出現了404
可以出來靜態頁面，跳轉的時候出現了404
<%@ page language="java" contentType="text/html; charset=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>
<h1>my first servlet demo</h1>
<hr>
<a href="servlet/HelloServlet">Get方式請求HelloServlet</a>
</body>
</html>
<?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>First</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.HelloServlet</servlet-class>
? </servlet>
? <servlet-mapping>
? <servlet-name>HelloServlet</servlet-name>
? <url-pattern>/servlet/HelloServlet</url-pattern>
? </servlet-mapping>
??
</web-app>
public class HelloServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// TODO Auto-generated method stub
System.out.println("處理Get()請求......");
PrintWriter out = response.getWriter();
response.setContentType("text/html;charset=utf-8");
out.println("<strong>Hello Servlet</strong><br>");
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
}
2016-08-14
用你的代碼，可以正常跳轉。 你重啟下tomcat試試吧