解决本地流式数据响应是实时的，但是服务器上却无法实时的问题
修改nginx配置

       location /java-api/ {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header REMOTE-HOST $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass http://localhost:9090/;
            proxy_connect_timeout 120000;
            proxy_send_timeout 120000;
            proxy_read_timeout 120000;
            client_body_timeout 120000;
            send_timeout 120000;
            # 禁用响应缓冲
            proxy_buffering off;
            # 设置缓冲区大小
            proxy_buffers 8 4k;
            proxy_buffer_size 4k;
            proxy_busy_buffers_size 16k; # 设置为更小的值
            # 启用长连接支持
            keepalive_timeout 65;
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            # 启用分块传输编码
            chunked_transfer_encoding on;
   }
	主要是加了这一块
	   # 禁用响应缓冲
            proxy_buffering off;
            # 设置缓冲区大小
            proxy_buffers 8 4k;
            proxy_buffer_size 4k;
            proxy_busy_buffers_size 16k; # 设置为更小的值
            # 启用长连接支持
            keepalive_timeout 65;
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            # 启用分块传输编码
            chunked_transfer_encoding on;