From 3cb7b4971a5760e8f515f714188cc192b0d0a5a2 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 4 Nov 2025 16:15:13 +0800
Subject: [PATCH] =?UTF-8?q?=E8=8B=8D=E7=A9=B9=E5=A4=96=E5=8D=96--=E6=96=B0?=
 =?UTF-8?q?=E5=A2=9E=E5=91=98=E5=B7=A5=E5=8A=9F=E8=83=BD=E5=AE=8C=E5=96=84?=
 =?UTF-8?q?=E4=B8=80-=E7=B3=BB=E7=BB=9F=E7=BA=A7=E5=88=AB=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8=E5=A4=84=E7=90=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/sky/constant/MessageConstant.java     |  1 +
 .../sky/handler/GlobalExceptionHandler.java   | 27 +++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/sky-common/src/main/java/com/sky/constant/MessageConstant.java b/sky-common/src/main/java/com/sky/constant/MessageConstant.java
index c6b645d..4af1974 100644
--- a/sky-common/src/main/java/com/sky/constant/MessageConstant.java
+++ b/sky-common/src/main/java/com/sky/constant/MessageConstant.java
@@ -6,6 +6,7 @@ package com.sky.constant;
 public class MessageConstant {
 
     public static final String PASSWORD_ERROR = "密码错误";
+    public static final String ALEADY_EXIST = "已经存在";
     public static final String ACCOUNT_NOT_FOUND = "账号不存在";
     public static final String ACCOUNT_LOCKED = "账号被锁定";
     public static final String UNKNOWN_ERROR = "未知错误";
diff --git a/sky-server/src/main/java/com/sky/handler/GlobalExceptionHandler.java b/sky-server/src/main/java/com/sky/handler/GlobalExceptionHandler.java
index 1a48598..ff51ff5 100644
--- a/sky-server/src/main/java/com/sky/handler/GlobalExceptionHandler.java
+++ b/sky-server/src/main/java/com/sky/handler/GlobalExceptionHandler.java
@@ -1,11 +1,14 @@
 package com.sky.handler;
 
+import com.sky.constant.MessageConstant;
 import com.sky.exception.BaseException;
 import com.sky.result.Result;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 
+import java.sql.SQLIntegrityConstraintViolationException;
+
 /**
  * 全局异常处理器，处理项目中抛出的业务异常
  */
@@ -24,4 +27,28 @@ public class GlobalExceptionHandler {
         return Result.error(ex.getMessage());
     }
 
+
+    /**
+     * 捕获系统级的数据库异常
+     * @param ex
+     * @return
+     */
+    @ExceptionHandler
+    public Result exceptionHandler(SQLIntegrityConstraintViolationException ex){
+        //Duplicate entry 'lisi' for key 'idx_username'
+        String message = ex.getMessage();
+        log.error("异常信息：{}",message );
+        //动态获取错误数据
+        if (message.contains("Duplicate entry")) {
+            String[] msgs = message.split(" ");
+            String username = msgs[2];
+//            String msg = username + "已经存在";
+            String msg = username + MessageConstant.ALEADY_EXIST;
+            return Result.error(msg);
+        }
+
+//        return Result.error(ex.getMessage());
+        return Result.error(MessageConstant.UNKNOWN_ERROR);
+    }
+
 }