Question

当我运行以下代码时：

JICallBuilder callObject = new JICallBuilder ( true );
callObject.setOpnum ( 1 );

callObject.addInParamAsShort((short)direction.id (), JIFlags.FLAG_NULL);
callObject.addInParamAsString ( position, JIFlags.FLAG_REPRESENTATION_STRING_LPWSTR);

getCOMObject ().call ( callObject );

返回异常

16:05:13.348 [OPCSessionDestructor] DEBUG org.openscada.opc.lib.da.Server - Starting destruction of DCOM session
    at org.jinterop.dcom.core.JIComServer.call(JIComServer.java:999)
    at org.jinterop.dcom.core.JIComServer.call(JIComServer.java:945)
    at org.jinterop.dcom.core.JIComObjectImpl.call(JIComObjectImpl.java:271)
    at org.jinterop.dcom.core.JIComObjectImpl.call(JIComObjectImpl.java:156)
    at org.openscada.opc.dcom.da.impl.OPCBrowseServerAddressSpace.changePosition(OPCBrowseServerAddressSpace.java:83)
    at org.openscada.opc.lib.da.browser.TreeBrowser.moveToBranch(TreeBrowser.java:94)
    at org.openscada.opc.lib.da.browser.TreeBrowser.fill(TreeBrowser.java:176)
    at com.lakert.opc.OpcClient.connectServer(OpcClient.java:82)
    at com.lakert.opc.OpcListener.start(OpcListener.java:21)
    at com.lakert.opc.OpcListener.main(OpcListener.java:26)
Caused by: org.jinterop.dcom.common.JIRuntimeException: The parameter is incorrect. [0x80070057]

然后我发现该界面使用oleviewer

HRESULT _stdcall ChangeBrowsePosition(
                [in] tagOPCBROWSEDIRECTION dwBrowseDirection, 
                [in] LPWSTR szString);

typedef enum {
    OPC_BROWSE_UP = 1,
    OPC_BROWSE_DOWN = 2,
    OPC_BROWSE_TO = 3
} tagOPCBROWSEDIRECTION;

第一个参数是枚举类型，但是我在jinterop中找不到枚举类型，那么如何解决这个问题呢？谢谢！

jinterop调用失败[0x80070057]

0 个答案: