摘要：public class QuotationEngine { private static QuotationEngine instance;// 对象实例 private QuotationEngine() { } public static QuotationEngine getInstance() { if (null == instance) { synchronized (QuotationEngine.class) { if (null == instance) { ... 阅读全文

摘要：public static byte[] convertToByteArray(Object obj) throws IOException { ObjectOutputStream os = null; ByteArrayOutputStream byteStream = new ByteArrayOutputStream(5000); os = new ObjectOutputStream(new BufferedOutputStream(byteStream)); os.flush(); os.writeObject(... 阅读全文

摘要：1、socket是发动机，提供了具体通信的方式。而http是在发动机基础上封装的轿车。2、socket一旦建立连接，可互通往来。而http通信必须先request再response。3、socket通信内容格式自由。而http协议有严格的协议规范格式。 阅读全文