httpServlet api的一些简单使用记录

说明：HttpServlet是从GenericServlet继承来的一个静态类，HttpServelt的子类必须至少实现HttpServlet的一个方法:

1 doGet ------get请求
2 doPost------post 请求
3 doPut——---put请求
4 doDelete----delete请求
5 init and destroy
6 getServletInfo

注意：不需要覆盖service方法（分辨客户请求类型）

构造方法：

HttpServlet()-----doesNothing,because this is an abstract class

方法：

 1 /**
 2 权限和返回类型：protected void
 3 */
 4 //处理delete请求
 5 doDelete(HttpServletRequest req,HttpServletResponse resp)
 6 //
 7 doGet(HttpServletRequest req, HttpServletResponse resp)
 8 //
 9 doHead(HttpServletRequest req, HttpServletResponse resp)
10 //
11 doOptions(HttpServletRequest req, HttpServletResponse resp)
12 //
13 doPost(HttpServletRequest req, HttpServletResponse resp)
14 //
15 doPut(HttpServletRequest req, HttpServletResponse resp)
16 //
17 doTrace(HttpServletRequest req, HttpServletResponse resp)
18 //
19 getLastModified(HttpServletRequest req)
20 //protected void 
21 service(HttpServletRequest req, HttpServletResponse resp)
22 //void
23 service(ServletRequest req, ServletResponse res)

 

posted @ 2017-09-21 20:31  ain'tFish  阅读(206)  评论(0)    收藏  举报