鍍金池/ 問答/Java/ HTTP method POST is not supported by thi

HTTP method POST is not supported by this URL

servlet的代碼：

package com.example.web;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class BeerSelect extends HttpServlet{
    public void doPost(HttpServletResponse response,
            HttpServletRequest request)
            throws IOException, ServletException{
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("Beer Selection Advice<br>");
        String c = request.getParameter("color");
        out.println("<br>Got beer color " + c);
    }
}

xml的：

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    version="2.4">

<servlet>
    <servlet-name>Ch3 Beer</servlet-name>
    <servlet-class>com.example.web.BeerSelect</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>Ch3 Beer</servlet-name>
    <url-pattern>/SelectBeer.do</url-pattern>
</servlet-mapping>
</web-app>

html的：

<html><body>
<h1 align = "center">Beer Selection Page</h1>
<form method = "POST" action = "SelectBeer.do">
    Select beer characteristics<p>
    Color:
    <select name = "color" size = "1">
        <option value = "light">light</option>
        <option value = "amber">amber</option>
        <option value = "brown">brown</option>
        <option value = "dark">dark</option>
    </select>
    <br><br>
    <center>
        <input type = "SUBMIT">
    </center>
</form></body></html>
回答
編輯回答
凹凸曼

https://stackoverflow.com/que...
看一下這個解答有沒有幫助

2017年10月13日 17:00