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My first Struct experience

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My first Struct experience

标签（空格分隔）： struct

My first Struct experience
使用struct步骤
第一个struct程序

3种配置文件的优先级

使用struct步骤

1.引入struct架包

2.配置web.xml,设置struct过滤器

<filter>
<filter-name>Structs2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Structs2<filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

3.创建structs.xml 并引入dtd约束

解压struts2-core-2.3.1.jar，找到struts-2.3.dtd，打开

并复制代码

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">

粘贴到你的structs.xml文件中

第一个struct程序

struts.xml注册action

<?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>
<package name="loginDeal" namespace="/loginDeal" extends="struts-default">
<action name="login" class="com.tang.actions.loginAction">
<result name="success">/welcome.jsp</result>
<result  name="false">/error.jsp</result>
</action>
</package>
</struts>

web.xml配置structs2

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0">
<filter>
<filter-name>structs2</filter-name>
<filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>structs2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

loginAction.java

package com.tang.actions;

public class loginAction {
private String name=null;
private String password=null;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String execute(){
if("admin".equals(name)&&"admin".equals(password)){
return "success";
}else{
return "false";
}
}

}

login.jsp

<%@ 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>
&
b2e1
lt;head>
<base href="<%=basePath%>">
<title>My JSP 'loginTest.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">
</head>
<body>
<center>
<h1>登陆</h1><br>
<form action="loginDeal/login" method="POST">
name:<input type="text" name="name" /><br>
password:<input type="password" name="password"><br/>
<input type="submit" value="登陆" />
</form>
</center>
</body>
</html>

对于初学者经常犯的一些错误

*structs.xml文件放错地方，应该放在src目录下面

*form表单里面的input的name要与Actiond的属性名字要一致,不然接受不到表单数据

3种配置文件的优先级

web.xml>struts.properties>struts.xml

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标签： struct struts2 java

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