对于某些背景,这与 Passing IEnumerable Variables into .NET from ColdFusion 相关。 。我已更改代码以使用列表,并取得了进展,但在使用 .NET 和 ColdFusion 的简单数据类型以外的任何内容时,仍然遇到障碍。这就是当前的问题。
首先,我有一个包含以下 VideoWallEvent.cs 文件的 .dll:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace CoStar.Utilities.VideoWall
{
public class VideoWallEventActivityCollection
{
public string CountryCode { get; set; }
public DateTime ActivityDate { get; set; }
public List<VideoWallEvent> Events { get; set; }
}
public class VideoWallEvent
{
public string ID { get; set; }
public decimal Latitude { get; set; }
public decimal Longitude { get; set; }
public VideoWallEvent(string EventID, decimal EventLatitude, decimal EventLongitude)
{
ID = EventID;
Latitude = EventLatitude;
Longitude = EventLongitude;
}
}
}
我还按照上一个问题的说明使用 JNBProxyGUI.exe
生成了一个代理对象对象。鉴于上面的 dll 和我生成的代理 jar,我运行以下 ColdFusion 代码:
<cfset UtilitiesProxy = ExpandPath("UtilitiesProxy.jar") />
<cfset CoStarUtilities = ExpandPath("CoStar.Utilities.dll") />
<cfset Paths = ArrayToList([CoStarUtilities, UtilitiesProxy])>
<cfset theEvent = CreateObject(".net", "CoStar.Utilities.VideoWall.VideoWallEvent", Paths) />
<cfset eventList = CreateObject(".net","System.Collections.Generic.List`1", Paths).init(theEvent.getDotNetClass()) />
<cfset eventList.Add(theEvent.Init("1234", javacast("bigdecimal","30.2669444"), javacast("bigdecimal","-97.7427778"))) />
<cfset eventList.Add(theEvent.Init("1235", javacast("bigdecimal","30.2669444"), javacast("bigdecimal","-97.7427778"))) />
<cfset eventCollection = CreateObject(".net", "CoStar.Utilities.VideoWall.VideoWallEventActivityCollection", CoStarUtilities) />
<cfdump var="#eventList.ToArray()#" label="Items in eventList" />
<hr />
<cfdump var="#eventCollection#" label="eventCollection" />
<cfdump var="#eventList#" label="eventList" />
<cfset eventCollection.Set_Events(eventList) />
这给了我以下输出:
正如您从屏幕截图中看到的,我可以成功地将项目添加到列表中,我可以获得需要 List 对象的 ActivityCollection 对象,但是调用 Set_Events
方法并传递 List 会抛出以下错误:
The Set_Events method was not found.
Either there are no methods with the specified method name and argument types
or the Set_Events method is overloaded with argument types that ColdFusion cannot
decipher reliably. ColdFusion found 0 methods that match the provided arguments.
If this is a Java object and you verified that the method exists, use the javacast
function to reduce ambiguity.
The error occurred in C:/inetpub/scribble/VideoWall/index.cfm: line 17
15 : <cfdump var="#eventList#" label="eventList" />
16 :
17 : <cfset eventCollection.Set_Events(eventList) />
所以我现在需要帮助弄清楚如何正确地将这个列表推送到 Set_Events() 方法中。
最佳答案
(来自评论)
不管你信不信,这只是一个程序集路径问题。您必须使用汇编列表中的两个文件,而不仅仅是 CoStarUtilities
,即:
<cfset eventCollection = CreateObject(".net"
, "CoStar.Utilities.VideoWall.VideoWallEventActivityCollection"
, Paths ) />
关于.net - 使用 ColdFusion 中的列表调用 .NET 方法时未找到方法,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16818747/