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我的 Servlets 程序

包 com.srccodes.example；

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class Helloworld
 */
@WebServlet("/Helloworld")
public class Helloworld extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public Helloworld() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        PrintWriter printWriter  = response.getWriter();
        printWriter.println("<h1>Hello World!</h1>");
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
    }

}

更新 ：

韦克.xml

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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>HelloWorldServlet</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>
</web-app>

在tomcat服务器上运行上述程序时出现错误错误-> http://i.stack.imgur.com/655Ew.png。如何解决此问题，请尝试建议我，好的答案将适用

4

3 回答 3

1

您在上面提供的代码中没有错。您的 servlet 名称是“Helloworld”，您尝试的 URL 是

http://localhost:8080/HelloworldServlet

如果你想运行相同的 servlet 试试

http://localhost:8080/HelloworldServlet/Helloworld

还重新启动服务器并检查 URL。

于 2013-11-13T07:53:13.010 回答
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从网址中删除“Servlet”，例如http://localhost:8080/Helloworld

于 2013-11-13T07:39:06.023 回答
0

这个类是 WAR 应用程序的一部分吗？尝试将 WAR 名称放在端口和 HelloWorld 之间。

于 2013-11-13T07:48:14.853 回答