j2me常用的字符,日期,以及转换编码实现

import java.io.UnsupportedEncodingException;
import java.util.Vector;

import javax.wireless.messaging.Message;

/**
* 转换网络传过来的数据
*
* @auth colonel
* @dateOrLeague 2006-7-11
*
*/

public class StringUtil {

/**
* 切割str字符串
* 例如("wuhua,中国,好,",",");分割成String[] s = {"wuhua","中国","好");
* @param str 源字符串
* @param regex,分割标致,
* @return
*/
public static String[] split(String bufferstr, String regex) {

if(bufferstr == null)
return null;
Vector split = new Vector();

while (true) // 处理从网络上获得的数据并对其进行处理
{
int index = bufferstr.indexOf(regex);

if (index == -1) {
if (bufferstr != null && !bufferstr.equals(""))
split.addElement(bufferstr);
// log.debug("bufferstr=" +bufferstr);s
break;
}
split.addElement(bufferstr.substring(0, index));
// log.debug("Str=" + bufferstr.substring(0, index));
bufferstr = bufferstr.substring(index + 1, bufferstr.length());
// log.debug("bufferstr=" +bufferstr);
}
String[] s = new String[split.size()];

split.copyInto(s);

return s;

}

/**
* 转换网络上的字节为中文
* @param bytes
* @param start
* @return
*/
public static String getStringToGBK(byte[] bytes, int start) {
byte[] rt = new byte[bytes.length - start];
for (int i = 0; i < rt.length; i++)
rt[i] = bytes[i + start];
try {
return new String(rt, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return new String(rt);
}
}

}

/**
* 转换编码
* @author Administrator
*
*/
public class FormatTransfer {

public static int getUINT4(byte ba[], int start) {
int r = 0;
r |= 0xff & ba[start];
r <<= 8;
r |= 0xff & ba[start + 1];
r <<= 8;
r |= 0xff & ba[start + 2];
r <<= 8;
r |= 0xff & ba[start + 3];
return r;
}

public static void setUINT4(byte ba[], int start, int value) {
ba[start] = (byte) (value >> 24 & 0xff);
ba[start + 1] = (byte) (value >> 16 & 0xff);
ba[start + 2] = (byte) (value >> 8 & 0xff);
ba[start + 3] = (byte) (value & 0xff);
}

public static void setUSHORT4(byte ba[], int start, short value) {
ba[start + 0] = (byte) (value >> 8 & 0xff);
ba[start + 1] = (byte) (value & 0xff);
}

public static short getUSHORT4(byte ba[], int start) {
short r = 0;
r |= 0xff & ba[start];
r <<= 8;
r |= 0xff & ba[start + 1];
return r;
}

public static void appen(byte[] rt, byte[] bodys, int start) {
for (int i = 0; i < bodys.length; i++) {
rt[start + i] = bodys[i];
}
}

}

import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

/**
* <b>类名：DateTime.java</b> </br> 编写日期: 2006-6-23 <br/> 程序功能描述：日期时间的工具类 <br/>
* Demo: <br/> Bug: <br/>
*
* 程序变更日期 ：<br/> 变更作者 ：<br/> 变更说明 ：<br/>
*
* @author wuhua </br> <a href="mailto:rrq12345@163.com">rrq12345@163.com</a>
*/

public final class DateTime {
private static String[] WEEKDAYS_EN = { "SUN", "MON", "TUE", "WED", "THU",
"FRI", "SAT" };

private static String[] WEEKDAYS_CH = { "周日", "周一", "周二", "周三", "周四", "周五",
"周六" };

public final String timeZone;

public final int year;

public final int month;

public int day;

public int weekday;

public final int hour;

public final int minute;

public final int second;

public final int millsecond;

Calendar c;

public DateTime(Date date, String timeZone) {
this.timeZone = timeZone;
c = timeZone == null ? Calendar.getInstance() : Calendar
.getInstance(TimeZone.getDefault());
c.setTime(date);
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH);
day = c.get(Calendar.DAY_OF_MONTH);
weekday = c.get(Calendar.DAY_OF_WEEK);
hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE);
second = c.get(Calendar.SECOND);
millsecond = c.get(Calendar.MILLISECOND);
}

public DateTime(long time, String timeZone) {
this(new Date(time), timeZone);
}

public DateTime() {
this(System.currentTimeMillis(), "GMT + 16");
}

public static String beforeOneDate() {
return new DateTime(System.currentTimeMillis() - 24 * 3600 * 1000,
"GMT+8").toDateString();
}

public Date toDate() {
Calendar c = Calendar.getInstance(TimeZone.getTimeZone(timeZone));
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, month);
c.set(Calendar.DAY_OF_MONTH, day);
c.set(Calendar.HOUR_OF_DAY, hour);
c.set(Calendar.MINUTE, minute);
c.set(Calendar.SECOND, second);
c.set(Calendar.MILLISECOND, millsecond);
return c.getTime();
}

public String toDateString() {
if (timeZone.equals("GMT-8"))
return (month + 1) + "月" + day + "日" + " ["
+ WEEKDAYS_EN[weekday - 1] + "] ";
else
return (month + 1) + "月" + day + "日" + " ["
+ WEEKDAYS_CH[weekday - 1] + "] ";

}

public void setDate(int day) {

this.day = day;
this.c.set(Calendar.DAY_OF_WEEK, day);
// day = c.get(Calendar.DAY_OF_WEEK);
weekday = c.get(Calendar.DAY_OF_WEEK);

}

public String toTimeString() {
return hour + ":" + minute + ":" + second + ":" + millsecond;
}

public String toString() {
return toDateString() + " " + toTimeString();
}
}