form的action路径跳转报404

Yamakazezeze 2019-05-19 02:30:41

帮别人改项目，遇到问题：
search.jsp中的内容:

  <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

  <%@page import="com.action.search_servlet"%>

  <%

  String path = request.getContextPath();

  String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

  %>

  

  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

  <html>

   <head>

     <title>查询</title>

   </head>

   



<body>

<table>

<form action="/search_servlet"> 

<input type="text" value="" name="name">

<input type="submit" name="Submit">

</form>

</table>

</body>

search_servlet.java中内容



package com.action;

 

import java.io.IOException;

import java.sql.ResultSet;

import java.sql.Statement;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;



import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;



@WebServlet(name = "search_servlet", urlPatterns={"/com.action/search_servlet"})

public class search_servlet extends HttpServlet{

	public static Statement st;

	protected void service(HttpServletRequest request, HttpServletResponse response) //

			throws ServletException, IOException {

		List<Map> list =new ArrayList<Map>();//创建list集合用于存入map的键值对集合

		

		String name = request.getParameter("name");//接收到前台传来的数据

		System.out.println(name);

	

		

		try {

			String sql ="SELECT t_yuangong.`name`,t_gongzi.`yuefen`,t_gongzi.`jine`,t_chuqin.tianshu\r\n"+

					"FROM t_yuangong\r\n"+

					"JOIN t_gongzi ON t_gongzi.yuangong_id=t_yuangong.id\r\n"+

					"JOIN t_chuqin ON t_chuqin.yuangong_id=t_gongzi.yuangong_id\r\n"+

					"WHERE t_yuangong.name="+name;

			//复制之前的sql代码    每行必须要转换为字符串然后加上换行符

			//						idcard_w是用户传入的数据用于查询用户需要的信息

			

			ResultSet rs = st.executeQuery(sql);

			//从数据库读取的内容，返回一个结果集。

			System.out.println("获取数据");

			while (rs.next()) {

				String name1 = rs.getString("name");

				String yuefen = rs.getString("yuefen");

				String jine = rs.getString("jine");

				String tianshu = rs.getString("tianshu");

				//获取用循环接收数据库的表格信息

				

				Map map = new HashMap(); 

				map.put("name1", name1);			

				map.put("yuefen", yuefen);		

				map.put("jine", jine);

				map.put("tianshu", tianshu);

				//用键值对存入到map集合中

				System.out.println(map);

				list.add(map);//在将map集合对象存入list集合

				System.out.println("放入集合");

				for (Map map_1 :list) {

					System.out.println(map_1);

				}//在打印台遍历出数据查看是否有错误

				

			}//遍历结果集

		} catch (Exception e) {

			e.printStackTrace();

		}

	

 

		System.out.println("跳转");

		request.setAttribute("key_list",list);//将list集合数据放入到request中共享

		request.getRequestDispatcher("admin/search.jsp").forward(request, response);

		//跳转到index.jsp页面

	}

}