解决GP服务产生的结果无法自动发布为地图服务的问题

在ArcGIS for Javascript API或REST API调用GP服务时，常常会遇到这样一种情况：GP服务运行以后，执行成功，也能够生成结果，然而结果并没有直接产生动态的地图服务供API调用（即使勾选了”view results with a map service”，如下图）。

那么产生这一现象的原因可能为：

1、 GP服务输出的结果路径存在人为干预，也就是生成的结果不在ArcGIS for Server管理的目录下（默认执行的结果会在JOB目录的Scratch中）。

2、 未勾选将GP服务的结果作为地图服务发布”view results with a map service”。

3、 GP服务生成的结果没有存储在gdb中（只是推断，还需进一步验证）。

那么，我们现在需要解决的是，在发布了GP服务以后，如何让GP执行后的结果自动发布为地图服务呢？

实现的思路是：

1、 制作GP工具。

2、 将GP生成的结果写入mxd文档。

3、 生成服务连接文件。

4、 发布地图文档为地图服务。

GP工具以buffer为例，整个python脚本如下：

# -*- coding: utf-8 -*-
# ---------------------------------------------------------------------------
# PublishImageService.py
# Created on: 2015-10-16 15:49:27.00000
#   (generated by HUIHUI)
# Usage:
# Description: python publish service
# ---------------------------------------------------------------------------

# Import arcpy module
import os as OS
import arcpy

#script auguments
wrkpc = arcpy.GetParameterAsText(0)
connectionfilename = arcpy.GetParameterAsText(1)
server_url = arcpy.GetParameterAsText(2)
username = arcpy.GetParameterAsText(3)
password = arcpy.GetParameterAsText(4)
servicename = arcpy.GetParameterAsText(5)
InputFC = arcpy.GetParameterAsText(6)
OutputFC = arcpy.GetParameterAsText(7)
distance = arcpy.GetParameterAsText(8)

#make a buffer shapefile
arcpy.Buffer_analysis(InputFC, OutputFC, distance, "", "", "", "")

#define a parh about mxdTemplate and symbologyLayer
mxdTemplate = OS.path.join(wrkpc,"Template.mxd")
symbologyLayer = OS.path.join(wrkpc,"buffer1.lyr")

# Make a layer from the feature class
outputLayer = OS.path.join(wrkpc, "buffer.lyr")
arcpy.MakeFeatureLayer_management(OutputFC,outputLayer)
arcpy.ApplySymbologyFromLayer_management (outputLayer, symbologyLayer)

# Create a Describe object from the feature layer.
desc = arcpy.Describe(symbologyLayer)

# Copy a map document template
newMxdPath = OS.path.join(wrkpc, "buffer.mxd")
arcpy.Copy_management(mxdTemplate, newMxdPath, "")

# Add layer into primary map document
mxd = arcpy.mapping.MapDocument(newMxdPath)
df = arcpy.mapping.ListDataFrames(mxd, "Layers")[0]
addLayer = arcpy.mapping.Layer(outputLayer)
arcpy.mapping.AddLayer(df, addLayer, "TOP")
mxd.title = "buffer test"
mxd.summary = "buffer test"
mxd.description = "buffer test"
mxd.tags = "buffer test"
mxd.save()
del mxd, df

# createGISServerConnectionFile,define local variable
out_folder_path = wrkpc
staging_folder_path = wrkpc

arcpy.mapping.CreateGISServerConnectionFile("PUBLISH_GIS_SERVICES",
                                            out_folder_path,
                                            connectionfilename,
                                            server_url,
                                            "ARCGIS_SERVER",
                                            False,
                                            staging_folder_path,
                                            username,
                                            password,
                                            "SAVE_USERNAME")

# define local variables
mapDoc = arcpy.mapping.MapDocument(newMxdPath)
sddraft = OS.path.join(wrkpc,"buffer.sddraft")
sd = OS.path.join(wrkpc,"buffer.sd")
summary = "this is a test"
tags = "this is a test"

# creste service definition draft
analysis = arcpy.mapping.CreateMapSDDraft(mapDoc,
                                          sddraft,
                                          servicename,
                                          "ARCGIS_SERVER",
                                          connectionfilename,
                                          False,
                                          "WP_MapService",
                                          summary,tags)

#stage and upload the service if the sddraft analysis didn't contain errors
if analysis['errors'] == {}:
    # excute StageService
    arcpy.StageService_server(sddraft,sd)
    # excute UploadServiceDfinition
    arcpy.UploadServiceDefinition_server(sd,connectionfilename)
else:
    # if the sddraft analysis contained errors,display them
    print analysis['errors']

将脚本添加到工具箱中，设置相关参数，执行界面如下：

执行成功，将这个工具发布为GP服务，测试GP服务执行成功与否。很明显，生成buffer以后的面图层，自动的发布为了地图服务，问题得到了解决。查看结果如下：

GP产生的结果自动发布为地图服务的图形展示：

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