWord);//  通过使用struts-config.xml配置的父类（先带着跳转方式跳转到ActionServlet再由ActionServlet选择跳转页面 ）实现跳转  return mapping.findForward(returnURLKeyWord);}}

四、LoginForm.java

package com.struts.form;import org.apache.struts.action.ActionForm;public class LoginForm extends ActionForm{private String name;private String ps;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPs() {return ps;}public void setPs(String ps) {this.ps = ps;}/*@Overridepublic ActionErrors validate(ActionMapping mapping,HttpServletRequest request) {ActionErrors errors=new ActionErrors();        if(name==null||name.trim().length()<=0){               errors.add("name", new ActionMessage("errors.required","123"));        }        return errors;}*/}

五、validation.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE form-validation PUBLIC   "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN"  "http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd"><form-validation><global>     <validator name="equalsCheck"            classname="struts.EqualsChecks"               method="equalsChecks"         methodParams="java.lang.Object,                       org.apache.commons.validator.ValidatorAction,                       org.apache.commons.validator.Field,                       org.apache.struts.action.ActionMessages,                       org.apache.commons.validator.Validator,                       javax.servlet.http.HttpServletRequest"                  msg="errors.equalsCheck"/>      </global>    <formset>        <form name="loginForm"><field property="name" depends="required"><arg key="LoginForm.name"/></field><field property="ps" depends="required"><arg key="LoginForm.ps"/></field>        </form>    </formset></form-validation>

六、ApplicationResources.properties

errors.required={0}required. 

七、index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%><%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%><html>  <head>    <base href="<%=basePath%>">        <title>首页</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->  </head>    <body>   <!-- request.getContextPath():工程上下文，login.do中login是从struts-config.xml下action中的path中拷贝过来的 -->   <!-- form表单提交给login.do,进入前端控制器ActionServlet（web.xml:*.do）然后再转入后端控制器LoginAction(struts-config.xml:login) -->    <html:form action="/login">    <!-- 各表单控件的name属性必须和提交后的Form中的属性名一至，否则会出现空指针异常 -->    username:<html:text property="name"/><html:errors property="name"/><br>    password:<html:text property="ps"/><html:errors property="ps"/><br>    <html:submit/><html:cancel/>    </html:form>  </body></html>

• 因为是strut1.2版本，所以对应的DTD应该是1.0.2，在validation.xml和validation-rules.xml里面都是用的是1.1.3,所以使用这种方式的表单验证没效果。不知道怎么解决，换了1.0.2应该还要改文件中节点等信息吧....
• 因为我使用LoginForm继承的是ActionForm才这么写，如果使用的是DyanActionForm则不需要创建这个frombean文件，直接在struts-config.xml里面声明就可以。表单验证的话也只好是通过validation.xml文件方式来，自然是使用不了重写Validate()方法了...
• 而对于LoginAction继承的类（Action/DispatchAcion/LookUpDispatchAcion/MappingDispatchAction/ForwardAction/IncludeAcion）在struct-config.xml里面配置也有一些差异了，比如parameter="method" 或者是parameter="add"又或者parameter="/list.jsp"....