在web和非web环境都可以使用的属性文件属性读取java代码

代码如下:

package com.test;import java.io.IOException;import java.io.InputStream;import java.util.Properties;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;public class PropManager {private static final Log log = LogFactory.getLog(PropManager.class);public static Properties prop = null;static {prop = new Properties();InputStream in=new PropManager().getClass().getResourceAsStream("jdbc.properties");log.info("start load jdbc.properties config file ! in===== "+in);try {log.info("start load jdbc.properties config file ! ");prop.load(in);log.info("success load jdbc.properties config file done! ");} catch (IOException e1) {e1.printStackTrace();log.error(" load jdbc.properties config failure! ",e1);}}/** * @param args */public static void main(String[] args) {String jdbcUrl=prop.getProperty("jdbc.test.url");String jdbcUsername = prop.getProperty("jdbc.test.username");String jdbcPassword = prop.getProperty("jdbc.test.password");System.out.println("jdbcUrl=="+jdbcUrl);System.out.println("jdbcUsername=="+jdbcUsername);System.out.println("jdbcPassword=="+jdbcPassword);System.out.println("jdbcPassword=="+getProp("jdbc.admin.password"));}public static String getProp(String key){return prop.getProperty(key);}}

属性文件:

jdbc.properties:

内容如下:

#
jdbc.test.url=jdbc:mysql://192.168.0.1:3316/test?characterEncoding=GBK
jdbc.test.username=root
jdbc.test.password=123456

执行:输出:

2012-12-25 18:06:02,711 INFO [main] - com.test.PropManager.<clinit>(20) | start load jdbc.properties config file ! in=====java.io.BufferedInputStream@14d3343
2012-12-25 18:06:02,711 INFO [main] - com.test.PropManager.<clinit>(22) | start load jdbc.properties config file !
2012-12-25 18:06:02,711 INFO [main] - com.test.PropManager.<clinit>(24) | success load jdbc.properties config file done!
jdbcUrl==jdbc:mysql://192.168.0.1:3316/test?characterEncoding=GBK
jdbcUsername==root
jdbcPassword==123456
jdbcPassword==123456

特别注意如下路径写法:

InputStream in=new PropManager().getClass().getResourceAsStream("jdbc.properties");

同时 保持 PropManager类和属性文件jdbc.properties:在一个目录下.