Java讀取properties配置資訊的兩種方法

Eclipse java Project目錄結構：

aaa.properties

user=root
port=8888
ip=192.168.7.124

 方法一：Demo01.java

package com.properties.read;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
/**
 * 讀取Properties配置檔案方法一
 *
 */
public class Demo01 {
	public static void main(String[] args) throws IOException {
		Properties p = new Properties();
		Class clazz = Demo01.class;
		InputStream is = clazz.getResourceAsStream("/aaa.properties");
		p.load(is);
		String user = p.getProperty("user");
		int port = Integer.parseInt(p.getProperty("port"));
		String ip = p.getProperty("ip");
		System.out.println(user);
		System.out.println(port);
		System.out.println(ip);
	}
}
 

方法二：Demo02.java

package com.properties.read;

import java.util.ResourceBundle;

public class Demo02 {

	public static void main(String[] args) {
		// 在classpath下讀取aaa.properties 
		ResourceBundle res = ResourceBundle.getBundle("aaa");
		String user = res.getString("user");
		int port = Integer.parseInt(res.getString("port"));
		String ip = res.getString("ip");
		System.out.println(user);
		System.out.println(port);
		System.out.println(ip);
	}
}