Question

我目前正在尝试使用EWS Java API连接到我们公司的Exchange服务器。不幸的是，当尝试执行任何操作（手动使用setUrl后自动发现或其他操作）时，我收到以下错误：

Apr 17, 2013 7:57:10 AM org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection refused: connect
Apr 17, 2013 7:57:10 AM org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: Retrying request
Apr 17, 2013 7:57:11 AM org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection refused: connect
Apr 17, 2013 7:57:11 AM org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: Retrying request
Apr 17, 2013 7:57:12 AM org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection refused: connect
Apr 17, 2013 7:57:12 AM org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: Retrying request
Exception in thread "main" microsoft.exchange.webservices.data.ServiceRequestException: The request failed. Connection refused: connect
    at microsoft.exchange.webservices.data.ServiceRequestBase.getEwsHttpWebResponse(Unknown Source)
    at microsoft.exchange.webservices.data.ServiceRequestBase.validateAndEmitRequest(Unknown Source)
    at microsoft.exchange.webservices.data.SimpleServiceRequestBase.internalExecute(Unknown Source)
    at microsoft.exchange.webservices.data.MultiResponseServiceRequest.execute(Unknown Source)
    at microsoft.exchange.webservices.data.ExchangeService.bindToFolder(Unknown Source)
    at microsoft.exchange.webservices.data.ExchangeService.bindToFolder(Unknown Source)
    at microsoft.exchange.webservices.data.CalendarFolder.bind(Unknown Source)
    at microsoft.exchange.webservices.data.CalendarFolder.bind(Unknown Source)
    at er.dream.tgif.outlook.OutlookTest.findAppointments(OutlookTest.java:59)
    at er.dream.tgif.outlook.OutlookTest.main(OutlookTest.java:45)
Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:75)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at microsoft.exchange.webservices.data.EwsSSLProtocolSocketFactory.createSocket(Unknown Source)
    at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
    at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)
    at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
    at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
    at microsoft.exchange.webservices.data.HttpClientWebRequest.executeRequest(Unknown Source)
    ... 10 more

我尝试使用我的凭据登录到Exchange服务器Web界面，这很正常。假设它可能与SSL问题有关，我还尝试实现一个虚拟的TrustManager并将其设置为HttpsUrlConnections的默认值。

不幸的是，这没有帮助，错误仍然存在。

一个值得注意的事实：在我的Outlook中，我可以看到Exchange服务器配置为使用代理服务器和特定的SSL URL连接到它。（代理身份验证设置为NTLM）我不太确定如何在编码中反映这一点。

这可能导致异常，还是我在这里看另一个问题？

Answer 1

Java EWS API的发行说明：

在Windows 7操作系统（32位）上运行时，如果应用程序生成以下错误：错误：请求失败。无法获得响应codejava.io.IOException：身份验证失败

因此，如果是这种情况，请参阅随EWS java Api提供的发行说明（和/或gooole这个确切的句子以找回它们）。

请确保使用正确的Web服务端点和端口，因为您正在使用的套接字似乎已关闭（连接被拒绝）。这应该是这样的：

"https://YOURDOMAIN.com/EWS/Exchange.asmx"

this other StackOverflow question中提到的代码对我有用（Exchange 2010 + NTLM身份验证方案）。

EWS Java 1.2 - 无法连接到公司Exchange Server

1 个答案: