操作Properties文件信息

import java.io.*;
import java.util.Properties;
import java.util.Enumeration;

public class TestPro {


public static void main(String[] args)
        {
            Properties prop = new Properties();
            try
            {
                FileInputStream fis = new FileInputStream("DB.properties");
                prop.load(fis);
          
            String dbUrl = prop.getProperty("url"); 
            String dbPassword = prop.getProperty("password");
            System.out.println("根据key读取value:");
            System.out.println(dbUrl);
            System.out.println(dbPassword);
          
            System.out.println("------------------------------");
            prop.setProperty("password","456");
      
  System.out.println( "修改后的密码："+prop.getProperty("password"));
            System.out.println("------------------------------");
  System.out.println("动态写入properpties文件属性:author=zhaozhi3758");
            prop.setProperty("author","zhaozhi3758");
            prop.store(new FileOutputStream("DB.properties"),null); 
            System.out.println("------------------------------");
            
            Enumeration en = prop.propertyNames();
              System.out.println("读取properties的全部信息:");
            while (en.hasMoreElements()) {
              String key = (String) en.nextElement();
                    String Property = prop.getProperty (key);
                    System.out.println(key+"="+Property);
                }
        } catch (Exception e) {
        e.printStackTrace();
        }
}
}
-----------------------------
import java.io.*;
import java.util.*;

public class  ResourceBundleTest {
public static void main(String[] args)
        {
            Locale locale=Locale.getDefault();
          ResourceBundle rb= ResourceBundle.getBundle("DB",locale); 
          String read=rb.getString("url");
            System.out.println(read);
            System.out.println("-------------------------------");
            Enumeration en = rb.getKeys();//读取properties的全部信息
              System.out.println("读取properties的全部信息:");
            while (en.hasMoreElements()) {
              String key = (String) en.nextElement();
                    String Property = rb.getString(key);
                    System.out.println(key+"="+Property);
                }
      
}

}