java读取config.ini

public String getProfileString( String file,  String section, String variable, String defaultValue,Logger log) throws IOException 
     { 
    	 String strLine, value = ""; 
    	 BufferedReader bufferedReader = null;
    	 try 
    	 { 
    		 bufferedReader = new BufferedReader(new FileReader(file)); 
    		 boolean isInSection = false; 
    		 Pattern p; 
    		 Matcher m; 
    		 while ((strLine = bufferedReader.readLine()) != null)
    		 { 
    			 strLine = strLine.trim(); 
    			 strLine = strLine.split("[;]")[0]; 
    			 p = Pattern.compile("\\[\\s*.*\\s*\\]");
    			 m = p.matcher((strLine)); 
    			 if (m.matches()) 
    			 { 
    				 p = Pattern.compile("\\[\\s*" + section + "\\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; 
    					 }
    				 }
    			 }
    		 }
    	 } catch(IOException e)
    	 {
    		 log.error("读取配置文件出错"+e.toString());
    		 e.printStackTrace();
    	   } finally {
            bufferedReader.close();
            }
    	 return defaultValue;
    }