Java EWS 抛出 NoClassDefFounderror

Question

我想阅读 Outlook 日历。所以我首先开始尝试连接到服务器。我找到了 http://code.msdn.microsoft.com/exchange-ews-java-api-12-1a5a1143并只想获得连接并尝试一下。

我找到了一个例子并尝试了这个:

import microsoft.exchange.webservices.data.*;
...
public void test(){     
    ExchangeService es = new ExchangeService();
    ExchangeCredentials credentials = new WebCredentials("user", "Password");
}

它因 Exchange 服务而崩溃:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/httpclient/HttpConnectionManager
at ExchangeTest.test(ExchangeTest.java:15)
at Window.main(Window.java:19)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.httpclient.HttpConnectionManager
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 2 more

我尝试导入一个库，但没有得到正确的库，或者错误是其他原因。你能告诉我我需要哪个图书馆或我在哪里/如何修复它吗？谢谢。

我使用的是 Win7。

Answer 1

你需要这个图书馆 The Commons HttpClient并且您必须将此库添加到项目的构建路径中。