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Struts2 入门 初步了解Struts2(1)

2016-09-03 17:59 477 查看
1.创建一个Dynamic Web Project  —— Structs2_100_Introduction
2.将struts2/struts-2.3.16.1/apps/struts2-blank/WEB-INF/web.xml 复制到 Structs2_100_Introduction/WebContent/WEB-INF 目录下
3.将struts2/struts-2.3.16.1/apps/struts2-blank/WEB-INF/lib 下的所有jar包复制到/Structs2_100_Introduction/WebContent/WEB-INF/lib 目录下
4.将struts2/struts-2.3.16.1/apps/struts2-blank/WEB-INF/src/java 下的structs.xml文件 复制到/Structs2_100_Introduction/src 目录下
5.  
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
<!--
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="true" />

<package name="default" namespace="/" extends="struts-default">

<default-action-ref name="index" />

<global-results>
<result name="error">/error.jsp</result>
</global-results>

<global-exception-mappings>
<exception-mapping exception="java.lang.Exception" result="error"/>
</global-exception-mappings>

<action name="index">
<result type="redirectAction">
<param name="actionName">HelloWorld</param>
<param name="namespace">/example</param>
</result>
</action>
</package>

<include file="example.xml"/>
-->
<!-- Add packages here -->
<!--设置为开发模式--><pre name="code" class="html"><span style="white-space:pre">	</span> <constant name="struts.enable.DynamicMethodInvocation" value="false" />
<span style="white-space:pre">	</span> <constant name="struts.devMode" value="true" />
<package name="default" namespace="/" extends="struts-default"> <!-- <default-action-ref name="index" / 删掉这部分--> <global-results> <result name="error">/error.jsp</result> </global-results> <global-exception-mappings> <exception-mapping exception="java.lang.Exception"
result="error"/> </global-exception-mappings> <!-- <action name="index"> 名字改成hello--> <action name="hello"> <!-- <result type="redirectAction"> 去掉result类型--> <result> <!-- <param name="actionName">HelloWorld</param> <param name="namespace">/example</param
去掉param --> /Hello.jsp <!-- 此处与WebConten下的文件名要一致--> </result> </action> </package>


6.在Structs2_100_Introduction/WebContent 下创建 Hello.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>HelloStruts2</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>
Hello Struts2 <br>
</body>
</html>
7. 运行Structs2_100_Introduction ，然后在地址栏的地址后加上hello ,与structs中的action对应

     加上hello后地址变为： http://localhost:8080/Structs2_101_Introduction/hello 
     运行后显示Hello Structs
                                            

                                        

                        
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