Spring整合Junit单元测试

Spring整合Junit单元测试

POM

<dependency>
    <groupId>junitgroupId>
    <artifactId>junitartifactId>
    <version>4.13.2version>
dependency>

<dependency>
    <groupId>org.springframeworkgroupId>
    <artifactId>spring-testartifactId>
    <version>5.3.14version>
dependency>
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注意：junit的依赖至少要是4.12版本,否则出现如下异常：
java.lang.IllegalStateException: SpringJUnit4ClassRunner requires JUnit 4.12 or higher.

单元测试编码

// 使用Spring整合Junit专用的类加载器
@RunWith(SpringJUnit4ClassRunner.class)
// 加载配置文件或者配置类
//@ContextConfiguration(classes = {SpringConfiguration.class}) //加载配置类
@ContextConfiguration(locations = {"classpath:spring.xml"})//加载配置文件
public class UserTest {
    @Autowired
    private UserService userService;

    @Test
    public void selectAllUser() {
        List<User> users = userService.selectAllUser();
        for (User i : users) {
            System.out.println(i);
        }
    }
}
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