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嗨我已經創建了一個使用Spring MVC的登錄應用程序，但它似乎無法正常工作。問題在於我在Authenticate類中用於從休眠狀態返回用戶名和密碼的邏輯。如果它沒有保留任何用戶名或密碼，並且它沒有正確驗證登錄並且登錄正在發生，即使對於錯誤的用戶名和密碼，我也會從authenticate類中獲取空列表。使用Spring MVC登錄應用程序無法正常工作
下面是我的控制器：
package com.lnt.controller;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import com.lnt.services.AuthenticateServices;
@Controller
@RequestMapping("/Login.spring")
public class LoginController {
//@Autowired
AuthenticateServices authenticateService = new AuthenticateServices();
@RequestMapping(method=RequestMethod.POST)
public ModelAndView processCredentials(HttpServletRequest req, HttpServletResponse res)
{
String userName =req.getParameter("userName") ;
String password = req.getParameter("password");
System.out.println("into login controller");
System.out.println(userName);
System.out.println(password);
String message = "Invalid credentials";
List<String> userdetails = new ArrayList<String>();
userdetails = authenticateService.verifyUserNameAndPassword(userName, password);
//System.out.println(userdetails.get(0)+ "index0");
if((userdetails)!=null)
{
message = "welcome" + userName ;
}
return new ModelAndView("results", "message", message) ;
}
這裏是我的JSP：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="Login.htm" method = "post">
<input type = "text" name = "userName" id = "userName">
<input type = "password" name = "password" id = "password">
<input type = "submit">
</form>
</body>
</html>
這裏是我的身份驗證服務類：
package com.lnt.services;
import java.util.List;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
//import org.apache.catalina.Session;
public class AuthenticateServices {
//private org.springframework.orm.hibernate3.HibernateTemplate HibernateTemplate ;
public AuthenticateServices() {
}
/*public AuthenticateServices(
org.springframework.orm.hibernate3.HibernateTemplate hibernateTemplate) {
super();
HibernateTemplate = hibernateTemplate;
}*/
public List<String> verifyUserNameAndPassword(String userName, String Password)
{
//Session session = new Configuration().configure().buildSessionFactory().openSession() ;
//ser = null ;
System.out.println("into checking the verifyingusername and status");
List<String> userobjs = null ;
//boolean userstatus = false;
try
{
Session session = null ;
session = new Configuration().configure().buildSessionFactory().openSession();
Transaction tx = null;
tx = session.beginTransaction();
//List<User> userobjs = HibernateTemplate.find("from user where. u.Username=? and u.password=?",userName,Password);
StringBuilder searchQuery = new StringBuilder();
searchQuery.append("Select loginid, password from login_info where loginid ='" + userName + "' and password = '" + Password + "'");
//System.out.println(userobjs + "userobjects");
tx.commit();
SQLQuery Sqlquery = session.createSQLQuery(searchQuery.toString());
userobjs = Sqlquery.list();
System.out.println("userlist" + userobjs);
System.out.println("query used" + Sqlquery);
session.close();
}
catch(Exception e)
{
System.out.println(e);
}
if (userobjs!=null)
{
return userobjs ;
}
else
{
return null;
}
}
}