摘要：同步锁convert = new Thread(){ public void run() { synchronized (LOCK) { while (true) { try { //doconvert(); } catch (ExceptionAbstract e1) { e1.printStackTrac... 阅读全文

摘要：import java.io.IOException; import java.net.SocketTimeoutException; import java.nio.charset.Charset; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.List; import java.util.Map; import javax.net.ssl.SSLC... 阅读全文

摘要：public static void mkdirs(String path) { File file = new File(path); if (!file.exists()) { file.mkdirs(); } }文件夹是否存在public static void download(String urlString, String filename) throws Exception { URL url = new URL(urlString); URLConnection con = url.openConnection(); I... 阅读全文