IDEA中SSM项目单元测试

 Junit4单元测试

1. 在maven中加入Junit4依赖

    <dependency>
               <groupId>junit</groupId>
               <artifactId>junit</artifactId>
               <version>4.12</version>
               <!-- 指定范围，在测试时才会加载 -->
               <scope>test</scope>
           </dependency>
2. 在src/test/java文件夹下面新建XXXTest测试类

//配置spring和junit整合，这样junit在启动时就会加载spring容器
@RunWith(SpringJUnit4ClassRunner.class)
//告诉junit spring的配置文件
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
public class CommentTest {

    //注入Service层实现类
    @Autowired
    private CommentService commentService;

    //注意！@Test不可少
    @Test
    public void studentTest() {
        System.out.println(commentService.listComment(2));
    }

}