HTTP method GET is not supported by this URL 中servlet 的405错误

问题分析:

1,继承自HttpServlet的Servlet没有重写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;

不管是1或2,父类HttpServlet的doGet或doPost等方法的默认实现是返回状态代码为405的HTTP错误表示对于指定资源的请求方法不被允许。

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);

public class TestServlet extends HttpServlet {

/**    
 * serialVersionUID:TODO(用一句话描述这个变量表示什么)    
 *    
 * @since Ver 1.1    
 */    

private static final long serialVersionUID = 1L;

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {
       PrintWriter out=resp.getWriter();
       out.println("Hello,Fucilu");
}
原文地址:https://www.cnblogs.com/huifeidezhuzai/p/9524532.html