twitter4j
谁有twitter4j的编程经验。我下载的twitter4j-2.2.0.zip
里面的代码要怎么运行，我已经包含了。jar文件把它里面的.java文件拖动到eclipse里面可是还是不能运行，要怎么才能运行。比如这个例子

/*
 * Copyright 2007 Yusuke Yamamoto
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */



import twitter4j.AccountSettings;
import twitter4j.Location;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;

/**
 * Gets account settings.
 *
 * @author Yusuke Yamamoto - yusuke at mac.com
 */
public final class GetAccountSettings {
    /**
     * Usage: java twitter4j.examples.account.GetAccountSettings
     *
     * @param args
     */
    public static void main(String[] args) {
        try {
            Twitter twitter = new TwitterFactory().getInstance();
            AccountSettings settings = twitter.getAccountSettings();
            System.out.println("Sleep time enabled: " + settings.isSleepTimeEnabled());
            System.out.println("Sleep end time: " + settings.getSleepEndTime());
            System.out.println("Sleep start time: " + settings.getSleepStartTime());
            System.out.println("Geo enabled: " + settings.isGeoEnabled());
            System.out.println("Listing trend locations:");
            Location[] locations = settings.getTrendLocations();
            for (Location location : locations) {
                System.out.println(" " + location.getName());
            }
            System.exit(0);
        } catch (TwitterException te) { 
 
            te.printStackTrace();
            System.out.println("Failed to get account settings: " + te.getMessage());
            System.exit(-1);
        }
    }
}

要怎么运行，一运行就提示
Exception in thread "main" java.lang.IllegalStateException: Authentication credentials are missing. See http://twitter4j.org/configuration.html for the detail.
at twitter4j.TwitterBaseImpl.ensureAuthorizationEnabled(TwitterBaseImpl.java:205)
at twitter4j.TwitterImpl.getAccountSettings(TwitterImpl.java:1309)
at GetAccountSettings.main(GetAccountSettings.java:39)

[最优解释]
这上面写了用法：
http://twitter4j.org/configuration.html
[其他解释]
意思是你没有管理证书
[其他解释]
http://blog.csdn.net/zhujing244/article/details/6682440
[其他解释]
话说天朝能上twitter么
[其他解释]
我不在国内
[其他解释]
就缺这一步想要的
twitter.getAccountSettings();

要运行除了jar包以外，可能还需要帐号之类相关信息，这个jar包用法没有说明吗？
[其他解释]

引用:

这上面写了用法：
http://twitter4j.org/configuration.html

没能看明白，有直接的解决方法么？
[其他解释]

引用:

引用:
这上面写了用法： http://twitter4j.org/configuration.html
没能看明白，有直接的解决方法么？

Exception in thread "main" java.lang.IllegalStateException: Authentication credentials are missing. See http://twitter4j.org/configuration.html for the detail.
at twitter4j.TwitterBaseImpl.ensureAuthorizationEnabled(TwitterBaseImpl.java:205)


关键是它要用这个jar包中方法时发现认证信息丢失，可能是jar包非法，或者有关jar包用法问题