//方法封装

function routeplan(x1, x2, y1, y2, barrierPathArray, isDraw, callback) {

    require([

        "esri/symbol/SimpleLineSymbol",

        "esri/Color",

        "esri/tasks/RouteTask",

        "esri/tasks/FreatureSet",

        "esri/tasks/RouteParameters"

    ], function () {

        var routeServerUrl = url;//对应道路图层的服务图层

        var routeGraphicLayer = new GraphicLayer(map, layerName);

        routeGraphicLayer.clear();//每规划一次删除对应图层

        var map = map;

        var wkid = 5555;

        //起点

        var ptStart = new esri.geometry.Point(parseFloat(x1), parseFloat(y1), new esri.SpatialReference({ wkid: wkid }));

        //终点

        var ptEnd = new esri.geometry.Point(parseFloat(x2), parseFloat(y2), new esri.SpatialReference({ wkid: wkid }));

        var startPtGra = new esri.Graphic(ptStart);

        var endPtGra = new esri.Graphic(ptEnd);

        //设置路径样式

        var routeSymbol = new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([1, 2, 3, 1], 5));//说明：rgb透明度，线宽

        //起点、终点尾部样式

        var routeSymbolDef = new esri.symbol.SimpleLineSymbol(new esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([2, 3, 4, 5], 2));

        var routeTask = new esri.tasks.RouteTask(routeServerUrl);

        var routeParams = new esri.tasks.routeParameters();

        //设置参数

        routeParams.outSpatialReference = { wkid: wkid };

        routeParams.retuenDirection = true;

        routeParams.directionsLengthUnits = esri.Units.METERS;

        routeParams.stops = new esri.tasks.FeatureSet();

        routeParams.stops.features.push(startPtGra);

        routeParams.stops.features.push(endPtGra)

        route = JSON.stringify(barrierPathArray);

        var temp = jQuery.parseJSON(route);

        var array = [];

        $.each(temp, function (i, v) {

            var point = [v[0], item[1]];

            array.push(point);

        });

        //设置路障参数

        if (array.length > 0) {

            var barrierRoute = new esri.geometry.Polyline(new esri.SpatialReference({ wkid: wkid }));

            var barriersGraphic = new esri.Graphic(barrierRoute);

            routeParams.PolylineBarriers = new esri.tasks.FeatureSet();

            routeParams.PolylineBarriers.features.push(barriersGraphic);

        }

        if (routeParams.stops.features.length == 0) {

            alert("参数不全，无法分析");

            return;

        }

        routeTask.solve(routeParams,function(solveResult){

            if(callback){

                callback(solveResult);

            }

            var routeResults=solveResult.routeResults;

            var res=routeResults.length;

            if9(isDraw=="false"){

                return;

            }

            if(res>0){

                for(var i=0;i<res;i++){

                    var graphicroute=routeResults[i];

                    var graphic=graphicroute.route;

                    graphic.setSymbol(routeSymbol);

                    routeGraphicLayer.add(graphic);

                    //连接路线起点、终点、对应的定位起点、终点

                    var paths=graphic.geometry.paths[0];

                    var routeStr=paths[0];

                    var routeEnd=paths[paths.length-1];

                    var routeStrline=new esri.geometry.Polyline([[x1,y1],routeStr],new esri.SpatialReference({wkid:wkid}));

                    var routeEndline=new esri.geometry.Polyline([[x2,y2],routeEnd],new esri.SpatialReference({wkid:wkid}));

                    var strlinegraphic=new esri.Graphic(routeStrline,routeSymbolDef);

                    var endlinegraphic=new esri.Graphic(routeEndline,routeSymbolDef);

                    routeGraphicLayer.add(strlinegraphic);

                    routeGraphicLayer.add(endlinegraphic);

                }

            }

            else{

                alert("结果为空");

            }

        },function(errpr){

            alert(errpr);

        });

}