Here you can find the source of getInetSocketAddress(String endpointURI, int defaultPort)
public static InetSocketAddress getInetSocketAddress(String endpointURI, int defaultPort)
//package com.java2s; /*/*ww w . ja v a 2 s . c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.net.InetAddress; import java.net.InetSocketAddress; import java.net.UnknownHostException; public class Main { public static InetSocketAddress getInetSocketAddress(String endpointURI, int defaultPort) { final int pos = endpointURI.indexOf(':'); if (pos == -1) { InetAddress addr = getInetAddress(endpointURI); return new InetSocketAddress(addr, defaultPort); } else { String host = endpointURI.substring(0, pos); InetAddress addr = getInetAddress(host); String portStr = endpointURI.substring(pos + 1); int port = Integer.parseInt(portStr); return new InetSocketAddress(addr, port); } } public static InetAddress getInetAddress(final String addressOrName) { try { return InetAddress.getByName(addressOrName); } catch (UnknownHostException e) { throw new IllegalArgumentException("Cannot find InetAddress: " + addressOrName); } } }