【发布时间】：2013-08-07 06:25:20
【问题描述】：
我一直无法找到解决我的问题的解决方案，所以我要打开一个新主题。
Utgard (http://openscada.org/projects/utgard) 对我来说似乎是一个非常有用的工具。在这个阶段，我只想能够通过 Eclipse 在 Windows 8 操作系统上本地访问 TOP OPC 服务器。但是，当尝试运行他们的教程时，我最终会遇到“访问被拒绝”。我不认为我在用户名、密码等方面有任何错误。
Exele OPC DA 测试客户端不返回任何错误。我可以连接、检索和重写值。
请注意，我是 OPC 和 OpenSCADA 的新手。任何帮助将不胜感激。
package org.openscada.opc.tutorial;
import java.util.concurrent.Executors;
import org.jinterop.dcom.common.JIException;
import org.openscada.opc.lib.common.ConnectionInformation;
import org.openscada.opc.lib.da.AccessBase;
import org.openscada.opc.lib.da.DataCallback;
import org.openscada.opc.lib.da.Item;
import org.openscada.opc.lib.da.ItemState;
import org.openscada.opc.lib.da.Server;
import org.openscada.opc.lib.da.SyncAccess;
public class UtgardTutorial1 {
public static void main(String[] args) throws Exception {
// create connection information
final ConnectionInformation ci = new ConnectionInformation();
//final ConnectionInformation connectionInformation = new ConnectionInformation();
ci.setHost("127.0.0.1");
//ci.setDomain("");
ci.setUser("Me");
ci.setPassword("Password");
ci.setProgId("SWToolbox.TOPServer.V5");
//ci.setClsid("680DFBF7-C92D-484D-84BE-06DC3DECCD68"); // if ProgId is not working, try it using the Clsid instead
// create an id for the tag you want to retrieve
final String itemId = "_System._Time_Second";
// create a new server
final Server server = new Server(ci, Executors.newSingleThreadScheduledExecutor());
//final Server serverServer = new Server(connectionInformation, Executor.newSingleThreadSchedulesExecutor);
try {
// connect to server
server.connect();
// add sync access, poll every 500 ms
final AccessBase access = new SyncAccess(server, 500);
access.addItem(itemId, new DataCallback() {
@Override
public void changed(Item item, ItemState state) {
System.out.println(state);
}
});
// start reading
access.bind();
// wait a little bit
Thread.sleep(10 * 1000);
// stop reading
access.unbind();
} catch (final JIException e) {
System.out.println(String.format("%08X: %s", e.getErrorCode(), server.getErrorMessage(e.getErrorCode())));
}
}
}
错误堆栈跟踪：
INFO org.openscada.opc.lib.da.Server - Failed to connect to server
org.jinterop.dcom.common.JIException: Access is denied, please check whether the [domain-username-password] are correct. Also, if not already done please check the GETTING STARTED and FAQ sections in readme.htm. They provide information on how to correctly configure the Windows machine for DCOM access, so as to avoid such exceptions. [0x00000005]
at org.jinterop.winreg.smb.JIWinRegStub.winreg_OpenKey(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.jinterop.dcom.core.JIProgId.getIdFromWinReg(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.jinterop.dcom.core.JIProgId.getCorrespondingCLSID(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.jinterop.dcom.core.JIComServer.<init>(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.openscada.opc.lib.da.Server.connect(Server.java:123) ~[org.openscada.opc.lib_1.0.0.201303051455.jar:na]
at org.openscada.opc.tutorial.UtgardTutorial1.main(UtgardTutorial1.java:32) [bin/:na]
Caused by: org.jinterop.dcom.common.JIRuntimeException: Access is denied, please check whether the [domain-username-password] are correct. Also, if not already done please check the GETTING STARTED and FAQ sections in readme.htm. They provide information on how to correctly configure the Windows machine for DCOM access, so as to avoid such exceptions. [0x00000005]
at org.jinterop.winreg.IJIWinReg$openKey.read(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at ndr.NdrObject.decode(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
at rpc.ConnectionOrientedEndpoint.call(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
at rpc.Stub.call(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
【问题讨论】：
-
你检查过 OPC Server 的 DCOM 设置了吗？
-
嗨拍手，感谢您的回复！是的，我根据 Internet 上许多不同的文章多次检查了 DCOM 设置。我想他们不是问题。只有在我的 IDE 中才会出现这些错误。
-
嗯，好的，祝你好运。
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嗨，拍手，事实证明你是对的。 （我将我更改的 DCOM 设置发布为对 Jouni Aro 的评论。）再次感谢！
-
嘿，我也是使用 utgard 的新手。我有一个无需用户名和密码即可连接的 python 实用程序（openOPC）。但我想在java中复制相同的内容，我正在使用utgard，我应该使用什么用户名和密码。我尝试使用我的机器登录用户名和密码，但我收到错误的用户名或身份验证错误