feat: add unified API error handler with user-friendly messages

novalon-manage-web/src/utils/errorHandler.ts

@@ -0,0 +1,113 @@
+import { ElMessage } from 'element-plus'
+
+export interface ApiError {
+  code: string
+  message: string
+  details?: Record<string, any>
+  timestamp: string
+  path: string
+}
+
+export class ApiErrorHandler {
+  static handle(error: any): void {
+    if (!error.response) {
+      this.handleNetworkError(error)
+      return
+    }
+
+    const { status, data } = error.response
+    const apiError = data as ApiError
+
+    switch (status) {
+      case 400:
+        this.handleBadRequest(apiError)
+        break
+      case 401:
+        this.handleUnauthorized(apiError)
+        break
+      case 403:
+        this.handleForbidden(apiError)
+        break
+      case 404:
+        this.handleNotFound(apiError)
+        break
+      case 409:
+        this.handleConflict(apiError)
+        break
+      case 422:
+        this.handleValidationError(apiError)
+        break
+      case 500:
+        this.handleInternalServerError(apiError)
+        break
+      case 502:
+      case 503:
+      case 504:
+        this.handleServiceUnavailable(apiError)
+        break
+      default:
+        this.handleUnknownError(apiError)
+    }
+  }
+
+  private static handleNetworkError(error: any): void {
+    ElMessage.error('网络连接失败，请检查网络设置')
+    console.error('Network Error:', error)
+  }
+
+  private static handleBadRequest(error: ApiError): void {
+    ElMessage.error(error.message || '请求参数错误')
+    console.error('Bad Request:', error)
+  }
+
+  private static handleUnauthorized(error: ApiError): void {
+    ElMessage.error('登录已过期，请重新登录')
+    localStorage.removeItem('token')
+    window.location.href = '/login'
+    console.error('Unauthorized:', error)
+  }
+
+  private static handleForbidden(error: ApiError): void {
+    ElMessage.error('没有权限访问该资源')
+    console.error('Forbidden:', error)
+  }
+
+  private static handleNotFound(error: ApiError): void {
+    ElMessage.error(error.message || '请求的资源不存在')
+    console.error('Not Found:', error)
+  }
+
+  private static handleConflict(error: ApiError): void {
+    ElMessage.error(error.message || '资源冲突，请刷新后重试')
+    console.error('Conflict:', error)
+  }
+
+  private static handleValidationError(error: ApiError): void {
+    if (error.details) {
+      const messages = Object.values(error.details).join('、')
+      ElMessage.error(messages)
+    } else {
+      ElMessage.error(error.message || '数据验证失败')
+    }
+    console.error('Validation Error:', error)
+  }
+
+  private static handleInternalServerError(error: ApiError): void {
+    ElMessage.error('服务器内部错误，请稍后重试')
+    console.error('Internal Server Error:', error)
+  }
+
+  private static handleServiceUnavailable(error: ApiError): void {
+    ElMessage.error('服务暂时不可用，请稍后重试')
+    console.error('Service Unavailable:', error)
+  }
+
+  private static handleUnknownError(error: ApiError): void {
+    ElMessage.error(error.message || '未知错误')
+    console.error('Unknown Error:', error)
+  }
+}
+
+export const handleApiError = (error: any): void => {
+  ApiErrorHandler.handle(error)
+}