Struts2實現簡單登陸功能
- /20170913_chr_loginchr/src/nuc/sw/action/LoginAction.java
package nuc.sw.action;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
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;
}
@Override
public String execute() throws Exception {
if(username.equals("程浩然")&&password.equals("123")) {
ActionContext.getContext().getSession().put("user",username);
return SUCCESS;
}
else {
ActionContext.getContext().getSession().put("error","用戶名或密碼錯誤");
return ERROR;
}
}
}
- /20170913_chr_loginchr/src/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="user" namespace="/" extends="struts-default">
<action name="LoginAction" class="nuc.sw.action.LoginAction">
<result name="success">
/welcome.jsp
</result>
<result name="error">
/login.jsp
</result>
</action>
</package>
</struts>
- /20170913_chr_loginchr/WebContent/login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登錄頁</title>
</head>
<body>
<font color="red">${requestScope.error}</font>
<font color="red"><s:fielderror></s:fielderror></font>
<form action="LoginAction" method="post">
用戶名：<input type="text" name="username"><br>
密 碼：<input type="text" name="password"><br>
<input type="submit" value="登陸">
</form>
</body>
</html>
- /20170913_chr_loginchr/WebContent/welcome.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>歡迎頁</title>
</head>
<body>
歡迎 ${session.user} 登陸！
</body>
</html>
