java net 一些常用api

java.net.InetAddress
static InetAddress[]    getAllByName(String host)
static InetAddress        getByName(String host)
                        getByAddress(byte[] addr)
                        getByAddress(String host, byte[] addr)
                        getLocalHost()
                        getLoopbackAddress()
String                    getHostAddress()
                        getHostName()
boolean                    isReachable(int timeout)

java.net.URL
CONSTRUCTOR                URL(String spec)
                        URL(String protocol, String host, String file)
                        URL(String protocol, String host, int port, String file)
InputStream                OpenStream()
URLConnection            openConnection()
String                    getHost()
                        getPath()
                        getProtocol()
                        getQuery()
int                        getPort()

java.net.URLConnection
void                    setDoInput(boolean)
                        setDoOutput(boolean)
                        setDefaultUseCaches(boolean)
                        setRequestProperty(String key, String value)
boolean                    getDoInput()
                        getDoOuput()
                        getDefaultUseCaches()
int                        getConnetTimeout()
                        getContentLength()
                        
long                    getExpiration()
                        getDate()
                        getContentLengthLong()
String                    getContentType()
                        getContentEnconding()
                        getRequestProperty(String key)
                        getHeaderField(String name)
URL                        getURL()
InputStream                getInputStream()
OutputStream            getOutputStream()
Map<String,List<Stirng>>getRequestProperty()
                        getHeaderField()
                        
java.net.HttpURLConnection extents URLConnection
static int                HTTP_ACCEPTED        202
                        HTTP_OK                200
                        HTTP_BAD_GATEWAY    502
                        HTTP_UNAVIALABLE    503
                        HTTP_BAD_METHOD        405
                        HTTP_BAD_REQUEST    400
                        HTTP_FORBIDDEN        403
                        HTTP_NOT_FOUND        404
InputStream                getErrorStream()
String                    getRequestMethod()
                        getResponseMessage()
int                        getRequestCode()
void                    setRequestMethod(String method)
                        
java.net.URLEncoder
static String            encode(String s, String enc)

java.net.URLDecoder
static String            decode(String s, String enc)

java.net.Socket
CONSTRUCTOR                Socket()
                        Socket(InetAddress address, int port)
                        Socket(String host, int port)
void                    shutdownInput()
                        shutdownOutput()
boolean                    isInputShutdown()
                        isOutputShutdown()
                        
java.net.ServerSocket
CONSTRUCTOR                ServerSocket()
                        ServerSocket(int port)
Socket                    accept()