北京市雨量监测信息管理(使用ajax实现)

代码如下:

 

pojo包(实体类):

pojo

package pojo;

public class RainManage {


    public RainManage() {
        super();
    }

    public RainManage(int count, int id, String districtName, String monitorTime, int rain, String monitoringStation, String monitoringAddress) {
        this.count = count;

    }

    private int count;
    private int id;

    private String districtName;

    private String monitorTime;

    private int rain;

    private String monitoringStation;

    private String monitoringAddress;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getDistrictName() {
        return districtName;
    }

    public void setDistrictName(String districtName) {
        this.districtName = districtName;
    }

    public String getMonitorTime() {
        return monitorTime;
    }

    public void setMonitorTime(String monitorTime) {
        this.monitorTime = monitorTime;
    }

    public int getRain() {
        return rain;
    }

    public void setRain(int rain) {
        this.rain = rain;
    }

    public String getMonitoringStation() {
        return monitoringStation;
    }

    public void setMonitoringStation(String monitoringStation) {
        this.monitoringStation = monitoringStation;
    }

    public String getMonitoringAddress() {
        return monitoringAddress;
    }

    public void setMonitoringAddress(String monitoringAddress) {
        this.monitoringAddress = monitoringAddress;
    }

    public int getCount() {
        return count;
    }

    public void setCount(int count) {
        this.count = count;
    }

    @Override
    public String toString() {
        return "RainManage{" +
                "count=" + count +
                ", id=" + id +
                ", districtName='" + districtName + '\'' +
                ", monitorTime='" + monitorTime + '\'' +
                ", rain=" + rain +
                ", monitoringStation='" + monitoringStation + '\'' +
                ", monitoringAddress='" + monitoringAddress + '\'' +
                '}';
    }
}

servlet(响应层): 三个 addServlet 、Servlet 、delectServlet

addServlet：

addServlet

package com.web.servlet;

import com.google.gson.Gson;
import dao.Test;
import pojo.Demo;
import pojo.RainManage;
import service.RainManageService;
import service.RainManageServiceImpl;

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("/add")
public class addServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("是否发送请求....dsgreystyg");
        resp.setContentType("text/html;charset=UTF-8");
        RainManageService rainManageService = new RainManageServiceImpl();
        RainManage rainManage = new RainManage();
        String name = req.getParameter("name");
        String date = req.getParameter("date");
        String rainfall1 = req.getParameter("rainfall");
        Integer rainfall = new Integer(rainfall1);
        String jc = req.getParameter("jc");
        String address = req.getParameter("address");
        rainManage.setDistrictName(name);
        rainManage.setMonitorTime(date);
        rainManage.setRain(rainfall);
        rainManage.setMonitoringStation(jc);
        rainManage.setMonitoringAddress(address);

        Gson gson = new Gson();
        int count = rainManageService.add(rainManage);
        rainManage.setCount(count);
        System.out.println(gson.toJson(rainManage));
        resp.getWriter().println(gson.toJson(rainManage));
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doGet(req,resp);
    }
}

Servlet :

Servlet

package com.web.servlet;

import com.google.gson.Gson;

import pojo.Demo;
import pojo.RainManage;
import service.RainManageService;
import service.RainManageServiceImpl;

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;
import java.util.ArrayList;
import java.util.List;

@WebServlet("/Servlet")
public class Servlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("是否进入请求。。。");
        resp.setContentType("text/html;charset=UTF-8");
        Gson gson = new Gson();
        RainManage rainManage = new RainManage();
        RainManageService rainManageService = new RainManageServiceImpl();
        List list = new ArrayList();
        list = rainManageService.getList();
        System.out.println(gson.toJson(list));
        resp.getWriter().println(gson.toJson(list));


    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       this.doGet(req,resp);
    }
}

delectServlet:

delectServlet

package com.web.servlet;

import service.RainManageService;
import service.RainManageServiceImpl;

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("/delect")
public class delectServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("text/html;charset=UTF-8");

        RainManageService rainManageService = new RainManageServiceImpl();

        String data = req.getParameter("data");
        Integer integer = new Integer(data);
        int delect = rainManageService.delect(integer);

        System.out.println(delect);

    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       this.doGet(req,resp);
    }
}

Dao层: BaseDao层JDBC等省略

RainManageDao:

RainMangeDao

RainManageDaoImpl:

RainMangeDaoImpl

package dao;

import pojo.RainManage;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public class RainManageDaoImpl extends BaseDao implements RainManageDao{
    /**
     * 1、编写查询方法，查询所有雨量监测信息，查询结果按照监测时间倒序排列
     *
     */
    public List getList() throws SQLException {
        List rainManageList = new ArrayList();
        RainManage rainManage = null;
        String sql = "SELECT * FROM rain";
        Object [] objs = {};
        ResultSet rs = this.executeSQL(sql, objs);
        while(rs.next()){
            rainManage = new RainManage();
            rainManage.setId(rs.getInt("id"));
            rainManage.setDistrictName(rs.getString("districtName"));
            rainManage.setMonitoringAddress(rs.getString("monitoringAddress"));
        rainManage.setMonitoringStation(rs.getString("monitoringStation"));
        rainManage.setMonitorTime(rs.getString("monitorTime"));
        rainManage.setRain(rs.getInt("rain"));
        rainManageList.add(rainManage);

        }
        this.closeResource();
        return rainManageList;
    }
    /**
     * 2、编写添加方法，新增雨量监测信息
     *
     */
    public int add(RainManage rainManage) {
        int count = 0;
        String sql = "INSERT INTO rain(id,districtName,monitorTime,rain,monitoringStation,monitoringAddress) VALUES(?,?,?,?,?,?);";
        Object[] objs = {rainManage.getId(),
                rainManage.getDistrictName(),
                rainManage.getMonitorTime(),
                rainManage.getRain(),
                rainManage.getMonitoringStation(),rainManage.getMonitoringAddress()};
        count += this.executeUpdate(sql, objs);

        this.closeResource();
        return count;

    }

    /**
     *   * 3、编写删除方法，删除指定的雨量监测信息
     */
    public int delect(int id) {
        int result = 0;
        String sql = "DELETE FROM rain WHERE id=?";
        Object [] objs = {id};
        result = this.executeUpdate(sql, objs);
        this.closeResource();
        return result;
    }

    public static void main(String[] args) {
        RainManageDao rainManageDao = new RainManageDaoImpl();

    }
}

Service层:

RainManageService:

RainManageService

package service;

import pojo.RainManage;

import java.util.List;

public interface RainManageService {
    /**
     * 1、编写查询方法，查询所有雨量监测信息，查询结果按照监测时间倒序排列
     *
     */
    List getList();

    /**
     * 2、编写添加方法，新增雨量监测信息
     *
     */
    int add(RainManage rainManage);

    /**
     *   * 3、编写删除方法，删除指定的雨量监测信息
     */
    int delect(int id);
}

 

RainManageServiceImpl:

RainMangeServiceImpl

package service;

import dao.RainManageDao;
import dao.RainManageDaoImpl;
import pojo.RainManage;

import java.sql.SQLException;
import java.util.List;

public class RainManageServiceImpl implements RainManageService{
    private static final RainManageDao rainManageDao = new RainManageDaoImpl();
    public List getList() {
        List list = null;
        try {
            list = rainManageDao.getList();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return list;
    }

    public int add(RainManage rainManage) {
        int count = rainManageDao.add(rainManage);

        return count;
    }

    public int delect(int id) {
        int result = 0;
        result = rainManageDao.delect(id);
        return result;
    }

//    public static void main(String[] args) {
//        RainManageService rainManageService = new RainManageServiceImpl();
//
//        int delect = rainManageService.delect(10);
//        System.out.println(delect>0?"删除成功!":"删除失败");
//    }
}

 

Web方面: 两个 index.jsp、add.jsp

index.jsp:

index.jsp

<%@ page import="dao.BaseDao" %><%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2019/10/18
  Time: 17:16
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    
    

    






添加
<%--
--%>

 

add.jsp:

add.jsp

<%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2019/10/19
  Time: 9:04
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    

    
        

        
    



    

        

            
新增雨量监测信息
        

        


            区域名称:     * 



            监测时间:     * 



            雨量(mm):     * 



            监测站:        * 



            站点地址:     *



            按钮
        
    

 

MYSQL:

 

 

 

实现效果: