为什么我无法使用Spring MVC和Hibernate在JSP页面中显示数据库值

Question

Any one can help me...?? 任何人都可以帮助我... ?? Actually I am unable to display my database values in the jsp page...! 实际上，我无法在jsp页面中显示我的数据库值...！ Here I am sharing all my code...!! 在这里，我分享了我所有的代码...！ Please find it and help me....I am doing well. 请找到它并帮助我....我很好。 actually it not gives any error. 实际上它没有任何错误。 so i am too much confuse. 所以我太困惑了。 so anyone can help me...Please. 这样任何人都可以帮助我...请。 Thank You. 谢谢。

My Dao Class is look as 我的道课是

package com.mvn.blog.dao;

import java.util.ArrayList;
import java.util.List;

import javax.transaction.Transactional;

import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import com.mvn.blog.domain.UserDomain;
import com.mvn.blog.dto.UserDto;
import com.mvn.blog.utility.CommonUtils;

@Repository
public class UserDaoImpl implements IUserDao {

    @Autowired
    SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sf) {
          this.sessionFactory = sf;

    }

    @Transactional
    public Boolean saveUser(UserDto userDto) throws Exception {
        Session session = this.sessionFactory.getCurrentSession();
        boolean result= false;
        UserDomain user = CommonUtils.convertObject(userDto, UserDomain.class);

        session.save(user);
        result = true;
        return result;
    }

    @Transactional
    public List<UserDto> getUserList() throws Exception {
        List<UserDto> userList = new ArrayList<UserDto>();
        Session session = this.sessionFactory.getCurrentSession();
        Criteria user = session.createCriteria(UserDomain.class);

        List<UserDomain> result = user.list();
        //System.out.println(result);
        for(UserDomain userDomain : result){
            UserDto userDto = CommonUtils.convertObject(userDomain, UserDto.class);
            userList.add(userDto);      
            }
        //System.out.println(userList);

        return userList;
    }

    }

}

My controllerClass 我的控制器类

package com.mvn.blog.controller;

import java.util.List;

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.servlet.ModelAndView;

import com.mvn.blog.domain.UserDomain;
import com.mvn.blog.dto.UserDto;
import com.mvn.blog.service.IUserMaintenance;
import com.mvn.blog.utility.CommonUtils;

@Controller
public class HomeController {


    @Autowired
    IUserMaintenance userMaintenance;


    @RequestMapping("/home")
    public String home(){
        return "index";
    }

    @RequestMapping(value = "/userlist" , method = RequestMethod.GET)
    public ModelAndView  getUserList() throws Exception{
        List<UserDto> userList = userMaintenance.getUserList();
        //System.out.println(userList);

        for(UserDto users : userList){
            System.out.println(users.getUsername()+" "+ users.getEmail()+" "+users.getPassword());

        }

        return new  ModelAndView("viewuser", "userList" , userList);
}

}





My Jsp File


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>   
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body>
<h2>User List</h2>  
<table border="2">  
<tr><th>Name</th><th>Email</th><th>Password</th><th>Edit</th><th>Delete</th></tr>  
   <c:forEach items="${userList}" var="user">   
   <tr>  
   <td><c:out value="${user.username}"/></td>  
   <td><c:out value="${user.email}"/></td>  
   <td><c:out value="${user.password}"/></td>  
   <td><a href="edituser/${user.userid}">Edit</a></td>  
   <td><a href="deleteuser/${user.userid}">Delete</a></td>  
   </tr>  
   </c:forEach>  
   </table>  
   <br/> 

</body>
</html>

Answer 1

This is bcoz you are using the old JSP 1.2 descriptor, defined by DTD. 这是您正在使用DTD定义的旧JSP 1.2描述符的bcoz。
The EL is disabled or ignored by default, you have to enable it manually. 默认情况下，禁用或忽略EL，您必须手动启用它。
use the standard JSP 2.0 or above descriptor, defined by w3c schema. 使用w3c模式定义的标准JSP 2.0或更高版本的描述符。

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
    id="WebApp_ID" version="3.0">
/...
</web-app>

Have a look at this reference 看看这个参考

为什么我无法使用Spring MVC和Hibernate在JSP页面中显示数据库值

问题描述

1 个解决方案

解决方案1
0 2018-02-08 06:06:08

为什么我无法使用Spring MVC和Hibernate在JSP页面中显示数据库值

问题描述

1 个解决方案

解决方案1 0 2018-02-08 06:06:08

解决方案1
0 2018-02-08 06:06:08