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echart实现中国地图，并且实现省市级下钻(代码片段)

yizhixiaozhu yizhixiaozhu     2023-04-12     828

关键词：

本项目需要用到的时echarts，接下来展示文件目录

技术图片

 

 技术图片

 

 接下来展示各个文件的内容

base文件内容：

package three;

public class base 
    String value;
    String name;
    public String getValue() 
        return value;
    
    public void setValue(String value) 
        this.value = value;
    
    public String getName() 
        return name;
    
    public void setName(String name) 
        this.name = name;

base1文件内容

package three;

public class base1 
    String name;
    String value;
    public String getName() 
        return name;
    
    public void setName(String name) 
        this.name = name;
    
    public String getValue() 
        return value;
    
    public void setValue(String value) 
        this.value = value;

base3date文件内容：

package three;

public class base3date 
    public static String date;

Get文件内容：

package three;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

import db.DBUtil;



public class Get 
    public static List<base> find(String table,String id)
    
        List<base> list=new ArrayList<base>();
        boolean c;
        String str[]="辽宁省","吉林省","黑龙江省","河北省","山西省","陕西省","山东省","安徽省","江苏省","浙江省","河南省","湖北省","湖南省","江西省","台湾","福建省","云南省","海南省","四川省","贵州省","广东省","甘肃省","青海省","西藏自治区","新疆维吾尔自治区","广西壮族自治区","内蒙古自治区","宁夏回族自治区 ","北京市","天津市","上海市","重庆市","香港","澳门" ;
        String str0[]="辽宁","吉林","黑龙江","河北","山西","陕西","山东","安徽","江苏","浙江","河南","湖北","湖南","江西","台湾","福建","云南","海南","四川","贵州","广东","甘肃","青海","西藏","新疆","广西","内蒙古","宁夏 ","北京","天津","上海","重庆","香港","澳门" ;
        int num[]=new int[34];
        for(int i=0;i<34;i++)
        
            num[i]=0;
        
        Connection conn=DBUtil.getConn();
        Statement state=null;
        try
        
            state=conn.createStatement();
            String sql="select * from "+table+" where Date =‘"+id+"‘";
            ResultSet rs=state.executeQuery(sql);
            while(rs.next())
            
                
                if(!(rs.getString(3).equals("")||rs.getString(3)==null)&&(rs.getString(4).equals("")||rs.getString(4)==null))
                
                    
                    for(int i=0;i<34;i++)
                    
                        if(str[i].equals(rs.getString(3)))
                        
                            int s=Integer.parseInt(rs.getString(5));
                            num[i]+=s;
                        
                    
                
            
            rs.close();
            state.close();
            conn.close();
            
            for(int i=0;i<34;i++)
            
                
                base b=new base();
                b.setName(str0[i]);
                b.setValue(num[i]+"");
                list.add(b);
            
            
            
            System.out.println("over");
        
        
        catch(Exception e)
        
            
        
        return list;
    
    public static List<base1> find(String table,String id,String shengfen)
    
        List<base1> list=new ArrayList<base1>();
        boolean c;
        String str[]="辽宁省","吉林省","黑龙江省","河北省","山西省","陕西省","山东省","安徽省","江苏省","浙江省","河南省","湖北省","湖南省","江西省","台湾","福建省","云南省","海南省","四川省","贵州省","广东省","甘肃省","青海省","西藏自治区","新疆维吾尔自治区","广西壮族自治区","内蒙古自治区","宁夏回族自治区 ","北京市","天津市","上海市","重庆市","香港","澳门" ;
        Connection conn=DBUtil.getConn();
        Statement state=null;
        try
        
            state=conn.createStatement();
            String sql="select * from "+table+" where Date =‘"+id+"‘ and Province = ‘"+shengfen+"‘";
            ResultSet rs=state.executeQuery(sql);
            System.out.println("城市");
            while(rs.next())
            
                if(!(rs.getString(3).equals("")||rs.getString(3)==null)&&!(rs.getString(4).equals("")||rs.getString(4)==null))
                    System.out.println(rs.getString(4));
                    System.out.println(rs.getString(5));
                    base1 b=new base1();
                    b.setName(rs.getString(4));
                    b.setValue(rs.getString(5));
                    list.add(b);
                
            
            rs.close();
            state.close();
            conn.close();
            
            
            
            
            System.out.println("over");
        
        
        catch(Exception e)
        
            
        
        return list;

Province文件内容：

package three;

import java.io.IOException;
import java.util.List;

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 net.sf.json.JSONArray;
import two.base2date;

/**
 * Servlet implementation class Province
 */
@WebServlet("/Province")
public class Province extends HttpServlet 
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public Province() 
        super();
        // TODO Auto-generated constructor stub
    
    
    
    protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException
    
        arg1.setContentType("text/html;charset=utf-8");
        arg0.setCharacterEncoding("utf-8");
        arg1.setCharacterEncoding("utf-8");
        
        
        String str[]="辽宁省","吉林省","黑龙江省","河北省","山西省","陕西省","山东省","安徽省","江苏省","浙江省","河南省","湖北省","湖南省","江西省","台湾","福建省","云南省","海南省","四川省","贵州省","广东省","甘肃省","青海省","西藏自治区","新疆维吾尔自治区","广西壮族自治区","内蒙古自治区","宁夏回族自治区 ","北京市","天津市","上海市","重庆市","香港","澳门" ;
        String str0[]="辽宁","吉林","黑龙江","河北","山西","陕西","山东","安徽","江苏","浙江","河南","湖北","湖南","江西","台湾","福建","云南","海南","四川","贵州","广东","甘肃","青海","西藏","新疆","广西","内蒙古","宁夏 ","北京","天津","上海","重庆","香港","澳门" ;
        
        System.out.println("!!!!!!!");
        String shengfen=arg0.getParameter("shengfen");
        String date=base3date.date;
        String shengfen0=arg0.getParameter("shengfen0");
        System.out.println(shengfen);
        System.out.println(shengfen0);
        
        for(int i=0;i<34;i++)
        
            if(shengfen.equals(str0[i]))
            
                shengfen=str[i];
                break;
            
        
        
        List<base1> list = Get.find("info", date, shengfen);
        arg0.setAttribute("mapDataJson", JSONArray.fromObject(list));
        arg0.setAttribute("province", shengfen0);
     
        arg0.getRequestDispatcher("Three/NewFile1.jsp").forward(arg0, arg1);
        

    
    

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
        // TODO Auto-generated method stub
        response.getWriter().append("Served at: ").append(request.getContextPath());
    

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

Three文件内容：

package three;

import java.io.IOException;
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 com.google.gson.Gson;

import two.Get;
import two.TwoBean;
import two.base2date;

/**
 * Servlet implementation class Three
 */
@WebServlet("/Three")
public class Three extends HttpServlet 
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public Three() 
        super();
        // TODO Auto-generated constructor stub
    
    protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException 
        arg0.setCharacterEncoding("utf-8");
        arg1.setCharacterEncoding("utf-8");
        String str[]="辽宁省","吉林省","黑龙江省","河北省","山西省","陕西省","山东省","安徽省","江苏省","浙江省","河南省","湖北省","湖南省","江西省","台湾","福建省","云南省","海南省","四川省","贵州省","广东省","甘肃省","青海省","西藏自治区","新疆维吾尔自治区","广西壮族自治区","内蒙古自治区","宁夏回族自治区 ","北京市","天津市","上海市","重庆市","香港","澳门" ;
        String str0[]="辽宁","吉林","黑龙江","河北","山西","陕西","山东","安徽","江苏","浙江","河南","湖北","湖南","江西","台湾","福建","云南","海南","四川","贵州","广东","甘肃","青海","西藏","新疆","广西","内蒙古","宁夏 ","北京","天津","上海","重庆","香港","澳门" ;
        String shengfen = arg0.getParameter("shengfen");
        System.out.println("生风："+shengfen);
        TwoBean tb=new TwoBean();
        Get g=new Get();
        for(int i=0;i<32;i++)
        
            if(shengfen.equals(str0[i]))
            
                tb=g.find1("info", base2date.date, str[i]);
            
        
        System.out.println(tb.getQuezhen());

        
        Gson gson = new Gson();
        String json = gson.toJson(tb);
        
        try 
            arg1.getWriter().println(json);

         catch (Exception e) 
            e.printStackTrace();
         finally 
            arg1.getWriter().close(); 
        
        
        /*
         * map = new HashMap<String, Object>(); map.put("name","河北");
         * map.put("value",2400); list.add(map);
         */

    

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
        // TODO Auto-generated method stub
        response.getWriter().append("Served at: ").append(request.getContextPath());
    

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

ThreeServlet文件内容：

package three;

import java.io.IOException;
import java.util.List;

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 net.sf.json.JSONArray;


/**
 * Servlet implementation class ThreeServlet
 */
@WebServlet("/ThreeServlet")
public class ThreeServlet extends HttpServlet 
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ThreeServlet() 
        super();
        // TODO Auto-generated constructor stub
    
    protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException
    
        arg1.setContentType("text/html;charset=utf-8");
        arg0.setCharacterEncoding("utf-8");
        arg1.setCharacterEncoding("utf-8");
        String date=arg0.getParameter("date");
        base3date.date=date;
        List list=Get.find("info", date);
        arg0.setAttribute("mapDataJson", JSONArray.fromObject(list));
        /*
         * List<TwoBean> all=Get.find1("info", date); Gson gson = new Gson(); String
         * json = gson.toJson(all); arg0.setAttribute("message", json);
         */
        
     
        arg0.getRequestDispatcher("Three/NewFile.jsp").forward(arg0, arg1);
        /*map = new HashMap<String, Object>();
        map.put("name","河北");
        map.put("value",2400);
        list.add(map);*/

    

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
        // TODO Auto-generated method stub
        response.getWriter().append("Served at: ").append(request.getContextPath());
    

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

NewFile文件内容：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
    <script src="$pageContext.request.contextPath/js/echarts.min.js"></script>
    <script src="$pageContext.request.contextPath/js/jquery-1.8.3.js"></script>
<script src="http://echarts.baidu.com/build/dist/echarts.js"></script>
<div id="mainMap" style="height:300px;width:600px;"></div>


<form action="$pageContext.request.contextPath/ThreeServlet"method="post"style="margin-top:450px">
        <p>请按照给定的样例输入<input type="text"placeholder="2020-02-08 02:28:59"name="date"style="width:300px;height:80"><span><input type="submit" value="查询"style="width:120px;height:35px;margin-left:400px;background-color:#bdd7f2"></span></p>
    </form>
    
    
    
    
    
<script type="text/javascript">
var str0=["辽宁","吉林","黑龙江","河北","山西","陕西","山东","安徽","江苏","浙江","河南","湖北","湖南","江西","台湾","福建","云南","海南","四川","贵州","广东","甘肃","青海","西藏","新疆","广西","内蒙古","宁夏 ","北京","天津","上海","重庆","香港","澳门"];
var str1=["liaoning","jilin","heilongjiang","hebei","shanxi","shanxi1","shandong","anhui","jiangsu","zhejiang","henan","hubei","hunan","jiangxi","taiwan","fujian","yunnan","hainan","sichuan","guizhou","guangdong","gansu","qinghai","xizang","xinjiang","guangxi","neimenggu","ningxia","beijing","tianjin","shanghai","chongqing","xianggang","aomen"];
    var province;
    var province0;
    var mapDataJson=‘$mapDataJson‘;
    var json=JSON.parse(mapDataJson);
    var quezhen;
    var yisi;
    var zhiyu;
    var siwang;
    // 路径配置
    require.config(
        paths: 
            echarts: ‘http://echarts.baidu.com/build/dist‘
        
    );
    // 使用
    require(
            [
                ‘echarts‘,
                ‘echarts/chart/map‘ // 使用柱状图就加载bar模块，按需加载
            ],
            function (ec) 
                // 基于准备好的dom，初始化echarts图表
                var myChart_map = ec.init(document.getElementById(‘mainMap‘));

                var itemStyle = 
                    normal:label:
                        show:true,
                        formatter:‘b‘,
                        textStyle: fontSize: 10,fontWeight : ‘bold‘
                    ,
                    emphasis:label:show:true
                ;

                var option_map = 
                    title : 
                        text: ‘‘,
                        subtext: ‘应用使用次数‘,
                        x:‘center‘
                    ,
                    tooltip : 
                        trigger: ‘item‘
                    ,
                    legend: 
                        orient: ‘vertical‘,
                        x:‘left‘,
                        data:[‘次数‘]
                    ,
                    dataRange: 
                        min: 0,
                        max: 2500,
                        x: ‘left‘,
                        y: ‘bottom‘,
                        text:[‘高‘,‘低‘],           // 文本，默认为数值文本
                        calculable : true
                    ,

                    series : [
                        
                            name: ‘总数‘,
                            type: ‘map‘,
                            mapType: ‘china‘,
                            roam: false,
//                            itemStyle:
//                                normal:label:show:true,
//                                emphasis:label:show:true
//                            ,
                            itemStyle: itemStyle,
                            data:getData()
                        

                    ]
                ;

                //option_map.series[0].data=json;  
                
              

                
                // 为echarts对象加载数据
                myChart_map.setOption(option_map);
                myChart_map.on(‘click‘, function (params) 
                    var city = params.name;
                    alert(city);
                    var now=new Date().getTime(); 
                    var params = ;
                    params["shenfen"] = city;
                    var option = myChart_map.getOption();
                    option.series[0].map = city;
                    for(var i=0;i<34;i++)
                        
                            if(str0[i]==city)
                                
                                    province0=str1[i];
                                    province=str0[i];
                                    break;
                                
                        
                    var url="Province?shengfen0="+province0+"&shengfen="+province;
                    window.location.href = url;
                    
                    
                    
                    
                    /*  $.getJSON("Message",  shengfen: city, function(json)
                          alert("确诊人数："+json.quezhen+" 疑似人数："+json.yisi+" 治愈人数："+json.zhiyu+" 死亡人数："+json.siwang);
                        );
                     */
                    
                    
                    
                    
                );
            
    );
    function getData()
        return json;
        
</script>

</body>
</html>

NewFile1文件内容：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
    <meta charset=utf-8>
    <meta name=viewport content="width=device-width,initial-scale=1">
    <title>Echarts Map</title>
    <style>
        #app
            width: 1000px;
            height: 500px;
        
    </style>
</head>

<body>
    <div id="app"></div>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/echarts/4.1.0/echarts.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.18.0/axios.min.js"></script>
    <script>
    var mapDataJson=‘$mapDataJson‘;
    var json=JSON.parse(mapDataJson);
    var province=‘<%=request.getAttribute("province")%>‘;
    
    
    
        axios.get(‘json/‘+province+‘.json‘).then((data) => 
            echarts.registerMap(province, data.data)
            let chart = echarts.init(document.getElementById(‘app‘))
            var itemStyle = 
                normal:label:
                    show:true,
                    formatter:‘b‘,
                    textStyle: fontSize: 10,fontWeight : ‘bold‘
                ,
                emphasis:label:show:true
            ;

            var option_map = 
                title : 
                    text: ‘‘,
                    subtext: ‘确诊人数‘,
                    x:‘center‘
                ,
                tooltip : 
                    trigger: ‘item‘
                ,
                legend: 
                    orient: ‘vertical‘,
                    x:‘left‘,
                    data:[‘次数‘]
                ,
                dataRange: 
                    min: 0,
                    max: 2500,
                    x: ‘left‘,
                    y: ‘bottom‘,
                    text:[‘高‘,‘低‘],           // 文本，默认为数值文本
                    calculable : true
                ,

                series : [
                    
                        name: ‘总数‘,
                        type: ‘map‘,
                        map: province,
                        roam: false,
//                        itemStyle:
//                            normal:label:show:true,
//                            emphasis:label:show:true
//                        ,
                        itemStyle: itemStyle,
                        data:getData()
                        
                    

                ]
            ;

            //option_map.series[0].data=json;  
            
          

            
            // 为echarts对象加载数据
            chart.setOption(option_map);
        );
        
        
        
        function getData()
        return json;
        
    </script>
</body>
</html>

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技术图片

 

 

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