DateFormater.java
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package com.sitech.util;
import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.Calendar;
public class DateFormater {
public final static String INVALIDDATE = "1950-01-01";
public final static String SQLTYPE = "ORACLE";
public final static String getFormatTime(String formatType) {
SimpleDateFormat formatter = new SimpleDateFormat(formatType);
return formatter.format(new java.util.Date());
}
public final static String getFormatTime(String formatType, java.util.Date formatDate) {
if (null == formatDate) {
return "";
}
SimpleDateFormat formatter = new SimpleDateFormat(formatType);
return formatter.format(formatDate);
}
//判断日期字符串(yyyymmdd)是否正确(不是很严禁！没有对日期的30、31、28、29进行判断)
public final static boolean isRightDate(String date_s) {
boolean isRight = true;
if (date_s.length() != 8) {
isRight = false;
} else {
String year_s = date_s.substring(0, 4);
String month_s = date_s.substring(4, 6);
String date_ss = date_s.substring(6, 8);
try {
int year_i = Integer.parseInt(year_s);
int month_i = Integer.parseInt(month_s);
int date_i = Integer.parseInt(date_ss);
if (year_i < 1000) {
isRight = false;
}
if (month_i < 1 || month_i > 12) {
isRight = false;
}
if (date_i < 1 || date_i > 31) {
isRight = false;
}
} catch (Exception e) {
isRight = false;
e.printStackTrace();
}
}
return isRight;
}
public final static String getNowTime() {
SimpleDateFormat formatter1
= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return formatter1.format(new Date());
}
public final static String getToday() {
SimpleDateFormat formatter1
= new SimpleDateFormat("yyyy-MM-dd");
return formatter1.format(new Date());
}
/*
如果时间为默认值INVALIDDATE,则在前台显示""
*/
public final static String dateToString(Date dDate) throws RuntimeException {
if (null == dDate) {
return "";
}
SimpleDateFormat formatter1
= new SimpleDateFormat("yyyy-MM-dd");
if (formatter1.format(dDate).equals(INVALIDDATE)) {
return "";
}
return formatter1.format(dDate);
}
/*
如果时间为默认值INVALIDDATE,则在前台显示""
*/
public final static String datetimeToString(Date dDate) throws RuntimeException {
if (null == dDate) {
return "";
}
if (dateToString(dDate).equals("")) {
return "";
}
SimpleDateFormat formatter1
= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return formatter1.format(dDate);
}
public final static Date stringToDate(String cDate, String cFormat) throws ParseException {
SimpleDateFormat formatter1 = new SimpleDateFormat(cFormat);
return formatter1.parse(cDate);
}
public final static Date stringToDate(String cDate) throws ParseException {
try {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd");
return formatter1.parse(cDate);
}
catch (ParseException e) {
try {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return formatter1.parse(cDate);
}
catch (ParseException ee) {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd HH:mm");
return formatter1.parse(cDate);
}
}
}
public final static Date stringToDateTime(String cDate) throws ParseException {
try {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return formatter1.parse(cDate);
}
catch (ParseException e) {
try {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd HH:mm");
return formatter1.parse(cDate);
}
catch (ParseException ee) {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd");
return formatter1.parse(cDate);
}
}
}
private final static String toOracleDate(Date dDate) throws ParseException {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd");
return " to_date('" + formatter1.format(dDate) + "','yyyy-mm-dd') ";
}
public final static String toOracleDateTime(Date dDate) throws ParseException {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return " to_date('" + formatter1.format(dDate) + "','yyyy-MM-dd HH24:mi:ss') ";
}
private final static String toSybaseDate(Date dDate) throws ParseException {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd");
return " '" + formatter1.format(dDate) + "' ";
}
private final static String toSybaseDateTime(Date dDate) throws ParseException {
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd");
return " '" + formatter1.format(dDate) + "' ";
}
public final static String toDBDate(Date dDate) throws ParseException {
if (null == dDate) {
dDate = stringToDate(INVALIDDATE);
}
String cSQLDate = null;
if (SQLTYPE.equals("ORACLE"))
cSQLDate = toOracleDate(dDate);
if (SQLTYPE.equals("SYBASE"))
cSQLDate = toSybaseDate(dDate);
return cSQLDate;
}
public final static String toDBDate(String cDate) throws ParseException {
if (null == cDate) {
cDate = INVALIDDATE;
}
return toDBDate(stringToDate(cDate));
}
public final static String toDBDateTime(Date dDate) throws ParseException {
if (null == dDate) {
dDate = stringToDate(INVALIDDATE);
}
String cSQLDate = null;
if (SQLTYPE.equals("ORACLE"))
cSQLDate = toOracleDateTime(dDate);
if (SQLTYPE.equals("SYBASE"))
cSQLDate = toSybaseDateTime(dDate);
return cSQLDate;
}
public final static String toDBDateTime(String cDate) throws ParseException {
if (null == cDate) {
cDate = INVALIDDATE;
}
return toDBDateTime(stringToDateTime(cDate));
}
/**
* (1) parameter description
*
* @param date
* @param type
* @param timeInterval
* @return (2)function description
* realize the time plus and minus
* (3) loop condition
* y: year
* m: month
* d: date
* h:hour
* f: minute(fenzhong)
* s: second
*/
public static Date computeDate(Date date, char type, int timeInterval) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int Time_year = cal.get(Calendar.YEAR);
int Time_month = cal.get(Calendar.MONTH);
int Time_day = cal.get(Calendar.DAY_OF_MONTH);
int Time_hour = cal.get(Calendar.HOUR_OF_DAY);
int Time_minute = cal.get(Calendar.MINUTE);
int Time_second = cal.get(Calendar.SECOND);
switch (type) {
case 'y': {
Time_year = Time_year + timeInterval;
cal.set(Calendar.YEAR, Time_year);
}
break;
case 'm': {
Time_month = Time_month + timeInterval;
cal.set(Calendar.MONTH, Time_month);
}
break;
case 'd': {
Time_day = Time_day + timeInterval;
cal.set(Calendar.DAY_OF_MONTH, Time_day);
}
break;
case 'h': {
Time_hour = Time_hour + timeInterval;
cal.set(Calendar.HOUR_OF_DAY, Time_hour);
}
break;
case 'f': {
Time_minute = Time_minute + timeInterval;
cal.set(Calendar.MINUTE, Time_minute);
}
break;
case 's': {
Time_second = Time_second + timeInterval;
cal.set(Calendar.SECOND, Time_second);
}
break;
default:
break;
}
date = cal.getTime();
return date;
}
public static Date computeDate(String cDate, char type, int timeInterval) {
java.util.Date dDate = null;
try {
dDate = stringToDateTime(cDate);
}
catch (ParseException e) {
dDate = new Date();
}
return computeDate(dDate, type, timeInterval);
}
public final static String getHISTableName(Date dDate) throws ParseException {
if (null == dDate) {
dDate = new Date();
}
SimpleDateFormat formatter1 = new SimpleDateFormat("yyyyMMdd");
return formatter1.format(dDate);
}
/**
* 根据传入的时间和需计算的差值，获取计算后的时间
* 算法：通过转化成标准毫秒进行转换。
* add by qiuzq 20080611.
*
* @param dDate 传入的时间
* @param calValue 需计算的差值
* @return 返回字符串
* @throws ParseException
*/
public final static String getCalDateStr(Date dDate, int calValue) throws ParseException {
SimpleDateFormat bartDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long myTime = dDate.getTime() + calValue;
dDate.setTime(myTime);
return bartDateFormat.format(dDate);
}
/**
* 根据传入的时间、类型和需计算的差值，获取计算后的时间
* 算法：通过转化成标准毫秒进行转换。
*
* @param sDate
* @param type 类型，最大粒度到天；目前不支持年月
* @param calValue
* @return
* @throws ParseException
*/
public final static String getCalDateStr(String sDate, String type, int calValue) throws ParseException {
SimpleDateFormat bartDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
int iValue = 0;
if ("day".equals(type.toLowerCase())) {
iValue = 24 * 60 * 60 * 1000 * calValue;
} else if ("hour".equals(type.toLowerCase())) {
iValue = 60 * 60 * 1000 * calValue;
} else if ("minute".equals(type.toLowerCase())) {
iValue = 60 * 1000 * calValue;
} else if ("second".equals(type.toLowerCase())) {
iValue = 1000 * calValue;
}
return getCalDateStr(bartDateFormat.parse(sDate), iValue);
}
/**
* 根据传入的时间、类型和需计算的差值，获取计算后的时间
* 算法：通过转化成标准毫秒进行转换。
*
* @param dDate
* @param type 类型，最大粒度到天；目前不支持年月
* @param calValue
* @return
* @throws ParseException
*/
public final static String getCalDateStr(Date dDate, String type, int calValue) throws ParseException {
int iValue = 0;
if ("day".equals(type.toLowerCase())) {
iValue = 24 * 60 * 60 * 1000 * calValue;
} else if ("hour".equals(type.toLowerCase())) {
iValue = 60 * 60 * 1000 * calValue;
} else if ("minute".equals(type.toLowerCase())) {
iValue = 60 * 1000 * calValue;
} else if ("second".equals(type.toLowerCase())) {
iValue = 1000 * calValue;
}
return getCalDateStr(dDate, iValue);
}
/**
* 根据传入的时间、类型和需计算的差值，获取计算后的时间
* 算法：通过转化成标准毫秒进行转换。
*
* @param dDate
* @param type 类型，最大粒度到天；目前不支持年月
* @param calValue
* @return
* @throws ParseException
*/
public final static Date getCalDateTime(Date dDate, String type, int calValue) throws ParseException {
int iValue = 0;
if ("day".equals(type.toLowerCase())) {
iValue = 24 * 60 * 60 * 1000 * calValue;
} else if ("hour".equals(type.toLowerCase())) {
iValue = 60 * 60 * 1000 * calValue;
} else if ("minute".equals(type.toLowerCase())) {
iValue = 60 * 1000 * calValue;
} else if ("second".equals(type.toLowerCase())) {
iValue = 1000 * calValue;
}
long myTime = dDate.getTime() + iValue;
dDate.setTime(myTime);
return dDate;
}
}