SpringBoot全局異常捕獲

@ControllerAdvice  //定義為切面攔截所有
public class GlobalExceptionHandler {
    @ExceptionHandler(RuntimeException.class)
    @ResponseBody // 攔截返回是 json返回結果
    public Map<String, Object> exceptionHandler() {
        Map<String, Object> result=new HashMap<String, Object>();
        result.put("code","500");
        result.put("msg","系統錯誤");
        //這里可以處理
        return result;
    }

}