java 读写 ini 配置文件

package   mytools; 
  
import  java.io.BufferedReader; 
import  java.io.BufferedWriter; 
import  java.io.FileReader; 
import  java.io.FileWriter; 
import  java.io.IOException; 
import  java.util.regex.Matcher; 
import  java.util.regex.Pattern; 
  
/** */ /** 
* 这是个配置文件操作类，用来读取和设置ini配置文件 
* @author 由月 
* @version 2004-08-18 
*/ 
public   final   class  ConfigurationFile  { 
/** */ /** 
* 从ini配置文件中读取变量的值 
* @param file 配置文件的路径 
* @param section 要获取的变量所在段名称 
* @param variable 要获取的变量名称 
* @param defaultValue 变量名称不存在时的默认值 
* @return 变量的值 
* @throws IOException 抛出文件操作可能出现的io异常 
*/ 
public   static  String getProfileString( 
String file, 
String section, 
String variable, 
String defaultValue) 
throws  IOException  { 
String strLine, value  =   “” ; 
BufferedReader bufferedReader  =   new  BufferedReader( new  FileReader(file)); 
boolean  isInSection  =   false ; 
try   { 
while  ((strLine  =  bufferedReader.readLine())  !=   null )  { 
strLine  =  strLine.trim(); 
strLine  =  strLine.split( ” [;] ” )[ 0 ]; 
Pattern p; 
Matcher m; 
p  =  Pattern.compile( ” file://[//s*.*//s*//] ” ); 
m  =  p.matcher((strLine)); 
if  (m.matches())  { 
p  =  Pattern.compile( ” file://[//s* "   +  section  +   " file://s*//] ” ); 
m  =  p.matcher(strLine); 
if  (m.matches())  { 
isInSection  =   true ; 
}   else   { 
isInSection  =   false ; 
} 
} 
if  (isInSection  ==   true )  { 
strLine  =  strLine.trim(); 
String[] strArray  =  strLine.split( ” = ” ); 
if  (strArray.length  ==   1 )  { 
value  =  strArray[ 0 ].trim(); 
if  (value.equalsIgnoreCase(variable))  { 
value  =   “” ; 
return  value; 
} 
}   else   if  (strArray.length  ==   2 )  { 
value  =  strArray[ 0 ].trim(); 
if  (value.equalsIgnoreCase(variable))  { 
value  =  strArray[ 1 ].trim(); 
return  value; 
} 
}   else   if  (strArray.length  >   2 )  { 
value  =  strArray[ 0 ].trim(); 
if  (value.equalsIgnoreCase(variable))  { 
value  =  strLine.substring(strLine.indexOf( ” = ” )  +   1 ).trim(); 
return  value; 
} 
} 
} 
} 
}   finally   { 
bufferedReader.close(); 
} 
return  defaultValue; 
} 
/** */ /** 
* 修改ini配置文件中变量的值 
* @param file 配置文件的路径 
* @param section 要修改的变量所在段名称 
* @param variable 要修改的变量名称 
* @param value 变量的新值 
* @throws IOException 抛出文件操作可能出现的io异常 
*/ 
public   static   boolean  setProfileString( 
String file, 
String section, 
String variable, 
String value) 
throws  IOException  { 
String fileContent, allLine,strLine, newLine, remarkStr; 
String getValue; 
BufferedReader bufferedReader  =   new  BufferedReader( new  FileReader(file)); 
boolean  isInSection  =   false ; 
fileContent  =   “” ; 
try   { 
  
while  ((allLine  =  bufferedReader.readLine())  !=   null )  { 
allLine  =  allLine.trim(); 
if  (allLine.split( ” [;] ” ).length  >   1 ) 
remarkStr  =   ” ; “   +  allLine.split( ” ; ” )[ 1 ]; 
else 
remarkStr  =   “” ; 
strLine  =  allLine.split( ” ; ” )[ 0 ]; 
Pattern p; 
Matcher m; 
p  =  Pattern.compile( ” file://[//s*.*//s*//] ” ); 
m  =  p.matcher((strLine)); 
if  (m.matches())  { 
p  =  Pattern.compile( ” file://[//s* "   +  section  +   " file://s*//] ” ); 
m  =  p.matcher(strLine); 
if  (m.matches())  { 
isInSection  =   true ; 
}   else   { 
isInSection  =   false ; 
} 
} 
if  (isInSection  ==   true )  { 
strLine  =  strLine.trim(); 
String[] strArray  =  strLine.split( ” = ” ); 
getValue  =  strArray[ 0 ].trim(); 
if  (getValue.equalsIgnoreCase(variable))  { 
newLine  =  getValue  +   “  =  “   +  value  +   “   “   +  remarkStr; 
fileContent  +=  newLine  +   ” \r\n ” ; 
while  ((allLine  =  bufferedReader.readLine())  !=   null )  { 
fileContent  +=  allLine  +   ” \r\n ” ; 
} 
bufferedReader.close(); 
BufferedWriter bufferedWriter  = 
new  BufferedWriter( new  FileWriter(file,  false )); 
bufferedWriter.write(fileContent); 
bufferedWriter.flush(); 
bufferedWriter.close(); 
  
return   true ; 
} 
} 
fileContent  +=  allLine  +   ” \r\n ” ; 
} 
} catch (IOException ex) { 
throw  ex; 
}   finally   { 
bufferedReader.close(); 
} 
return   false ; 
} 
/** */ /** 
* 程序测试 
*/ 
public   static   void  main(String[] args)  { 
// String value = Config.getProfileString(”sysconfig.ini”, “Option”, “OracleDB”, “default”); 
// System.out.println(value); 
try   { 
System.out.println(ConfigurationFile.setProfileString( ” d:/1.ini ” ,  ” Settings ” ,  ” SampSize ” ,  ” 111 ” )); 
}   catch  (IOException e)  { 
System.out.println(e.toString()); 
} 
  
} 
}