java Properties类使用方式

package com.heilong.properties;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;

/**
 * 
 * setProperty(key, value)
 * getProperty(key)
 * 
 * store(OutPutStream outPutStream, String message)
 * 
 * 
 * 
 */
public class properties {

	public static void main(String[] args) throws IOException {
		
		readProperties();
	}
	
	//读取配置文件
	public static void readProperties() throws IOException {
		//创建Properties对象
		Properties properties = new Properties();
		//加载配置文件的信息到Properties中
		properties.load(new FileInputStream(new File("./src/data/property.properties")));
		
		//遍历Properties
		Set<Entry<Object, Object>> entrys = properties.entrySet();
		for(Entry<Object, Object> entry : entrys){
			System.out.println("键：" + entry.getKey() + " 值：" + entry.getValue());
		}
	}
	
	//创建配置文件
	public static void createProperties() throws IOException {
		//创建Properties
		Properties properties  =new Properties();
		properties.setProperty("admin", "123456");
		properties.setProperty("root", "654321");
		properties.setProperty("账户", "密码");
		
		//使用Properties生成配置文件
		properties.store(new FileOutputStream(new File("./src/data/property.properties")), "配置文件");
//		properties.store(new FileWriter(new File("./src/data/property.properties")), "配置文件");
	}

}