基础知识请自行百度查看,以下直接贴出实现代码:

<%@ page pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<title>ECharts</title>
<% String year = request.getParameter("riskYear");
String actionType = request.getParameter("actionType");
%>
</head>
<body>
<div id="main" style="height:153px;"></div>
<!-- ECharts单文件引入 -->
<script src="/ri/common/echarts/dist/echarts-all.js"></script>
<script src="/ri/common/echarts/dist/echarts.js"></script>
<script src="/ri/common/echarts/dist/jquery-1[1].2.6.pack.js" type="text/javascript"></script>
<script type="text/javascript">
var mainDiv = document.getElementById('main');
var option = {
grid : {
x: 30,
y: 30,
x2: 0,
y2: 10
},
tooltip : {
trigger: 'axis',
axisPointer : { // 坐标轴指示器,坐标轴触发有效
type : 'shadow' // 默认为直线,可选为:'line' | 'shadow'
}
},
legend: {
data:[]
},
toolbox: {
show : false,
orient: 'vertical',
x: 'right',
y: 'center',
feature : {
mark : {show: true},
dataView : {show: true, readOnly: false},
magicType : {show: true, type: ['line', 'bar', 'stack', 'tiled']},
restore : {show: true},
saveAsImage : {show: true}
}
},
calculable : true,
xAxis : [
{
type : 'category',
axisLabel : {
show:false,
interval:0
},
data : [] //'周一','周二','周三','周四','周五','周六','周日'
}
],
yAxis : [
{
type : 'value'
}
],
series : []
};
//采用ajax异步请求数据
$.ajax({
type:'post',
url:'<%=request.getContextPath() %>/EchartsServlet?year=<%= year%>&actionType=<%= actionType%>',
dataType:'json',
success:function(result){
if(result.length>0){
//将返回的category和series对象赋值给options对象内的category和series
option.xAxis[0].data = result[0].category;
option.legend.data = result[0].legend;
option.color = result[0].legendColorList;
var series_arr=result[0].series;
for(var i=0;i<series_arr.length;i++){
option.series[i] = series_arr[i];
option.series[i].stack = 'risk';
}
if(result[0].category.length<7){
mainDiv.style.width = 680 ;
}else{
mainDiv.style.width = result[0].category.length*100;
}
var myChart = echarts.init(mainDiv);
myChart.setOption(option);
// 路径配置
require.config({
paths: {
echarts: '/ri/common/echarts/dist'
}
});
// 使用
require(
[
'echarts',
'echarts/chart/bar' // 使用柱状图就加载bar模块,按需加载
],
function (ec) {
var ecConfig = require('echarts/config');
function eConsole(param) {
if (typeof param.seriesIndex != 'undefined') {
var url = '/ri/NRCSAManagerController.do?action=getRiskScoreList'
+'&actionType=<%= actionType%>&year=<%= year%>'
+'&orgID='+result[0].orgId[param.dataIndex]
+'&clickIndex'+(param.seriesIndex+1);
window.open(url,'','width=800,height=480,resizable=yes');
}
}
myChart.on(ecConfig.EVENT.CLICK, eConsole);
myChart.on(ecConfig.EVENT.DBLCLICK, eConsole);
}
)
}
},
error:function(errMsg){
alert("不好意思,图表请求数据失败啦!");
}
});
</script>
</body>
</html>

后台代码实现如下:

package com.riskintegrator.servlet.report;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List; import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession; import net.sf.json.JSONArray;
import net.sf.json.JSONObject; import com.riskintegrator.ejb.user.UserData;
import com.riskintegrator.slsb.lem.LEMBD;
import com.riskintegrator.slsb.report.EchartForm;
import com.riskintegrator.slsb.report.EchartRiskBD;
import com.riskintegrator.slsb.report.SeriesForm; import edu.emory.mathcs.backport.java.util.Collections; public class EchartsServlet extends HttpServlet {
private static final long serialVersionUID = -6497480146173707253L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
} protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String jsonString = "";
try {
HttpSession session = request.getSession(true);
UserData udt = (UserData)session.getAttribute("user");
String orgID = udt.getorgID();
String year = request.getParameter("year");
String actionType = request.getParameter("actionType"); LEMBD LBD = new LEMBD();
String companyOrgId = LBD.getCompanyId(orgID); EchartRiskBD BD = new EchartRiskBD();
List<EchartForm> riskOrgList = BD.getAllRiskMessageByCondition(year,companyOrgId);
if(riskOrgList.size() == 0){
JSONArray json = new JSONArray();
jsonString = json.toString();
}else if("riskAssess".equalsIgnoreCase(actionType)){
jsonString = doriskAssess(riskOrgList);
}else if("riskKPI".equalsIgnoreCase(actionType)){
jsonString = doriskKPI(riskOrgList);
}else if("Assessment".equalsIgnoreCase(actionType)){
jsonString = doAssessment(riskOrgList);
}else if("riskControl".equalsIgnoreCase(actionType)){
jsonString = doriskControl(riskOrgList);
} } catch (Exception e) { }
response.setContentType("text/html;charset=utf-8");
PrintWriter out=response.getWriter();
out.println(jsonString);
out.flush();
out.close();
} public String doriskAssess(List<EchartForm> riskOrgList) throws Exception{
//{"低","中","较高","高"}
List<String> legendList = new ArrayList<String>();
//设置legend颜色
List<String> legendColorList = new ArrayList<String>();
//category--orgName
List<String> categoryList = new ArrayList<String>();
//orgid
List<String> orgIdList = new ArrayList<String>();
//series
List<SeriesForm> seriesList = new ArrayList<SeriesForm>(); //设置legend数组
legendList.add("低"); //这里的名称必须和series的每一组series的name保持一致
legendList.add("中");
legendList.add("较高");
legendList.add("高");
//设置颜色
legendColorList.add("#0C0");
legendColorList.add("#FFC");
legendColorList.add("#FC3");
legendColorList.add("#F00"); SeriesForm series1 = new SeriesForm();
series1.setId(1);
series1.setName("低");
series1.setType("bar");
List<Integer> seriesData1 = new ArrayList<Integer>(); SeriesForm series2 = new SeriesForm();
series2.setId(2);
series2.setName("中");
series2.setType("bar");
List<Integer> seriesData2 = new ArrayList<Integer>(); SeriesForm series3 = new SeriesForm();
series3.setId(3);
series3.setName("较高");
series3.setType("bar");
List<Integer> seriesData3 = new ArrayList<Integer>(); SeriesForm series4 = new SeriesForm();
series4.setId(4);
series4.setName("高");
series4.setType("bar");
List<Integer> seriesData4 = new ArrayList<Integer>(); EchartsComparator comparator=new EchartsComparator("riskAssess");
Collections.sort(riskOrgList, comparator);
for(EchartForm form : riskOrgList){
orgIdList.add(form.getOrgid());//机构ID
//加入category
categoryList.add(form.getOrgName());//机构名称
//加入数据值series序列数组 这里提供为了效果只提供一组series数据好了
seriesData1.add(Integer.parseInt(form.getSCORE_LEVEL1()));//风险评估--低
seriesData2.add(Integer.parseInt(form.getSCORE_LEVEL2()));//风险评估--中
seriesData3.add(Integer.parseInt(form.getSCORE_LEVEL3()));//风险评估--较高
seriesData4.add(Integer.parseInt(form.getSCORE_LEVEL4()));//风险评估--高
}
series1.setData(seriesData1);
series2.setData(seriesData2);
series3.setData(seriesData3);
series4.setData(seriesData4); seriesList.add(series1);
seriesList.add(series2);
seriesList.add(series3);
seriesList.add(series4); JSONArray json = new JSONArray();
JSONObject jo = new JSONObject();
jo.put("legend", legendList);
jo.put("legendColorList", legendColorList);
jo.put("orgId", orgIdList);
jo.put("category", categoryList);
jo.put("series", seriesList);
json.add(jo); return json.toString();
}
public String doriskKPI(List<EchartForm> riskOrgList) throws Exception{ //{"低","中","较高","高"}
List<String> legendList = new ArrayList<String>();
//设置legend颜色
List<String> legendColorList = new ArrayList<String>();
//category--orgName
List<String> categoryList = new ArrayList<String>();
//orgid
List<String> orgIdList = new ArrayList<String>();
//series
List<SeriesForm> seriesList = new ArrayList<SeriesForm>(); //设置legend数组
legendList.add("低"); //这里的名称必须和series的每一组series的name保持一致
legendList.add("中");
legendList.add("较高");
legendList.add("高");
//设置颜色
legendColorList.add("#0C0");
legendColorList.add("#FFC");
legendColorList.add("#FC3");
legendColorList.add("#F00"); SeriesForm series1 = new SeriesForm();
series1.setId(1);
series1.setName("低");
series1.setType("bar");
List<Integer> seriesData1 = new ArrayList<Integer>(); SeriesForm series2 = new SeriesForm();
series2.setId(2);
series2.setName("中");
series2.setType("bar");
List<Integer> seriesData2 = new ArrayList<Integer>(); SeriesForm series3 = new SeriesForm();
series3.setId(3);
series3.setName("较高");
series3.setType("bar");
List<Integer> seriesData3 = new ArrayList<Integer>(); SeriesForm series4 = new SeriesForm();
series4.setId(4);
series4.setName("高");
series4.setType("bar");
List<Integer> seriesData4 = new ArrayList<Integer>(); EchartsComparator comparator=new EchartsComparator("riskKPI");
Collections.sort(riskOrgList, comparator);
for(EchartForm form : riskOrgList){
orgIdList.add(form.getOrgid());//机构ID
//加入category
categoryList.add(form.getOrgName());//机构名称
//加入数据值series序列数组 这里提供为了效果只提供一组series数据好了
seriesData1.add(Integer.parseInt(form.getKRI_LEVEL1()));//风险指标--低
seriesData2.add(Integer.parseInt(form.getKRI_LEVEL2()));//风险指标--中
seriesData3.add(Integer.parseInt(form.getKRI_LEVEL3()));//风险指标--较高
seriesData4.add(Integer.parseInt(form.getKRI_LEVEL4()));//风险指标--高
}
series1.setData(seriesData1);
series2.setData(seriesData2);
series3.setData(seriesData3);
series4.setData(seriesData4); seriesList.add(series1);
seriesList.add(series2);
seriesList.add(series3);
seriesList.add(series4); JSONArray json = new JSONArray();
JSONObject jo = new JSONObject();
jo.put("legend", legendList);
jo.put("orgId", orgIdList);
jo.put("legendColorList", legendColorList);
jo.put("category", categoryList);
jo.put("series", seriesList);
json.add(jo); return json.toString();
}
public String doAssessment(List<EchartForm> riskOrgList) throws Exception{ //{"问题缺陷"}
List<String> legendList = new ArrayList<String>();
//设置legend颜色
List<String> legendColorList = new ArrayList<String>();
//category--orgName
List<String> categoryList = new ArrayList<String>();
//orgid
List<String> orgIdList = new ArrayList<String>();
//series
List<SeriesForm> seriesList = new ArrayList<SeriesForm>(); //设置legend数组
legendList.add("问题缺陷"); //这里的名称必须和series的每一组series的name保持一致
//设置颜色
legendColorList.add("#F63"); SeriesForm series1 = new SeriesForm();
series1.setId(1);
series1.setName("问题缺陷");
series1.setType("bar");
List<Integer> seriesData1 = new ArrayList<Integer>(); EchartsComparator comparator=new EchartsComparator("Assessment");
Collections.sort(riskOrgList, comparator);
for(EchartForm form : riskOrgList){
orgIdList.add(form.getOrgid());//机构ID
//加入category
categoryList.add(form.getOrgName());//机构名称
//加入数据值series序列数组 这里提供为了效果只提供一组series数据好了
seriesData1.add(Integer.parseInt(form.getISS_LEVEL1()));//检查评价--问题缺陷
}
series1.setData(seriesData1); seriesList.add(series1); JSONArray json = new JSONArray();
JSONObject jo = new JSONObject();
jo.put("legend", legendList);
jo.put("orgId", orgIdList);
jo.put("legendColorList", legendColorList);
jo.put("category", categoryList);
jo.put("series", seriesList);
json.add(jo); return json.toString();
}
public String doriskControl(List<EchartForm> riskOrgList) throws Exception{ //{"有效","失效"}
List<String> legendList = new ArrayList<String>();
//设置legend颜色
List<String> legendColorList = new ArrayList<String>();
//category--orgName
List<String> categoryList = new ArrayList<String>();
//orgid
List<String> orgIdList = new ArrayList<String>();
//series
List<SeriesForm> seriesList = new ArrayList<SeriesForm>(); //设置legend数组
legendList.add("有效"); //这里的名称必须和series的每一组series的name保持一致
legendList.add("失效");
//设置颜色
legendColorList.add("#0C0");
legendColorList.add("#F63"); SeriesForm series1 = new SeriesForm();
series1.setId(1);
series1.setName("有效");
series1.setType("bar");
List<Integer> seriesData1 = new ArrayList<Integer>(); SeriesForm series2 = new SeriesForm();
series2.setId(2);
series2.setName("失效");
series2.setType("bar");
List<Integer> seriesData2 = new ArrayList<Integer>(); EchartsComparator comparator=new EchartsComparator("riskControl");
Collections.sort(riskOrgList, comparator);
for(EchartForm form : riskOrgList){
orgIdList.add(form.getOrgid());//机构ID
//加入category
categoryList.add(form.getOrgName());//机构名称
//加入数据值series序列数组 这里提供为了效果只提供一组series数据好了
seriesData1.add(Integer.parseInt(form.getCM_LEVEL1()));//控制监测--有效
seriesData2.add(Integer.parseInt(form.getCM_LEVE2()));//控制监测--失效
}
series1.setData(seriesData1);
series2.setData(seriesData2); seriesList.add(series1);
seriesList.add(series2); JSONArray json = new JSONArray();
JSONObject jo = new JSONObject();
jo.put("legend", legendList);
jo.put("orgId", orgIdList);
jo.put("legendColorList", legendColorList);
jo.put("category", categoryList);
jo.put("series", seriesList);
json.add(jo); return json.toString();
} }

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