Here you can find the source of replaceParams(String str, Map
public static String replaceParams(String str, Map<String, String> map)
//package com.java2s; /*//from w ww. ja v a 2 s . c om * Copyright @ 2006-2010 by The Jxva Framework Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.Map; public class Main { public static String replaceParams(String str, Map<String, String> map) { for (String key : map.keySet()) { str = str.replaceAll("\\$\\{" + key + "\\}", map.get(key) == null ? "" : map.get(key)); } return str; } }