Java代碼?
/**
*?通信格式轉(zhuǎn)換
*
*?Java和一些windows編程語言如c蒜危、c++般哼、delphi所寫的網(wǎng)絡(luò)程序進行通訊時宛蚓，需要進行相應(yīng)的轉(zhuǎn)換
*?高、低字節(jié)之間的轉(zhuǎn)換
*?windows的字節(jié)序為低字節(jié)開頭
*?linux,unix的字節(jié)序為高字節(jié)開頭
*?java則無論平臺變化鸿竖，都是高字節(jié)開頭
??*/???
public?class?FormatTransfer?{??
/**
??*?將int轉(zhuǎn)為低字節(jié)在前沧竟，高字節(jié)在后的byte數(shù)組
??*?@param?n?int
??*?@return?byte[]
??*/??
public?static?byte[]?toLH(int?n)?{??
byte[]?b?=?new?byte[4];??
b[0]?=?(byte)?(n?&?0xff);??
b[1]?=?(byte)?(n?>>?8?&?0xff);??
b[2]?=?(byte)?(n?>>?16?&?0xff);??
b[3]?=?(byte)?(n?>>?24?&?0xff);??
return?b;??
}???
/**
??*?將int轉(zhuǎn)為高字節(jié)在前，低字節(jié)在后的byte數(shù)組
??*?@param?n?int
??*?@return?byte[]
??*/??
public?static?byte[]?toHH(int?n)?{??
byte[]?b?=?new?byte[4];??
b[3]?=?(byte)?(n?&?0xff);??
b[2]?=?(byte)?(n?>>?8?&?0xff);??
b[1]?=?(byte)?(n?>>?16?&?0xff);??
b[0]?=?(byte)?(n?>>?24?&?0xff);??
return?b;??
}???
/**
??*?將short轉(zhuǎn)為低字節(jié)在前千贯，高字節(jié)在后的byte數(shù)組
??*?@param?n?short
??*?@return?byte[]
??*/??
public?static?byte[]?toLH(short?n)?{??
byte[]?b?=?new?byte[2];??
b[0]?=?(byte)?(n?&?0xff);??
b[1]?=?(byte)?(n?>>?8?&?0xff);??
return?b;??
}???
/**
??*?將short轉(zhuǎn)為高字節(jié)在前屯仗，低字節(jié)在后的byte數(shù)組
??*?@param?n?short
??*?@return?byte[]
??*/??
public?static?byte[]?toHH(short?n)?{??
byte[]?b?=?new?byte[2];??
b[1]?=?(byte)?(n?&?0xff);??
b[0]?=?(byte)?(n?>>?8?&?0xff);??
return?b;??
}???
/**
??*?將將int轉(zhuǎn)為高字節(jié)在前，低字節(jié)在后的byte數(shù)組?
public?static?byte[]?toHH(int?number)?{
??int?temp?=?number;
??byte[]?b?=?new?byte[4];
??for?(int?i?=?b.length?-?1;?i?>?-1;?i--)?{
????b?=?new?Integer(temp?&?0xff).byteValue();
????temp?=?temp?>>?8;
??}
??return?b;
}?
public?static?byte[]?IntToByteArray(int?i)?{
????byte[]?abyte0?=?new?byte[4];
????abyte0[3]?=?(byte)?(0xff?&?i);
????abyte0[2]?=?(byte)?((0xff00?&?i)?>>?8);
????abyte0[1]?=?(byte)?((0xff0000?&?i)?>>?16);
????abyte0[0]?=?(byte)?((0xff000000?&?i)?>>?24);
????return?abyte0;
}?
*/???
/**
??*?將float轉(zhuǎn)為低字節(jié)在前搔谴，高字節(jié)在后的byte數(shù)組
??*/??
public?static?byte[]?toLH(float?f)?{??
return?toLH(Float.floatToRawIntBits(f));??
}???
/**
??*?將float轉(zhuǎn)為高字節(jié)在前魁袜，低字節(jié)在后的byte數(shù)組
??*/??
public?static?byte[]?toHH(float?f)?{??
return?toHH(Float.floatToRawIntBits(f));??
}???
/**
??*?將String轉(zhuǎn)為byte數(shù)組
??*/??
public?static?byte[]?stringToBytes(String?s,?int?length)?{??
while?(s.getBytes().length?<?length)?{??
s?+="?";??
??}??
return?s.getBytes();??
}???
/**
??*?將字節(jié)數(shù)組轉(zhuǎn)換為String
??*?@param?b?byte[]
??*?@return?String
??*/??
public?static?String?bytesToString(byte[]?b)?{??
StringBuffer?result?=new?StringBuffer("");??
int?length?=?b.length;??
for?(int?i=0;?i
result.append((char)(b?&?0xff));??
??}??
return?result.toString();??
}???
/**
??*?將字符串轉(zhuǎn)換為byte數(shù)組
??*?@param?s?String
??*?@return?byte[]
??*/??
public?static?byte[]?stringToBytes(String?s)?{??
return?s.getBytes();??
}???
/**
??*?將高字節(jié)數(shù)組轉(zhuǎn)換為int
??*?@param?b?byte[]
??*?@return?int
??*/??
public?static?int?hBytesToInt(byte[]?b)?{??
int?s?=?0;??
for?(int?i?=?0;?i?<?3;?i++)?{??
if?(b?>=?0)?{??
????s?=?s?+?b;??
}else?{??
s?=?s?+256?+?b;??
????}??
s?=?s?*256;??
??}??
if?(b[3]?>=?0)?{??
s?=?s?+?b[3];??
}else?{??
s?=?s?+256?+?b[3];??
??}??
return?s;??
}???
/**
??*?將低字節(jié)數(shù)組轉(zhuǎn)換為int
??*?@param?b?byte[]
??*?@return?int
??*/??
public?static?int?lBytesToInt(byte[]?b)?{??
int?s?=?0;??
for?(int?i?=?0;?i?<?3;?i++)?{??
if?(b[3-i]?>=?0)?{??
s?=?s?+?b[3-i];??
}else?{??
s?=?s?+256?+?b[3-i];??
????}??
s?=?s?*256;??
??}??
if?(b[0]?>=?0)?{??
s?=?s?+?b[0];??
}else?{??
s?=?s?+256?+?b[0];??
??}??
return?s;??
}???
/**
??*?高字節(jié)數(shù)組到short的轉(zhuǎn)換
??*?@param?b?byte[]
??*?@return?short
??*/??
public?static?short?hBytesToShort(byte[]?b)?{??
int?s?=?0;??
if?(b[0]?>=?0)?{??
s?=?s?+?b[0];??
}else?{??
s?=?s?+256?+?b[0];??
????}??
s?=?s?*256;??
if?(b[1]?>=?0)?{??
s?=?s?+?b[1];??
}else?{??
s?=?s?+256?+?b[1];??
??}??
short?result?=?(short)s;??
return?result;??
}???
/**
??*?低字節(jié)數(shù)組到short的轉(zhuǎn)換
??*?@param?b?byte[]
??*?@return?short
??*/??
public?static?short?lBytesToShort(byte[]?b)?{??
int?s?=?0;??
if?(b[1]?>=?0)?{??
s?=?s?+?b[1];??
}else?{??
s?=?s?+256?+?b[1];??
????}??
s?=?s?*256;??
if?(b[0]?>=?0)?{??
s?=?s?+?b[0];??
}else?{??
s?=?s?+256?+?b[0];??
??}??
short?result?=?(short)s;??
return?result;??
}???
/**
??*?高字節(jié)數(shù)組轉(zhuǎn)換為float
??*?@param?b?byte[]
??*?@return?float
??*/??
public?static?float?hBytesToFloat(byte[]?b)?{??
int?i?=?0;??
Float?F?=new?Float(0.0);??
i?=?((((b[0]&0xff)<<8?|?(b[1]&0xff))<<8)?|?(b[2]&0xff))<<8?|?(b[3]&0xff);??
return?F.intBitsToFloat(i);??
}???
/**
??*?低字節(jié)數(shù)組轉(zhuǎn)換為float
??*?@param?b?byte[]
??*?@return?float
??*/??
public?static?float?lBytesToFloat(byte[]?b)?{??
int?i?=?0;??
Float?F?=new?Float(0.0);??
i?=?((((b[3]&0xff)<<8?|?(b[2]&0xff))<<8)?|?(b[1]&0xff))<<8?|?(b[0]&0xff);??
return?F.intBitsToFloat(i);??
}???
/**
??*?將byte數(shù)組中的元素倒序排列
??*/??
public?static?byte[]?bytesReverseOrder(byte[]?b)?{??
int?length?=?b.length;??
byte[]?result?=?new?byte[length];??
for(int?i=0;?i
result[length-i-1]?=?b;??
??}??
return?result;??
}???
/**
??*?打印byte數(shù)組
??*/??
public?static?void?printBytes(byte[]?bb)?{??
int?length?=?bb.length;??
for?(int?i=0;?i
System.out.print(bb?+"?");??
??}??
System.out.println("");??
}???
public?static?void?logBytes(byte[]?bb)?{??
int?length?=?bb.length;??
String?out?="";??
for?(int?i=0;?i
out?=?out?+?bb?+"?";??
??}???
}???
/**
??*?將int類型的值轉(zhuǎn)換為字節(jié)序顛倒過來對應(yīng)的int值
??*?@param?i?int
??*?@return?int
??*/??
public?static?int?reverseInt(int?i)?{??
int?result?=?FormatTransfer.hBytesToInt(FormatTransfer.toLH(i));??
return?result;??
}???
/**
??*?將short類型的值轉(zhuǎn)換為字節(jié)序顛倒過來對應(yīng)的short值
??*?@param?s?short
??*?@return?short
??*/??
public?static?short?reverseShort(short?s)?{??
short?result?=?FormatTransfer.hBytesToShort(FormatTransfer.toLH(s));??
return?result;??
}???
/**
??*?將float類型的值轉(zhuǎn)換為字節(jié)序顛倒過來對應(yīng)的float值
??*?@param?f?float
??*?@return?float
??*/??
public?static?float?reverseFloat(float?f)?{??
float?result?=?FormatTransfer.hBytesToFloat(FormatTransfer.toLH(f));??
return?result;??
}???
}??
