TASK: 全局异常处理，代码优化，测试数据库连接信息变更;

src/main/java/com/ai/da/common/config/exception/BusinessException.java

@@ -1,8 +1,18 @@
 package com.ai.da.common.config.exception;
 
+import com.ai.da.common.context.UserContext;
 import com.ai.da.common.response.ResultEnum;
+import com.ai.da.model.vo.AuthPrincipalVo;
 import lombok.Data;
 
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.util.Locale;
+import java.util.Objects;
+import java.util.PropertyResourceBundle;
+import java.util.ResourceBundle;
+
 /**
  * @author: dangweijian
  * @description: 业务异常
@@ -15,14 +25,44 @@ public class BusinessException extends RuntimeException {
     private String msg;
 
     public BusinessException(ResultEnum resultEnum) {
-        super(resultEnum.getMsg());
         this.code = resultEnum.getCode();
-        this.msg = resultEnum.getMsg();
+        this.msg = getMessageFromResource(resultEnum.getMsg(), getUserLocale());
     }
 
     public BusinessException(String msg) {
-        super(msg);
         this.code = ResultEnum.FAIL.getCode();
-        this.msg = msg;
+        this.msg = getMessageFromResource(msg, getUserLocale());
     }
-}
+
+    public BusinessException(String msg, Integer code) {
+        this.code = code;
+        this.msg = getMessageFromResource(msg, getUserLocale());
+    }
+
+    public BusinessException(Throwable cause) {
+        this.code = ResultEnum.FAIL.getCode();
+        this.msg = getMessageFromResource(cause.getMessage(), getUserLocale());
+    }
+
+    private static Locale getUserLocale() {
+        AuthPrincipalVo userInfo = UserContext.getUserHolder();
+        if (Objects.isNull(userInfo)) {
+            return new Locale("en");
+        }
+        return new Locale(userInfo.getLanguage());
+    }
+
+    private static String getMessageFromResource(String msg, Locale userLocale) {
+        try (InputStream inputStream = BusinessException.class.getClassLoader().getResourceAsStream("messages_" + userLocale.getLanguage() + ".properties")) {
+            if (inputStream != null) {
+                ResourceBundle bundle = new PropertyResourceBundle(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
+                if (bundle.containsKey(msg)) {
+                    return bundle.getString(msg);
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return msg; // 如果找不到对应的资源文件，返回原始的消息
+    }
+}

src/main/java/com/ai/da/common/config/exception/ExceptionCatch.java

@@ -64,7 +64,8 @@ public class ExceptionCatch {
     @ExceptionHandler(BindException.class)
     public Response<String> bindExceptionHandler(BindException e) {
         log.error("参数错误bind：{}", e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
-        return Response.fail(ResultEnum.FAIL.getCode(), e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
+        BusinessException businessException = new BusinessException(e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
+        return Response.error(businessException.getCode(), businessException.getMsg());
     }
 
     /**
@@ -75,9 +76,10 @@ public class ExceptionCatch {
      */
     @ResponseBody
     @ExceptionHandler(MethodArgumentNotValidException.class)
-    public Response<String> methodArgumentNotValidExceptionHandler(MethodArgumentNotValidException e) {
+    public Response<String> handleValidationException(MethodArgumentNotValidException e) {
         log.error("参数错误bind：{}", e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
-        return Response.fail(ResultEnum.FAIL.getCode(), e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
+        BusinessException businessException = new BusinessException(e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
+        return Response.error(businessException.getCode(), businessException.getMsg());
     }
 
     //初始化,不可预知异常自定义错误编码