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Struts2入门案例,自动装配

2017-10-25 12:21 330 查看

入门案例：

HelloWorldAction

public class HelloWorldAction implements Action,ModelDriven<UserInfo> {
private UserInfo userInfo=new UserInfo();
public String execute() throws Exception {
if ("admin".equals(userInfo.getUsername())&&"admin".equals(userInfo.getPassword())){
return SUCCESS;
}else {
return INPUT;
}
}

public UserInfo getUserInfo() {
return userInfo;
}

public void setUserInfo(UserInfo userInfo) {
this.userInfo = userInfo;
}

public UserInfo getModel() {
return userInfo;
}
}

userinfo

public class UserInfo {
private String username;
private String password;

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;
}
}

web.xml

<!DOCTYPEweb-appPUBLIC"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN""http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>Archetype Created Web Application</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>
</web-app>

struts.xml

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

<!DOCTYPEstrutsPUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="default" namespace="/" extends="struts-default">
<action name="helloWorld" class="cn.happy.action.HelloWorldAction">
<result name="success">success.jsp</result>
<result name="input">1.jsp</result>
</action>
</package>
</struts>

1.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<s:form action="helloWorld" method="post">
请输入用户名：
<s:textfield name="username"></s:textfield>
<s:textfield name="password"></s:textfield>
<s:submit value="登录"></s:submit>
</s:form>
</body>
</html>

运行结果

成功：

失败：

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