Struts2入門案例,自動裝配
阿新 • • 發佈：2018-11-27
入門案例：
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())){ returnSUCCESS; }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() { returnpassword; } public void setPassword(String password) { this.password = password; } }
web.xml
<!DOCTYPE web-app PUBLIC "-//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"?> <!DOCTYPE struts PUBLIC "-//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"> 請輸入使用者名稱： <s:textfield name="username"></s:textfield> <s:textfield name="password"></s:textfield> <s:submit value="登入"></s:submit> </s:form> </body> </html>
執行結果
成功：
失敗：