SSE部署后无法连接问题解决

1. 问题现象

通过域名访问 https://api-uat.sfxs.com/sse/subscribe?token=Bearer%20eyJUxMiJ9.eyJhY2NvdW50IjoiYWRtaWZ0NvZGUiOiIwMDEiLCJyb2xidXNlcm5hbWUiOiLotoXnuqfnrqHnkIblkZgifQ.tlz9N61Y4

一直无法正常连接

2. 问题解决

nginx.conf进行配置

    server {

        location /sse {
            # 确保使用正确的协议版本
            proxy_http_version 1.1;
            # 启用长连接
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            # 传递主机头信息
            proxy_set_header Host $host;
            # 避免缓存
            proxy_cache_bypass $http_upgrade;
            
            # 连接到后端服务
            proxy_pass http://api-uat.sfxs.com/sse;
            
            # 调整超时时间以适应长连接
            proxy_read_timeout 3600s;
            proxy_send_timeout 3600s;
            
            # 关闭缓冲
            proxy_buffering off;
        }

        # CORS 配置（如果需要）
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';

        ....
    }
}