[android]通信中常用到的Helper

package?com.van.base;

import?java.io.UnsupportedEncodingException;

public?class?ByteHelper?{
?
????/**
[email protected]:?UInt16ToByte2
[email protected]:?TODO(将UInt16转化为byte2)
????*
????*?@param?Val
????*?@return
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?UInt16ToByte2(Integer?Val)?{
????????byte[]?bts?=?new?byte[2];
????????bts[0]?=?(byte)?((0xff00?&?Val)?>>?8);
????????bts[1]?=?(byte)?(0xff?&?Val);
????????return?bts;
????}
?
????/**
[email protected]:?UInt16ToByte2
[email protected]:?TODO(将UInt16转化为byte2)
????*
????*?@param?i
????*?@param?bts
????*?@param?offset
????*?@return:void
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?void?UInt16ToByte2(Integer?i,?byte[]?bts,?int?offset)?{
????????byte[]?btsTemp?=?UInt16ToByte2(i);
????????int?index?=?0;
????????while?(index?<?2)?{
????????????bts[index?+?offset]?=?btsTemp[index];
????????????index?+=?1;
????????}
????}
?
????/**
[email protected]:?Int16ToByte2
[email protected]:?TODO(将Int16转化为byte2)
????*
????*?@param?Val
????*?@return
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?Int16ToByte2(Short?Val)?{
????????byte[]?bts?=?new?byte[2];
????????bts[0]?=?(byte)?((Val?>>?8)?&?0xff);
????????bts[1]?=?(byte)?(Val?&?0xff);
????????return?bts;
????}
?
????/**
[email protected]:?Int16ToByte2
[email protected]:?TODO(将Int16转化为byte2)
????*
????*?@param?i
????*?@param?bts
????*?@param?offset
????*?@return:void
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?void?Int16ToByte2(Short?i,?byte[]?bts,?int?offset)?{
????????byte[]?btsTemp?=?Int16ToByte2(i);
????????int?index?=?0;
????????while?(index?<?2)?{
????????????bts[index?+?offset]?=?btsTemp[index];
????????????index?+=?1;
????????}
????}
?
????/**
[email protected]:?UIntToByte4
[email protected]:?TODO(将Uint32转化为byte4)
????*
????*?@param?Val
????*?@return
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?UIntToByte4(Long?Val)?{
????????byte[]?bts?=?new?byte[4];
????????bts[0]?=?(byte)?((0xff000000L?&?Val)?>>?24);
????????bts[1]?=?(byte)?((0xff0000?&?Val)?>>?16);
????????bts[2]?=?(byte)?((0xff00?&?Val)?>>?8);
????????bts[3]?=?(byte)?(0xff?&?Val);
????????return?bts;
????}
?
????/**
[email protected]:?UIntToByte4
[email protected]:?TODO(将Uint32转化为byte4)
????*
????*?@param?i
????*?@param?bts
????*?@param?offset
????*?@return:void
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?void?UIntToByte4(Long?i,?byte[]?bts,?int?offset)?{
????????byte[]?btsTemp?=?UIntToByte4(i);
????????int?index?=?0;
????????while?(index?<?4)?{
????????????bts[index?+?offset]?=?btsTemp[index];
????????????index?+=?1;
????????}
????}
?
????/**
[email protected]:?IntToByte4
[email protected]:?TODO(将int32转化为byte4)
????*
????*?@param?Val
????*?@return
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?IntToByte4(Integer?Val)?{
????????byte[]?bts?=?new?byte[4];
????????bts[0]?=?(byte)?((0xff000000?&?Val)?>>?24);
????????bts[1]?=?(byte)?((0xff0000?&?Val)?>>?16);
????????bts[2]?=?(byte)?((0xff00?&?Val)?>>?8);
????????bts[3]?=?(byte)?(0xff?&?Val);
????????return?bts;
????}?
????/**
[email protected]:?IntToByte4
[email protected]:?TODO(将int32转化为byte4)
????*
????*?@param?i
????*?@param?bts
????*?@param?offset
????*?@return:void
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?void?IntToByte4(Integer?i,?byte[]?bts,?int?offset)?{
????????byte[]?btsTemp?=?IntToByte4(i);
????????int?index?=?0;
????????while?(index?<?4)?{
????????????bts[index?+?offset]?=?btsTemp[index];
????????????index?+=?1;
????????}
????}
?
????/**
[email protected]:?FloatToByte4
[email protected]:?TODO(Float转byte4)
????*
????*?@param?val
????*?@return
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?FloatToByte4(float?val)?{
????????return?IntToByte4(Float.floatToIntBits(val));
????}?
????/**
[email protected]:?FloatToByte4
[email protected]:?TODO(Float转byte4)
????*
????*?@param?val
????*?@param?bts
????*?@param?offset
????*?@return:void
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?void?FloatToByte4(float?val,?byte[]?bts,?int?offset)?{
????????byte[]?btsTemp?=?FloatToByte4(val);
????????int?index?=?0;
????????while?(index?<?4)?{
????????????bts[index?+?offset]?=?btsTemp[index];
????????????index?+=?1;
????????}
????}

????/**
[email protected]:?Byte2ToInt16
[email protected]:?TODO(Byte2转int16)
?????*?
?????*?@param?bt1
?????*?@param?bt2
?????*?@return
?????*?@return:short
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?short?Byte2ToInt16(byte?bt1,?byte?bt2)?{
????????return?(short)?((bt1?&?0xff)?<<?8?|?bt2?&?0xff);

????}

????/**
[email protected]:?Byte2ToInt16
[email protected]:?TODO(Byte2转int16)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@return:short
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?short?Byte2ToInt16(byte[]?bts,?int?offset)?{
????????return?Byte2ToInt16(bts[offset],?bts[offset?+?1]);

????}

????/**
[email protected]:?Byte2ToUInt16
[email protected]:?TODO(Byte2转uint16)
?????*?
?????*?@param?bt1
?????*?@param?bt2
?????*?@return
?????*?@return:Integer
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?Integer?Byte2ToUInt16(byte?bt1,?byte?bt2)?{
????????return?(int)?((bt1?&?0xff)?<<?8?|?bt2?&?0xff);
????}

????/**
[email protected]:?Byte2ToUInt16
[email protected]:?TODO(?Byte2转uint16)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@return:Integer
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?Integer?Byte2ToUInt16(byte[]?bts,?int?offset)?{
????????return?Byte2ToUInt16(bts[offset],?bts[offset?+?1]);
????}

????/**
[email protected]:?Byte4ToInt32
[email protected]:?TODO(Byte4转int32)
?????*?
?????*?@param?bt1
?????*?@param?bt2
?????*?@param?bt3
?????*?@param?bt4
?????*?@return
?????*?@return:Integer
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?Integer?Byte4ToInt32(byte?bt1,?byte?bt2,?byte?bt3,?byte?bt4)?{
????????return?(bt1?&?0xff)?<<?24?|?(bt2?&?0xff)?<<?16?|?(bt3?&?0xff)?<<?8
????????????????|?bt4?&?0xff;

????}

????/**
[email protected]:?Byte4ToInt32
[email protected]:?TODO(Byte4转int32)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@return:Integer
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?Integer?Byte4ToInt32(byte[]?bts,?int?offset)?{
????????return?Byte4ToInt32(bts[offset],?bts[offset?+?1],?bts[offset?+?2],
????????????????bts[offset?+?3]);

????}

????/**
[email protected]:?Byte4ToUInt32
[email protected]:?TODO(Byte4转uint32)
?????*?
?????*?@param?bt1
?????*?@param?bt2
?????*?@param?bt3
?????*?@param?bt4
?????*?@return
?????*?@return:long
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?long?Byte4ToUInt32(byte?bt1,?byte?bt2,?byte?bt3,?byte?bt4)?{

????????return?(long)?Byte4ToInt32(bt1,?bt2,?bt3,?bt4);
????}

????/**
[email protected]:?Byte4ToUInt32
[email protected]:?TODO(Byte4转uint32)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@return:long
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?long?Byte4ToUInt32(byte[]?bts,?int?offset)?{
????????return?Byte4ToUInt32(bts[offset],?bts[offset?+?1],?bts[offset?+?2],
????????????????bts[offset?+?3]);
????}

????/**
[email protected]:?Byte4ToFloat
[email protected]:?TODO(Byte4转Float)
?????*?
?????*?@param?bt1
?????*?@param?bt2
?????*?@param?bt3
?????*?@param?bt4
?????*?@return
?????*?@return:float
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?float?Byte4ToFloat(byte?bt1,?byte?bt2,?byte?bt3,?byte?bt4)?{
????????return?Float.intBitsToFloat(Byte4ToInt32(bt1,?bt2,?bt3,?bt4));
????}

????/**
[email protected]:?Byte4ToFloat
[email protected]:?TODO(Byte4转Float)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@return:float
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?float?Byte4ToFloat(byte[]?bts,?int?offset)?{
????????return?Byte4ToFloat(bts[offset],?bts[offset?+?1],?bts[offset?+?2],
????????????????bts[offset?+?3]);
????}

????/**
[email protected]:?StringToGBK
[email protected]:?TODO(字符串转GBK编码)
?????*?
?????*?@param?str
?????*?@return
?????*?@throws?UnsupportedEncodingException
?????*?@return:byte[]
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?byte[]?StringToGBK(String?str)
????????????throws?UnsupportedEncodingException?{

????????return?str.getBytes("GBK");
????}

????/**
[email protected]:?FillSGBK
[email protected]:?TODO(填充GBK编码)
?????*?
?????*?@param?str
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@throws?UnsupportedEncodingException
?????*?@return:int
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?int?FillSGBK(String?str,?byte[]?bts,?int?offset)
????????????throws?UnsupportedEncodingException?{
????????return?FillSGBK(str,?bts,?offset,?0);
????}

????/**
[email protected]:?FillSGBK
[email protected]:?TODO(填充GBK编码)
?????*?
?????*?@param?str
?????*?@param?bts
?????*?@param?offset
?????*?@param?length
?????*?@return
?????*?@throws?UnsupportedEncodingException
?????*?@return:int
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?int?FillSGBK(String?str,?byte[]?bts,?int?offset,?int?length)
????????????throws?UnsupportedEncodingException?{
????????int?len?=?0;
????????if?(str?!=?null)?{
????????????byte[]?tmp?=?StringToGBK(str);
????????????//?填充数据
????????????for?(int?i?=?0;?i?<?tmp.length;?i++)?{
????????????????bts[offset?+?i]?=?tmp[i];
????????????}
????????????len?=?tmp.length;
????????}
????????//?补0
????????for?(int?i?=?len;?i?<?length;?i++)?{
????????????bts[offset?+?i]?=?0;
????????}
????????return?len?>?length???len?:?length;
????}

????/**
[email protected]:?GBKToString
[email protected]:?TODO(GBK编码转字符串)
?????*?
?????*?@param?bts
?????*?@return
?????*?@throws?UnsupportedEncodingException
?????*?@return:String
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?String?GBKToString(byte[]?bts)
????????????throws?UnsupportedEncodingException?{
????????return?GBKToString(bts,?0);
????}

????/**
[email protected]:?GBKToString
[email protected]:?TODO(GBK编码转字符串)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@return
?????*?@throws?UnsupportedEncodingException
?????*?@return:String
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?String?GBKToString(byte[]?bts,?int?offset)
????????????throws?UnsupportedEncodingException?{
????????return?SGBKToString(bts,?offset,?bts.length?-?offset);
????}

????/**
[email protected]:?SGBKToString
[email protected]:?TODO(GBK编码转字符串(定长字符串))
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@param?count
?????*?@return
?????*?@throws?UnsupportedEncodingException
?????*?@return:String
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?String?SGBKToString(byte[]?bts,?int?offset,?int?count)
????????????throws?UnsupportedEncodingException?{
????????return?new?String(bts,?offset,?count,?"GBK");
????}

????/**
[email protected]:?HexStringToBytes
[email protected]:?TODO(HEX字符串转BYTE数组)
?????*?
?????*?@param?hex
?????*?@return
?????*?@return:byte[]
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?byte[]?HexStringToBytes(String?hex)?{
????????byte[]?bts?=?new?byte[hex.length()?/?2];
????????for?(int?i?=?0;?i?<?bts.length;?i++)?{
????????????bts[i]?=?(byte)?Integer.parseInt(hex.substring(2?*?i,?2?*?i?+?2),
????????????????????16);
????????}
????????return?bts;
????}

????/**
[email protected]:?BytesToHexString
[email protected]:?TODO(BYTE数组转HEX字符串)
?????*?
?????*?@param?bts
?????*?@return
?????*?@return:String
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?String?BytesToHexString(byte[]?bts)?{
????????return?BytesToHexString(bts,?0,?bts.length);
????}

????/**
[email protected]:?BytesToHexString
[email protected]:?TODO(BYTE数组转HEX字符串)
?????*?
?????*?@param?bts
?????*?@param?offset
?????*?@param?count
?????*?@return
?????*?@return:String
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
[email protected]:?2011-11-8
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-8?wanjj?v1.0.0?修改原因
?????*/

????public?static?String?BytesToHexString(byte[]?bts,?int?offset,?int?count)?{
????????StringBuilder?sb?=?new?StringBuilder(bts.length?*?2);
????????for?(int?i?=?0;?i?<?count;?i++)?{
????????????sb.append(Integer.toHexString(bts[i?+?offset]));
????????}
????????return?sb.toString();
????}

????public?static?int?BoolToByte(boolean?bl)?{

????????return?bl???1?:?0?<<?0;
????}
}

package?com.van.base;

import?java.io.UnsupportedEncodingException;

import?android.text.format.Time;

public?class?BCDHelper?{?
????/**
[email protected]:?StrToBCD
[email protected]:?TODO(用BCD码压缩数字字符串)
????*
????*?@param?str
????*?@return
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?StrToBCD(String?str)?{

????????return?StrToBCD(str,?str.length());
????}

????public?static?byte[]?StrToBCD(String?str,?int?numlen)?{
????????if?(numlen?%?2?!=?0)
????????????numlen++;

????????while?(str.length()?<?numlen)?{
????????????str?=?"0"?+?str;
????????}

????????byte[]?bStr?=?new?byte[str.length()?/?2];
????????char[]?cs?=?str.toCharArray();
????????int?i?=?0;
????????int?iNum?=?0;
????????for?(i?=?0;?i?<?cs.length;?i?+=?2)?{

????????????int?iTemp?=?0;
????????????if?(cs[i]?>=?'0'?&&?cs[i]?<=?'9')?{
????????????????iTemp?=?(cs[i]?-?'0')?<<?4;
????????????}?else?{
????????????????//?判断是否为a~f
????????????????if?(cs[i]?>=?'a'?&&?cs[i]?<=?'f')?{
????????????????????cs[i]?-=?32;
????????????????}
????????????????iTemp?=?(cs[i]?-?'0'?-?7)?<<?4;
????????????}
????????????//?处理低位
????????????if?(cs[i?+?1]?>=?'0'?&&?cs[i?+?1]?<=?'9')?{
????????????????iTemp?+=?cs[i?+?1]?-?'0';
????????????}?else?{
????????????????//?判断是否为a~f
????????????????if?(cs[i?+?1]?>=?'a'?&&?cs[i?+?1]?<=?'f')?{
????????????????????cs[i?+?1]?-=?32;
????????????????}
????????????????iTemp?+=?cs[i?+?1]?-?'0'?-?7;
????????????}
????????????bStr[iNum]?=?(byte)?iTemp;
????????????iNum++;
????????}
????????return?bStr;

????}

????/**
[email protected]:?bcdToInt
[email protected]:?TODO(BCD转int)
????*
????*?@param?bcdNum
????*?@param?offset
????*?@param?numlen
????*?@return
????*?@return:int
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?int?bcdToInt(byte[]?bcdNum,?int?offset,?int?numlen)?{
????????return?Integer.parseInt(bcdToString(bcdNum,?offset,?numlen));
????}
?
????/**
[email protected]:?bcdToString
[email protected]:?TODO(BCD转字符串)
????*
????*?@param?bcdNum
????*?@param?offset
????*?@param?numlen
????*?@return
????*?@return:String
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?String?bcdToString(byte[]?bcdNum,?int?offset,?int?numlen)?{
????????int?len?=?numlen?/?2;
????????if?(numlen?%?2?!=?0)
????????????len++;

????????StringBuffer?sb?=?new?StringBuffer();
????????for?(int?i?=?0;?i?<?len;?i++)?{
????????????sb.append(Integer.toHexString((bcdNum[i?+?offset]?&?0xf0)?>>?4));
????????????sb.append(Integer.toHexString(bcdNum[i?+?offset]?&?0xf));
????????}
????????return?sb.toString();
????}
?
????/**
[email protected]:?Bcd3ToDateTime
[email protected]:?TODO(BCD码转日期)
????*
????*?@param?data
????*?@param?offset
????*?@return
????*?@return:Time
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
[email protected]:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?Time?Bcd3ToDateTime(byte[]?data,?int?offset)?{
????????int?year?=?0,?month?=?0,?monthDay?=?0;
????????year?=?Integer.parseInt("20"?+?bcdToString(data,?offset,?2));
????????month?=?bcdToInt(data,?offset?+?1,?2);
????????monthDay?=?bcdToInt(data,?offset?+?2,?2);
????????Time?time?=?new?Time("GMT+8");
????????time.set(monthDay,?month,?year);
????????return?time;
????}

????public?static?Time?Bcd5ToDateTime(byte[]?data,?int?offset)?{
????????int?year?=?0,?month?=?0,?monthDay?=?0,?hour?=?0,?minute?=?0,?second?=?0;

????????year?=?Integer.parseInt("20"?+?bcdToString(data,?offset,?2));
????????month?=?bcdToInt(data,?offset?+?1,?2);
????????monthDay?=?bcdToInt(data,?offset?+?2,?2);
????????hour?=?bcdToInt(data,?offset?+?3,?2);
????????minute?=?bcdToInt(data,?offset?+?4,?2);

????????Time?time?=?new?Time("GMT+8");
????????time.set(second,?minute,?hour,?monthDay,?month,?year);
????????return?time;
????}?
????/**
[email protected]:?Bcd6ToDateTime
????*?@Description:?TODO(BCD码转时间格式)
????*
????*?@param?data
????*?@param?offset
????*?@return
????*?@return:Time
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
????*?@date:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?Time?Bcd6ToDateTime(byte[]?data,?int?offset)?{
????????int?year?=?0,?month?=?0,?monthDay?=?0,?hour?=?0,?minute?=?0,?second?=?0;

????????year?=?Integer.parseInt("20"?+?bcdToString(data,?offset,?2));
????????month?=?bcdToInt(data,?offset?+?1,?2);
????????monthDay?=?bcdToInt(data,?offset?+?2,?2);
????????hour?=?bcdToInt(data,?offset?+?3,?2);
????????minute?=?bcdToInt(data,?offset?+?4,?2);
????????second?=?bcdToInt(data,?offset?+?5,?2);

????????Time?time?=?new?Time("GMT+8");
????????time.set(second,?minute,?hour,?monthDay,?month,?year);
????????return?time;
????}

????public?static?Time?Bcd7ToDateTime(byte[]?data,?int?offset)?{
????????int?year?=?0,?month?=?0,?monthDay?=?0,?hour?=?0,?minute?=?0,?second?=?0;

????????year?=?bcdToInt(data,?offset,?4);
????????month?=?bcdToInt(data,?offset?+?2,?2);
????????monthDay?=?bcdToInt(data,?offset?+?3,?2);
????????hour?=?bcdToInt(data,?offset?+?4,?2);
????????minute?=?bcdToInt(data,?offset?+?5,?2);
????????second?=?bcdToInt(data,?offset?+?6,?2);

????????Time?time?=?new?Time("GMT+8");
????????time.set(second,?minute,?hour,?monthDay,?month,?year);
????????return?time;
????}
?
????/**
????*?@Title:?DateTimeToBcd3
????*?@Description:?TODO(日期转BCD码)
????*
????*?@param?dt
????*?@return
????*?@throws?UnsupportedEncodingException
????*?@return:byte[]
????*
????*?@version:?v1.0.0
????*?@author:?WANJJ
????*?@date:?2011-11-17
????*?
????*?Modification?History:?
????*?Date??Author??Version??Description
????*?---------------------*
????*?2011-11-17??wanjj?v1.0.0???修改原因
????*/
????
????public?static?byte[]?DateTimeToBcd3(Time?dt)
????????????throws?UnsupportedEncodingException?{

????????StringBuilder?sb?=?new?StringBuilder();
????????sb.append(FStrLen(String.valueOf((dt.year?-?2000)),?2));
????????sb.append(FStrLen(String.valueOf((dt.month)),?2));
????????sb.append(FStrLen(String.valueOf((dt.monthDay)),?2));

????????return?StrToBCD(sb.toString());
????}

????public?static?byte[]?DateTimeToBcd5(Time?dt)
????????????throws?UnsupportedEncodingException?{

????????StringBuilder?sb?=?new?StringBuilder();

????????sb.append(FStrLen(String.valueOf((dt.year?-?2000)),?2));
????????sb.append(FStrLen(String.valueOf(dt.month),?2));
????????sb.append(FStrLen(String.valueOf(dt.monthDay),?2));
????????sb.append(FStrLen(String.valueOf(dt.hour),?2));
????????sb.append(FStrLen(String.valueOf(dt.minute),?2));

????????return?StrToBCD(sb.toString());
????}

????public?static?byte[]?DateTimeToBcd6(Time?dt)
????????????throws?UnsupportedEncodingException?{
????????StringBuilder?sb?=?new?StringBuilder();

????????sb.append(FStrLen(String.valueOf((dt.year?-?2000)),?2));
????????sb.append(FStrLen(String.valueOf(dt.month),?2));
????????sb.append(FStrLen(String.valueOf(dt.monthDay),?2));
????????sb.append(FStrLen(String.valueOf(dt.hour),?2));
????????sb.append(FStrLen(String.valueOf(dt.minute),?2));
????????sb.append(FStrLen(String.valueOf(dt.second),?2));

????????return?StrToBCD(sb.toString());
????}

????public?static?byte[]?DateTimeToBcd7(Time?dt)
????????????throws?UnsupportedEncodingException?{
????????StringBuilder?sb?=?new?StringBuilder();
????????sb.append(FStrLen(String.valueOf(dt.year),?4));
????????sb.append(FStrLen(String.valueOf(dt.month),?2));
????????sb.append(FStrLen(String.valueOf(dt.monthDay),?2));
????????sb.append(FStrLen(String.valueOf(dt.hour),?2));
????????sb.append(FStrLen(String.valueOf(dt.minute),?2));
????????sb.append(FStrLen(String.valueOf(dt.second),?2));
????????return?StrToBCD(sb.toString());
????}

????public?static?String?FStrLen(String?str,?int?len)?{
????????if?(str.length()?<?len)?{
????????????str?=?"0"?+?str;
????????}
????????return?str;
????}

????/**
?????*?@Title:?GetNowTime
?????*?@Description:?TODO(获取当前GMT+8时间)
?????*?
?????*?@return
?????*?@return:Time
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
?????*?@date:?2011-11-9
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-9?wanjj?v1.0.0?修改原因
?????*/
????public?static?Time?GetNowTime()?{

????????Time?t?=?GetNewTime();
????????t.setToNow();

????????return?t;
????}

????public?static?Time?GetNewTime()?{
????????return?new?Time("GMT+8");
????}

????/**
?????*?@Title:?TimeDiff
?????*?@Description:?TODO(计算两个时间相差毫秒数)
?????*?
?????*?@param?tm1
?????*?@param?tm2
?????*?@return
?????*?@return:long
?????*?
?????*?@version:?v1.0.0
?????*?@author:?WANJJ
?????*?@date:?2011-11-11
?????*?
?????*????????Modification?History:?Date?Author?Version?Description
?????*????????---------------------*
?????*????????2011-11-11?wanjj?v1.0.0?修改原因
?????*/

????public?static?long?TimeDiff(Time?tm1,?Time?tm2)?{
????????return?(tm1.toMillis(true)?-?tm2.toMillis(true));
????}
}

package?com.van.base;

import?java.util.ArrayList;

/**
?*?用户可以直接调用类里面的两个静态方法
?*?
?*?@author?WANJJ
?*?
?*/
public?class?CheckHelper?{

????/**
?????*?得出CRC计算结果
?????*?
?????*?@param?buf
?????*????????????要计算CRC的字符串
?????*?@return?整数
?????*/
????public?static?int?getCRC(String?buf)?{
????????int?crc?=?0xFFFF;?//?initial?value
????????int?polynomial?=?0x1021;?//?0001?0000?0010?0001?(0,?5,?12)

????????for?(int?j?=?0;?j?<?buf.length();?j++)?{
????????????char?b?=?buf.charAt(j);
????????????for?(int?i?=?0;?i?<?8;?i++)?{
????????????????boolean?bit?=?((b?>>?(7?-?i)?&?1)?==?1);
????????????????boolean?c15?=?((crc?>>?15?&?1)?==?1);
????????????????crc?<<=?1;
????????????????if?(c15?^?bit)
????????????????????crc?^=?polynomial;
????????????}
????????}

????????crc?&=?0xffff;
????????return?crc;
????}

????/**
?????*?得出CRC计算结果
?????*?
?????*?@param?buf
?????*????????????要计算CRC的字符串
?????*?@return?字符串,2个字节
?????*/
????public?static?String?getCRCString(String?buf)?{
????????int?crc?=?0xFFFF;?//?initial?value
????????int?polynomial?=?0x1021;?//?0001?0000?0010?0001?(0,?5,?12)

????????for?(int?j?=?0;?j?<?buf.length();?j++)?{
????????????char?b?=?buf.charAt(j);
????????????for?(int?i?=?0;?i?<?8;?i++)?{
????????????????boolean?bit?=?((b?>>?(7?-?i)?&?1)?==?1);
????????????????boolean?c15?=?((crc?>>?15?&?1)?==?1);
????????????????crc?<<=?1;
????????????????if?(c15?^?bit)
????????????????????crc?^=?polynomial;
????????????}
????????}

????????crc?&=?0xffff;
????????String?str?=?""?+?(char)?(crc?/?256)?+?(char)?(crc?%?256);
????????return?str;
????}

????/**
?????*?得出异或计算结果
?????*?
?????*?@param?data
?????*????????????要计算异或的数据
?????*?@param?offset
?????*????????????偏移位
?????*?@param?length
?????*????????????长度
?????*?@return?byte
?????*/
????public?static?byte?CheckXOR(byte[]?data,?int?offset,?int?length)?{
????????byte?xda?=?0;
????????for?(int?i?=?0;?i?<?length;?i++)?{
????????????xda?=?(byte)?((data[i?+?offset]?^?xda)?&?0xFF);
????????}
????????return?xda;
????}

????/**
?????*?校验并转义(异或效验)
?????*?
?????*?@param?data
?????*????????????要计算异或的数据
?????*?@param?offset
?????*????????????偏移位
?????*?@param?length
?????*????????????长度
?????*?@return?byte
?????*/
????public?static?void?XORAndEscape(ArrayList<Byte>?data,?int?offset,?int?length)?{
????????byte?xda?=?0;
????????for?(int?i?=?offset;?i?<?offset?+?length;?i++)?{
????????????xda?=?(byte)?(data.get(i)?^?xda);
????????????if?(data.get(i)?==?0x7e)//?转义?向后插入一个0x02
????????????{
????????????????data.set(i,?(byte)?0x7d);
????????????????data.add(i?+?1,?(byte)?0x02);
????????????????length++;
????????????????i++;
????????????}?else?if?(data.get(i)?==?0x7d)//?转义?向后插入一个0x01
????????????{
????????????????data.add(i?+?1,?(byte)?0x01);
????????????????length++;
????????????????i++;
????????????}
????????}
????????data.add(offset?+?length,?xda);
????????if?(xda?==?0x7e)//?转义?向后插入一个0x02
????????????data.add(offset?+?length?+?1,?(byte)?0x02);
????????else?if?(xda?==?0x7d)//?转义?向后插入一个0x01
????????????data.add(offset?+?length?+?1,?(byte)?0x01);
????}
}