读取WEB-INF/classes目录下文件，及读取其key-value

最新推荐文章于 2021-02-16 00:37:04 发布

原创最新推荐文章于 2021-02-16 00:37:04 发布 · 325 阅读

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本文介绍了一个Java类，用于从类路径中加载配置文件并将其内容转换为Properties对象。该类首先尝试加载名为xiu-ui.properties的文件，如果未找到，则会尝试备选路径。加载成功后，可以通过方法获取配置项的值。


package com.ui.version.config;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Config {

	private static Logger log = Logger.getLogger(Config.class.getName());

	private static final String fileName = "xiu-ui.properties";
	private static final String fileName2 = "com/ui/version/resources/xiu-ui.properties";


	private static Properties properties = new Properties();;

	static{
		boolean ready = false;
		InputStream is = Config.class.getClassLoader().getResourceAsStream(fileName);
		if(is != null){
			try {
				properties.load(is);
				ready = true;
				log.log(Level.INFO, "加载classpath:"+fileName+"成功！");
			} catch (IOException e) {
				log.log(Level.WARNING, "加载classpath:"+fileName+"失败", e);
			}
		}
		if(!ready){
			is = Config.class.getClassLoader().getResourceAsStream(fileName2);
			if(is != null){
				try {
					properties.load(is);
					ready = true;
					log.log(Level.INFO, "加载classpath:"+fileName2+"成功！");
				} catch (IOException e) {
					log.log(Level.WARNING, "加载classpath:"+fileName2+"失败", e);
				}
			}
		}
		if(!ready){
			log.log(Level.SEVERE, "未能找到资源，请将"+fileName+"文件放到classes目录下");
		}
	}

	public static String getConfigValue(String key){
		return properties.getProperty(key,null);
	}

	public static Properties getProperties(){
		return properties;
	}

}