<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.4.2-rc) on Fri Jun 13 00:14:24 PDT 2003 --> <TITLE> SocketImpl (Java 2 Platform SE v1.4.2) </TITLE> <META NAME="keywords" CONTENT="java.net.SocketImpl class"> <META NAME="keywords" CONTENT="fd"> <META NAME="keywords" CONTENT="address"> <META NAME="keywords" CONTENT="port"> <META NAME="keywords" CONTENT="localport"> <META NAME="keywords" CONTENT="create()"> <META NAME="keywords" CONTENT="connect()"> <META NAME="keywords" CONTENT="bind()"> <META NAME="keywords" CONTENT="listen()"> <META NAME="keywords" CONTENT="accept()"> <META NAME="keywords" CONTENT="getInputStream()"> <META NAME="keywords" CONTENT="getOutputStream()"> <META NAME="keywords" CONTENT="available()"> <META NAME="keywords" CONTENT="close()"> <META NAME="keywords" CONTENT="shutdownInput()"> <META NAME="keywords" CONTENT="shutdownOutput()"> <META NAME="keywords" CONTENT="getFileDescriptor()"> <META NAME="keywords" CONTENT="getInetAddress()"> <META NAME="keywords" CONTENT="getPort()"> <META NAME="keywords" CONTENT="supportsUrgentData()"> <META NAME="keywords" CONTENT="sendUrgentData()"> <META NAME="keywords" CONTENT="getLocalPort()"> <META NAME="keywords" CONTENT="toString()"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { parent.document.title="SocketImpl (Java 2 Platform SE v1.4.2)"; } </SCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/SocketImpl.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> <b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.4.2</b></EM> </TD> </TR>
<TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/net/SocketAddress.html" title="class in java.net"><B>PREV CLASS</B></A> <A HREF="../../java/net/SocketPermission.html" title="class in java.net"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="SocketImpl.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> java.net</FONT> <BR> Class SocketImpl</H2> <PRE> <A HREF="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by"><B>java.net.SocketImpl</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../java/net/SocketOptions.html" title="interface in java.net">SocketOptions</A></DD> </DL> <HR> <DL> <DT>public abstract class <B>SocketImpl</B><DT>extends <A HREF="../../java/lang/Object.html" title="class in java.lang">Object</A><DT>implements <A HREF="../../java/net/SocketOptions.html" title="interface in java.net">SocketOptions</A></DL> <P> The abstract class <code>SocketImpl</code> is a common superclass of all classes that actually implement sockets. It is used to create both client and server sockets. 抽象类SocketImpl是所有实际实现套接字的类的父类,既用于创建客户端,也用于创建服务器。 <p> A "plain" socket implements these methods exactly as described, without attempting to go through a firewall or proxy. 空白套接字实现了下面描述的方法,并不考虑通过防火墙或代理服务器。 <P> <P> <DL> <DT><B>Since:</B></DT> <DD>JDK1.0</DD> </DL> <HR> <P> <!-- ======== NESTED CLASS SUMMARY ======== --> <!-- =========== FIELD SUMMARY =========== -->
<A NAME="field_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=2><FONT SIZE="+2"> <B>Field Summary</B></FONT></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#address">address</A></B></CODE> <BR> The IP address of the remote end of this socket. 此套接字远端的IP地址。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="../../java/io/FileDescriptor.html" title="class in java.io">FileDescriptor</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#fd">fd</A></B></CODE> <BR> The file descriptor object for this socket. 此套接字的文件描述符对象。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#localport">localport</A></B></CODE> <BR> The local port number to which this socket is connected. 此套接字连接的本地端口号。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#port">port</A></B></CODE> <BR> The port number on the remote host to which this socket is connected. 此套接字连接的远端端口号。</TD> </TR> </TABLE> <A NAME="fields_inherited_from_class_java.net.SocketOptions"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TD><B>Fields inherited from interface java.net.<A HREF="../../java/net/SocketOptions.html" title="interface in java.net">SocketOptions</A></B></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../java/net/SocketOptions.html#IP_MULTICAST_IF">IP_MULTICAST_IF</A>, <A HREF="../../java/net/SocketOptions.html#IP_MULTICAST_IF2">IP_MULTICAST_IF2</A>, <A HREF="../../java/net/SocketOptions.html#IP_MULTICAST_LOOP">IP_MULTICAST_LOOP</A>, <A HREF="../../java/net/SocketOptions.html#IP_TOS">IP_TOS</A>, <A HREF="../../java/net/SocketOptions.html#SO_BINDADDR">SO_BINDADDR</A>, <A HREF="../../java/net/SocketOptions.html#SO_BROADCAST">SO_BROADCAST</A>, <A HREF="../../java/net/SocketOptions.html#SO_KEEPALIVE">SO_KEEPALIVE</A>, <A HREF="../../java/net/SocketOptions.html#SO_LINGER">SO_LINGER</A>, <A HREF="../../java/net/SocketOptions.html#SO_OOBINLINE">SO_OOBINLINE</A>, <A HREF="../../java/net/SocketOptions.html#SO_RCVBUF">SO_RCVBUF</A>, <A HREF="../../java/net/SocketOptions.html#SO_REUSEADDR">SO_REUSEADDR</A>, <A HREF="../../java/net/SocketOptions.html#SO_SNDBUF">SO_SNDBUF</A>, <A HREF="../../java/net/SocketOptions.html#SO_TIMEOUT">SO_TIMEOUT</A>, <A HREF="../../java/net/SocketOptions.html#TCP_NODELAY">TCP_NODELAY</A></CODE></TD> </TR> </TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=2><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#SocketImpl()">SocketImpl</A></B>()</CODE> <BR> </TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=2><FONT SIZE="+2"> <B>Method Summary</B></FONT></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#accept(java.net.SocketImpl)">accept</A></B>(<A HREF="../../java/net/SocketImpl.html" title="class in java.net">SocketImpl</A> s)</CODE> <BR> Accepts a connection. 接收连接。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#available()">available</A></B>()</CODE> <BR> Returns the number of bytes that can be read from this socket without blocking. 返回从未阻塞的套接字读取的字节数。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#bind(java.net.InetAddress, int)">bind</A></B>(<A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A> host, int port)</CODE> <BR> Binds this socket to the specified port number on the specified host. 将套接字绑定到指定的端口和地址。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#close()">close</A></B>()</CODE> <BR> Closes this socket. 关闭套接字。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#connect(java.net.InetAddress, int)">connect</A></B>(<A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A> address, int port)</CODE> <BR> Connects this socket to the specified port number on the specified host. 将套接字连接到指定主机的指定端口。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#connect(java.net.SocketAddress, int)">connect</A></B>(<A HREF="../../java/net/SocketAddress.html" title="class in java.net">SocketAddress</A> address, int timeout)</CODE> <BR> Connects this socket to the specified port number on the specified host. 将套接字连接到指定主机的指定端口。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#connect(java.lang.String, int)">connect</A></B>(<A HREF="../../java/lang/String.html" title="class in java.lang">String</A> host, int port)</CODE> <BR> Connects this socket to the specified port on the named host. 将套接字连接到指定名称主机的指定端口。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#create(boolean)">create</A></B>(boolean stream)</CODE> <BR> Creates either a stream or a datagram socket. 创建数据流或数据报套接字。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="../../java/io/FileDescriptor.html" title="class in java.io">FileDescriptor</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#getFileDescriptor()">getFileDescriptor</A></B>()</CODE> <BR> Returns the value of this socket's <code>fd</code> field. 返回此套接字fd成员变量的值。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected <A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#getInetAddress()">getInetAddress</A></B>()</CODE> <BR> Returns the value of this socket's <code>address</code> field. 返回此套接字address成员变量的值。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract <A HREF="../../java/io/InputStream.html" title="class in java.io">InputStream</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#getInputStream()">getInputStream</A></B>()</CODE> <BR> Returns an input stream for this socket. 返回此套接字的输入流。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#getLocalPort()">getLocalPort</A></B>()</CODE> <BR> Returns the value of this socket's <code>localport</code> field. 返回此套接字localport成员变量的值。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract <A HREF="../../java/io/OutputStream.html" title="class in java.io">OutputStream</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#getOutputStream()">getOutputStream</A></B>()</CODE> <BR> Returns an output stream for this socket. 返回此套接字的输出流。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#getPort()">getPort</A></B>()</CODE> <BR> Returns the value of this socket's <code>port</code> field. 返回此套接字port成员变量的值。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#listen(int)">listen</A></B>(int backlog)</CODE> <BR> Sets the maximum queue length for incoming connection indications (a request to connect) to the <code>count</code> argument. 将呼入连接指示(连接请求)的最大队列长度设置为backlog参数值。如果在队列已满情况下连接指示到达,连接请求被拒绝。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected abstract void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#sendUrgentData(int)">sendUrgentData</A></B>(int data)</CODE> <BR> Send one byte of urgent data on the socket. 在套接字上发送一个字节的紧急数据。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#shutdownInput()">shutdownInput</A></B>()</CODE> <BR> Places the input stream for this socket at "end of stream". 将套接字的输入流设置为位于“数据流末”。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#shutdownOutput()">shutdownOutput</A></B>()</CODE> <BR> Disables the output stream for this socket. 取消此套接字的输出流。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>protected boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#supportsUrgentData()">supportsUrgentData</A></B>()</CODE> <BR> Returns whether or not this SocketImpl supports sending urgent data. 判断此SocketImpl是否支持发送紧急数据。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../java/lang/String.html" title="class in java.lang">String</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../java/net/SocketImpl.html#toString()">toString</A></B>()</CODE> <BR> Returns the address and port of this socket as a <code>String</code>. 以字符串的形式返回套接字的地址和端口。</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html" title="class in java.lang">Object</A></B></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../java/lang/Object.html#clone()">clone</A>, <A HREF="../../java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.net.SocketOptions"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TD><B>Methods inherited from interface java.net.<A HREF="../../java/net/SocketOptions.html" title="interface in java.net">SocketOptions</A></B></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../java/net/SocketOptions.html#getOption(int)">getOption</A>, <A HREF="../../java/net/SocketOptions.html#setOption(int, java.lang.Object)">setOption</A></CODE></TD> </TR> </TABLE> <P> <!-- ============ FIELD DETAIL =========== --> <A NAME="field_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=1><FONT SIZE="+2"> <B>Field Detail</B></FONT></TD> </TR> </TABLE> <A NAME="fd"><!-- --></A><H3> fd</H3> <PRE> protected <A HREF="../../java/io/FileDescriptor.html" title="class in java.io">FileDescriptor</A> <B>fd</B></PRE> <DL> <DD>The file descriptor object for this socket. 此套接字的文件描述符对象。 <P> <DL> </DL> </DL> <HR> <A NAME="address"><!-- --></A><H3> address</H3> <PRE> protected <A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A> <B>address</B></PRE> <DL> <DD>The IP address of the remote end of this socket. 此套接字远端的IP地址。 <P> <DL> </DL> </DL> <HR> <A NAME="port"><!-- --></A><H3> port</H3> <PRE> protected int <B>port</B></PRE> <DL> <DD>The port number on the remote host to which this socket is connected. 此套接字连接的远端端口号。 <P> <DL> </DL> </DL> <HR> <A NAME="localport"><!-- --></A><H3> localport</H3> <PRE> protected int <B>localport</B></PRE> <DL> <DD>The local port number to which this socket is connected. 此套接字连接的本地端口号。 <P> <DL> </DL> </DL> <!-- ========= CONSTRUCTOR DETAIL ======== --> <A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=1><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TD> </TR> </TABLE> <A NAME="SocketImpl()"><!-- --></A><H3> SocketImpl</H3> <PRE> public <B>SocketImpl</B>()</PRE> <DL> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=1><FONT SIZE="+2"> <B>Method Detail</B></FONT></TD> </TR> </TABLE> <A NAME="create(boolean)"><!-- --></A><H3> create</H3> <PRE> protected abstract void <B>create</B>(boolean stream) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Creates either a stream or a datagram socket. 创建数据流或数据报套接字。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>stream</CODE> - if <code>true</code>, create a stream socket; otherwise, create a datagram socket. 如果为true,创建流套接字,否则创建数据报套接字。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs while creating the socket. 当创建套接字时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="connect(java.lang.String, int)"><!-- --></A><H3> connect</H3> <PRE> protected abstract void <B>connect</B>(<A HREF="../../java/lang/String.html" title="class in java.lang">String</A> host, int port) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Connects this socket to the specified port on the named host. 将套接字连接到指定名称主机的指定端口。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>host</CODE> - the name of the remote host. 远程主机的IP地址。<DD><CODE>port</CODE> - the port number. 端口号。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when connecting to the remote host. 当连接远程主机时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="connect(java.net.InetAddress, int)"><!-- --></A><H3> connect</H3> <PRE> protected abstract void <B>connect</B>(<A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A> address, int port) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Connects this socket to the specified port number on the specified host. 将套接字连接到指定主机的指定端口。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>address</CODE> - the IP address of the remote host. 远程主机的IP地址。<DD><CODE>port</CODE> - the port number. 端口号。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when attempting a connection. 当尝试连接时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="connect(java.net.SocketAddress, int)"><!-- --></A><H3> connect</H3> <PRE> protected abstract void <B>connect</B>(<A HREF="../../java/net/SocketAddress.html" title="class in java.net">SocketAddress</A> address, int timeout) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Connects this socket to the specified port number on the specified host. A timeout of zero is interpreted as an infinite timeout. The connection will then block until established or an error occurs. 将套接字连接到指定主机的指定端口。延时值为0被解释为无限延时,连接将阻塞直到建立或错误发生。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>address</CODE> - the Socket address of the remote host. 远程主机的Socket地址。<DD><CODE>timeout</CODE> - the timeout value, in milliseconds, or zero for no timeout. <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when attempting a connection. 当尝试连接时发生I/O错误则抛出。<DT><B>Since:</B></DT> <DD>1.4</DD> </DL> </DD> </DL> <HR> <A NAME="bind(java.net.InetAddress, int)"><!-- --></A><H3> bind</H3> <PRE> protected abstract void <B>bind</B>(<A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A> host, int port) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Binds this socket to the specified port number on the specified host. 将套接字绑定到指定的端口和地址。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>host</CODE> - the IP address of the remote host. 远程主机的IP地址。 远程主机的IP地址。<DD><CODE>port</CODE> - the port number. 端口号。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when binding this socket. 当绑定套接字时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="listen(int)"><!-- --></A><H3> listen</H3> <PRE> protected abstract void <B>listen</B>(int backlog) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Sets the maximum queue length for incoming connection indications (a request to connect) to the <code>count</code> argument. If a connection indication arrives when the queue is full, the connection is refused. 将呼入连接指示(连接请求)的最大队列长度设置为backlog参数值。如果在队列已满情况下连接指示到达,连接请求被拒绝。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>backlog</CODE> - the maximum length of the queue. 队列的最大长度。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when creating the queue. 当创建队列时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="accept(java.net.SocketImpl)"><!-- --></A><H3> accept</H3> <PRE> protected abstract void <B>accept</B>(<A HREF="../../java/net/SocketImpl.html" title="class in java.net">SocketImpl</A> s) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Accepts a connection. 接收连接。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>s</CODE> - the accepted connection. 接收的连接。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when accepting the connection. 当接收连接时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="getInputStream()"><!-- --></A><H3> getInputStream</H3> <PRE> protected abstract <A HREF="../../java/io/InputStream.html" title="class in java.io">InputStream</A> <B>getInputStream</B>() throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Returns an input stream for this socket. 返回此套接字的输入流。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>a stream for reading from this socket. 从此套接字读取的流。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when creating the input stream. 当创建输入流时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="getOutputStream()"><!-- --></A><H3> getOutputStream</H3> <PRE> protected abstract <A HREF="../../java/io/OutputStream.html" title="class in java.io">OutputStream</A> <B>getOutputStream</B>() throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Returns an output stream for this socket. 返回此套接字的输出流。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>an output stream for writing to this socket. 写入此套接字的流。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when creating the output stream. 当创建输出流时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="available()"><!-- --></A><H3> available</H3> <PRE> protected abstract int <B>available</B>() throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Returns the number of bytes that can be read from this socket without blocking. 返回从未阻塞的套接字读取的字节数。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the number of bytes that can be read from this socket without blocking. 从未阻塞的套接字读取的字节数。 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when determining the number of bytes available. 当确定可用的字节数时发生I/O错误则抛出。</DL> </DD> </DL> <HR> <A NAME="close()"><!-- --></A><H3> close</H3> <PRE> protected abstract void <B>close</B>() throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Closes this socket. 关闭套接字。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when closing this socket.</DL> </DD> </DL> <HR> <A NAME="shutdownInput()"><!-- --></A><H3> shutdownInput</H3> <PRE> protected void <B>shutdownInput</B>() throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Places the input stream for this socket at "end of stream". Any data sent to this socket is acknowledged and then silently discarded. If you read from a socket input stream after invoking shutdownInput() on the socket, the stream will return EOF. 将套接字的输入流设置为位于“数据流末”。发送到套接字输入流端的任何数据将被确认且丢弃。 如果在调用shutdownInput()方法后从套接字输入流中读取,流将返回EOF。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when shutting down this socket. 当关闭套接字时发生I/O错误则抛出。<DT><B>See Also:</B><DD><A HREF="../../java/net/Socket.html#shutdownOutput()"><CODE>Socket.shutdownOutput()</CODE></A>, <A HREF="../../java/net/Socket.html#close()"><CODE>Socket.close()</CODE></A>, <A HREF="../../java/net/Socket.html#setSoLinger(boolean, int)"><CODE>Socket.setSoLinger(boolean, int)</CODE></A></DL> </DD> </DL> <HR> <A NAME="shutdownOutput()"><!-- --></A><H3> shutdownOutput</H3> <PRE> protected void <B>shutdownOutput</B>() throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Disables the output stream for this socket. For a TCP socket, any previously written data will be sent followed by TCP's normal connection termination sequence. If you write to a socket output stream after invoking shutdownOutput() on the socket, the stream will throw an IOException. 取消此套接字的输出流。对于TCP套接字,任何已写入的数据被发送后,将正常关闭TCP连接。 如果在调用shutdownOutput()后向套接字输出流写入,流将抛出IOException。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if an I/O error occurs when shutting down this socket. 当关闭套接字时发生I/O错误则抛出。<DT><B>See Also:</B><DD><A HREF="../../java/net/Socket.html#shutdownInput()"><CODE>Socket.shutdownInput()</CODE></A>, <A HREF="../../java/net/Socket.html#close()"><CODE>Socket.close()</CODE></A>, <A HREF="../../java/net/Socket.html#setSoLinger(boolean, int)"><CODE>Socket.setSoLinger(boolean, int)</CODE></A></DL> </DD> </DL> <HR> <A NAME="getFileDescriptor()"><!-- --></A><H3> getFileDescriptor</H3> <PRE> protected <A HREF="../../java/io/FileDescriptor.html" title="class in java.io">FileDescriptor</A> <B>getFileDescriptor</B>()</PRE> <DL> <DD>Returns the value of this socket's <code>fd</code> field. 返回此套接字fd成员变量的值。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the value of this socket's <code>fd</code> field. 此套接字fd成员变量的值。<DT><B>See Also:</B><DD><A HREF="../../java/net/SocketImpl.html#fd"><CODE>fd</CODE></A></DL> </DD> </DL> <HR> <A NAME="getInetAddress()"><!-- --></A><H3> getInetAddress</H3> <PRE> protected <A HREF="../../java/net/InetAddress.html" title="class in java.net">InetAddress</A> <B>getInetAddress</B>()</PRE> <DL> <DD>Returns the value of this socket's <code>address</code> field. 返回此套接字address成员变量的值。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the value of this socket's <code>address</code> field. 此套接字address成员变量的值。<DT><B>See Also:</B><DD><A HREF="../../java/net/SocketImpl.html#address"><CODE>address</CODE></A></DL> </DD> </DL> <HR> <A NAME="getPort()"><!-- --></A><H3> getPort</H3> <PRE> protected int <B>getPort</B>()</PRE> <DL> <DD>Returns the value of this socket's <code>port</code> field. 返回此套接字port成员变量的值。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the value of this socket's <code>port</code> field. 此套接字port成员变量的值。<DT><B>See Also:</B><DD><A HREF="../../java/net/SocketImpl.html#port"><CODE>port</CODE></A></DL> </DD> </DL> <HR> <A NAME="supportsUrgentData()"><!-- --></A><H3> supportsUrgentData</H3> <PRE> protected boolean <B>supportsUrgentData</B>()</PRE> <DL> <DD>Returns whether or not this SocketImpl supports sending urgent data. By default, false is returned unless the method is overridden in a sub-class 判断此SocketImpl是否支持发送紧急数据。默认情况下,除非在子类中重载方法,否则返回false <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>true if urgent data supported 如果支持紧急数据,返回true<DT><B>Since:</B></DT> <DD>1.4</DD> <DT><B>See Also:</B><DD><A HREF="../../java/net/SocketImpl.html#address"><CODE>address</CODE></A></DL> </DD> </DL> <HR> <A NAME="sendUrgentData(int)"><!-- --></A><H3> sendUrgentData</H3> <PRE> protected abstract void <B>sendUrgentData</B>(int data) throws <A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></PRE> <DL> <DD>Send one byte of urgent data on the socket. The byte to be sent is the low eight bits of the parameter 在套接字上发送一个字节的紧急数据。要发送的字节是参数的低八位。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>data</CODE> - The byte of data to send 要发送的数据字节 <DT><B>Throws:</B> <DD><CODE><A HREF="../../java/io/IOException.html" title="class in java.io">IOException</A></CODE> - if there is an error sending the data. 发送数据时如果有错误则抛出。<DT><B>Since:</B></DT> <DD>1.4</DD> </DL> </DD> </DL> <HR> <A NAME="getLocalPort()"><!-- --></A><H3> getLocalPort</H3> <PRE> protected int <B>getLocalPort</B>()</PRE> <DL> <DD>Returns the value of this socket's <code>localport</code> field. 返回此套接字localport成员变量的值。 <P> <DD><DL> </DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the value of this socket's <code>localport</code> field. 此套接字localport成员变量的值。<DT><B>See Also:</B><DD><A HREF="../../java/net/SocketImpl.html#localport"><CODE>localport</CODE></A></DL> </DD> </DL> <HR> <A NAME="toString()"><!-- --></A><H3> toString</H3> <PRE> public <A HREF="../../java/lang/String.html" title="class in java.lang">String</A> <B>toString</B>()</PRE> <DL> <DD>Returns the address and port of this socket as a <code>String</code>. 以字符串的形式返回套接字的地址和端口。 <P> <DD><DL> <DT><B>Overrides:</B><DD><CODE><A HREF="../../java/lang/Object.html#toString()">toString</A></CODE> in class <CODE><A HREF="../../java/lang/Object.html" title="class in java.lang">Object</A></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>a string representation of this socket. 此套接字的字符串形式。</DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/SocketImpl.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> <b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. 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