struts2全注解配置步骤

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第一步：

创建“struts2annotation”的web项目

第二步：

导入需要的jar包（我的环境tomcat7加jdk7）

第三步：

修改web.xml：

<?xml version="1.0" encoding="UTF-8"?><web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">    <display-name>Struts Blank</display-name>    <filter>        <filter-name>struts2</filter-name>        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>struts2</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <welcome-file-list>        <welcome-file>index.html</welcome-file>    </welcome-file-list></web-app>

第四步：
配置struts.xml：

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC      "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"      "http://struts.apache.org/dtds/struts-2.1.7.dtd">    <!-- <struts>      请求参数的编码方式      <constant name="struts.i18n.encoding" value="UTF-8"/>      指定被struts2处理的请求后缀类型。多个用逗号隔开      <constant name="struts.action.extension" value="action,do,go,qqi"/>      当struts.xml改动后，是否重新加载。默认值为false(生产环境下使用),开发阶段最好打开       <constant name="struts.configuration.xml.reload" value="true"/>      是否使用struts的开发模式。开发模式会有更多的调试信息。默认值为false(生产环境下使用),开发阶段最好打开       <constant name="struts.devMode" value="false"/>      设置浏览器是否缓存静态内容。默认值为true(生产环境下使用),开发阶段最好关闭       <constant name="struts.serve.static.browserCache" value="false" />      指定由spring负责action对象的创建       <constant name="struts.objectFactory" value="spring" />           是否开启动态方法调用      <constant name="struts.enable.DynamicMethodInvocation" value="false"/>  </struts>  --><struts><constant name="struts.i18n.encoding" value="UTF-8"/>  <constant name="struts.action.extension" value="action,do,go,qqi"/></struts>

第五步：创建action类：

package com.ninemax.action;import org.apache.struts2.convention.annotation.Action;import org.apache.struts2.convention.annotation.ExceptionMapping;import org.apache.struts2.convention.annotation.ExceptionMappings;import org.apache.struts2.convention.annotation.Namespace;import org.apache.struts2.convention.annotation.ParentPackage;import org.apache.struts2.convention.annotation.Result;import org.apache.struts2.convention.annotation.Results;import com.opensymphony.xwork2.ActionSupport;/** * 使用注解来配置Action * */@ParentPackage(value = "struts-default")@Namespace(value = "/user")@Results({@Result(name = "success", location="/msg.jsp"),@Result(name="error",location="/error.jsp")})@ExceptionMappings({@ExceptionMapping(exception="java.lange.RuntimeException",result="error")})public class LoginAction extends ActionSupport {private static final long serialVersionUID = -2315464632166461L;private String loginname;private String pwd;@Action(value = "login")public String login() throws Exception{if("qq".equals(loginname) && "123".equals(pwd)){return "success";} else {return "error";}}@Action(value="add",results={@Result(name = "success",location = "/index.jsp")})public String add()throws Exception{return "success";}public String getLoginname(){return loginname;}public void setLoginname(String loginname){this.loginname = loginname;}public String getPwd(){return pwd;}public void setPwd(String pwd){this.pwd = pwd;}}

第六步：
创建对应的jsp页面
1》、创建index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  <html>    <head>      <title>Struts2登录验证</title>      <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>    <h3>Struts2登录</h3><hr/>      <form action="${pageContext.request.contextPath}/user/login.action" method="post">          <table border="1" width="500px">              <tr>                  <td>用户名</td>                  <td><input type="text" name="loginname"/></td>              </tr>              <tr>                  <td>密码</td>                  <td><input type="password" name="pwd"/></td>              </tr>              <tr>                  <td colspan="2"><input type="submit" value="登录"/></td>              </tr>          </table>      </form>    </body>  </html>

2》、创建msg.jsp页面

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  <html>    <head>      <title>Struts2登录验证</title>      <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>    <h3>Struts2登录</h3><hr/>      登陆成功了~~  </body>  </html>

3》、创建error.jsp页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'error.jsp' starting page</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>    This is error JSP page. <br>  </body></html>

第七步：
把项目部到tomcat下启动，并且访问~！
访问的地址拼接为：http://localhost:8080/+项目名称+namespace+action名
例如我的为：http://localhost:8080/struts2annotation/user/add.action

注意在创建action类时所在的包路径名必须包含action，否则会报错。。。（其实也可以是其它几个关键字）