public static void writeFile(String fileName, String fileContent)  
{   
  try  
  {   
    File f = new File(fileName);   
    if (!f.exists())  
    {    
      f.createNewFile();   
    }   
    OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(f),"gbk");   
    BufferedWriter writer=new BufferedWriter(write);     
    writer.write(fileContent);   
    writer.close();   
  } catch (Exception e)  
  {   
    e.printStackTrace();   
  } 
} 

public static String readFile(String fileName) 
{   
  String fileContent = "";   
  try  
  {    
    File f = new File(fileName);   
    if(f.isFile()&&f.exists()) 
    {    
      InputStreamReader read = new InputStreamReader(new FileInputStream(f),"gbk");    
      BufferedReader reader=new BufferedReader(read);    
      String line;    
      while ((line = reader.readLine()) != null)  
      {    
        fileContent += line;    
      }     
      read.close();   
    }   
  } catch (Exception e)  
  {     
    e.printStackTrace();   
  }   
  return fileContent;  
}