1、目录结构
2、各文件内容
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>$Title$
web.xml
Servlet web.servlet.Servlet Servlet /Servlet
Servlet.java
package web.servlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(name = "Servlet")
public class Servlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("doPost()...");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("doGet()...");
}
}
正常运行后运行后，Server控制台会出现输出“doPost()...”字符
3、当未配置web.xml时，出现的错误提示
解决方法：在web.xml中配置相关信息，或在Servlet.java注解中添加内容：
@WebServlet(name = "Servlet",urlPatterns = "/Servlet")
4、配置web.xml文件但未覆写doGet()和doPost()方法，或未覆写相对应的方法出现的错误提示
package web.servlet;
@WebServlet(name = "Servlet")
public class Servlet extends HttpServlet {
}
package web.servlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(name = "Servlet")
public class Servlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("doGet()...");
}
}
以上这篇基于创建Web项目运行时出错的解决方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持考高分网。
