``` 1. 添加依賴 添加spring-test 2. 通過@RunWith注解，指定spring的運行器 Spring的運行器是SpringJunit4ClassRunner 3. 通過@ContextConfiguration注解，指定spring運行器需要的配置文件路徑 4. 通過@Autowired注解給測試類中的變量注入數據 ``` ### pom ``` <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.1.7.RELEASE</version> <scope>test</scope> </dependency> ``` ### 測試 ~~~ @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = "classpath:applicationContext.xml") public class testUserService { @Autowired private UserService userService; @Test public void testIoc(){ userService.saveUser(); } } ~~~