springboot基础(27):随机数

配置文件里的random

1. 添加application.yml配置文件内容

randomtest:
  id: ${random.int}           #随机数int
  name: ${random.uuid}        #随机uuid
  age: ${random.int(4,9)}     #随机数4到9
  time: ${random.long}        #随机数long值
  name2: hello${random.int}  #组合字符串

2. 编写测试用例

@SpringBootTest
class SpringbootSsmpdemoApplicationTests {

    @Value("${randomtest.id}")
    private  int id;

    @Value("${randomtest.name}")
    private String name;

    @Value("${randomtest.age}")
    private int age;

    @Value("${randomtest.time}")
    private long time;

    @Value("${randomtest.name2}")
    private String name2;

    @Test
    void contextLoads() {
        System.out.println(id);
        System.out.println(name);
        System.out.println(age);
        System.out.println(time);
        System.out.println(name2);

    }
}

3. 执行