72 lines
2.0 KiB
Markdown
72 lines
2.0 KiB
Markdown
# CORS问题解决方案
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## 问题描述
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前端从 `http://101.43.95.130:8038` 访问后端 `http://localhost:8037` 时,浏览器阻止了跨域请求。
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错误信息:
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```
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Access to XMLHttpRequest at 'http://localhost:8037/auth/register' from origin 'http://101.43.95.130:8038'
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has been blocked by CORS policy: The request client is not a secure context and the resource is in
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more-private address space `local`.
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```
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## 解决方案
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### 1. 更新后端CORS配置 ✅
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在 `backend/app/core/config.py` 中添加了允许的来源:
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```python
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CORS_ORIGINS: str = "http://localhost:3000,http://127.0.0.1:3000,http://localhost:8038,http://101.43.95.130:8038"
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```
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### 2. 更新前端API地址 ✅
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修改了 `frontend/src/api/index.ts`,使其能够根据当前主机自动推断后端地址:
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- 如果前端运行在 `localhost`,后端使用 `http://localhost:8037`
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- 如果前端运行在公网IP(如 `101.43.95.130:8038`),后端使用 `http://101.43.95.130:8037`
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### 3. 更新Docker Compose配置 ✅
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在 `docker-compose.dev.yml` 中:
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- 前端环境变量:`VITE_API_URL=http://101.43.95.130:8037`
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- 后端环境变量:添加 `CORS_ORIGINS` 配置
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## 验证
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重启服务后,CORS问题应该已解决:
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```bash
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# 重启服务
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docker-compose -f docker-compose.dev.yml restart frontend backend
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# 验证CORS配置
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curl -X OPTIONS http://localhost:8037/api/v1/auth/register \
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-H "Origin: http://101.43.95.130:8038" \
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-H "Access-Control-Request-Method: POST" \
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-v
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```
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应该看到 `Access-Control-Allow-Origin: http://101.43.95.130:8038` 响应头。
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## 注意事项
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1. **生产环境配置**:在生产环境中,应该:
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- 使用HTTPS
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- 限制CORS来源为实际的前端域名
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- 不要使用 `*` 作为允许的来源
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2. **API路径**:确保API路径正确:
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- 注册API:`/api/v1/auth/register`(不是 `/auth/register`)
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3. **网络配置**:确保:
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- 后端服务监听在 `0.0.0.0:8037`(不是 `127.0.0.1`)
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- 防火墙允许8037端口访问
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---
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**状态**: ✅ 已修复
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**时间**: 2024年
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