package com.shob.tt.single; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class StringUtil { /** * SimpleDateFormat在多线程环境下容易造成数据转换及处理数据的不准确 * 处理方式:创建多个SimpleDateFormat * @param formatPattern * @param dateString * @return * @throws ParseException */ public static Date parse(String formatPattern,String dateString) throws ParseException{ return new SimpleDateFormat(formatPattern).parse(dateString); } public static String format(String formatPattern,Date date) throws ParseException{ return new SimpleDateFormat(formatPattern).format(date); } private static ThreadLocal<SimpleDateFormat> tl = new ThreadLocal<SimpleDateFormat>(); /** * ThreadLocal 类能使线程绑定到指定对象 * @param formatPattern * @return */ public static SimpleDateFormat getSimpleDateFormat(String formatPattern){ SimpleDateFormat sdf = null; sdf = tl.get(); if(null == sdf){ sdf = new SimpleDateFormat(formatPattern); tl.set(sdf); } return sdf; } }
时间: 2024-11-05 15:54:48