APP Key：
177697xxxxx
APPSecret：
5620f6106xxxxxaf9dd456e41axxxxxx

package steven.weibo;

import javax.swing.JFrame;

import weibo4j.Status;
import weibo4j.Weibo;

public class UpdateWeibo extends JFrame {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  System.setProperty("weibo4j.oauth.consumerKey", Weibo.CONSUMER_KEY);
  System.setProperty("weibo4j.oauth.consumerSecret", Weibo.CONSUMER_SECRET);
  try {
  Weibo weibo = getWeibo(true,args);
  Status status = weibo.updateStatus("测试发送微博");
  System.out.println(status.getId() + " : "+ status.getText()+" "+status.getCreatedAt());
  } catch (Exception e) {
  e.printStackTrace();
  }

 }
 private static Weibo getWeibo(boolean isOauth,String ... args) {
  System.out.println("1");
   Weibo weibo = new Weibo();
   System.out.println("2");
   if(isOauth) {//oauth验证方式 args[0]:访问的token；args[1]:访问的密匙
    weibo.setToken("177697xxxxx", "5620f6106xxxxxaf9dd456e41axxxxxx");
   }else {//用户登录方式
       weibo.setUserId("fanjiaxing@hotmail.com");//用户名/ID
      weibo.setPassword("xxxxxxxx");//密码
   }
   return weibo;
  }

}

1
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/httpclient/methods/RequestEntity
 at weibo4j.WeiboSupport.<init>(WeiboSupport.java:35)
 at weibo4j.WeiboSupport.<init>(WeiboSupport.java:40)
 at weibo4j.Weibo.<init>(Weibo.java:2430)
 at steven.weibo.UpdateWeibo.getWeibo(UpdateWeibo.java:28)
 at steven.weibo.UpdateWeibo.main(UpdateWeibo.java:18)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.httpclient.methods.RequestEntity
 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)
 ... 5 more

请问在

System.out.println("1");
   Weibo weibo = new Weibo();为什么报错，求懂的人指点一下！
在线等！