我用的Junit测试
写法如下:
@Component
public class Test_SSM {
@Autowired
private UserService userService;
@Test
public void show() {
System.out.println(userService);
}
}
然后调用测试show方法
输出为 null
只需这样改, 测试类上的两行注解
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration( locations = "classpath:applicationContext.xml")
/*locations属性值 为 spring 配置文件路径*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration( locations = "classpath:applicationContext.xml")
public class Test_SSM {
@Autowired
private UserService userService;
@Test
public void show() {
System.out.println(userService);
}
}