有三分代码
strCoding.h
strCoding.cpp
test.cpp
*******************************************************************************************************************************
- //这是个类strCoding (strCoding.h文件)
- #pragma once
- #include <iostream>
- #include <string>
- #include <windows.h>
- using namespace std;
- class strCoding
- {
- public:
- strCoding(void);
- ~strCoding(void);
- void UTF_8ToGB2312(string &pOut, char *pText, int pLen);//utf_8转为gb2312
- void GB2312ToUTF_8(string& pOut,char *pText, int pLen); //gb2312 转utf_8
- string UrlGB2312(char * str); //urlgb2312编码
- string UrlUTF8(char * str); //urlutf8 编码
- string UrlUTF8Decode(string str); //urlutf8解码
- string UrlGB2312Decode(string str); //urlgb2312解码
- private:
- void Gb2312ToUnicode(WCHAR* pOut,char *gbBuffer);
- void UTF_8ToUnicode(WCHAR* pOut,char *pText);
- void UnicodeToUTF_8(char* pOut,WCHAR* pText);
- void UnicodeToGB2312(char* pOut,WCHAR uData);
- char CharToInt(char ch);
- char StrToBin(char *str);
- };
//这是个类strCoding (strCoding.h文件) #pragma once #include <iostream> #include <string> #include <windows.h> using namespace std; class strCoding { public: strCoding(void); ~strCoding(void); void UTF_8ToGB2312(string &pOut, char *pText, int pLen);//utf_8转为gb2312 void GB2312ToUTF_8(string& pOut,char *pText, int pLen); //gb2312 转utf_8 string UrlGB2312(char * str); //urlgb2312编码 string UrlUTF8(char * str); //urlutf8 编码 string UrlUTF8Decode(string str); //urlutf8解码 string UrlGB2312Decode(string str); //urlgb2312解码 private: void Gb2312ToUnicode(WCHAR* pOut,char *gbBuffer); void UTF_8ToUnicode(WCHAR* pOut,char *pText); void UnicodeToUTF_8(char* pOut,WCHAR* pText); void UnicodeToGB2312(char* pOut,WCHAR uData); char CharToInt(char ch); char StrToBin(char *str); };
*******************************************************************************************************************************
- //这是个类strCoding (strCoding.cpp文件)
- #include "StdAfx.h"
- #include ".\strcoding.h"
- strCoding::strCoding(void)
- {
- }
- strCoding::~strCoding(void)
- {
- }
- void strCoding::Gb2312ToUnicode(WCHAR* pOut,char *gbBuffer)
- {
- ::MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,gbBuffer,2,pOut,1);
- return;
- }
- void strCoding::UTF_8ToUnicode(WCHAR* pOut,char *pText)
- {
- char* uchar = (char *)pOut;
- uchar[1] = ((pText[0] & 0x0F) << 4) + ((pText[1] >> 2) & 0x0F);
- uchar[0] = ((pText[1] & 0x03) << 6) + (pText[2] & 0x3F);
- return;
- }
- void strCoding::UnicodeToUTF_8(char* pOut,WCHAR* pText)
- {
- // 注意 WCHAR高低字的顺序,低字节在前,高字节在后
- char* pchar = (char *)pText;
- pOut[0] = (0xE0 | ((pchar[1] & 0xF0) >> 4));
- pOut[1] = (0x80 | ((pchar[1] & 0x0F) << 2)) + ((pchar[0] & 0xC0) >> 6);
- pOut[2] = (0x80 | (pchar[0] & 0x3F));
- return;
- }
- void strCoding::UnicodeToGB2312(char* pOut,WCHAR uData)
- {
- WideCharToMultiByte(CP_ACP,NULL,&uData,1,pOut,sizeof(WCHAR),NULL,NULL);
- return;
- }
- //做为解Url使用
- char strCoding:: CharToInt(char ch){
- if(ch>='0' && ch<='9')return (char)(ch-'0');
- if(ch>='a' && ch<='f')return (char)(ch-'a'+10);
- if(ch>='A' && ch<='F')return (char)(ch-'A'+10);
- return -1;
- }
- char strCoding::StrToBin(char *str){
- char tempWord[2];
- char chn;
- tempWord[0] = CharToInt(str[0]); //make the B to 11 -- 00001011
- tempWord[1] = CharToInt(str[1]); //make the 0 to 0 -- 00000000
- chn = (tempWord[0] << 4) | tempWord[1]; //to change the BO to 10110000
- return chn;
- }
- //UTF_8 转gb2312
- void strCoding::UTF_8ToGB2312(string &pOut, char *pText, int pLen)
- {
- char buf[4];
- char* rst = new char[pLen + (pLen >> 2) + 2];
- memset(buf,0,4);
- memset(rst,0,pLen + (pLen >> 2) + 2);
- int i =0;
- int j = 0;
- while(i < pLen)
- {
- if(*(pText + i) >= 0)
- {
- rst[j++] = pText[i++];
- }
- else
- {
- WCHAR Wtemp;
- UTF_8ToUnicode(&Wtemp,pText + i);
- UnicodeToGB2312(buf,Wtemp);
- unsigned short int tmp = 0;
- tmp = rst[j] = buf[0];
- tmp = rst[j+1] = buf[1];
- tmp = rst[j+2] = buf[2];
- //newBuf[j] = Ctemp[0];
- //newBuf[j + 1] = Ctemp[1];
- i += 3;
- j += 2;
- }
- }
- rst[j]='\0';
- pOut = rst;
- delete []rst;
- }
- //GB2312 转为 UTF-8
- void strCoding::GB2312ToUTF_8(string& pOut,char *pText, int pLen)
- {
- char buf[4];
- memset(buf,0,4);
- pOut.clear();
- int i = 0;
- while(i < pLen)
- {
- //如果是英文直接复制就可以
- if( pText[i] >= 0)
- {
- char asciistr[2]={0};
- asciistr[0] = (pText[i++]);
- pOut.append(asciistr);
- }
- else
- {
- WCHAR pbuffer;
- Gb2312ToUnicode(&pbuffer,pText+i);
- UnicodeToUTF_8(buf,&pbuffer);
- pOut.append(buf);
- i += 2;
- }
- }
- return;
- }
- //把str编码为网页中的 GB2312 url encode ,英文不变,汉字双字节 如%3D%AE%88
- string strCoding::UrlGB2312(char * str)
- {
- string dd;
- size_t len = strlen(str);
- for (size_t i=0;i<len;i++)
- {
- if(isalnum((BYTE)str[i]))
- {
- char tempbuff[2];
- sprintf(tempbuff,"%c",str[i]);
- dd.append(tempbuff);
- }
- else if (isspace((BYTE)str[i]))
- {
- dd.append("+");
- }
- else
- {
- char tempbuff[4];
- sprintf(tempbuff,"%%%X%X",((BYTE*)str)[i] >>4,((BYTE*)str)[i] %16);
- dd.append(tempbuff);
- }
- }
- return dd;
- }
- //把str编码为网页中的 UTF-8 url encode ,英文不变,汉字三字节 如%3D%AE%88
- string strCoding::UrlUTF8(char * str)
- {
- string tt;
- string dd;
- GB2312ToUTF_8(tt,str,(int)strlen(str));
- size_t len=tt.length();
- for (size_t i=0;i<len;i++)
- {
- if(isalnum((BYTE)tt.at(i)))
- {
- char tempbuff[2]={0};
- sprintf(tempbuff,"%c",(BYTE)tt.at(i));
- dd.append(tempbuff);
- }
- else if (isspace((BYTE)tt.at(i)))
- {
- dd.append("+");
- }
- else
- {
- char tempbuff[4];
- sprintf(tempbuff,"%%%X%X",((BYTE)tt.at(i)) >>4,((BYTE)tt.at(i)) %16);
- dd.append(tempbuff);
- }
- }
- return dd;
- }
- //把url GB2312解码
- string strCoding::UrlGB2312Decode(string str)
- {
- string output="";
- char tmp[2];
- int i=0,idx=0,ndx,len=str.length();
- while(i<len){
- if(str[i]=='%'){
- tmp[0]=str[i+1];
- tmp[1]=str[i+2];
- output += StrToBin(tmp);
- i=i+3;
- }
- else if(str[i]=='+'){
- output+=' ';
- i++;
- }
- else{
- output+=str[i];
- i++;
- }
- }
- return output;
- }
- //把url utf8解码
- string strCoding::UrlUTF8Decode(string str)
- {
- string output="";
- string temp =UrlGB2312Decode(str);//
- UTF_8ToGB2312(output,(char *)temp.data(),strlen(temp.data()));
- return output;
- }
//这是个类strCoding (strCoding.cpp文件) #include "StdAfx.h" #include ".\strcoding.h" strCoding::strCoding(void) { } strCoding::~strCoding(void) { } void strCoding::Gb2312ToUnicode(WCHAR* pOut,char *gbBuffer) { ::MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,gbBuffer,2,pOut,1); return; } void strCoding::UTF_8ToUnicode(WCHAR* pOut,char *pText) { char* uchar = (char *)pOut; uchar[1] = ((pText[0] & 0x0F) << 4) + ((pText[1] >> 2) & 0x0F); uchar[0] = ((pText[1] & 0x03) << 6) + (pText[2] & 0x3F); return; } void strCoding::UnicodeToUTF_8(char* pOut,WCHAR* pText) { // 注意 WCHAR高低字的顺序,低字节在前,高字节在后 char* pchar = (char *)pText; pOut[0] = (0xE0 | ((pchar[1] & 0xF0) >> 4)); pOut[1] = (0x80 | ((pchar[1] & 0x0F) << 2)) + ((pchar[0] & 0xC0) >> 6); pOut[2] = (0x80 | (pchar[0] & 0x3F)); return; } void strCoding::UnicodeToGB2312(char* pOut,WCHAR uData) { WideCharToMultiByte(CP_ACP,NULL,&uData,1,pOut,sizeof(WCHAR),NULL,NULL); return; } //做为解Url使用 char strCoding:: CharToInt(char ch){ if(ch>='0' && ch<='9')return (char)(ch-'0'); if(ch>='a' && ch<='f')return (char)(ch-'a'+10); if(ch>='A' && ch<='F')return (char)(ch-'A'+10); return -1; } char strCoding::StrToBin(char *str){ char tempWord[2]; char chn; tempWord[0] = CharToInt(str[0]); //make the B to 11 -- 00001011 tempWord[1] = CharToInt(str[1]); //make the 0 to 0 -- 00000000 chn = (tempWord[0] << 4) | tempWord[1]; //to change the BO to 10110000 return chn; } //UTF_8 转gb2312 void strCoding::UTF_8ToGB2312(string &pOut, char *pText, int pLen) { char buf[4]; char* rst = new char[pLen + (pLen >> 2) + 2]; memset(buf,0,4); memset(rst,0,pLen + (pLen >> 2) + 2); int i =0; int j = 0; while(i < pLen) { if(*(pText + i) >= 0) { rst[j++] = pText[i++]; } else { WCHAR Wtemp; UTF_8ToUnicode(&Wtemp,pText + i); UnicodeToGB2312(buf,Wtemp); unsigned short int tmp = 0; tmp = rst[j] = buf[0]; tmp = rst[j+1] = buf[1]; tmp = rst[j+2] = buf[2]; //newBuf[j] = Ctemp[0]; //newBuf[j + 1] = Ctemp[1]; i += 3; j += 2; } } rst[j]='\0'; pOut = rst; delete []rst; } //GB2312 转为 UTF-8 void strCoding::GB2312ToUTF_8(string& pOut,char *pText, int pLen) { char buf[4]; memset(buf,0,4); pOut.clear(); int i = 0; while(i < pLen) { //如果是英文直接复制就可以 if( pText[i] >= 0) { char asciistr[2]={0}; asciistr[0] = (pText[i++]); pOut.append(asciistr); } else { WCHAR pbuffer; Gb2312ToUnicode(&pbuffer,pText+i); UnicodeToUTF_8(buf,&pbuffer); pOut.append(buf); i += 2; } } return; } //把str编码为网页中的 GB2312 url encode ,英文不变,汉字双字节 如%3D%AE%88 string strCoding::UrlGB2312(char * str) { string dd; size_t len = strlen(str); for (size_t i=0;i<len;i++) { if(isalnum((BYTE)str[i])) { char tempbuff[2]; sprintf(tempbuff,"%c",str[i]); dd.append(tempbuff); } else if (isspace((BYTE)str[i])) { dd.append("+"); } else { char tempbuff[4]; sprintf(tempbuff,"%%%X%X",((BYTE*)str)[i] >>4,((BYTE*)str)[i] %16); dd.append(tempbuff); } } return dd; } //把str编码为网页中的 UTF-8 url encode ,英文不变,汉字三字节 如%3D%AE%88 string strCoding::UrlUTF8(char * str) { string tt; string dd; GB2312ToUTF_8(tt,str,(int)strlen(str)); size_t len=tt.length(); for (size_t i=0;i<len;i++) { if(isalnum((BYTE)tt.at(i))) { char tempbuff[2]={0}; sprintf(tempbuff,"%c",(BYTE)tt.at(i)); dd.append(tempbuff); } else if (isspace((BYTE)tt.at(i))) { dd.append("+"); } else { char tempbuff[4]; sprintf(tempbuff,"%%%X%X",((BYTE)tt.at(i)) >>4,((BYTE)tt.at(i)) %16); dd.append(tempbuff); } } return dd; } //把url GB2312解码 string strCoding::UrlGB2312Decode(string str) { string output=""; char tmp[2]; int i=0,idx=0,ndx,len=str.length(); while(i<len){ if(str[i]=='%'){ tmp[0]=str[i+1]; tmp[1]=str[i+2]; output += StrToBin(tmp); i=i+3; } else if(str[i]=='+'){ output+=' '; i++; } else{ output+=str[i]; i++; } } return output; } //把url utf8解码 string strCoding::UrlUTF8Decode(string str) { string output=""; string temp =UrlGB2312Decode(str);// UTF_8ToGB2312(output,(char *)temp.data(),strlen(temp.data())); return output; }
*******************************************************************************************************************************
- //test
- #include "stdafx.h"
- #include "strCoding.h"
- using namespace std;
- int main()
- {
- strCoding cfm;
- string keyword="大家好,欢迎你";
- string Temp="";
- string Output="";
- //把关键字做url的utf8编码
- Temp= cfm.UrlUTF8((char *)keyword.data());
- cout<<Temp<<endl;
- //把url的utf8编码的结果解码
- Temp =cfm.UrlUTF8Decode(Temp);
- cout<<Temp<<endl;
- //把关键字做url的gb2312编码
- Temp =cfm.UrlGB2312((char *)keyword.data());
- cout<<Temp<<endl;
- //把url的gb2312编码的结果解码
- Temp =cfm.UrlGB2312Decode(Temp);
- cout<<Temp<<endl;
- //把关键字GB2312转UTF_8
- cfm.GB2312ToUTF_8(Output,(char *)keyword.data(),strlen(keyword.data()));
- cout<<Output<<endl;
- //把GB2312转UTF_8转为中文
- cfm.UTF_8ToGB2312(Temp,(char *)Output.data(),strlen(Output.data()));
- cout<<Temp<<endl;
- //system("pasue");
- getchar();
- return 0;
- //
- }