Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2015 iChano incorporation's Open Source Project
 *
 * 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.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import java.util.TimeZone;

public class Main {
    public static String string2TimezoneUTF(String srcDateTime) {
        return string2Timezone("yyyy-MM-dd HH:mm:ss", srcDateTime, "yyyy-MM-dd'T'HH:mm:ss", "UTC");
    }

    public static String string2Timezone(String srcFormater, String srcDateTime, String dstFormater,
            String dstTimeZoneId) {
        if (srcFormater == null || "".equals(srcFormater))
            return null;
        if (srcDateTime == null || "".equals(srcDateTime))
            return null;
        if (dstFormater == null || "".equals(dstFormater))
            return null;
        if (dstTimeZoneId == null || "".equals(dstTimeZoneId))
            return null;
        SimpleDateFormat sdf = new SimpleDateFormat(srcFormater);
        try {
            int diffTime = getDiffTimeZoneRawOffset(dstTimeZoneId);
            Date d = sdf.parse(srcDateTime);
            long nowTime = d.getTime();
            long newNowTime = nowTime - diffTime;
            d = new Date(newNowTime);
            return date2String(dstFormater, d);
        } catch (ParseException e) {
            return null;
        } finally {
            sdf = null;
        }
    }

    public static String string2Timezone(String srcFormater, String srcDateTime, String dstFormater,
            String srcTimeZoneId, String dstTimeZoneId) {
        if (srcFormater == null || "".equals(srcFormater))
            return null;
        if (srcDateTime == null || "".equals(srcDateTime))
            return null;
        if (dstFormater == null || "".equals(dstFormater))
            return null;
        if (dstTimeZoneId == null || "".equals(dstTimeZoneId))
            return null;
        SimpleDateFormat sdf = new SimpleDateFormat(srcFormater);
        try {
            int diffTime = getDiffTimeZoneRawOffset(srcTimeZoneId, dstTimeZoneId);
            Date d = sdf.parse(srcDateTime);
            long nowTime = d.getTime();
            long newNowTime = nowTime - diffTime;
            d = new Date(newNowTime);
            return date2String(dstFormater, d);
        } catch (ParseException e) {
            return null;
        } finally {
            sdf = null;
        }
    }

    private static int getDiffTimeZoneRawOffset(String timeZoneId) {
        return TimeZone.getDefault().getRawOffset() - TimeZone.getTimeZone(timeZoneId).getRawOffset();
    }

    private static int getDiffTimeZoneRawOffset(String srcZoneId, String toZoneId) {
        return TimeZone.getTimeZone(srcZoneId).getRawOffset() - TimeZone.getTimeZone(toZoneId).getRawOffset();
    }

    public static String getTime() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
        String str = "";
        try {
            str = sdf.format(System.currentTimeMillis());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return str;
    }

    public static String date2String(String formater, Date aDate) {
        if (formater == null || "".equals(formater))
            return null;
        if (aDate == null)
            return null;
        return (new SimpleDateFormat(formater)).format(aDate);
    }

    public static String date2String(String formater) {
        return date2String(formater, new Date());
    }
}