From 25ff124f372ff3f8d728af4a9c9a8cef840cc4bb Mon Sep 17 00:00:00 2001
From: lrs <1006059906@qq.com>
Date: Wed, 19 May 2021 15:09:18 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96?=
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---
 .../validator/controller/TestController.java  |  8 ++++
 .../GlobalExceptionHandlerAdvice.java         | 48 +++++++++++--------
 2 files changed, 37 insertions(+), 19 deletions(-)

diff --git a/springboot-validator/src/main/java/top/lrshuai/validator/controller/TestController.java b/springboot-validator/src/main/java/top/lrshuai/validator/controller/TestController.java
index 9b0b71d..3b47bd4 100644
--- a/springboot-validator/src/main/java/top/lrshuai/validator/controller/TestController.java
+++ b/springboot-validator/src/main/java/top/lrshuai/validator/controller/TestController.java
@@ -1,17 +1,25 @@
 package top.lrshuai.validator.controller;
 
 import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
 import top.lrshuai.validator.dto.TestDto;
 
 import javax.validation.Valid;
+import javax.validation.constraints.Max;
+import javax.validation.constraints.NotNull;
 
 @Validated
 @RestController
 public class TestController {
 
+    @GetMapping("/get")
+    public String getUser(@NotNull(message = "name 不能为空") String name, @Max(value = 100, message = "age不能大于100岁") Integer age) {
+        return "name: " + name + " ,age:" + age;
+    }
+
     @PostMapping("/test")
     public Object test(@RequestBody @Valid TestDto dto){
         System.out.println("dto="+dto.toString());
diff --git a/springboot-validator/src/main/java/top/lrshuai/validator/exception/GlobalExceptionHandlerAdvice.java b/springboot-validator/src/main/java/top/lrshuai/validator/exception/GlobalExceptionHandlerAdvice.java
index efd1807..f0282cf 100644
--- a/springboot-validator/src/main/java/top/lrshuai/validator/exception/GlobalExceptionHandlerAdvice.java
+++ b/springboot-validator/src/main/java/top/lrshuai/validator/exception/GlobalExceptionHandlerAdvice.java
@@ -1,20 +1,15 @@
 package top.lrshuai.validator.exception;
 
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.util.StringUtils;
-import org.springframework.validation.BindingResult;
-import org.springframework.validation.FieldError;
 import org.springframework.web.bind.MethodArgumentNotValidException;
-import org.springframework.web.bind.MissingServletRequestParameterException;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
-import org.springframework.web.bind.annotation.ResponseBody;
 import top.lrshuai.validator.commons.Result;
 
-import javax.servlet.http.HttpServletRequest;
+import javax.validation.ConstraintViolation;
 import javax.validation.ConstraintViolationException;
-import javax.xml.bind.ValidationException;
+import javax.validation.ValidationException;
 
 /**
  * 描述：全局统一异常处理
@@ -24,27 +19,42 @@
 @ControllerAdvice
 public class GlobalExceptionHandlerAdvice {
 
+
     /**
-     * 验证异常
+     * 参数验证异常
      */
     @ExceptionHandler(value = {MethodArgumentNotValidException.class})
-    @ResponseBody
     public Result handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
-        BindingResult bindingResult = e.getBindingResult();
-        String errorMsg = "";
-        for (FieldError fieldError : bindingResult.getFieldErrors()) {
-            errorMsg += fieldError.getDefaultMessage() + ";";
-        }
+        String errorMsg =  e.getBindingResult().getFieldError().getDefaultMessage();
         if (!StringUtils.isEmpty(errorMsg)) {
-            log.error("MethodArgumentNotValidException：" + errorMsg);
             return Result.error(errorMsg);
         }
-        return Result.error();
+        log.error(e.getMessage(),e);
+        return Result.error(e.getMessage());
+    }
+
+    /**
+     * 参数验证异常
+     */
+    @ExceptionHandler(value = {ValidationException.class})
+    public Result constraintViolationException(ValidationException e) {
+        if(e instanceof ConstraintViolationException){
+            ConstraintViolationException err = (ConstraintViolationException) e;
+            ConstraintViolation<?> constraintViolation = err.getConstraintViolations().stream().findFirst().get();
+            String messageTemplate = constraintViolation.getMessageTemplate();
+            if(!StringUtils.isEmpty(messageTemplate)){
+                return Result.error(messageTemplate);
+            }
+        }
+        log.error(e.getMessage(),e);
+        return Result.error(e.getMessage());
     }
 
-    @ExceptionHandler(Exception.class)
-    @ResponseBody
-    public Result handlerException(Exception e) {
+    /**
+     * 默认异常
+     */
+    @ExceptionHandler(value = Exception.class)
+    public Result defaultException(Exception e) {
         log.error("系统异常:" + e.getMessage(), e);
         return Result.error();
     }