C语言读写配置文件

CException.h
/************************************************************************/
/*             [e-mail]       */
/************************************************************************/
/************************************************************************/
#include "stdio.h"       
#include "conio.h" 
#include "signal.h"      
#include "setjmp.h"
#include "assert.h"
#ifdef __cplusplus
#include "iostream"              
#include "exception"
extern "C"{
#define dllexport __declspec(dllexport)            
jmp_buf Jmp_Buf; 
int E; 
#define Exception 0x00000 
#define e Exception 
#define try if(!(E=setjmp(Jmp_Buf))) 
#define last_error() E 
#define catch(val) else 
#define throw(val) longjmp(Jmp_Buf,val)     
#define check(expersion) assert(expersion)
#define GetError() errno      
dllexport void sig_usr(int);
dllexport char* getTime();   
}                
#else
#define dllexport __declspec(dllexport)            
jmp_buf Jmp_Buf; 
int E; 
#define Exception 0x00000 
#define e Exception 
#define try if(!(E=setjmp(Jmp_Buf))) 
#define last_error() E 
#define catch(val) else 
#define throw(val) longjmp(Jmp_Buf,val)     
#define check(expersion) assert(expersion)
#define GetError() errno      
dllexport void sig_usr(int);
dllexport char* getTime();
              
#endif 


File.h
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#define SIZE 128
#include "CException.h"
#define export __declspec(dllexport)
//读取配置文件.
int read_file(char* filename,char* key,char* value);
//写配置文件.
int write_file(char* filename,char* key,char* value);
//释放文件.
int release();
//写入节.
int write_section(char* filename,char* section);
int read_section(char* filename);
int getAuthor(char* value);
void getVersion(char* value);

File.c
#include "File.h"
#include <string.h>

int read_file(char* filename,char* key,char* value)
{
int flag=0;
char buffer[SIZE];
FILE *file=fopen(filename,"r");
try
   {
    if(file==NULL)
    {
     flag=1;
     throw(flag);
    }
    else
    {
     while(fgets(buffer,SIZE,file)!=NULL)
     {
      int i=0,j=0,len=strlen(key);
      while(buffer[i]!='\0')
      {
        if(buffer[i]=='$'&&buffer[i+len+1]=='=')
        {
         j=i+len+2;
          while(buffer[j]!='\0'&&buffer[j]!=';')
          {
           int h=0;
           if(buffer[i+1]==key[i])
           {
            //printf("%c",buffer[j]);
            value[j-i-len-2]=buffer[j];
           }
           j++;
          }
         break;
        }
        else if(buffer[i]=='/'&&buffer[i+1]=='/'||buffer[i]==';')
        {
         break;
         //comment
        }
        
       
      i++;
      }
     }
    }
   }
   catch(Exception)
   {
    flag=2;
    fclose(file);
    printf("can't open file %s",filename);
    exit(1);
   }
fflush(file);
fclose(file); 
return flag;

}

int write_file(char* filename,char* key,char* value)
{
int flag=0;
FILE* file;
file=fopen(filename,"a");
try
{
   if(file==NULL)
   {
   flag=1;
   throw(flag);
   }
   fprintf(file,"$%s=%s\n",key,value);
}
catch(Exception)
{ 
   printf("Can't write file %s",filename);
   exit(1);
}
fflush(file);
fclose(file);
return flag; 
}

int write_section(char* filename,char* section)
{
int flag=0;
FILE* file=NULL;
try
{
   file=fopen(filename,"a");
   if(file!=NULL)
   {
    fprintf(file,"[%s]\n",section);
   }
   else
   {
    int flag=1;
    throw(flag);
   }
}
catch(Exception)
{
   printf("can't open file %s",filename);
   exit(0);
}
fflush(file);
fclose(file);
return flag; 
}
int release()
{
int flag=1;
return flag;
}
int read_section(char* filename)
{
return 0;
}
int getAuthor(char* value)
{
char author[128]="武汉软件工程职业学院计算机应用系孟德军";
int i=0;
for(i=0;i<strlen(author);i++)
{
value[i]=author[i];
}
return 0;
}
void getVersion(char* value)
{
char version[128]="2009//05//01";
int i=0;
for(i=0;i<strlen(version);i++)
{
value[i]=version[i];
}

}
/**************************************************************************
void main()
{
char* str=NULL;
char author[120];
char buffer[128];
char buffer1[128];
char buffer2[128];
read_file("F:\\exercise\\C++!C\\sys.ini","password",buffer);
read_file("F:\\exercise\\C++!C\\sys.ini","username",buffer1);
read_file("F:\\exercise\\C++!C\\sys.ini","driver",buffer2);
printf("password=%s\n",buffer);
printf("\n");
printf("username=%s\n",buffer1);
printf("\n");
printf("driver=%s\n",buffer2);
getAuthor(author);
printf("\n");
printf("author=%s",author);
release();
}
****************************************************************************/

sys.ini

[mysql]
$username=root
$password=123456
$driver=com.mysql.jdbc.Driver
$url=jdbc:mysql://localhost:3306/mysql

动态链接库测试:

#include <windows.h>
typedef (* write)(char* filename,char* key,char* value);
typedef (* writes)(char* filename,char* value);
typedef (* read)(char* filename,char* key,char* value);
HINSTANCE hInstance;
write write_file;
writes write_section;
read read_file;
char buffer[128];
char buffer1[128];
void main()
{
hInstance=LoadLibrary("File.dll");
if(hInstance!=NULL)
{

write_file=(write)GetProcAddress(hInstance,"write_file");
write_section=(writes)GetProcAddress(hInstance,"write_section");
read_file=(read)GetProcAddress(hInstance,"read_file");

write_section("config.ini","mysql");
write_file("config.ini","username","root");
write_file("config.ini","password","admin");
write_file("config.ini","driverClassName","com.mysql.jdbc.Driver");
write_file("config.ini","url","jdbc:mysql://localhost:3306/user");

read_file("config.ini","username",buffer);
printf("username=%s",buffer);

read_file("config.ini","password",buffer1);
printf("password=%s",buffer1);
}
else
{
printf("can't load dynamic file File.dll");
}
FreeLibrary(hInstance);
}

 

评论

1 楼 wida 2011-03-04  

while(buffer[i]!='\0') 
      { 
        if(buffer[i]=='$'&&buffer[i+len+1]=='=') 
        { 
         j=i+len+2; 
          while(buffer[j]!='\0'&&buffer[j]!=';') 
          { 
           int h=0; 
           if(buffer[i+1]==key[i]) 
           { 
            //printf("%c",buffer[j]); 
            value[j-i-len-2]=buffer[j]; 
           } 
           j++; 
          } 
         break; 
        } 


这一块逻辑有问题， 有 passrrrr 试试吧