springmvc单元测试 如何使用注入变量

springmvc单元测试 如何使用注入变量，如何添加注解

 

package cn.itcast.mp.simple;

import cn.itcast.mp.simple.mapper.UserMapper;

import cn.itcast.mp.simple.pojo.User;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = "classpath:applicationContext.xml")

public class TestSpringMP {

@Autowired

private UserMapper userMapper;

@Test

public void testSelectList(){

List<User> users = this.userMapper.selectList(null);

for (User user : users) {

System.out.println(user);

}

}

}