org.jim.common.utils

Class BufferUtil

java.lang.Object

org.jim.common.utils.BufferUtil

public class BufferUtil
extends Object

本类的write部分摘自(感谢作者贡献):https://github.com/sea-boat/mysql-protocol.git
read部分自写

Constructor Summary

Constructors

Constructor and Description
BufferUtil()

Method Summary

Modifier and Type	Method and Description
static int	getLength(byte[] src)
static int	getLength(long length)
static void	move(int i, ByteBuffer buffer)
static void	position(int i, ByteBuffer buffer)
static byte	read(ByteBuffer buffer)
static Date	readDate(ByteBuffer buffer)
static double	readDouble(ByteBuffer buffer)
static float	readFloat(ByteBuffer buffer)
static int	readInt(ByteBuffer buffer)
static long	readLong(ByteBuffer buffer) 8个字节
static String	readString(ByteBuffer buffer)
static String	readString(ByteBuffer buffer, int length, String charset) 读取指定长度的String
static String	readString(ByteBuffer buffer, String charset)
static String	readStringWithNull(ByteBuffer buffer)
static String	readStringWithNull(ByteBuffer buffer, String charset)
static Time	readTime(ByteBuffer buffer)
static int	readUB2(ByteBuffer buffer)
static int	readUB3(ByteBuffer buffer)
static long	readUB4(ByteBuffer buffer)
static void	writeDouble(ByteBuffer buffer, double d)
static void	writeFloat(ByteBuffer buffer, float f)
static void	writeInt(ByteBuffer buffer, int i)
static void	writeLength(ByteBuffer buffer, long l)
static void	writeLong(ByteBuffer buffer, long l)
static void	writeUB2(ByteBuffer buffer, int i)
static void	writeUB3(ByteBuffer buffer, int i)
static void	writeUB4(ByteBuffer buffer, long l)
static void	writeWithLength(ByteBuffer buffer, byte[] src)
static void	writeWithLength(ByteBuffer buffer, byte[] src, byte nullValue)
static void	writeWithNull(ByteBuffer buffer, byte[] src)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BufferUtil

public BufferUtil()

Method Detail

read

public static byte read(ByteBuffer buffer)

readUB2

public static int readUB2(ByteBuffer buffer)

readUB3

public static int readUB3(ByteBuffer buffer)

readUB4

public static long readUB4(ByteBuffer buffer)

readInt

public static int readInt(ByteBuffer buffer)

readFloat

public static float readFloat(ByteBuffer buffer)

readLong

public static long readLong(ByteBuffer buffer)

8个字节

Parameters:

buffer -

Returns:

readDouble

public static double readDouble(ByteBuffer buffer)

readString

public static String readString(ByteBuffer buffer)

readString

public static String readString(ByteBuffer buffer,
                                String charset)

readStringWithNull

public static String readStringWithNull(ByteBuffer buffer,
                                        String charset)

readString

public static String readString(ByteBuffer buffer,
                                int length,
                                String charset)

读取指定长度的String

Parameters:

buffer -

length -

charset -

Returns:

readStringWithNull

public static String readStringWithNull(ByteBuffer buffer)

readTime

public static Time readTime(ByteBuffer buffer)

readDate

public static Date readDate(ByteBuffer buffer)

move

public static void move(int i,
                        ByteBuffer buffer)

position

public static void position(int i,
                            ByteBuffer buffer)

writeUB2

public static final void writeUB2(ByteBuffer buffer,
                                  int i)

writeUB3

public static final void writeUB3(ByteBuffer buffer,
                                  int i)

writeInt

public static final void writeInt(ByteBuffer buffer,
                                  int i)

writeFloat

public static final void writeFloat(ByteBuffer buffer,
                                    float f)

writeUB4

public static final void writeUB4(ByteBuffer buffer,
                                  long l)

writeLong

public static final void writeLong(ByteBuffer buffer,
                                   long l)

writeDouble

public static final void writeDouble(ByteBuffer buffer,
                                     double d)

writeLength

public static final void writeLength(ByteBuffer buffer,
                                     long l)

writeWithNull

public static final void writeWithNull(ByteBuffer buffer,
                                       byte[] src)

writeWithLength

public static final void writeWithLength(ByteBuffer buffer,
                                         byte[] src)

writeWithLength

public static final void writeWithLength(ByteBuffer buffer,
                                         byte[] src,
                                         byte nullValue)

getLength

public static final int getLength(long length)

getLength

public static final int getLength(byte[] src)