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  • Echarts与.net后端动态交互

    1.效果图

    2.使用技术

      @1.Echarts模块化引入开发。

      官方地址:http://echarts.baidu.com/echarts2/doc/doc.html#%E5%BC%95%E5%85%A5ECharts1

      博主地址:https://blog.csdn.net/danielinbiti/article/details/44560075

      @2 .net后端查询数据(oracle)到前端,前端解析

    3.前端代码

    @{
        ViewBag.Title = "tradecount";
    }
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        @Scripts.Render("~/Scripts/jquery-1.11.2-min.js")
        @Scripts.Render("~/Common/echarts/echarts.js")
        <style>
            .my_table {
                /*border-spacing: 0;
                border: solid 10px #257ad4;*/
                padding: 0;
                margin: 0;
                 94%;
                height: 100%;
                margin-top: 40px;
                margin-left: 50px;
                margin-right: 50px;
            }
        </style>
        <title>交易量</title>
    </head>
    <body>
        <div class="page-container">
            <table border="0" class="my_table">
                <colgroup style="50%"></colgroup>
                <colgroup style="50%"></colgroup>
                <tr>
                    <td style="height:50%;border:solid 10px #fff;">
                        <div id="et_pie" style="100%;height:100%;"></div>
                    </td>
                    <td style="height:50%;border:solid 10px #fff;">
                        <div id="et_pie1" style="100%;height:100%;"></div>
                    </td>
                </tr>
                <tr>
                    <td style="height:50%;padding-top:10px;border:solid 10px #fff;">
                        <div id="et_bar" style="100%;height:100%;"></div>
                    </td>
                    <td style="height:50%;padding-top:10px;border:solid 10px #fff;">
                        <div id="et_line" style="100%;height:100%;"></div>
                    </td>
                </tr>
            </table>
        </div>
    
        <script>
            $(function () {
                require.config({
                    paths: {
                        echarts: '../Common/echarts/'
    
                    }
                });
    
                require(
                    [
                        'echarts',
                        'echarts/theme/macarons',
                        'echarts/chart/bar',
                        'echarts/chart/line',
                        'echarts/chart/pie'
                    ], function (ec) {
    
                        var pieChart = ec.init(document.getElementById('et_pie'));
                        $.ajax({
                            url: '@Url.Action("TradeCount", "PersonalContract")',
                            type: 'post',
                            data: { type: "pie"} ,
                            async: true,
                            dataType: 'json',
                            success: function (result) {
                                //console.log(result);
                                var res = JSON.parse(result);
                                pieChart.setOption({
                                    theme: "macarons",
                                    title: {
                                        text: '当月交易情况',
                                        x: 'center'
                                    },
                                    tooltip: {
                                        trigger: 'item',
                                        formatter: "{a} <br/>{b} : {c} ({d}%)"
                                    },
                                    legend: {
                                        orient: 'vertical',
                                        x: 'left',
                                        data: ['中介交易', '个人交易']
                                    },
    
                                    calculable: true,
                                    series: [
                                        {
                                            name: '访问来源',
                                            type: 'pie',
                                            radius: '55%',
                                            center: ['50%', '60%'],
                                            data: res
                                        }
                                    ]
                                })
                                pieChart.setTheme('macarons');
                            }
                        })
    
    
                        var pieChart1 = ec.init(document.getElementById('et_pie1'));
                        $.ajax({
                            url: '@Url.Action("TradeCount", "PersonalContract")',
                            type: 'post',
                            data: { type: "pie1"} ,
                            async: true,
                            dataType: 'json',
                            success: function (result) {
                                //console.log(result);
                                var res = JSON.parse(result);
                                pieChart1.setOption({
                                    theme: "macarons",
                                    title: {
                                        text: '当日交易情况',
                                        x: 'center'
                                    },
                                    tooltip: {
                                        trigger: 'item',
                                        formatter: "{a} <br/>{b} : {c} ({d}%)"
                                    },
                                    legend: {
                                        orient: 'vertical',
                                        x: 'left',
                                        data: ['中介交易', '个人交易']
                                    },
    
                                    calculable: true,
                                    series: [
                                        {
                                            name: '访问来源',
                                            type: 'pie',
                                            radius: '55%',
                                            center: ['50%', '60%'],
                                            data: res
                                        }
                                    ]
                                })
                                pieChart1.setTheme('macarons');
                            }
                        })
    
    
                        var bar = ec.init(document.getElementById('et_bar'));
                        $.ajax({
                            url: '@Url.Action("TradeCount", "PersonalContract")',
                            type: 'post',
                            data: { type: "bar"} ,
                            async: true,
                            dataType: 'json',
                            success: function (result) {
                                console.log(result);
                                var res = JSON.parse(result);
                                bar.setOption({
                                    theme: "macarons",
                                    title: {
                                        text: '今年每月交易情况',
                                        x: 'center'
                                    },
                                    tooltip: {
                                        trigger: 'axis'
                                    },
                                    legend: {
                                        y: 'bottom',
                                        data: ['中介交易', '个人交易']
                                    },
    
                                    calculable: true,
                                    xAxis: [
                                        {
                                            type: 'category',
                                            data: ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月']
                                        }
                                    ],
                                    yAxis: [
                                        {
                                            type: 'value'
                                        }
                                    ],
                                    series: [
                                        {
                                            name: '中介交易',
                                            type: 'bar',
                                            data: res.agency,
                                            markPoint: {
                                                data: [
                                                    { type: 'max', name: '最大值' },
                                                    { type: 'min', name: '最小值' }
                                                ]
                                            },
                                            markLine: {
                                                data: [
                                                    { type: 'average', name: '平均值' }
                                                ]
                                            }
                                        },
                                        {
                                            name: '个人交易',
                                            type: 'bar',
                                            data: res.personal,
                                            markPoint: {
                                                data: [
                                                    { type: 'max', name: '最大值' },
                                                    { type: 'min', name: '最小值' }
                                                ]
                                            },
                                            markLine: {
                                                data: [
                                                    { type: 'average', name: '平均值' }
                                                ]
                                            }
                                        }
                                    ]
                                })
                                bar.setTheme('macarons');
                            }
                        })
    
                        var chartLine = ec.init(document.getElementById('et_line'));
                        $.ajax({
                            url: '@Url.Action("TradeCount", "PersonalContract")',
                            type: 'post',
                            data: { type: "line"} ,
                            async: true,
                            dataType: 'json',
                            success: function (result) {
                                //console.log(result);
                                var res = JSON.parse(result);
                                chartLine.setOption({
                                    theme: "macarons",
                                    title: {
                                        text: '最近两周交易情况',
                                        x: 'center'
                                    },
                                    tooltip: {
                                        trigger: 'axis'
                                    },
                                    legend: {
                                        y: 'bottom',
                                        data: ['本周', '上周']
                                    }, 
                                    calculable: true,
                                    xAxis: [
                                        {
                                            type: 'category',
                                            boundaryGap: false,
                                            data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
                                        }
                                    ],
                                    yAxis: [
                                        {
                                            type: 'value'
                                        }
                                    ],
                                    series: [
                                        {
                                            name: '本周',
                                            type: 'line',
                                            stack: '总量',
                                            data: res.ThisWeek
                                        },
                                        {
                                            name: '上周',
                                            type: 'line',
                                            stack: '总量',
                                            data: res.LastWeek
                                        }
                                    ]
                                })
                                chartLine.setTheme('macarons');
                            }
                        })
                    }
                );
            });
    
            $(function () {
                $(".page-container").height($(window).height() - 80);
    
                $(window).resize(function () {
                    setTimeout(function () {
                        $(".page-container").height($(window).height() - 80);
                        //$.loading($(".main"));
                    }, 0);
                }).trigger("resize");
            });
    
        </script>
    </body>
    

    4.后端代码

      业务层

    using DbService;
    using Frame.Base;
    using Frame.Model;
    using System;
    using System.Collections.Generic;
    using System.Data;
    using System.Data.Odbc;
    using System.Linq;
    using System.Text;
    
    namespace Frame.Business.PersonalContract
    {
        public class Contract_TradeCount : XT_CONTRACT
        {
            public static DataTable GetDataTable(String flg)
            {
                var db = BaseOperate.CreateDatabase();
                try
                {
                    if (flg.Equals("1"))
                    {
                        var sql = new Sql("select count(*) as total,'中介交易' as name from XT_CONTRACT  where MEDIATION_PERSON=1 and to_char(CREATE_TIME,'mm')=to_char(sysdate,'mm')" +
                        " union all select count(*) as total,'个人交易'as name from XT_CONTRACT  where MEDIATION_PERSON=0 and to_char(CREATE_TIME,'mm')=to_char(sysdate,'mm')");
                        var dbo = db.Query4DataTable(sql.SQL);
                        return dbo;
                    }
                    else if(flg.Equals("2"))
                    {
                        var sql = new Sql("select count(*) as total,'中介交易' as name from XT_CONTRACT  where MEDIATION_PERSON=1 and trunc(CREATE_TIME)=trunc(sysdate)" +
                        " union all select count(*) as total,'个人交易'as name from XT_CONTRACT  where MEDIATION_PERSON=0 and trunc(CREATE_TIME)=trunc(sysdate)");
                        var dbo = db.Query4DataTable(sql.SQL);
                        return dbo;
                    }
                    else if (flg.Equals("3"))
                    {
                        var sql = new Sql("SELECT DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '01', A_AREA, 0)),0,0,count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '01', A_AREA, 0))) M1,"  
                             +" DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '02', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '02', A_AREA, 0))) M2,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '03', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '03', A_AREA, 0))) M3,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '04', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '04', A_AREA, 0))) M4,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '05', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '05', A_AREA, 0))) M5,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '06', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '06', A_AREA, 0))) M6,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '07', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '07', A_AREA, 0))) M7,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '08', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '08', A_AREA, 0))) M8,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '09', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '09', A_AREA, 0))) M9,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '10', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '10', A_AREA, 0))) M10,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '11', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '11', A_AREA, 0))) M11,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '12', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '12', A_AREA, 0))) M12," +
                             "'个人交易' as name "
                             + " FROM XT_CONTRACT"
                             + " WHERE MEDIATION_PERSON=0 and TO_CHAR(CREATE_TIME, 'yyyy') = TO_CHAR(sysdate, 'yyyy')" +
                             " union all " +
                             " SELECT DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '01', A_AREA, 0)),0,0,count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '01', A_AREA, 0))) M1,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '02', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '02', A_AREA, 0))) M2,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '03', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '03', A_AREA, 0))) M3,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '04', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '04', A_AREA, 0))) M4,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '05', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '05', A_AREA, 0))) M5,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '06', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '06', A_AREA, 0))) M6,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '07', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '07', A_AREA, 0))) M7,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '08', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '08', A_AREA, 0))) M8,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '09', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '09', A_AREA, 0))) M9,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '10', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '10', A_AREA, 0))) M10,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '11', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '11', A_AREA, 0))) M11,"
                             + " DECODE(SUM(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '12', A_AREA, 0)), 0, 0, count(DECODE(TO_CHAR(CREATE_TIME, 'MM'), '12', A_AREA, 0))) M12," +
                             "'中介交易' as name"
                             + " FROM XT_CONTRACT"
                             + " WHERE MEDIATION_PERSON=1 and TO_CHAR(CREATE_TIME, 'yyyy') = TO_CHAR(sysdate, 'yyyy')");
                        var dbo = db.Query4DataTable(sql.SQL);
                        return dbo;
                    }
                    else 
                    {
                        var sql = new Sql("select '上周' as type,to_number(to_char(CREATE_TIME,'D')-1) as myweek,count(*) as total from XT_CONTRACT  where CREATE_TIME between (trunc(sysdate,'iw') - 7) and  (trunc(sysdate,'iw') - 1) group by to_number(to_char(CREATE_TIME,'D')-1)" +
                                         "  union all "
                                         + "select '本周' as type, to_number(to_char(CREATE_TIME, 'D') - 1) as myweek, count(*) as total from XT_CONTRACT where to_char(CREATE_TIME, 'iw') = to_char(sysdate, 'iw') group by to_number(to_char(CREATE_TIME, 'D') - 1)");
                        var dbo = db.Query4DataTable(sql.SQL);
                        return dbo;
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    db.Dispose();
                }
            }
        }
    }

      视图层

     public ActionResult TradeCount()
            {
                var type = Params("type");
                if (!type.IsNullOrEmpty()) { 
                    var result = new JsonResult();
                    var flg = "";
                    if (type.Equals("pie"))
                    {
                        flg = "1";
                    }
                    else if (type.Equals("pie1"))
                    {
                        flg = "2";
                    }
                    else if (type.Equals("bar"))
                    {
                        flg = "3";
                    }
                    else if (type.Equals("line"))
                    {
                        flg = "4";
                    }
                    
    
                    DataTable dto = Contract_TradeCount.GetDataTable(flg);
                    List<object> lists = new List<object>();
                    Dictionary<String, Object> week = new Dictionary<String, Object>();
                    Dictionary<String, Object> year = new Dictionary<String, Object>();
                    if (flg.Equals("4"))
                    {
                        int[] snum = new int[7];
                        int[] bnum = new int[7];
                        foreach (DataRow dr in dto.Rows)
                        {
                            int[] num = new int[] { 1, 2, 3, 4, 5, 6, 7 };
                            if (dr["type"].Equals("上周"))
                            {
                                for(int i = 0; i < num.Length; i++)
                                {
                                    if(Convert.ToInt32(dr["myweek"]) == num[i])
                                    {
                                        snum[i] = Convert.ToInt32(dr["total"]);
                                    }
                                }
                            }
                            else
                            {
                                for (int i = 0; i < num.Length; i++)
                                {
                                    if (Convert.ToInt32(dr["myweek"]) == num[i])
                                    {
                                        bnum[i] = Convert.ToInt32(dr["total"]);
                                    }
                                    else
                                    {
                                        bnum[i] = 0;
                                    }
                                } 
                            } 
                        }
                        week.Add("LastWeek", snum);
                        week.Add("ThisWeek", bnum);
                        result.Data = JsonHelper.Serialize(week);
                        //result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                        return result;
                    }
                    else if (flg.Equals("3"))
                    {
                        int[] znum = new int[12];
                        int[] gnum = new int[12];
                        foreach (DataRow dr in dto.Rows)
                        {
                            String[] str = new String[] { "M1","M2","M3","M4","M5","M6","M7","M8","M9","M10","M11","M12" };
                            if (dr["name"].Equals("个人交易"))
                            {
                                for (int i = 0; i < str.Length; i++)
                                {
                                    gnum[i] = Convert.ToInt32(dr[str[i]]);
                                }
                            }
                            else
                            {
                                for (int i = 0; i < str.Length; i++)
                                {
                                    znum[i] = Convert.ToInt32(dr[str[i]]);
                                }
                            }
                        }
                        year.Add("personal", gnum);
                        year.Add("agency", znum);
                        result.Data = JsonHelper.Serialize(year);
                        //result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                        return result;
                    }
                    else
                    {
                        foreach (DataRow dr in dto.Rows)
                        {
                            var obj = new { value = dr["total"], name = dr["name"] };
                            lists.Add(obj);
                        }
                        result.Data = JsonHelper.Serialize(lists);
                        //result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                        return result;
                    }
                    
                }
                else
                {
                    return View();
                }

    5.总结

      @1.Echarts模块化引入为了是做配置开发,更灵活,更全面

      @2.后端.net查询数据并转为前端需要的json格式,前端做解析即可。

    6.难点

      @1.后端查询本周和上周每天的数据量count(*),写sql发现只查出了有数据的,如果星期一没数据则不会在结果集显示,

        而前端需要一周每天的数据量,所以这个工作就交给实体层在传给前端时做数据组装,如果星期几没有数据则自动为其填充默认值0,组装完之后传给前端即可

      @2.后端查询今年"个人交易"和"中介交易"每个月的数据量count(*),此sql是由网上查询"oracle查询本年每个月的数据",从一位博主文章中的sql修改而来。

        博主文章地址:https://www.cnblogs.com/lidj/p/5482389.html

        本按钮的sql是由以上的博主文章的sql变更的,关键有两点:首先是做if else判断语句,sql语句中肯定不能带有逻辑判断语句,所以需要用一个函数DECODE来到达同样的效果。

        最后是查询的字段(除了时间字段之外),该字段必须是有值并且能做统计计算,这样查询出的数据才正确。

    7.提升

      以前写前端的Echarts报表页面,都是采用公司封装好的写,优点是写代码快,但是缺点很多,样式固定、不清楚执行原理、移植性差。

    经过此次用原生的开发方式,echarts报表开发,现在已经了然于胸,以后遇到此种需求,自己可以自定义化开发。

      

        

      

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  • 原文地址:https://www.cnblogs.com/yixtx/p/9372244.html
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