自写读取配置文件类

package org.bamboo.util;

 

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class AppProperties {
 static File file=null;
 static InputStreamReader read = null;
 static BufferedReader reader=null;
 
 public static String getPropertie(String propertie){
  try {
   file=new File(AppData.appPropertiesFile);
   if(!file.exists())
    file.createNewFile();
   read=new InputStreamReader (new FileInputStream(file),"UTF-8");
   reader=new BufferedReader(read);
  } catch (Exception e) {
   System.out.println("App config can't beable to load!");
   e.printStackTrace();
  }
  String line;
  String value="";
  try {
   while ((line = reader.readLine()) != null) {
    switch (validate(line)){
     case 0:
      System.out.println(line);
      if(line.contains(propertie)){
       if(line.contains("=")){
        value=line.substring(line.indexOf("=")+1,line.length());
       }
      }
      break;
     case 1:
      System.out.println("//"+line.substring(1,line.length()));
      break;
     case 2:
      System.out.print("/*");
      while((line = reader.readLine()) != null){
       if(validate(line)==3){
        System.out.println("*/");
        break;
       }
       System.out.print(line);
      }
      break;
    }
   }
  } catch (IOException e) {
   e.printStackTrace();
  }
  return value;
 }
 
 /**
  * @param str 被验证的字符串
  * @return
  * 0 表示为正常数据
  * 1 表示为注释
  * 2 表示为标题的开始
  * 3 表示为标题的结尾
  */
 public static int validate(String str){
  if(str.startsWith("#"))
   return 1;
  else if(str.startsWith("/*"))
   return 2;
  else if(str.endsWith("*/"))
   return 3;
  else
   return 0;
 }
 
 public static void main(String [] args){
   System.out.println(getPropertie("app_Img"));
 }
}