java web项目创建读取资源文件的Messages类

package com.scheduler.util;import java.util.MissingResourceException;import java.util.ResourceBundle;public class  Messages {//com.scheduler.messages是messages文件的路径，messages.properties存放常量信息private static final String BUNDLE_NAME = "com.scheduler.messages";//ResourceBundle类是用来读取资源文件的类private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(BUNDLE_NAME);private Messages() {}public static String getString(String key) {try {return RESOURCE_BUNDLE.getString(key);} catch (MissingResourceException e) {return '!' + key + '!';}}}