字符编码转换_进制转换（GB2312,GBK,JNI,HexTOStr）
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字符编码转换_进制转换（GB2312,GBK,JNI,HexTOStr）
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[cpp] view plain copy print? //?? /*?? ASCII?英文一個字節??? gb2312，gbk?中文兩個字節，英文一個字節??? 在中文系統中ansi一般指gb2312或gbk??? GB2312、GBK都屬于雙字節字符集?(DBCS)??? Utf-8?中文三個字節，英文一個字節??? Unicode?中文兩個字節，英文兩個字? */?? //?? //?? /*? GB2312?中國國家?標準碼? ? ????ANSI碼（American?National?Standards?Institute）? ????美國國家??標準學會?的?標準碼? ? ????ASCII碼(America?Standard?Code?for?Information?Interchange）美國信息交換標準碼? ? ????你可以認為是不同的東西!? ????ANSI碼僅在前126個與ASCII碼相同? */?? //?? ?? //?? /*? /*? *???二進制、八進制、十進制、十六進制轉換???16進制和字符相互轉換?????????????????????????????????????????????????????????????????????????????????????????????????????? */?? //?? ?? //?? /*? ????java內部是使用16bit的unicode編碼（UTF-16）來表示字符串的，無論中文英文都是2字節；? ????jni內部是使用UTF-8編碼來表示字符串的，UTF-8是變長編碼的unicode，一般ascii字符是1字節，中文是3字節；? ????c/c++使用的是原始數據，ascii就是一個字節了，中文一般是GB2312編碼，用兩個字節來表示一個漢字。? */?? //?? ?? //?? //???CodeConver.h?? //?? ?? #ifndef?CodeConver_H?? #define?CodeConver_H?? ?? namespace?CodeConvert?? {?? ?? ????#include?<stdio.h>?? ????#include?<string.h>?? ????#include?<windows.h>?? ????#include?<assert.h>?? ????#include?<jni.h>?? ????#include?<jni_md.h>?? ?? ????//???ANSI?To?Unicode?? ????//???測試通過?? ????wchar_t?*?ANSIToUnicode(?const?char*?str?)?? ????{?? ????????int?textlen?;?? ????????wchar_t?*?result;?? ??? ????????textlen?=?MultiByteToWideChar(?CP_ACP,?0,?str,-1,?NULL,0?);??? ????????if?(textlen?==0)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????result?=?(wchar_t?*)malloc((textlen+1)*sizeof(wchar_t));??? ????????memset(result,0,(textlen+1)*sizeof(wchar_t));??? ????????MultiByteToWideChar(CP_ACP,?0,str,-1,(LPWSTR)result,textlen?);??? ????????return?result;??? ????}?? ?? ????/************************************************************************/?? ????//??Unicode??To?ANSI(美國國家標準碼)?? ????//??測試通過?? ????//??[2/8/2012?liu]?? ????/************************************************************************/?? ????char?*?UnicodeToANSI(?const?wchar_t*?str?)?? ????{?? ????????char*?result;?? ????????int?textlen;?? ????????textlen?=?WideCharToMultiByte(?CP_ACP,?0,?str,?-1,?NULL,?0,?NULL,?NULL?);?? ????????if?(textlen?==0)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????result?=(char?*)malloc((textlen+1)*sizeof(char));?? ????????memset(?result,?0,?sizeof(char)?*?(?textlen?+?1?)?);?? ????????WideCharToMultiByte(?CP_ACP,?0,?str,?-1,?result,?textlen,?NULL,?NULL?);?? ????????return?result;?? ????}?? ?? ????/************************************************************************/?? ????//??UTF8?To?Unicode?? ????//??[2/8/2012?liu]?? ????//??測試通過?? ????/************************************************************************/?? ????int???UTF8ToUnicode(?wchar_t?*?&result,const?char*?utf8?)?? ????{?? ????????int?textlen?;?? ????????textlen?=?MultiByteToWideChar(?CP_UTF8,?0,?(LPCSTR)utf8,-1,?NULL,0?);??? ????????if?(textlen?==?0)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????result?=?(wchar_t?*)malloc((textlen+1)*sizeof(wchar_t));??? ????????memset(result,0,textlen?*?2?+?2);??? ????????int?widelen?=?MultiByteToWideChar(CP_UTF8,?0,(LPCSTR)utf8,-1,(LPWSTR)result,textlen?);??? ????????return?widelen-1;?? ?? ????}?? ?? ????/************************************************************************/?? ????//??UnicodeToUTF8?? ????//???????????? ????//??[2/8/2012?liu]?? ????/************************************************************************/?? ????char?*?UnicodeToUTF8(?const?wchar_t*?str?)?? ????{?? ????????char*?result;?? ????????int?textlen;?? ????????textlen?=?WideCharToMultiByte(?CP_UTF8,?0,?str,?-1,?NULL,?0,?NULL,?NULL?);?? ????????if?(textlen?==?0)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????result?=(char?*)malloc((textlen+1)*sizeof(char));?? ????????memset(result,?0,?sizeof(char)?*?(?textlen?+?1?)?);?? ????????WideCharToMultiByte(?CP_UTF8,?0,?str,?-1,?result,?textlen,?NULL,?NULL?);?? ????????return?result;?? ????}?? ????/************************************************************************/?? ????//??寬字符?轉換為?多字符??Unicode?-?ANSI?? ????//???????????? ????//??[2/8/2012?liu]?? ????/************************************************************************/?? ????char*?w2m(const?wchar_t*?wcs)?? ????{?? ????????int?len;?? ????????char*?buf;?? ????????if?(wcs?=NULL)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????len?=wcstombs(NULL,wcs,0);?? ????????if?(len?==?0)?? ????????????return?NULL;?? ????????buf?=?(char?*)malloc(sizeof(char)*(len+1));?? ????????memset(buf,?0,?sizeof(char)?*(len+1));?? ????????len?=wcstombs(buf,wcs,len+1);?? ????????return?buf;?? ????}?? ?? ????/************************************************************************/?? ????//??多字符?轉換為?寬字符??ANSI?-?Unicode?? ????//??? ????//??[2/8/2012?liu]?? ????/************************************************************************/?? ????wchar_t*?multiByte_to_wideChar(const?char*?mbs)?? ????{?? ????????int?len;?? ????????wchar_t*?buf;?? ????????if?(mbs?==?NULL)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????len?=mbstowcs(NULL,mbs,0);?? ????????if?(len?==?0)?? ????????????return?NULL;?? ????????buf?=?(wchar_t?*)malloc(sizeof(wchar_t)*(len+1));?? ????????memset(buf,?0,?sizeof(wchar_t)?*(len+1));?? ????????len?=mbstowcs(buf,mbs,len+1);?? ????????return?buf;?? ????}?? ?? ????/************************************************************************/?? ????//??ANSI?To?UTF8?? ????//??？？？？？？?? ????//??[2/8/2012?liu]?? ????/************************************************************************/?? ????char*?ANSIToUTF8(const?char*?str)?? ????{?? ????????return?UnicodeToUTF8(ANSIToUnicode(str));?? ????}?? ?? ????/************************************************************************/?? ????//??UTF8?To?ANSI?? ????//??測試通過?? ????//??[2/8/2012?liu]?? ????/************************************************************************/?? ????char*?UTF8ToANSI(const?char*?str)?? ????{?? ????????wchar_t?*?temp;?? ????????if?(str?==?NULL)?? ????????{?? ????????????return?NULL;?? ????????}?? ????????UTF8ToUnicode(temp,str);?? ????????return?UnicodeToANSI(temp);?? ????}?? ?? ?????? ?? ????//??測試OK?? ????//??UTF8??convert?to?GB2312?? ????void?UTF8ToGB2312(?const?char?*??utf8,?char?*?&gb2312?)?? ????{?? ????????int?nLen?=?MultiByteToWideChar(?CP_UTF8,?0,?utf8,?-1,?NULL,?0?);?? ????????if?(nLen?==?0)?? ????????{?? ????????????gb2312?=?NULL;?? ????????????return?;?? ????????}?? ?????????? ????????USHORT*?pwszGB2312?=?new?USHORT[?nLen?+?1?];?? ????????RtlZeroMemory(?pwszGB2312,?nLen?*?2?+?2?);?? ?????????? ????????MultiByteToWideChar(?CP_UTF8,?0,?utf8,?-1,?pwszGB2312,?nLen?);?? ?????????? ????????nLen?=?WideCharToMultiByte(?CP_ACP,?0,?pwszGB2312,?-1,?NULL,?0,?NULL,?NULL?);?? ?????????? ????????CHAR*?pszGB2312?=?new?CHAR[?nLen?+?1?];?? ????????RtlZeroMemory(?pszGB2312,?nLen?+?1?);?? ?????????? ????????WideCharToMultiByte(?CP_ACP,?0,?pwszGB2312,?-1,?pszGB2312,?nLen,?NULL,?NULL?);?? ?????????? ????????gb2312?=?pszGB2312;?? ?????????? ????//??????delete?[]?pszGB2312;?? ????//??????delete?[]?pwszGB2312;?? ????}?? ?? ????//?GB2312?convert?to?UTF8?? ????//??測試通過?? ????int?GB2312ToUTF8(?const??char?*?gb2312,char?*?&utf8?)?? ????{?? ????????int?nLen1?=?MultiByteToWideChar(?CP_ACP,?0,?gb2312,?-1,?NULL,?0?);?? ????????if?(nLen1?==?0)?? ????????{?? ????????????return?0;?? ????????}?? ?????????? ????????USHORT*?pwszUTF8?=?new?USHORT[?nLen1?+?1?];?? ????????RtlZeroMemory(?pwszUTF8,?nLen1?*?2?+?2?);?? ?????????? ????????MultiByteToWideChar(?CP_ACP,?0,?gb2312,?-1,?pwszUTF8,?nLen1?);?? ?????????? ????????int?nLen?=?WideCharToMultiByte(?CP_UTF8,?0,?pwszUTF8,?-1,?NULL,?0,?NULL,?NULL?);?? ?????????? ????????CHAR*?pszUTF8?=?new?CHAR[?nLen?+?1?];?? ????????RtlZeroMemory(?pszUTF8,?nLen?+?1?);?? ?????????? ????????WideCharToMultiByte(?CP_UTF8,?0,?pwszUTF8,?-1,?pszUTF8,?nLen,?NULL,?NULL?);?? ?????????? ????????utf8?=?pszUTF8;?? ?? ????????return?nLen1-1;?? ?? ????//??delete?[]?pszUTF8;?? ????//??delete?[]?pwszUTF8;?? ????}?? ?? ????//??Gb2312?To?Unicode?? ????//??測試通過?? ????int??Gb2312ToUnicode(wchar_t?*?&OutUnicode,const?char?*gb2312)?? ????{?? ????????char?*?utf8?=?NULL;?? ????????if?(gb2312==NULL)?? ????????{?? ????????????OutUnicode?=?NULL;?? ????????????return?0;?? ????????}?? ????????GB2312ToUTF8(gb2312,utf8);?? ????????int?len?=?UTF8ToUnicode(OutUnicode,utf8);?? ????????return?len;?? ????}?? ?????? //?? ?? ?????? ?? //?? ?? ?????/**************************************************************************? ?????*???????????????????????????????????????????????????????????????????????? ?????*??函數名:??HexToString??????????????????????????????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??描??述:??16進制?轉為?字符串??????????????????????????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??參??數:??IN：const?char?*pHex，IN：unsigned?long?hexLen,? ?????*???????????OUT：char?*pByteString???????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??返??回:??成功：0?，???失敗：1、2?????????????????????????????????????????? ?????*??? ?????*??作??者：?liuguanglin??????? ?????*? ????**************************************************************************/?? ????DWORD?HexToString(/*IN*/??const?char????*?pHex,?? ??????????????????????/*IN*/??DWORD???????????hexLen,?? ??????????????????????/*OUT*/?char??????????*?pByteString)?? ????{?? ????????unsigned?long?i;?? ??? ????????if?(pHex==NULL)?? ????????????return?1;?? ?????????? ????????if(hexLen?<=?0)?? ????????????return?2;?? ?????????? ????????for(i=0;i<hexLen;i++)?? ????????{?? ????????????if(((pHex[i]&0xf0)>>4)>=0?&&?((pHex[i]&0xf0)>>4)<=9)?? ????????????????pByteString[2*i]=((pHex[i]&0xf0)>>4)+0x30;?? ????????????else?if(((pHex[i]&0xf0)>>4)>=10?&&?((pHex[i]&0xf0)>>4)<=16)?? ????????????????pByteString[2*i]=((pHex[i]&0xf0)>>4)+0x37;???//??小寫：0x37?改為?0x57??? ?????????????? ????????????if((pHex[i]&0x0f)>=0?&&?(pHex[i]&0x0f)<=9)?? ????????????????pByteString[2*i+1]=(pHex[i]&0x0f)+0x30;?? ????????????else?if((pHex[i]&0x0f)>=10?&&?(pHex[i]&0x0f)<=16)?? ????????????????pByteString[2*i+1]=(pHex[i]&0x0f)+0x37;??????//??小寫：0x37?改為?0x57??? ????????}?? ????????return?0;?? ????}?? ?? ????/**************************************************************************? ?????*???????????????????????????????????????????????????????????????????????? ?????*??函數名:??StringToHex??????????????????????????????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??描??述:??字符串?轉為?16進制??????????????????????????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??參??數:??IN：const?char?*pHexBYTE，IN：DWORD?dwStrLen,OUT：BYTE?*pbHex???????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??返??回:??成功：0?，???失敗：1、2?????????????????????????????????????????? ?????*???? ?????*??作??者：?liuguanglin? ?????*? ????**************************************************************************/?? ????DWORD?StringToHex(/*IN*/??const?BYTE?*?pByteString,?? ??????????????????????/*IN?*/?DWORD????????dwStrLen,?? ??????????????????????/*OUT*/?BYTE???????*?pbHex)???? ????{?? ????????DWORD?i;?? ????????DWORD?dwRet;?? ????????unsigned?char?*?pTempBuf=NULL;?? ?????????? ????????if?(pByteString==NULL?||?pbHex==NULL)?? ????????????return?1;??? ?????????? ????????if(dwStrLen?<=?0)?? ????????????return?2;?? ?????????? ????????if?((dwStrLen%2)!=0)?? ????????{?? ????????????pTempBuf=(BYTE*)malloc(dwStrLen+2);?? ????????????pTempBuf[0]=0x30;?? ????????????memcpy(&pTempBuf[1],pByteString,sizeof(BYTE)*dwStrLen);?? ????????????dwRet=StringToHex(pTempBuf,dwStrLen+1,pbHex);?? ????????????free(pTempBuf);?? ????????????return?dwRet;?? ????????}?? ????????else?? ????????{??? ????????????for(i=0;i<dwStrLen;i++)?? ????????????{?? ????????????????if(i%2==0)?? ????????????????{?? ????????????????????if(pByteString[i]>='0'?&&?pByteString[i]<='9')?? ????????????????????????pbHex[i/2]=(pByteString[i]-0x30)<<4;?? ????????????????????else?if(pByteString[i]>='a'?&&?pByteString[i]<='f')?? ????????????????????????pbHex[i/2]=(pByteString[i]-0x57)<<4;?? ????????????????????else?if(pByteString[i]>='A'?&&?pByteString[i]<='F')?? ????????????????????????pbHex[i/2]=(pByteString[i]-0x37)<<4;?? ????????????????????else?? ????????????????????????return?3;?? ????????????????}?? ????????????????else?? ????????????????{?? ????????????????????if(pByteString[i]>='0'?&&?pByteString[i]<='9')?? ????????????????????????pbHex[i/2]|=pByteString[i]-0x30;?? ????????????????????else?if(pByteString[i]>='a'?&&?pByteString[i]<='f')?? ????????????????????????pbHex[i/2]|=pByteString[i]-0x57;?? ????????????????????else?if(pByteString[i]>='A'?&&?pByteString[i]<='F')?? ????????????????????????pbHex[i/2]|=pByteString[i]-0x37;?? ????????????????????else?? ????????????????????????return?4;?? ????????????????}?? ????????????}???? ????????}?? ????????return?0;?? ????}?? ?? ????/*****************************************? ????HEX?到?ASCII?的轉換函數? ????入口參數：?data:?轉換數據的入口指針? ????buffer:?轉換后數據入口指針? ????len?:?需要轉換的長度? ????返回參數：轉換后數據長度? ????*******************************************/?? ????int??hex_2_ascii(char?*data,?char?*buffer,?int?len)?? ????{?? ????????const?char?ascTable[17]?=?{"0123456789ABCDEF"};?? ????????char?*tmp_p?=?buffer;?? ????????int?i,?pos;?? ????????pos?=?0;?? ?????????? ????????for(i?=?0;?i?<?len;?i++)?? ????????{?? ????????????tmp_p[pos++]?=?ascTable[data[i]>>4&0x0f];?? ????????????tmp_p[pos++]?=?ascTable[data[i]?&?0x0f];?? ????????}?? ????????tmp_p[pos]?=?'\0';?? ????????return?pos;?? ????}?? ?? ????/*****************************************? ????ASCII?到?HEX?的轉換函數? ????入口參數：?O_data:?轉換數據的入口指針，? ????N_data:?轉換后新數據的入口指針? ????len?:?需要轉換的長度? ????返回參數：-1:?轉換失敗? ????其它：轉換后數據長度? ????注意：O_data[]數組中的數據在轉換過程中會被修改。? ????****************************************/?? ????int??ascii_2_hex(char?*O_data,char?*N_data,?int?len)?? ????{?? ????????int?i,j,tmp_len;?? ????????char?tmpData;?? ????????for(i?=?0;?i?<?len;?i++)?? ????????{?? ????????????if?((O_data[i]?>=?'0')?&&?(O_data[i]?<=?'9'))?? ????????????{?? ????????????????tmpData?=?O_data[i]?-?'0';?? ????????????}?? ????????????else?if?((O_data[i]?>=?'A')?&&?(O_data[i]?<=?'F'))?//A....F?? ????????????{?? ????????????????tmpData?=?O_data[i]?-?0x37;?? ????????????}?? ????????????else?if((O_data[i]?>=?'a')?&&?(O_data[i]?<=?'f'))?//a....f?? ????????????{?? ????????????????tmpData?=?O_data[i]?-?0x57;?? ????????????}?? ????????????else{?? ????????????????return?-1;?? ????????????}?? ????????????O_data[i]?=?tmpData;?? ????????}?? ????????for(tmp_len?=?0,j?=?0;?j?<?i;?j+=2)?? ????????{?? ????????????N_data[tmp_len++]?=?(O_data[j]<<4)?|?O_data[j+1];?? ????????}?? ????????return?tmp_len;?? ????}?? ?? ?? ?? ????/**************************************************************************? ?????*???????????????????????????????????????????????????????????????????????? ?????*??函數名:??Soft_swap??????????????????????????????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??描??述:??RSA密鑰?倒序?????????????????????????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??參??數:??IN:?void?*dst,?IN:?const?void?*src,?IN:?size_t?count???????????? ?????*????????????????????????????????????????????????????????????????????????? ?????*??返??回:??無??????????????????????????????????????? ?????*???? ?????*??作??者：?liuguanglin? ????**************************************************************************/?? ????void?Soft_swap(void?*dst,const?void?*src,size_t?count)?? ????{?? ????????int?i;?? ????????unsigned?char?*t;?? ????????unsigned?char?*q?=?(unsigned?char?*)dst;?? ????????unsigned?char?*p?=?(unsigned?char*)?src;?? ????????t?=?q;?? ????????if(t?==?p)?? ????????{?? ????????????q?=?(unsigned?char?*)malloc(count);?? ????????????assert(q);?? ????????}?? ????????for(?i=0;?(size_t)?i<count;?i++?)?q[count-1?-?i]?=?p[i];?? ????????if(t?==?p)?{?? ????????????memcpy(p,?q,?count);?? ????????????free(q);?? ????????}?? ?? ????}?? ??? ????//??編碼轉換???? ?? ?????UTF8?convert?to?GB2312?? ????VOID?UTF82GB2312(?/*IN*/?const?char?*?utf8,?/*?OUT?*/?const?char?*?gb2312?)?? ????{?? ????????int?nLen?=?MultiByteToWideChar(?CP_UTF8,?0,?utf8?,?-1,?NULL,?0?);?? ?????????? ????????USHORT*?pwszGB2312?=?new?USHORT[?nLen?+?1?];?? ????????RtlZeroMemory(?pwszGB2312,?nLen?*?2?+?2?);?? ?????????? ????????MultiByteToWideChar(?CP_UTF8,?0,?utf8?,?-1,?pwszGB2312,?nLen?);?? ?????????? ????????nLen?=?WideCharToMultiByte(?CP_ACP,?0,?pwszGB2312,?-1,?NULL,?0,?NULL,?NULL?);?? ?????????? ????????CHAR*?pszGB2312?=?new?CHAR[?nLen?+?1?];?? ????????RtlZeroMemory(?pszGB2312,?nLen?+?1?);?? ?????????? ????????WideCharToMultiByte(?CP_ACP,?0,?pwszGB2312,?-1,?pszGB2312,?nLen,?NULL,?NULL?);?? ?????????? ????????gb2312?=?pszGB2312;?? ?????????? ????????delete?[]?pszGB2312;?? ????????delete?[]?pwszGB2312;?? ????}?? ?? ?????GB2312?convert?to?UTF8?? ????VOID?GB23122UTF8(?/*IN*/?const?char?*?gb2312,?/*?OUT?*/?const?char?*?utf8?)?? ????{?? ????????int?nLen?=?MultiByteToWideChar(?CP_ACP,?0,?gb2312?,?-1,?NULL,?0?);?? ?????????? ????????USHORT*?pwszUTF8?=?new?USHORT[?nLen?+?1?];?? ????????RtlZeroMemory(?pwszUTF8,?nLen?*?2?+?2?);?? ?????????? ????????MultiByteToWideChar(?CP_ACP,?0,?gb2312?,?-1,?pwszUTF8,?nLen?);?? ?????????? ????????nLen?=?WideCharToMultiByte(?CP_UTF8,?0,?pwszUTF8,?-1,?NULL,?0,?NULL,?NULL?);?? ?????????? ????????CHAR*?pszUTF8?=?new?CHAR[?nLen?+?1?];?? ????????RtlZeroMemory(?pszUTF8,?nLen?+?1?);?? ?????????? ????????WideCharToMultiByte(?CP_UTF8,?0,?pwszUTF8,?-1,?pszUTF8,?nLen,?NULL,?NULL?);?? ?????????? ????????utf8?=?pszUTF8;?? ?????????? ????????delete?[]?pszUTF8;?? ????????delete?[]?pwszUTF8;?? ????}??? ?? ?? ?? ?????? //-----------------------------------------------??JNI?部分??---------------------------------------?? /*? ????java內部是使用16bit的unicode編碼（UTF-16）來表示字符串的，無論中文英文都是2字節；? ????jni內部是使用UTF-8編碼來表示字符串的，UTF-8是變長編碼的unicode，一般ascii字符是1字節，中文是3字節；? ????c/c++使用的是原始數據，ascii就是一個字節了，中文一般是GB2312編碼，用兩個字節來表示一個漢字。? */?? ?????? ?? ?? ?? ????//??測試Ok?? ????//?只適用于?window平臺?? ????char*?jstringToWindows(?JNIEnv?*env,?jstring?jstr?)?? ????{?//?unicode(UTF-16)?轉換成?GB2312?? ????????int?length?=?(env)->GetStringLength(jstr?);?? ????????const?jchar*?jcstr?=?(env)->GetStringChars(jstr,?0?);?? ????????char*?rtn?=?(char*)malloc(?length*2+1?);?? ????????int?size?=?0;?? ????????size?=?WideCharToMultiByte(?CP_ACP,?0,?(LPCWSTR)jcstr,?length,?rtn,(length*2+1),?NULL,?NULL?);?? ????????if(?size?<=?0?)?? ????????????return?NULL;?? ????????(env)->ReleaseStringChars(jstr,?jcstr?);?? ????????rtn[size]?=?0;?? ????????return?rtn;?? ????}?? ?? ?? ????//??測試Ok?? ????//??只適用于?window平臺?? ????jstring?WindowsTojstring(?JNIEnv*?env,const?char*?str?)?? ????{???//GB2312轉換成?unicode(UTF-16)?? ????????jstring?rtn?=?0;?? ????????int?slen?=?strlen(str);?? ????????unsigned?short?*?buffer?=?0;?? ????????if(?slen?==?0?)?? ????????????rtn?=?(env)->NewStringUTF(str?);?? ????????else?? ????????{?? ????????????int?length?=?MultiByteToWideChar(?CP_ACP,?0,?(LPCSTR)str,?slen,?NULL,?0?);?? ????????????buffer?=?(unsigned?short?*)malloc(?length*2?+?1?);?? ????????????if(?MultiByteToWideChar(?CP_ACP,?0,?(LPCSTR)str,?slen,?(LPWSTR)buffer,?length?)?>0?)?? ????????????{?? ????????????????rtn?=?(env)->NewString(??(jchar*)buffer,?length?);?? ????????????}?? ????????????//???rtn?=?(env)->NewString(??(jchar*)buffer,?length?);?? ????????}?? ????????if(?buffer?)?? ????????????free(?buffer?);?? ?????????? ????????return?rtn;?? ????}?? ?? ?? ????/************************************************************************/?? ????//java?jni中跨平臺(win32或linux,unix)??String轉為jstring?。??????????????????????????????????????????????????????????????????????? ????/************************************************************************/?? ????jstring?nativeTojstring(?JNIEnv*?env,const?char*?str?)?? ????{?????? ????????jclass?strClass?=?env->FindClass(?"Ljava/lang/String;");??? ????????jmethodID?ctorID?=?env->GetMethodID(?strClass,?"<init>",??? ????????????"([BLjava/lang/String;)V");?? ?????????? ????????if?(env->ExceptionCheck()?==?JNI_TRUE?||?str?==?NULL)?? ????????{?? ????????????env->ExceptionDescribe();?? ????????????env->ExceptionClear();?? ????????????printf("nativeTojstring函數轉換時,str為空/n");?? ????????????return?NULL;?? ????????}?? ?????????? ????????jbyteArray?bytes?=?env->NewByteArray(?strlen(str));??? ????????//如果str為空則拋出異常給jvm?? ?????????? ????????env->SetByteArrayRegion(?bytes,?0,??strlen(str),?(jbyte*)str);??? ????????jstring?encoding?=?env->NewStringUTF(?"GBK");??? ????????jstring?strRtn?=?(jstring)env->NewObject(?strClass,?ctorID,?bytes,??? ????????????encoding);?? ????????//釋放str內存?? ????????//?free(str);?? ????????return?strRtn;?? ????}?? ?? ????/************************************************************************/?? ????//java?jni中跨平臺(win32或linux,unix)??jstring轉為String?。??????????????????????????????????????????????????????????????????????? ????/************************************************************************/?? ????char*?jstringToNative(JNIEnv?*env,?jstring?jstr)?? ????{?? ????????if?(env->ExceptionCheck()?==?JNI_TRUE?||?jstr?==?NULL)?? ????????{?? ????????????env->ExceptionDescribe();?? ????????????env->ExceptionClear();?? ????????????printf("jstringToNative函數轉換時,傳入的參數str為空");?? ????????????return?NULL;?? ????????}?? ?????????? ????????jbyteArray?bytes?=?0;??? ????????jthrowable?exc;??? ????????char?*result?=?0;??? ????????if?(env->EnsureLocalCapacity(2)?<?0)?{??? ????????????return?0;?/*?out?of?memory?error?*/??? ????????}??? ????????jclass?jcls_str?=?env->FindClass("java/lang/String");??? ????????jmethodID?MID_String_getBytes?=?env->GetMethodID(jcls_str,?"getBytes",?"()[B");?? ?????????? ????????bytes?=?(jbyteArray)env->CallObjectMethod(jstr,?MID_String_getBytes);??? ????????exc?=?env->ExceptionOccurred();??? ????????if?(!exc)?{??? ????????????jint?len?=?env->GetArrayLength(?bytes);??? ????????????result?=?(char?*)malloc(len?+?1);??? ????????????if?(result?==?0)?{??? ????????????????//??這個好像是要在Linux?平臺下才有的函數，?? ????????????????//??window?報錯：error?C2065:?'JNU_ThrowByName'?:?undeclared?identifier?? ????????//??????JNU_ThrowByName(env,?"java/lang/OutOfMemoryError",?0);????? ????????????????env->DeleteLocalRef(bytes);??? ????????????????return?0;??? ????????????}??? ????????????env->GetByteArrayRegion(bytes,?0,?len,?(jbyte?*)result);??? ????????????result[len]?=?0;?/*?NULL-terminate?*/??? ????????}?else?{??? ????????????env->DeleteLocalRef(exc);??? ????????}??? ????????env->DeleteLocalRef(bytes);??? ????????return?(char*)result;?? ????}?? ?? }?? ?? ??? #endif??
//
/*
ASCII 英文一個字節
gb2312，gbk 中文兩個字節，英文一個字節
在中文系統中ansi一般指gb2312或gbk
GB2312、GBK都屬于雙字節字符集 (DBCS)
Utf-8 中文三個字節，英文一個字節
Unicode 中文兩個字節，英文兩個字
*/
//
//
/*
GB2312 中國國家 標準碼ANSI碼（American National Standards Institute）美國國家 標準學會 的 標準碼ASCII碼(America Standard Code for Information Interchange）美國信息交換標準碼你可以認為是不同的東西!ANSI碼僅在前126個與ASCII碼相同
*/
////
/*
/*
* 二進制、八進制、十進制、十六進制轉換 16進制和字符相互轉換
*/
////
/*java內部是使用16bit的unicode編碼（UTF-16）來表示字符串的，無論中文英文都是2字節；jni內部是使用UTF-8編碼來表示字符串的，UTF-8是變長編碼的unicode，一般ascii字符是1字節，中文是3字節；c/c++使用的是原始數據，ascii就是一個字節了，中文一般是GB2312編碼，用兩個字節來表示一個漢字。
*/
////
// CodeConver.h
//#ifndef CodeConver_H
#define CodeConver_Hnamespace CodeConvert
{#include <stdio.h>#include <string.h>#include <windows.h>#include <assert.h>#include <jni.h>#include <jni_md.h>// ANSI To Unicode// 測試通過wchar_t * ANSIToUnicode( const char* str ){int textlen ;wchar_t * result;textlen = MultiByteToWideChar( CP_ACP, 0, str,-1, NULL,0 ); if (textlen ==0){return NULL;}result = (wchar_t *)malloc((textlen+1)*sizeof(wchar_t)); memset(result,0,(textlen+1)*sizeof(wchar_t)); MultiByteToWideChar(CP_ACP, 0,str,-1,(LPWSTR)result,textlen ); return result; }/************************************************************************/// Unicode To ANSI(美國國家標準碼)// 測試通過// [2/8/2012 liu]/************************************************************************/char * UnicodeToANSI( const wchar_t* str ){char* result;int textlen;textlen = WideCharToMultiByte( CP_ACP, 0, str, -1, NULL, 0, NULL, NULL );if (textlen ==0){return NULL;}result =(char *)malloc((textlen+1)*sizeof(char));memset( result, 0, sizeof(char) * ( textlen + 1 ) );WideCharToMultiByte( CP_ACP, 0, str, -1, result, textlen, NULL, NULL );return result;}/************************************************************************/// UTF8 To Unicode// [2/8/2012 liu]// 測試通過/************************************************************************/int UTF8ToUnicode( wchar_t * &result,const char* utf8 ){int textlen ;textlen = MultiByteToWideChar( CP_UTF8, 0, (LPCSTR)utf8,-1, NULL,0 ); if (textlen == 0){return NULL;}result = (wchar_t *)malloc((textlen+1)*sizeof(wchar_t)); memset(result,0,textlen * 2 + 2); int widelen = MultiByteToWideChar(CP_UTF8, 0,(LPCSTR)utf8,-1,(LPWSTR)result,textlen ); return widelen-1;}/************************************************************************/// UnicodeToUTF8// ????????// [2/8/2012 liu]/************************************************************************/char * UnicodeToUTF8( const wchar_t* str ){char* result;int textlen;textlen = WideCharToMultiByte( CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL );if (textlen == 0){return NULL;}result =(char *)malloc((textlen+1)*sizeof(char));memset(result, 0, sizeof(char) * ( textlen + 1 ) );WideCharToMultiByte( CP_UTF8, 0, str, -1, result, textlen, NULL, NULL );return result;}/************************************************************************/// 寬字符 轉換為 多字符 Unicode - ANSI// ????????// [2/8/2012 liu]/************************************************************************/char* w2m(const wchar_t* wcs){int len;char* buf;if (wcs =NULL){return NULL;}len =wcstombs(NULL,wcs,0);if (len == 0)return NULL;buf = (char *)malloc(sizeof(char)*(len+1));memset(buf, 0, sizeof(char) *(len+1));len =wcstombs(buf,wcs,len+1);return buf;}/************************************************************************/// 多字符 轉換為 寬字符 ANSI - Unicode// // [2/8/2012 liu]/************************************************************************/wchar_t* multiByte_to_wideChar(const char* mbs){int len;wchar_t* buf;if (mbs == NULL){return NULL;}len =mbstowcs(NULL,mbs,0);if (len == 0)return NULL;buf = (wchar_t *)malloc(sizeof(wchar_t)*(len+1));memset(buf, 0, sizeof(wchar_t) *(len+1));len =mbstowcs(buf,mbs,len+1);return buf;}/************************************************************************/// ANSI To UTF8// ？？？？？？// [2/8/2012 liu]/************************************************************************/char* ANSIToUTF8(const char* str){return UnicodeToUTF8(ANSIToUnicode(str));}/************************************************************************/// UTF8 To ANSI// 測試通過// [2/8/2012 liu]/************************************************************************/char* UTF8ToANSI(const char* str){wchar_t * temp;if (str == NULL){return NULL;}UTF8ToUnicode(temp,str);return UnicodeToANSI(temp);}// 測試OK// UTF8 convert to GB2312void UTF8ToGB2312( const char * utf8, char * &gb2312 ){int nLen = MultiByteToWideChar( CP_UTF8, 0, utf8, -1, NULL, 0 );if (nLen == 0){gb2312 = NULL;return ;}USHORT* pwszGB2312 = new USHORT[ nLen + 1 ];RtlZeroMemory( pwszGB2312, nLen * 2 + 2 );MultiByteToWideChar( CP_UTF8, 0, utf8, -1, pwszGB2312, nLen );nLen = WideCharToMultiByte( CP_ACP, 0, pwszGB2312, -1, NULL, 0, NULL, NULL );CHAR* pszGB2312 = new CHAR[ nLen + 1 ];RtlZeroMemory( pszGB2312, nLen + 1 );WideCharToMultiByte( CP_ACP, 0, pwszGB2312, -1, pszGB2312, nLen, NULL, NULL );gb2312 = pszGB2312;// delete [] pszGB2312;// delete [] pwszGB2312;}// GB2312 convert to UTF8// 測試通過int GB2312ToUTF8( const char * gb2312,char * &utf8 ){int nLen1 = MultiByteToWideChar( CP_ACP, 0, gb2312, -1, NULL, 0 );if (nLen1 == 0){return 0;}USHORT* pwszUTF8 = new USHORT[ nLen1 + 1 ];RtlZeroMemory( pwszUTF8, nLen1 * 2 + 2 );MultiByteToWideChar( CP_ACP, 0, gb2312, -1, pwszUTF8, nLen1 );int nLen = WideCharToMultiByte( CP_UTF8, 0, pwszUTF8, -1, NULL, 0, NULL, NULL );CHAR* pszUTF8 = new CHAR[ nLen + 1 ];RtlZeroMemory( pszUTF8, nLen + 1 );WideCharToMultiByte( CP_UTF8, 0, pwszUTF8, -1, pszUTF8, nLen, NULL, NULL );utf8 = pszUTF8;return nLen1-1;// delete [] pszUTF8;// delete [] pwszUTF8;}// Gb2312 To Unicode// 測試通過int Gb2312ToUnicode(wchar_t * &OutUnicode,const char *gb2312){char * utf8 = NULL;if (gb2312==NULL){OutUnicode = NULL;return 0;}GB2312ToUTF8(gb2312,utf8);int len = UTF8ToUnicode(OutUnicode,utf8);return len;}/////*************************************************************************** * 函數名: HexToString * * 描 述: 16進制 轉為 字符串 * * 參 數: IN：const char *pHex，IN：unsigned long hexLen,* OUT：char *pByteString * * 返 回: 成功：0 ， 失敗：1、2 * * 作 者： liuguanglin ***************************************************************************/DWORD HexToString(/*IN*/ const char * pHex,/*IN*/ DWORD hexLen,/*OUT*/ char * pByteString){unsigned long i;if (pHex==NULL)return 1;if(hexLen <= 0)return 2;for(i=0;i<hexLen;i++){if(((pHex[i]&0xf0)>>4)>=0 && ((pHex[i]&0xf0)>>4)<=9)pByteString[2*i]=((pHex[i]&0xf0)>>4)+0x30;else if(((pHex[i]&0xf0)>>4)>=10 && ((pHex[i]&0xf0)>>4)<=16)pByteString[2*i]=((pHex[i]&0xf0)>>4)+0x37; // 小寫：0x37 改為 0x57 if((pHex[i]&0x0f)>=0 && (pHex[i]&0x0f)<=9)pByteString[2*i+1]=(pHex[i]&0x0f)+0x30;else if((pHex[i]&0x0f)>=10 && (pHex[i]&0x0f)<=16)pByteString[2*i+1]=(pHex[i]&0x0f)+0x37; // 小寫：0x37 改為 0x57 }return 0;}/*************************************************************************** * 函數名: StringToHex * * 描 述: 字符串 轉為 16進制 * * 參 數: IN：const char *pHexBYTE，IN：DWORD dwStrLen,OUT：BYTE *pbHex * * 返 回: 成功：0 ， 失敗：1、2 * * 作 者： liuguanglin***************************************************************************/DWORD StringToHex(/*IN*/ const BYTE * pByteString,/*IN */ DWORD dwStrLen,/*OUT*/ BYTE * pbHex) {DWORD i;DWORD dwRet;unsigned char * pTempBuf=NULL;if (pByteString==NULL || pbHex==NULL)return 1; if(dwStrLen <= 0)return 2;if ((dwStrLen%2)!=0){pTempBuf=(BYTE*)malloc(dwStrLen+2);pTempBuf[0]=0x30;memcpy(&pTempBuf[1],pByteString,sizeof(BYTE)*dwStrLen);dwRet=StringToHex(pTempBuf,dwStrLen+1,pbHex);free(pTempBuf);return dwRet;}else{ for(i=0;i<dwStrLen;i++){if(i%2==0){if(pByteString[i]>='0' && pByteString[i]<='9')pbHex[i/2]=(pByteString[i]-0x30)<<4;else if(pByteString[i]>='a' && pByteString[i]<='f')pbHex[i/2]=(pByteString[i]-0x57)<<4;else if(pByteString[i]>='A' && pByteString[i]<='F')pbHex[i/2]=(pByteString[i]-0x37)<<4;elsereturn 3;}else{if(pByteString[i]>='0' && pByteString[i]<='9')pbHex[i/2]|=pByteString[i]-0x30;else if(pByteString[i]>='a' && pByteString[i]<='f')pbHex[i/2]|=pByteString[i]-0x57;else if(pByteString[i]>='A' && pByteString[i]<='F')pbHex[i/2]|=pByteString[i]-0x37;elsereturn 4;}} }return 0;}/*****************************************HEX 到 ASCII 的轉換函數入口參數： data: 轉換數據的入口指針buffer: 轉換后數據入口指針len : 需要轉換的長度返回參數：轉換后數據長度*******************************************/int hex_2_ascii(char *data, char *buffer, int len){const char ascTable[17] = {"0123456789ABCDEF"};char *tmp_p = buffer;int i, pos;pos = 0;for(i = 0; i < len; i++){tmp_p[pos++] = ascTable[data[i]>>4&0x0f];tmp_p[pos++] = ascTable[data[i] & 0x0f];}tmp_p[pos] = '\0';return pos;}/*****************************************ASCII 到 HEX 的轉換函數入口參數： O_data: 轉換數據的入口指針，N_data: 轉換后新數據的入口指針len : 需要轉換的長度返回參數：-1: 轉換失敗其它：轉換后數據長度注意：O_data[]數組中的數據在轉換過程中會被修改。****************************************/int ascii_2_hex(char *O_data,char *N_data, int len){int i,j,tmp_len;char tmpData;for(i = 0; i < len; i++){if ((O_data[i] >= '0') && (O_data[i] <= '9')){tmpData = O_data[i] - '0';}else if ((O_data[i] >= 'A') && (O_data[i] <= 'F')) //A....F{tmpData = O_data[i] - 0x37;}else if((O_data[i] >= 'a') && (O_data[i] <= 'f')) //a....f{tmpData = O_data[i] - 0x57;}else{return -1;}O_data[i] = tmpData;}for(tmp_len = 0,j = 0; j < i; j+=2){N_data[tmp_len++] = (O_data[j]<<4) | O_data[j+1];}return tmp_len;}/*************************************************************************** * 函數名: Soft_swap * * 描 述: RSA密鑰 倒序 * * 參 數: IN: void *dst, IN: const void *src, IN: size_t count * * 返 回: 無 * * 作 者： liuguanglin**************************************************************************/void Soft_swap(void *dst,const void *src,size_t count){int i;unsigned char *t;unsigned char *q = (unsigned char *)dst;unsigned char *p = (unsigned char*) src;t = q;if(t == p){q = (unsigned char *)malloc(count);assert(q);}for( i=0; (size_t) i<count; i++ ) q[count-1 - i] = p[i];if(t == p) {memcpy(p, q, count);free(q);}}// 編碼轉換 UTF8 convert to GB2312VOID UTF82GB2312( /*IN*/ const char * utf8, /* OUT */ const char * gb2312 ){int nLen = MultiByteToWideChar( CP_UTF8, 0, utf8 , -1, NULL, 0 );USHORT* pwszGB2312 = new USHORT[ nLen + 1 ];RtlZeroMemory( pwszGB2312, nLen * 2 + 2 );MultiByteToWideChar( CP_UTF8, 0, utf8 , -1, pwszGB2312, nLen );nLen = WideCharToMultiByte( CP_ACP, 0, pwszGB2312, -1, NULL, 0, NULL, NULL );CHAR* pszGB2312 = new CHAR[ nLen + 1 ];RtlZeroMemory( pszGB2312, nLen + 1 );WideCharToMultiByte( CP_ACP, 0, pwszGB2312, -1, pszGB2312, nLen, NULL, NULL );gb2312 = pszGB2312;delete [] pszGB2312;delete [] pwszGB2312;}GB2312 convert to UTF8VOID GB23122UTF8( /*IN*/ const char * gb2312, /* OUT */ const char * utf8 ){int nLen = MultiByteToWideChar( CP_ACP, 0, gb2312 , -1, NULL, 0 );USHORT* pwszUTF8 = new USHORT[ nLen + 1 ];RtlZeroMemory( pwszUTF8, nLen * 2 + 2 );MultiByteToWideChar( CP_ACP, 0, gb2312 , -1, pwszUTF8, nLen );nLen = WideCharToMultiByte( CP_UTF8, 0, pwszUTF8, -1, NULL, 0, NULL, NULL );CHAR* pszUTF8 = new CHAR[ nLen + 1 ];RtlZeroMemory( pszUTF8, nLen + 1 );WideCharToMultiByte( CP_UTF8, 0, pwszUTF8, -1, pszUTF8, nLen, NULL, NULL );utf8 = pszUTF8;delete [] pszUTF8;delete [] pwszUTF8;} //----------------------------------------------- JNI 部分 ---------------------------------------
/*java內部是使用16bit的unicode編碼（UTF-16）來表示字符串的，無論中文英文都是2字節；jni內部是使用UTF-8編碼來表示字符串的，UTF-8是變長編碼的unicode，一般ascii字符是1字節，中文是3字節；c/c++使用的是原始數據，ascii就是一個字節了，中文一般是GB2312編碼，用兩個字節來表示一個漢字。
*/// 測試Ok// 只適用于 window平臺char* jstringToWindows( JNIEnv *env, jstring jstr ){ // unicode(UTF-16) 轉換成 GB2312int length = (env)->GetStringLength(jstr );const jchar* jcstr = (env)->GetStringChars(jstr, 0 );char* rtn = (char*)malloc( length*2+1 );int size = 0;size = WideCharToMultiByte( CP_ACP, 0, (LPCWSTR)jcstr, length, rtn,(length*2+1), NULL, NULL );if( size <= 0 )return NULL;(env)->ReleaseStringChars(jstr, jcstr );rtn[size] = 0;return rtn;}// 測試Ok// 只適用于 window平臺jstring WindowsTojstring( JNIEnv* env,const char* str ){ //GB2312轉換成 unicode(UTF-16)jstring rtn = 0;int slen = strlen(str);unsigned short * buffer = 0;if( slen == 0 )rtn = (env)->NewStringUTF(str );else{int length = MultiByteToWideChar( CP_ACP, 0, (LPCSTR)str, slen, NULL, 0 );buffer = (unsigned short *)malloc( length*2 + 1 );if( MultiByteToWideChar( CP_ACP, 0, (LPCSTR)str, slen, (LPWSTR)buffer, length ) >0 ){rtn = (env)->NewString( (jchar*)buffer, length );}// rtn = (env)->NewString( (jchar*)buffer, length );}if( buffer )free( buffer );return rtn;}/************************************************************************///java jni中跨平臺(win32或linux,unix) String轉為jstring 。 /************************************************************************/jstring nativeTojstring( JNIEnv* env,const char* str ){ jclass strClass = env->FindClass( "Ljava/lang/String;"); jmethodID ctorID = env->GetMethodID( strClass, "<init>", "([BLjava/lang/String;)V");if (env->ExceptionCheck() == JNI_TRUE || str == NULL){env->ExceptionDescribe();env->ExceptionClear();printf("nativeTojstring函數轉換時,str為空/n");return NULL;}jbyteArray bytes = env->NewByteArray( strlen(str)); //如果str為空則拋出異常給jvmenv->SetByteArrayRegion( bytes, 0, strlen(str), (jbyte*)str); jstring encoding = env->NewStringUTF( "GBK"); jstring strRtn = (jstring)env->NewObject( strClass, ctorID, bytes, encoding);//釋放str內存// free(str);return strRtn;}/************************************************************************///java jni中跨平臺(win32或linux,unix) jstring轉為String 。 /************************************************************************/char* jstringToNative(JNIEnv *env, jstring jstr){if (env->ExceptionCheck() == JNI_TRUE || jstr == NULL){env->ExceptionDescribe();env->ExceptionClear();printf("jstringToNative函數轉換時,傳入的參數str為空");return NULL;}jbyteArray bytes = 0; jthrowable exc; char *result = 0; if (env->EnsureLocalCapacity(2) < 0) { return 0; /* out of memory error */ } jclass jcls_str = env->FindClass("java/lang/String"); jmethodID MID_String_getBytes = env->GetMethodID(jcls_str, "getBytes", "()[B");bytes = (jbyteArray)env->CallObjectMethod(jstr, MID_String_getBytes); exc = env->ExceptionOccurred(); if (!exc) { jint len = env->GetArrayLength( bytes); result = (char *)malloc(len + 1); if (result == 0) { // 這個好像是要在Linux 平臺下才有的函數，// window 報錯：error C2065: 'JNU_ThrowByName' : undeclared identifier// JNU_ThrowByName(env, "java/lang/OutOfMemoryError", 0); env->DeleteLocalRef(bytes); return 0; } env->GetByteArrayRegion(bytes, 0, len, (jbyte *)result); result[len] = 0; /* NULL-terminate */ } else { env->DeleteLocalRef(exc); } env->DeleteLocalRef(bytes); return (char*)result;}}#endif
總結
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