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我试图实现用Java编写的Google Cloud Messaging CCS服务器,并且我已经从here下载了Smack库。我的问题是,为了使用这些导入语句,我在我的项目中放置了哪些文件?Google Cloud Messaging Smack Library
import java.io.IOException;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.ConnectionConfiguration.SecurityMode;
import org.jivesoftware.smack.ConnectionListener;
import org.jivesoftware.smack.PacketInterceptor;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.DefaultPacketExtension;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.jivesoftware.smack.provider.ProviderManager;
import org.jivesoftware.smack.util.StringUtils;
import org.xmlpull.v1.XmlPullParser;
import org.jivesoftware.smack.SmackException;
如果是的话,您可以这样做是否正确 – duindain