Java读写Property

//读配置文件片段

public String getPropertyValue(String key){
  Properties pro = new Properties();
  try {
   InputStream in = new FileInputStream("");  //加载配置文件
   try {
    pro.load(in);
   } finally {
    in.close();
   }
   return pro.getProperty(key);
  } catch (Exception e) {
   e.printStackTrace();

   return null;
  }

}

 

 

 

//写配置文件片段

public void setPropertyValue(String key, String value){
  Properties pro = new Properties();
  try {
   InputStream in = new FileInputStream("");   //加载配置文件
   try {
    pro.load(in);
   } finally {
    in.close();
   }
   
   pro.setProperty(key, value);
   
   OutputStream out =new FileOutputStream("");   //加载配置文件
   try{
    pro.store(out, "modi by lmy");
    out.flush();
   }finally{
    out.close();
   }
   
  } catch (Exception e) {
   e.printStackTrace();
  }

}