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尊敬的专家,
我对如何将输入参数传递到ODATA v4中的计算视图有疑问。
有一个计算视图,其中包含两个输入参数(IP_FROM_DATE和IP_TO_DATE)。 计算视图的列如下-
DEVICE_ID,DTMSTMP,ID,SRNO
我创建了一个具有如下视图元数据的实体-
@ cds.persistence.exists
实体CV_ONOFFDEVICE_REPORT {
键DEVICE_ID:字符串(100);
键DTMSTMP:时间戳;
ID:字符串(50);
SRNO:字符串(100);
}
我已经在cat_service.cds中创建了如下服务
代码-
服务offline_device_report {
实体CV_OFFLINEDEVICE_REPORT_SRV @(
title:'{ONOFF DEVICE REPORT}',
说明:" {OFFLINE DEVICE REPORT}",
功能:{InsertRestrictions:{Insertable:False},UpdateRestrictions:{Updatable:False},DeleteRestrictions:{Deletable:False}})
作为CV_ONOFFDEVICE_REPORT上的投影;
当我尝试将输入参数(IP_FROM_DATE和IP_TO_DATE)传递到URL中以查看数据时
出现以下错误-
在'CV_OFFLINEDEVICE_REPORT_SRV('IP_FROM_DATE'='2019-07-23T00:00:00.000Z','IP_TO_DATE'='2019-07-23T00:00:00.000Z'中找不到预期的uri令牌'ODataIdentifier' )"在位置29
日志信息-
GET/offline_device_report/CV_OFFLINEDEVICE_REPORT_SRV('IP_FROM_DATE'%20=%20'2019-07-23T00:00:00.000Z',%20'IP_TO_DATE'%20=%20'2019-07-23T00:00:00.000 Z') #2.0#2019 08 02 06:44:23:211#+ 00:00#ERROR#/AppController/Dispatcher ################ PLAIN ## ['Error:WebSocket is 未打开:在WebSocket.send(/home/vcap/app/appcontroller.7705909036560120120/AppController/node_modules/ws/lib/websocket.js:314:19)中的readyState 3(CLOSED)\\ n在Object.sendEvent中 (/home/vcap/app/appcontroller.7705909036560120399/AppController/node_modules/applicationcontroller/controller/appStatusWebsocketServer.js:151:19)\\n在EventEmitter.eventEmitter.onAppControllerEvent(/home/vcap/app/app/appcontroller.7705909036560120399/AppController /node_modules/applicationcontroller/server.js:37:18)\\n在emitOne(events.js:121:20)\\ n在EventEmitter.emit(events.js:211:7)\\ n在EventEmitter.eventEmitter .sendAppControllerEvent(/home/vcap/app/appcontroller.7705909036560120399/AppController/node_modules/applicationcontroller/utils/internalEventCreator.js:7:7)\\n在LogReader._transform(/home/vcap/app/app/appcontroller.7705909036560120399/AppController/node_modules/ap plicationcontroller/utils/appLogReader.js:52:31)\\ n在LogReader.Transform._read(_stream_transform.js:186:10)\\ n在LogReader.Transform._write(_stream_transform.js:174:12)\\ n在doWrite(_stream_writable.js:396:12)\\ n在writeOrBuffer(_stream_writable.js:382:5)\\ n在LogReader.Writable.write(_stream_writable.js:290:11)\\ n在套接字。 ondata(_stream_read.js:639:20)\\ n在emitOne(events.js:116:13)\\ n在Socket.emit(events.js:211:7)\\ n在addChunk(_stream_visible.js: 263:12)']# [2019-08-02T06:44:23.210Z | 警告| 1280452]:在'CV_OFFLINEDEVICE_REPORT_SRV('IP_FROM_DATE'='2019-07-23T00:00:00.000Z','IP_TO_DATE'='2019-07-23T00:00:00.000Z'中找不到预期的uri令牌'ODataIdentifier' )'在位置29 asz728nvte502vufex-njs-alerts-srv.cfapps.eu10.hana.ondemand.com-[2019-08-02T06:44:23.203 + 0000]" GET/offline_device_report/CV_OFFLINEDEVICE_REPORT_SRV('IP_FROM_DATE'%20 =%20'2019-07 -23T00:00:00.000Z',%20'IP_TO_DATE'%20 =%20'2019-07-23T00:00:00.000Z')HTTP/1.1" 400 0 393"-"" Mozilla/5.0(Windows NT 10.0 ; Win64; x64)AppleWebKit/537.36(KHTML,例如Gecko)Chrome/75.0.3770.142 Safari/537.36""-"" 10.0.139.23:61035" x_forwarded_for:"-" x_forwarded_proto:" https" vcap_request_id:" d473384c-5b16- 4a26-4fc3-6c9cfd9dcec8" response_time:0.010153265 app_id:" 7aa6886e-fdee-462b-a593-a502e0b80650" app_index:" 0" x_correlationid:"-" tenantid:"-" x_b3_traceid:" bf230d55fd6313" -" b3:" bf230d55fd631ce4-bf230d55fd631ce4"
是的。 请检查
https://cap.cloud.sap/docs/advanced/hana/#views-with-parameters
和URL
/catalog/service(IP_NO ='1')/Set
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