Here you can find the source of stringTimeToLongTime(String time, String format)
public static long stringTimeToLongTime(String time, String format) throws IOException
//package com.java2s; /**/* ww w.jav a2s . c o m*/ * 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.io.IOException; import java.text.ParseException; import java.text.SimpleDateFormat; public class Main { public static long stringTimeToLongTime(String time, String format) throws IOException { if (format.isEmpty()) format = "yyyyMMdd-HHmmss-SSS"; try { return new SimpleDateFormat(format).parse(time).getTime(); } catch (ParseException e) { throw new IOException(e); } } }