没有EWS，如何把其他系统的Calendar同步到Exchange？(2)

import groovyx.net.http.*class ExchangeSyncService {    static transactional = true        static DOMAIN = 'my-domain'    static CTMS_SYNC_USERNAME = 'usr'    static CTMS_SYNC_PASSWORD = 'pwd'    static HTTP_BUILDER_POOL = [:]    private static getHttpBuilder(username) {        HTTP_BUILDER_POOL[username] ?: ( HTTP_BUILDER_POOL[username] = new HTTPBuilder( "https://webmail.${DOMAIN}.com" ) )    }    def sendAppointment(params) {        def username = CTMS_SYNC_USERNAME, password = CTMS_SYNC_PASSWORD        _login(username, password)        getHttpBuilder(username).post( path: "/Exchange/${username}/日历", body: getAppointmentBody(params)) {res->            println res.statusLine.statusCode        }    }    def saveTask(params) {        def username = params.session.user?.username, password = params.session.user?.password        _login(username, password)        getHttpBuilder(username).post( path: "/Exchange/${username}/任务", body: getTaskBody(params)) {res->            println res.statusLine.statusCode        }    }    private _login(username, password) {        getHttpBuilder(username).post(          path: '/exchweb/bin/auth/owaauth.dll',          body: [destination:"https://webmail.${DOMAIN}.com/Exchange",            flags:'0',            username:"${DOMAIN}/${username}",            password:password]          ) {res->          if( res.statusLine.statusCode == 302 ) {            println "${username} logged in to exchange server successfully."          }        }    }    private getAppointmentBody(m) {        ["Cmd": "sendappt","CmdReferring": "new","Embedded": "0","FORMTYPE": "appointment","Importance": "2","Optional": m.optional,//"sam.ds.chen@gmail.com; somebody@grs-cro.com","ReadForm": "1","Required": m.required,//"sachen@grs-cro.com","Resource": m.resource,//"sam.ds.chen@hotmail.com","urn:schemas:calendar:alldayevent": "1","urn:schemas:calendar:busystatus": "BUSY","urn:schemas:calendar:dtend": m.dtend,//"2011-09-21T16:00:00.000Z", //bug：总是用Exchange服务器所在的美国时区"urn:schemas:calendar:dtstart": m.dtstart,//"2011-09-21T15:30:00.000Z", //bug：总是用Exchange服务器所在的美国时区"urn:schemas:calendar:location": "","urn:schemas:calendar:reminderoffset": m.reminderoffset,//"900","urn:schemas:calendar:responserequested": "0","urn:schemas:httpmail:importance": "1","urn:schemas:httpmail:subject": m.subject,//"(sent by ctmssync)","urn:schemas:httpmail:textdescription": "Accept it to get it on your calendar"          ]    }    private getTaskBody(m) {        ["Cmd": "savetask","CmdReferring": "new","Embedded": "0","FORMTYPE": "task","MsgClass": "IPM.Task","ReadForm": "1","SENDUPDATE": "0","exception": "","http://schemas.microsoft.com/exchange/tasks/percentcomplete": "0","http://schemas.microsoft.com/exchange/tasks/resetreminder": "","http://schemas.microsoft.com/mapi/reminderset": "1","task_due": m.task_due,//"2011-08-04T00:00:00.000Z","task_remindertime": m.remindertime,//"2011-10-06T08:00:00.000Z","task_start": m.task_start,//"2011-10-04T00:00:00.000Z","task_status": "0","urn:schemas:httpmail:importance": "1","urn:schemas:httpmail:subject": m.subject,//"Title_2","urn:schemas:httpmail:textdescription": "This is a task created by SmartCTMS on behalf of you"          ]    }}