500错误
qq_是狼何必装羊__0
2016-07-10 13:43
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<body>
<h1>
第一个Servlet小例子
</h1>
<a href="servlet/HelloServlet">Get方式请求HelloServlet</a>
</body>
</html>
package servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HelloServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
System.out.println("处理get()方法。。。");
PrintWriter out =response.getWriter();
out.println("<strong>Hello Servlet!</strong><br>");
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
System.out.println("处理post()方法。。。");
PrintWriter out =response.getWriter();
response.setContentType("text/html; charset=UTF-8");
out.println("<strong>Hello Servlet!</strong><br>"); }
}
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>MyFirstServlet</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>servlet.HelloServtet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/servlet/HelloServlet</url-pattern>
</servlet-mapping>
</web-app>
求解决
2回答
-
- qq__18
- 2016-07-10 17:23:26
<servlet-class>servlet.HelloServtet</servlet-class>
web.xml 配置文件里类名写错了。
-
- 连宏伟HW
- 2016-07-14 18:41:17
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>servlet.HelloServtet</servlet-class> 这里错了看清楚类名
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/servlet/HelloServlet</url-pattern> 这里错了
</servlet-mapping>
JAVA遇见HTML——Servlet篇
160614 学习 · 1029 问题
相似问题