此示例更新 web 地图中引用服务的 URL。这尤其适用于服务的 URL 已经更改并且您不想要求用户移除或向所有 web 地图重新添加该服务的情况。有很多原因可造成服务 URL 发生更改。例如，服务可能迁移到了新的服务器，更改了服务名称，服务被移动到服务器的另一个文件夹中或服务器的域前缀已经更改。
运行此脚本时，您需要指定以下信息：
- 用于访问 Portal for ArcGIS 的 URL。该 URL 可以是 ArcGIS Web Adaptor URL，https://webadaptor.domain.com/arcgis或托管门户的计算机 URL，例如，https://portal.domain.com:7443/arcgis。指定 URL 时必须包含完全限定的机器域名。
- 具有门户管理权限的帐户的用户名和密码。
- 将更新的项目类型。指定“web 地图”以更新门户中的所有 Web 地图。
- Web 地图中当前引用的服务 URL，例如，http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServer。
- Web 地图中将更新的服务的 URL，例如，http://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer。
下面的示例将门户中所有 Web 地图的地图服务 URL http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServer 替换为地图服务 URL http://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer：
python updateWebmapServices.py https://webadaptor.domain.com/arcgis admin pass.word "type: Web Map" http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServer http://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer
#!/usr/bin/env python
# Requires Python 2.7+
# Sample Usage:
# python updateWebmapServices.py <sourcePortal> <sourceAdmin> <sourcePassword>
# <query> <oldUrl> <newUrl>
import urllib
import json
import argparse
def generateToken(username, password, portalUrl):
'''Retrieves a token to be used with API requests.'''
parameters = urllib.urlencode({'username' : username,
'password' : password,
'client' : 'referrer',
'referrer': portalUrl,
'expiration': 60,
'f' : 'json'})
response = urllib.urlopen(portalUrl + '/sharing/rest/generateToken?',
parameters).read()
try:
jsonResponse = json.loads(response)
if 'token' in jsonResponse:
return jsonResponse['token']
elif 'error' in jsonResponse:
print jsonResponse['error']['message']
for detail in jsonResponse['error']['details']:
print detail
except ValueError, e:
print 'An unspecified error occurred.'
print e
def searchPortal(portalUrl, query=None, totalResults=None, sortField='numviews',
sortOrder='desc', token=None):
'''
Search the portal using the specified query and search parameters.
Optionally provide a token to return results visible to that user.
'''
# Default results are returned by highest
# number of views in descending order.
allResults = []
if not totalResults or totalResults > 100:
numResults = 100
else:
numResults = totalResults
results = __search__(portalUrl, query, numResults, sortField, sortOrder, 0,
token)
if not 'error' in results.keys():
if not totalResults:
totalResults = results['total'] # Return all of the results.
allResults.extend(results['results'])
while (results['nextStart'] > 0 and
results['nextStart'] < totalResults):
# Do some math to ensure it only
# returns the total results requested.
numResults = min(totalResults - results['nextStart'] + 1, 100)
results = __search__(portalUrl=portalUrl, query=query,
numResults=numResults, sortField=sortField,
sortOrder=sortOrder, token=token,
start=results['nextStart'])
allResults.extend(results['results'])
return allResults
else:
print results['error']['message']
return results
def __search__(portalUrl, query=None, numResults=100, sortField='numviews',
sortOrder='desc', start=0, token=None):
'''Retrieve a single page of search results.'''
params = {
'q': query,
'num': numResults,
'sortField': sortField,
'sortOrder': sortOrder,
'f': 'json',
'start': start
}
if token:
# Adding a token provides an authenticated search.
params['token'] = token
request = portal + '/sharing/rest/search?' + urllib.urlencode(params)
results = json.loads(urllib.urlopen(request).read())
return results
def updateWebmapService(webmapId, oldUrl, newUrl, token, portalUrl):
'''Replaces the URL for a specified map service in a web map.'''
try:
params = urllib.urlencode({'token' : token,
'f' : 'json'})
print 'Getting Info for: ' + webmapId
# Get the item data.
reqUrl = (portalUrl + '/sharing/content/items/' + webmapId +
'/data?' + params)
itemDataReq = urllib.urlopen(reqUrl).read()
itemString = str(itemDataReq)
# Find the service URL to be replaced.
if itemString.find(oldUrl) > -1:
newString = itemString.replace(oldUrl, newUrl)
# Get the item's info for the addItem parameters
itemInfoReq = urllib.urlopen(portalUrl +
'/sharing/content/items/' +
webmapId + '?' + params)
itemInfo = json.loads(itemInfoReq.read(),
object_hook=__decodeDict__)
print 'Updating ' + itemInfo['title']
# Post back the changes overwriting the old map
if(itemInfo['ownerFolder'] is not None):
modRequest = urllib.urlopen(portalUrl +
'/sharing/content/users/' +
itemInfo['owner'] +
'/' + itemInfo['ownerFolder'] +
'/items/' + webmapId +
'/update?' + params ,
urllib.urlencode(
{'text' : newString}
))
else:
modRequest = urllib.urlopen(portalUrl +
'/sharing/content/users/' +
itemInfo['owner'] +
'/items/' + webmapId +
'/update?' + params ,
urllib.urlencode(
{'text' : newString}
))
# Evaluate the results to make sure it happened
modResponse = json.loads(modRequest.read())
if modResponse.has_key('error'):
raise AGOPostError(webmapId, modResponse['error']['message'])
else:
print 'Successfully updated the urls'
else:
print 'Didn\'t find any services with ' + oldUrl
except ValueError as e:
print 'Error - no web map specified'
except AGOPostError as e:
print e.webmap
print 'Error updating web map ' + e.webmap + ': ' + e.msg
# Helper functions for decoding the unicode values in the webmap json.
def __decodeDict__(dct):
newdict = {}
for k, v in dct.iteritems():
k = __safeValue__(k)
v = __safeValue__(v)
newdict[k] = v
return newdict
def __safeValue__(inVal):
outVal = inVal
if isinstance(inVal, unicode):
outVal = inVal.encode('utf-8')
elif isinstance(inVal, list):
outVal = __decode_list__(inVal)
return outVal
def __decode_list__(lst):
newList = []
for i in lst:
i = __safeValue__(i)
newList.append(i)
return newList
class AGOPostError(Exception):
def __init__(self, webmap, msg):
print 'ok'
self.webmap = webmap
self.msg = msg
# Run the script.
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('portal',
help=('url of the Portal (e.g. '
'https://portal.domain.com:7443/arcgis)'))
parser.add_argument('username', help='username')
parser.add_argument('password', help='password')
parser.add_argument('query', help='search string to find content')
parser.add_argument('oldUrl', help='the URL to replace')
parser.add_argument('newUrl', help='the new URL')
# Read the command line arguments.
args = parser.parse_args()
portal = args.portal
username = args.username
password = args.password
query = args.query
oldUrl = args.oldUrl
newUrl = args.newUrl
# Get a token for the source Portal for ArcGIS.
token = generateToken(username=username, password=password,
portalUrl=portal)
# Get a list of the content matching the query.
content = searchPortal(portalUrl=portal,
query=query,
token=token)
for item in content:
if item['type'] == 'Web Map':
updateWebmapService(item['id'], oldUrl, newUrl, token=token,
portalUrl=portal)
print 'Update complete.'