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gitee address (need to pick up by yourself)AopProxy duplicate submission: prevent duplicate submission (gitee.com)

@RestController
public class SubmissionController {
 
    @Autowired
    private SubmissionService submissionService;
 
    private static Jedis jedis = new Jedis("localhost",6379);
    private String lock = "lock";
    private String lockValue = "locked";
    private int gqsj = 5;
    private String ok = "OK";
 
    @PostMapping("/submit")
    public void handleSubmitForm(@RequestParam String name, @RequestParam int age) {
        SubmissionService submissionServiceProxy = (SubmissionService) Proxy.newProxyInstance(submissionService.getClass().getClassLoader(), new Class[]{SubmissionService.class}, (proxy, method, args) -> {
            SetParams params = new SetParams();
            params.nx().ex(gqsj);
            String res = jedis.set(lock, lockValue,params);
            if (ok.equals(res)){
                Object invoke = method.invoke(submissionService,name,age);
                System.out.println("提交成功");
                return invoke;
            }else {
                System.out.println("不允许重复提交");
                return null;
            }
        });
 
        submissionServiceProxy.insert(name, age);
 
 
//      存疑？第一天晚上return null后汇报一个空指针错误，奇怪的是第二天不报错了
//      希望懂得大佬给小弟支个招
 
//        try{
//            submissionServiceProxy.insert(name, age);
//        }catch (NullPointerException e){
//            System.out.println("禁止重复提交");
//        }
    }
}

The idea is to use a proxy to execute the method, slice it using the idea of ​​AOP, add a distributed lock before executing the method. Here, the distributed lock uses redis.nx, and adds an expiration time to prevent deadlock. I only did a simple simulation as a whole, and it is relatively simple to write. If there are any errors or deficiencies, please correct me and make progress together.