使用Spring Validation实现参数校验

引入Spring Validation 起步依赖

<dependency>
   <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-validation</artifactId>
</dependency>

参数校验失败异常处理

所有的http请求异常都会被拦截处理
exception/GlobalExceptionHandler

package com.devops.exception;

import com.devops.pojo.Result;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

/*
* 全局异常处理器
* */
@RestControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler(Exception.class)
    public Result handlerException(Exception e) {
        e.printStackTrace();
        if (e == null || e.getMessage() == null || e.getMessage().isEmpty()) {
            return Result.error("操作失败");
        } else {
            return Result.error(e.getMessage());
        }
    }
}