SSH网站开发实录（4）(实现登录功能)SpringMVC+Spring+Hibernate

上一节已经测试成功，证明咱们整合的SSH框架是可以用的

这一节实现登录功能的后台逻辑：

因为要用到注解

1.导入三个spring依赖包：



2.配置applicationContext.xml扫描的文件夹和注解的类型

<!-- 扫描注解Repository -->
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Repository" />
<!-- 扫描注解Service -->
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Service" />

第一步：完成后台逻辑






1.1创建业务接口ManagerUserDao

package com.edu.hpu.laboratory.dao;

import com.edu.hpu.laboratory.model.ManagerUser;
//业务接口
public interface ManagerUserDao {

ManagerUser findByUserNameAndPassword(ManagerUser user);//根据用户名和密码查找用户对象
void save(ManagerUser user);//保存用户

}

1.2创建业务接口的实现类ManagerUserDaoImpl 

package com.edu.hpu.laboratory.dao.impl;

import java.util.List;

import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate4.HibernateTemplate;
import org.springframework.orm.hibernate4.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;

import com.edu.hpu.laboratory.dao.ManagerUserDao;
import com.edu.hpu.laboratory.model.ManagerUser;

@Repository
public class ManagerUserDaoImpl extends HibernateDaoSupport implements ManagerUserDao{

@Autowired
public void setSuperSessionFactory(SessionFactory sessionFactory)
{
super.setSessionFactory(sessionFactory);
}

@Override
public ManagerUser findByUserNameAndPassword(ManagerUser user) {
// TODO Auto-generated method stub

String hql = "from ManagerUser u where u.userName=? and u.password=?";
List<ManagerUser> list = (List<ManagerUser>)getHibernateTemplate().find(hql, user.getUserName(),user.getPassword());
if(list.size() > 0)
{
return list.get(0);
}

return null;
}

@Override
public void save(ManagerUser user) {
// TODO Auto-generated method stub
this.getHibernateTemplate().save(user);

}

}

1.3创建服务接口ManagerUserService

1.4创建服务接口实现类ManagerUserServiceImpl



ManagerUserService

package com.edu.hpu.laboratory.service;

import com.edu.hpu.laboratory.model.ManagerUser;

public interface ManagerUserService {
ManagerUser login(ManagerUser user);//登录判断
void saveManagerUser(ManagerUser user);//注册
}

ManagerUserServiceImpl

package com.edu.hpu.laboratory.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.edu.hpu.laboratory.dao.ManagerUserDao;
import com.edu.hpu.laboratory.model.ManagerUser;
import com.edu.hpu.laboratory.service.ManagerUserService;

@Service
@Transactional
public class ManagerUserServiceImpl implements ManagerUserService{

@Autowired
private ManagerUserDao userDao;

@Override
public ManagerUser login(ManagerUser user) {
// TODO Auto-generated method stub
return userDao.findByUserNameAndPassword(user);
}

@Override
public void saveManagerUser(ManagerUser user) {
// TODO Auto-generated method stub
userDao.save(user);
}
}

测试一下后台逻辑：

在测试类上面添加注解：



在类中新建属性并添加注解

@Resource
private ManagerUserService userservice;

测试类代码

package com.edu.hpu.laboratory.test;

import static org.junit.Assert.*;

import javax.annotation.Resource;
import javax.sql.DataSource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.edu.hpu.laboratory.model.ManagerUser;
import com.edu.hpu.laboratory.service.ManagerUserService;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath*:applicationContext.xml"})
public class TestsSsh {

@Resource
private ManagerUserService userservice;
@Test
public void testSave(){
//测试注册方法
ManagerUser managerUser = new ManagerUser();
managerUser.setUserName("user2");
managerUser.setPassword("1223");
userservice.saveManagerUser(managerUser);

}
@Test
public void login(){
//测试登录
ManagerUser managerUser = new ManagerUser();
managerUser.setUserName("user2");
managerUser.setPassword("1223");
ManagerUser loginUser = userservice.login(managerUser);
if(loginUser == null){
System.out.println("没有该用户");
return;
}
System.out.println(loginUser.toString());
}
}

首先测试登录方法login（）
因为后台没有用户所以：



然后测试注册方法testSave()保存成功



再次测试登录方法login()登录成功



关于登录这一节暂时先讲这么多

下一节讲如何与前端登录界面进行数据交互

提前透露一下需要Controller类并配置SpringMVC静态资源和视图解析器

完！