全局异常统一处理

 1 @Slf4j
 2 @RestControllerAdvice(basePackages = "com.xxx.controller")
 3 public class MyExceptionControllerAdvice {
 4 
 5 
 6     /**
 7      * @ExceptionHandler 是为了告诉RestControllerAdvice能处理哪些异常
 8      * @param e
 9      * @return
10      */
11     @ExceptionHandler(value= MethodArgumentNotValidException.class)
12     public R handleVaildException(MethodArgumentNotValidException e){
13         log.error("数据校验出现问题{}，异常类型：{}",e.getMessage(),e.getClass());
14         //获取数据校验的结果
15         BindingResult bindingResult = e.getBindingResult();
16 
17         Map<String,String> errorMap = new HashMap<>();
18         /**
19          * 获取所有的错误消息
20          * key 存错误字段
21          * value 存message
22          */
23         bindingResult.getFieldErrors().forEach((fieldError)->{
24             errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
25         });
26         return R.error(BizCodeEnume.VAILD_EXCEPTION.getCode(),BizCodeEnume.VAILD_EXCEPTION.getMsg()).put("data",errorMap);
27     }
28 
29     @ExceptionHandler(value = Throwable.class)
30     public R handleException(Throwable throwable){
31 
32         log.error("错误：",throwable);
33         return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(),BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
34     }
35 }

 1 /**
 2  * 返回数据
 3  *
 4  * @author Mark sunlightcs@gmail.com
 5  */
 6 public class R extends HashMap<String, Object> {
 7     private static final long serialVersionUID = 1L;
 8     
 9     public R() {
10         put("code", 0);
11         put("msg", "success");
12     }
13     
14     public static R error() {
15         return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知异常，请联系管理员");
16     }
17     
18     public static R error(String msg) {
19         return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
20     }
21     
22     public static R error(int code, String msg) {
23         R r = new R();
24         r.put("code", code);
25         r.put("msg", msg);
26         return r;
27     }
28 
29     public static R ok(String msg) {
30         R r = new R();
31         r.put("msg", msg);
32         return r;
33     }
34     
35     public static R ok(Map<String, Object> map) {
36         R r = new R();
37         r.putAll(map);
38         return r;
39     }
40     
41     public static R ok() {
42         return new R();
43     }
44 
45     @Override
46     public R put(String key, Object value) {
47         super.put(key, value);
48         return this;
49     }
50     public  Integer getCode() {
51 
52         return (Integer) this.get("code");
53     }
54 
55 }

 1 public enum BizCodeEnume {
 2     UNKNOW_EXCEPTION(10000,"系统未知异常"),
 3     VAILD_EXCEPTION(10001,"参数格式校验失败");
 4 
 5     private int code;
 6     private String msg;
 7     BizCodeEnume(int code,String msg){
 8         this.code = code;
 9         this.msg = msg;
10     }
11 
12     public int getCode() {
13         return code;
14     }
15 
16     public String getMsg() {
17         return msg;
18     }
19 }