使用spring-test与junit整合进行单元测试：

import java.util.List;

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 com.jm.dao.TestViewMapper;
import com.jm.model.Bug;
import com.jm.model.TestView;
import com.jm.service.UserServiceI;

//让测试运行于[spring](http://lib.csdn.net/base/javaee)测试环境
@RunWith(SpringJUnit4ClassRunner.class)
//载入spring的xml配置文件
@ContextConfiguration(locations = { "classpath:spring.xml", "classpath:spring-mybatis.xml" })
@Transactional  
@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
public class TestUserService {
    @Autowired
    private UserServiceI userService;
    @Autowired
    private TestViewMapper testViewMapper;

    @Test
    public void testTbug() {
         Bug tbug = userService.getBugById(1L);
         System.out.println(tbug.gettBugId());
        List<TestView> tvServiceList = userService.getTestView();
        
        List<TestView> tvDaoList = testViewMapper.loadTestView();
        for (TestView tv : tvServiceList) {
            System.out.println(tv);
        }
        for (TestView tv : tvDaoList) {
            System.out.println(tv);
        }
    }
}

以上需要的主要jar包：

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11-beta-1</version>
            <scope>test</scope>
        </dependency>

使用junit原生进行单元测试：

import java.util.List;

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 com.jm.dao.TestViewMapper;
import com.jm.model.Bug;
import com.jm.model.TestView;
import com.jm.service.UserServiceI;

@Test
public class TestUserService {
    @Autowired
    private UserServiceI userService;
    @Autowired
    private TestViewMapper testViewMapper;
    //表示spring上下文
    private ApplicationContext ac;
    
    /**
     * before:执行任意@Test单元方法之前所要执行的方法
     * 
     * @author JM 2016-12-1 下午10:05:02
     */
    @Before
    public void before() {
        ac = new ClassPathXmlApplicationContext(new String[] { "spring.xml", "spring-mybatis.xml" });
        userService = (UserServiceI) ac.getBean("userService");
        testViewMapper = (TestViewMapper) ac.getBean("userService");
    }

    @Test
    public void testTbug() {
        Bug tbug = userService.getBugById(1L);
        System.out.println(tbug.gettBugId());
        List<TestView> tvServiceList = userService.getTestView();

        List<TestView> tvDaoList = testViewMapper.loadTestView();
        for (TestView tv : tvServiceList) {
            System.out.println(tv);
        }
        for (TestView tv : tvDaoList) {
            System.out.println(tv);
        }
    }
}