LockTest.java

public class LockTest {
    
    @Autowired
    private LockService lockService;

    @Test
    public void testGetKey throws Exception {
        for (int i = 0; i < 10; i++) {
            final int request = i;
            new Thread(() -> {
                String result = lockService.getKeyByrequestId(request);
                System.out.println("thread result is: " + result + " and thread is: " + request);
            }).start();
        }
        // 等待所以线程执行完毕，junit不支持异步
        Thread.sleep(20000);
    }
}