小编aks*_*har的帖子

我正在使用 Tomcat8 服务器，但出现以下错误。

它的网址是http://localhost:8080/WeatherWebApp当我提交详细信息时，它会出现此错误。这是 WeatherServlet.java 类

package org.akshayrahar;
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 WeatherServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    WeatherServlet(){

    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("again");
        response.setContentType("text/html");
        PrintWriter out=response.getWriter();
        out.println("akshay rahar");
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    }

}

这是 web.xml 文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>
<web-app version="2.4" 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">
  <display-name>WeatherWebApp</display-name> …