配置 Struts2 Hello World

http://javaweb.group.iteye.com/group/wiki/1505-struts2-under-helloworld---how-to-make-the-first-of-the-running-struts2

 

在刚刚下载的struts2-1-6目录下的lib中复制出如下六个文件
  commons-logging-1.0.4.jar
  freemarker-2.3.8.jar 
  ognl-2.6.11.jar 
  struts2-core-2.0.6.jar
  xwork-2.0.1.jar
以及(因为是struts2-1-6版本的。所以一下这个文件也必不可少)
commons-fileupload-1.2.1


然后粘贴到WebRoot/WEB-INF/lib即可;
第四步:
WebRoot目录下新建一个login.jsp
代码如下
login.jsp

    <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>  

    <%  

    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 'login.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>  

        <form action="login.action" method="post">  

            username: <input name="username" type="text"><br>  

            password: <input name="password" type="password"><br>  

              

            <input type="submit" value="submit">  

        </form>  

      </body>  

    </html>  

 第五步:
修改WEB-INF下的web.xml文件
代码如下
web.xml

    <?xml version="1.0" encoding="UTF-8"?>  

    <web-app 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">  

      

        <filter>  

            <filter-name>struts2</filter-name>  

            <!-- 控制器 -->  

            <filter-class>  

            org.apache.struts2.dispatcher.FilterDispatcher  

            </filter-class>  

        </filter>                                                                 

                   

                   

                 <filter-mapping>  

                    <filter-name>struts2</filter-name>  

                    <!-- 任何请求均有过滤器 -->  

                    <url-pattern>/*</url-pattern>  

                 </filter-mapping>  

    </web-app>  

 第六步:
新建action
在src目录下新建包com.test.action
在包中新建一个action代码如下
LoginAction.java

    package com.test.action;  

      

    public class LoginAction   

    {  

          

      

                            //getter和setter方法   就是根据这里的方法名来匹配客户端的信息  

        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;  

        }  

          

                   public String execute() throws Exception  

                   {  

                       return "success";  

                   }  

          

        //对应表单上的  

        private String username;  

        private String password;  

    }  

 第七步:
struts配置文件

在src目录下新建一个struts.xml代码如下:

    <?xml version="1.0" encoding="utf-8" ?>  

    <!DOCTYPE struts PUBLIC  

        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"   

        "http://struts.apache.org/dtds/struts-2.0.dtd">  

                  

    <struts>  

                         

                       <package name="struts2" extends="struts-default">  

                                <action name="login" class="com.test.action.LoginAction">  

                                            <!-- result没有名字是默认的success -->  

                                        <result name="success">/result.jsp</result>  

                                </action>  

                        </package>  

    </struts>  

 注意,struts.xml中有句话是
!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

红色这句可能会报错,解决的方法是 将“http://”字样去掉 其他我不知道还有什么方法,有高手知道请指点一二;

第八步;

新建result文件
在WebRoot目录下新建一个result.jsp文件 代码如下:

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>  

<%  

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 'result.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> helloworld username: ${requestScope.username }<br> password: ${requestScope.password } </body> </html>

 

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