spring boot 使用 ControllerAdvice处理全局异常

末蓝、 2023-02-21 11:58 71阅读 0赞

异常处理类，给前端返回异常信息的类，数据格式根据自己意愿随意组装：

@ControllerAdvice
    @ResponseBody
    public class ApiExceptionHandler {
    
        private static final Logger logger = LoggerFactory.getLogger(ApiExceptionHandler.class);
    
        @ExceptionHandler(value = Exception.class)
        public Map<String,Object> errorHandler(Exception e) {
            logger.error("错误信息：",e);
            Map<String,Object> result = new HashMap<String, Object>();
            result.put("code",1);
            result.put("msg",e.getMessage());
            return result;
        }
    
        @ExceptionHandler(value = SelfRunException.class)
        public Map<String,Object> errorSelfException(SelfRunException e) throws Exception{
            logger.error("错误信息：",e);
            Map<String,Object> result = new HashMap<String, Object>();
            result.put("code",e.getCode());
            result.put("msg",e.getMsg());
            return result;
        }
    
    }

书写测试类开始测试：

@Controller
    public class ControllerAdviceTest {
    
        private static final Logger logger = LoggerFactory.getLogger(ControllerAdviceTest.class);
        /**
           测试没有自定义异常的异常
          /
        @RequestMapping(value = "/testControllerAdvice")
        @ResponseBody
        public Map<String,Object> testControllerAdvice() {
            Map<String,Object> map = new HashMap<String, Object>();
            map.put("code",0);
            map.put("msg","正确");
    
            int a = 1 / 0;  // 故意制造异常
            return map;
        }
        
    
        /**
           测试自定义异常
        /
        @RequestMapping(value = "/testConAdvSelfException")
        @ResponseBody
        public Map<String,Object> testConAdvSelfException() {
            Map<String,Object> map = new HashMap<String, Object>();
            if(1 == 2) {
                map.put("code",0);
                map.put("msg","正确");
                return map;
            }else{
                throw  new SelfRunException("判断错误",1);
            }
        }
    }

先测试没有自定义异常的方法：

localhost:8086/testControllerAdvice

![20200630164059997.jpg][]

测试自定义异常方法：

localhost:8086/testConAdvSelfException

![20200630164247986.jpg][]

自定义异常类：

@Data
    public class SelfRunException extends RuntimeException{
    
        private String msg;
        private int code;
        private Object data;
    
        public SelfRunException(String msg, int code) {
            super();
            this.msg = msg;
            this.code=code;
        }
    
    }

[20200630164059997.jpg]: https://img-blog.csdnimg.cn/20200630164059997.jpg
[20200630164247986.jpg]: https://img-blog.csdnimg.cn/20200630164247986.jpg