config_ini.java

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package com.hxyh.sanny.mms.telecom.tool;
import java.io.*;

public class Config_ini {
  private String fileName = null;
  private BufferedReader readBuffer;
  private PrintWriter writeBuffer;

  private String[] lineBuffer=new String[1000];
  private int lineNumber=0;
  private int startline;
  private String Temp;

  public Config_ini(String fileName) {
    this.fileName = fileName;
    try{
      readBuffer = new BufferedReader(new InputStreamReader(new FileInputStream(this.fileName)));
    }
    catch(FileNotFoundException e){
      e.printStackTrace(System.out);
      System.out.println("打开文件失败!");
    }
    while(readLine()){
      lineBuffer[lineNumber] = Temp;
      lineNumber++;
    }
    try {
      readBuffer.close();
    }
    catch (IOException e) {
      System.out.println(e);
    }
  }

  public boolean readLine(){
    try {
      if ((Temp=readBuffer.readLine()) != null){
        Temp = Temp.trim();
      }
      else{return false;}
    }
    catch (IOException e) {
      e.printStackTrace(System.out);
      return false;
    }
    return true;
  }

  public String readAttribute(String subNote,String TextNote){
    String subNoteText = "["+subNote+"]";
    String TextNoteText = TextNote;
    String TextValue=null;
    for (int i=0;i<lineNumber;i++){
      if (lineBuffer[i].equals(subNoteText))
        startline = i;
    }
    for (int i=startline+1;i<lineNumber;i++){
      if (lineBuffer[i].substring(0,lineBuffer[i].indexOf("=")).equals(TextNoteText)){
        TextValue = lineBuffer[i].substring(lineBuffer[i].indexOf("=") + 1,
                                            lineBuffer[i].length());
        break;
      }
    }
    return TextValue;
    }

    public void setAttribute(String subNote,String TextNote,String TextNoteValue)
    {
      String subNotew = "["+subNote+"]";
      String strValue;
      boolean boosubNote = false;
      File f = new File(this.fileName);
      f.delete();
      try{
        writeBuffer=new PrintWriter(new FileWriter(this.fileName,true));
        for(int i=0;i<lineNumber;i++){
          if (lineBuffer[i].equals(subNotew))
            boosubNote = true;
          if (lineBuffer[i].indexOf(TextNote)>=0 && boosubNote){
            strValue = lineBuffer[i].substring(0, lineBuffer[i].indexOf("=") + 1) + TextNoteValue;
            boosubNote = false;
          }
          else
            strValue = new String(lineBuffer[i]);
          writeBuffer.println(strValue);
        }
        writeBuffer.close();
      }
      catch(FileNotFoundException e){
        System.out.println(e);
      }
      catch(IOException e){
        System.out.println(e);
      }
    }
}