1.建立服务器监听程序，等待web浏览器发送请求

2.当接收到web服务器的链接请求时新建响应线程接受web服务器的访问请求

3.响应线程发送浏览器请求的页面给web浏览器，关闭打开的资源结束自身线程。

-1 Create the server listener to wait for the web browser sends a request when receiving links to a web server request a new response thread received access to the web server request 3. Response the thread sending browser requests a page to the web browser, turn off open resources to end its own thread.