Servlet eroor：HTTP method GET is not supported by this URL

错误提示：

type: Status report

message: HTTP method GET is not supported by this URL

description: The specified HTTP method is not allowed for the requested resource (HTTP method GET is not supported by this URL).

原因：

1，继承自HttpServlet的Servlet没有重写对于请求和响应的处理方法：doGet或doPost等方法；默认调用父类的doGet或doPost等方法；

2，父类HttpServlet的doGet或doPost等方法覆盖了你重写的doGet或doPost等方法；

解决办法:

1，子类重写doGet或doPost等方法；

2，在你扩展的Servlert中重写doGet或doPost等方法来处理请求和响应时 不要调用父类HttpServlet的doGet或doPost等方法，即去掉super.doGet(request, response)和super.doPost(request, response);