ArcGIS For Server10.1新特性之-服务器端打印服务及前端调用

ArcGIS For Server10.1新特性之一就是服务器端打印，这个打印功能使用起来非常的方便，因为它是一个现成的GP服务，使用的时候只要输入相应的地图，地图范围，模板的名称等，就可以按需打印出你需要的地图。下面我们来看一下从制作模版到发布服务及服务调用的整个流程吧：

1、自己定义一个打印模板，如下图是布局视图：



将模版保存到C:\Program Files (x86)\ArcGIS\Desktop10.1\Templates\ExportWebMapTemplates（当然你也可以保存到其他路径下，在发布服务的时候你可以指定你自己的路径）

2、在ArcToolBox中打开Export Web Map工具：



输入参数：Web Map as JSON为空；Output File为默认参数；Format可以自己输入；Layout Templates Folder(optional)选择一个模板文件夹（这里选择ArcGIS安装目录的模板文件夹），然后Layout Templates （optional）就可以选择一个默认的模板了



点击OK，打开菜单栏Geoprocessing/Results，执行完成后选中Export Web Map右键Share as Geoprocessing services





下一步、下一步：Analyse后如果没有错误，直接点击Publish发布：



ArcCatalog中查看如下：



3、服务发布好后，可一下在Flex中如何调用一把：ArcGIS Flex API3.0也增加了对该打印服务的支持：





代码如下：print.mxml

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:esri="http://www.esri.com/2008/ags"
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
<fx:Declarations>
<!-- 将非可视元素（例如服务、值对象）放在此处 -->
</fx:Declarations>

<fx:Script>
<![CDATA[
import mx.managers.PopUpManager;

private function onclick(event:MouseEvent):void
{

var popWin:printForm = printForm(PopUpManager.createPopUp(this,printForm,false));
popWin.printTask.getServiceInfo();//调用 打印 GP，获取模版和格式参数
popWin.map = this.myMap;

}
]]>
</fx:Script>

<esri:Map id="myMap">
<esri:ArcGISDynamicMapServiceLayer url="http://localhost:6080/arcgis/rest/services/routTest2/MapServer"/>
</esri:Map>
<mx:Button id="button" x="409" y="10" label="打印" click="onclick(event)"/>
</s:Application>

printForm.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:esri="http://www.esri.com/2008/ags"
width="100%" height="100%"
close="PopUpManager.removePopUp(this)"
>
<fx:Script>
<![CDATA[
import com.esri.ags.Map;
import com.esri.ags.events.PrintEvent;
import com.esri.ags.tasks.supportClasses.DataFile;
import com.esri.ags.tasks.supportClasses.JobInfo;
import com.esri.ags.tasks.supportClasses.ParameterValue;
import com.esri.ags.tasks.supportClasses.PrintServiceInfo;
import com.esri.ags.tasks.supportClasses.LegendOptions;
import com.esri.ags.tasks.supportClasses.LegendLayer;

import mx.collections.IList;
import mx.controls.Alert;
import mx.managers.PopUpManager;
import mx.rpc.events.FaultEvent;
import com.esri.ags.layers.*;

[Bindable]
public  var  map:Map;

//打印结束后处理
private function printTask_executeCompleteHandler(event:PrintEvent):void
{

var paramValue:ParameterValue = event.executeResult.results[0];
var dataFile:DataFile = paramValue.value as DataFile;
navigateToURL(new URLRequest(dataFile.url));
}

private function printTask_getResultDataCompleteHandler(event:PrintEvent):void
{

var dataFile:DataFile = event.parameterValue.value as DataFile;
navigateToURL(new URLRequest(dataFile.url));
}

private function printTask_jobCompleteHandler(event:PrintEvent):void
{

var jobInfo:JobInfo = event.jobInfo;
if (jobInfo.jobStatus == JobInfo.STATUS_SUCCEEDED)
{
printTask.getResultData(jobInfo.jobId);
}
else
{

Alert.show(jobInfo.jobStatus);
}
}

//获取打印参数（模版和格式）
protected function printTask_getServiceInfoCompleteHandler(event:PrintEvent):void
{
initLayoutTemplates(event.serviceInfo);
initFormats(event.serviceInfo);

printButton.enabled = true;
}

//获得所有支持的打印格式
private function initFormats(serviceInfo:PrintServiceInfo):void
{
var formatsVisibility:Boolean = true;
var formats:IList = serviceInfo.formats;
formatsDDL.selectedItem = serviceInfo.defaultFormat;

}

//获得所有模版
private function initLayoutTemplates(serviceInfo:PrintServiceInfo):void
{
var layoutTemplatesVisibility:Boolean = true;
layoutTemplatesFI.label = "模版";
var layoutTemplates:IList = serviceInfo.layoutTemplates;
layoutTemplatesDDL.selectedItem = serviceInfo.defaultLayoutTemplate;
}

//获取打印比例尺
private function printButton_exportWebMapClickHandler(event:MouseEvent):void
{

layoutOptions.title = txtTitle.text;

layoutOptions.legendOptions = getLegendOptions();

var oldscale:Number;
var oldLODs:Array;
if (scaleCheckbox.selected)
{

oldscale =map.scale;
oldLODs = map.lods;

map.lods = null; //prevent LOD snapping
map.scale = Number(scaleInput.text);
}

if (printTask.getServiceInfoLastResult.isServiceAsynchronous)
{
printTask.submitJob(printParameters);
}
else
{
printTask.execute(printParameters);
}

if (scaleCheckbox.selected)
{
map.scale = oldscale;
map.lods = oldLODs;
}
}

private function getLegendOptions():LegendOptions
{
var result:LegendOptions = new LegendOptions();
var legendLayers:Array = [];

for each (var layer:Layer in map.layers)
{
if (layer.name.indexOf("hiddenLayer_") == -1 && !(layer is GraphicsLayer && !(layer is FeatureLayer)))
{
var legendLayer:LegendLayer = new LegendLayer();
legendLayer.layerId = layer.id;
legendLayers.push(legendLayer);
}
}

result.legendLayers = legendLayers;

return result;
}

protected function printTask_faultHandler(event:FaultEvent):void
{

Alert.show(event.fault.toString());

}

]]>
</fx:Script>

<fx:Declarations>
<esri:PrintTask id="printTask" url="http://localhost:6080/arcgis/rest/services/ExportWebMap/GPServer/Export%20Web%20Map"
executeComplete="printTask_executeCompleteHandler(event)"
fault="printTask_faultHandler(event)"
getResultDataComplete="printTask_getResultDataCompleteHandler(event)"
getServiceInfoComplete="printTask_getServiceInfoCompleteHandler(event)"
jobComplete="printTask_jobCompleteHandler(event)"
showBusyCursor="true"/>
<esri:PrintParameters id="printParameters"
format="{formatsDDL.selectedItem}"
layoutTemplate="{layoutTemplatesDDL.selectedItem}"
map="{map}"
preserveScale="{scaleCheckbox.selected}">
<esri:layoutOptions>
<esri:LayoutOptions id="layoutOptions"/>
</esri:layoutOptions>
</esri:PrintParameters>
</fx:Declarations>

<mx:FormItem id="titleFI"  width="100%" label="标题" >
<s:TextInput id="txtTitle"  width="100%"  text="请输入标题"/>
</mx:FormItem>
<mx:FormItem id="layoutTemplatesFI"  includeInLayout="true" width="100%" label="模版"  visible="true">
<s:DropDownList id="layoutTemplatesDDL" width="175"
dataProvider="{printTask.getServiceInfoLastResult.layoutTemplates}"
requireSelection="true"/>
</mx:FormItem>
<mx:FormItem id="formatsFI"  width="100%" label="格式"  visible="true">
<s:DropDownList id="formatsDDL"   dataProvider="{printTask.getServiceInfoLastResult.formats}"    width="100" requireSelection="true"/>
</mx:FormItem>
<s:HGroup id="scaleFI"
width="100%"
horizontalAlign="center"
visible="true">
<s:CheckBox id="scaleCheckbox" label="打印比例尺"/>
<s:TextInput id="scaleInput"
width="100%"
enabled="{scaleCheckbox.selected}"
restrict="0-9"/>
</s:HGroup>
<s:HGroup width="100%" horizontalAlign="center" >
<s:Button id="printButton" label="打印"      click="printButton_exportWebMapClickHandler(event)"
enabled="false"/>
</s:HGroup>
</mx:TitleWindow>