调用登录接口显示链接错误

返回的错误信息
{"InnerExWrapper":null,"ClassName":"Kingdee.BOS.ServiceFacade.ServiceException","Message":"URL：~/K3Cloud/Kingdee.BOS.WebApi.ServicesStub.AuthService.ValidateUser.common.kdsvc不正确","Data":null,"InnerException":null,"HelpURL":null,"StackTraceString":" at Kingdee.BOS.ServiceFacade.KDServiceFx.KDSVCHandler.ExecuteRequest(WebContext ctx, RequestExtractor requestExtractor)\r\n at Kingdee.BOS.ServiceFacade.KDServiceFx.KDSVCHandler.ProcessRequestInternal(WebContext webCtx, RequestExtractor requestExtractor)","RemoteStackTraceString":null,"RemoteStackIndex":0,"ExceptionMethod":"8\nExecuteRequest\nKingdee.BOS.ServiceFacade.KDServiceFx, Version=6.0.413.1, Culture=neutral, PublicKeyToken=null\nKingdee.BOS.ServiceFacade.KDServiceFx.KDSVCHandler\nVoid ExecuteRequest(Kingdee.BOS.ServiceFacade.KDServiceFx.WebContext, Kingdee.BOS.ServiceFacade.KDServiceFx.RequestExtractor)","HResult":-2147467259,"Source":"Kingdee.BOS.ServiceFacade.KDServiceFx","WatsonBuckets":null,"_httpCode":404}
请求的参数：{"format":1,"useragent":"ApiClient","rid":"{C7D5F5A1-0D7F-2A2F-7180-633D381D58A8}","parameters":["账套ID","用户","密码","2052"],"timestamp":"2017-03-28","v":"1.0"}

请求的链接 ：
http://www.xxx.cn/K3Cloud/K3Cloud/Kingdee.BOS.WebApi.ServicesStub.AuthService.ValidateUser.common.kdsvc

开发的语法： PHP请求的方法： CURL
错误信息： URL：~/K3Cloud/Kingdee.BOS.WebApi.ServicesStub.AuthService.ValidateUser.common.kdsvc不正确