1. 首先要下载配套的spring-boot-starter-test包，注意版本要对应。

compile("org.springframework.boot:spring-boot-starter-web:2.0.2.RELEASE")// Use JUnit test frameworktestImplementation 'junit:junit:4.12'// https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-testtestCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: '2.0.2.RELEASE'

 

2. 示例

@RunWith(SpringRunner.class)@SpringBootTest(classes = Springboot启动函数.class)public class NumberServiceT {    @Autowired    NumberService ns;    @Test    public void getNumberList() {    //    NumberService ns = new NumberService();    ns.getUseableNumber();    }}