Properties读写文件的操作

Properties读文件
public void readByFile()
{
//实例化一个Properties
protected static Properties p = new Properties();

InputStream in = null;
  String propertyFileName = "backspell.properties";
try{
    in = HNightProcessor.class.getClassLoader().getResourceAsStream   (propertyFileName);
       //读取文件时用Properties的load()方法
       if (in != null)
                p.load(in);
]catch(IOException e)
{
  System.out.println(e.getMessage());
} finally {
            if (in != null) {
                try {
                    in.close();
                    //out.close();
                } catch (IOException e) {
                System.out.println("close " + propertyFileName + " error!");
                }
            }
  }
     //用Properties的getProperty方法获取文件中对应的参数名的值
     String isBack_=p.getProperty("isBack").toString();
 
}



//Properties写文件
public void writeByFile()
{
//实例化一个Properties
protected static Properties p = new Properties();
OutputStream fos=null;
try{
    //写入数据
    fos = new FileOutputStream(ConfigLocation.getWebRoot  ().replace ("WebRoot", "resources")+"backspell.properties"); 


   //写入对应属性的值
    p.setProperty("isBack","false");
    p.store(fos, "Update'isBack'value");

  }catch(IOException e)
  {
    System.out.println(e.getMessage());
  } finally {
            if (in != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                  System.out.println(e.getMessage());
                }
            }
  }
  
}