Utility (mapway-gwt 0.1.0 API)

java.lang.Object
- com.ksyzt.gwt.server.common.Utility

```
public class Utility
extends Object
```
String ��߰� ��ַ�ı��ȶ��ַ��? ʹ��ʾ�� ֪ȱ�ݣ�.

版本:

0.1 Created on 2005-9-13 10:55:05 �޶��ʷ��

作者:

Sea

构造器概要

构造器
构造器和说明

Utility()

构造器
构造器和说明
`Utility()`

方法概要

All Methods Static Methods Concrete Methods
限定符和类型	方法和说明
`static boolean`	`checkEmail(String email)` Check email.
`static String`	`ChineseStringToUTF(String s)` GBK ��UTF-8ת��.
`static String`	`chopAtWord(String string, int length)` Intelligently chops a String at a word boundary (whitespace) that occurs at the specified index in the argument or before.
`static String`	`dateToMillis(Date date)` Formats a Date as a fifteen character long String made up of the Date's padded millisecond value.
`static byte[]`	`decodeHex(String hex)` Turns a hex encoded string into a byte array.
`static String`	`encodeHex(byte[] bytes)` Turns an array of bytes into a String representing each byte as an unsigned hex number.
`static String`	`encrypt(String originalStr)` ��һ��ַ�ļ��ʽ��?
`static String`	`escapeForXML(String string)` Escapes all necessary characters in the String so that it can be used in an XML doc.
`static String`	`escapeHTMLTags(String in)` Escape HTML tags.
`static String`	`getDateString(long l)` Gets the date string.
`static Date`	`getNowDate()` Gets the now date.
`static long`	`getNowLong()` Gets the now long.
`static Date`	`getNowSQLDate()` Gets the now SQL date.
`static Time`	`getNowSQLTime()` Gets the now SQL time.
`static Timestamp`	`getNowSQLTimestamp()` Gets the now SQL timestamp.
`static String`	`getString(Object o)` Gets the string.
`static String`	`getUserLink(BigDecimal id, String name)` Gets the user link.
`static String`	`hash(String data)` Hashes a String using the Md5 algorithm and returns the result as a String of hexadecimal numbers.
`static boolean`	`isDigital(String s)` Checks if is digital.
`static String`	`longRstr(long lon, String str)` ��ڸ�ʽ��ʱ��.
`static String`	`randomDigital(int length)` Random digital.
`static String`	`randomString(int length)` Returns a random String of numbers and letters (lower and upper case) of the specified length.
`static byte[]`	`ReadFromFile(String fileName)` Read from file.
`static String`	`replace(String line, String oldString, String newString)` Replaces all instances of oldString with newString in line.
`static String`	`replace(String line, String oldString, String newString, int[] count)` Replaces all instances of oldString with newString in line.
`static String`	`replaceAMP(String p)` Replace AMP.
`static String`	`replaceCRLF(String p)` Replace CRLF.
`static String`	`replaceCRLF2(String p)` Replace CRLF 2.
`static String`	`replaceIgnoreCase(String line, String oldString, String newString)` Replaces all instances of oldString with newString in line with the added feature that matches of newString in oldString ignore case.
`static String`	`replaceIgnoreCase(String line, String oldString, String newString, int[] count)` Replaces all instances of oldString with newString in line with the added feature that matches of newString in oldString ignore case.
`static Timestamp`	`string2Time(String dateString)` String 2 time.
`static String`	`toUtf8String(String s)` To utf 8 string.
`static String`	`TranslateTags(String tags)` Translate tags.
`static String`	`unescapeFromXML(String string)` Unescapes the String by converting XML escape sequences back into normal characters.
`static void`	`WriteToFile(String filename, byte[] content)` Write to file.
`static String`	`zeroPadString(String string, int length)` Pads the supplied String with 0's to the specified length and returns the result as a new String.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - Utility
```
public Utility()
```
- 方法详细资料
  - string2Time
```
public static final Timestamp string2Time(String dateString)
                                   throws ParseException
```
    String 2 time.
    
    参数:
    
    dateString - the date string
    
    返回:
    
    the java.sql. timestamp
    
    抛出:
    
    ParseException - the parse exception
  - checkEmail
```
public static boolean checkEmail(String email)
```
    Check email.
    
    参数:
    
    email - the email
    
    返回:
    
    true, if successful
  - replace
```
public static final String replace(String line,
                                   String oldString,
                                   String newString)
```
    Replaces all instances of oldString with newString in line.
    
    参数:
    
    line - the String to search to perform replacements on
    
    oldString - the String that should be replaced by newString
    
    newString - the String that will replace all instances of oldString
    
    返回:
    
    a String will all instances of oldString replaced by newString
  - replaceIgnoreCase
```
public static final String replaceIgnoreCase(String line,
                                             String oldString,
                                             String newString)
```
    Replaces all instances of oldString with newString in line with the added feature that matches of newString in oldString ignore case.
    
    参数:
    
    line - the String to search to perform replacements on
    
    oldString - the String that should be replaced by newString
    
    newString - the String that will replace all instances of oldString
    
    返回:
    
    a String will all instances of oldString replaced by newString
  - replaceIgnoreCase
```
public static final String replaceIgnoreCase(String line,
                                             String oldString,
                                             String newString,
                                             int[] count)
```
    Replaces all instances of oldString with newString in line with the added feature that matches of newString in oldString ignore case. The count paramater is set to the number of replaces performed.
    
    参数:
    
    line - the String to search to perform replacements on
    
    oldString - the String that should be replaced by newString
    
    newString - the String that will replace all instances of oldString
    
    count - a value that will be updated with the number of replaces performed.
    
    返回:
    
    a String will all instances of oldString replaced by newString
  - replace
```
public static final String replace(String line,
                                   String oldString,
                                   String newString,
                                   int[] count)
```
    Replaces all instances of oldString with newString in line. The count Integer is updated with number of replaces.
    
    参数:
    
    line - the String to search to perform replacements on
    
    oldString - the String that should be replaced by newString
    
    newString - the String that will replace all instances of oldString
    
    count - the count
    
    返回:
    
    a String will all instances of oldString replaced by newString
  - escapeHTMLTags
```
public static final String escapeHTMLTags(String in)
```
    Escape HTML tags.
    
    参数:
    
    in - the text to be converted.
    
    返回:
    
    String
  - hash
```
public static final String hash(String data)
```
    Hashes a String using the Md5 algorithm and returns the result as a String of hexadecimal numbers. This method is synchronized to avoid excessive MessageDigest object creation. If calling this method becomes a bottleneck in your code, you may wish to maintain a pool of MessageDigest objects instead of using this method.
    A hash is a one-way function -- that is, given an input, an output is easily computed. However, given the output, the input is almost impossible to compute. This is useful for passwords since we can store the hash and a hacker will then have a very hard time determining the original password.
    In Jive, every time a user logs in, we simply take their plain text password, compute the hash, and compare the generated hash to the stored hash. Since it is almost impossible that two passwords will generate the same hash, we know if the user gave us the correct password or not. The only negative to this system is that password recovery is basically impossible. Therefore, a reset password method is used instead.
    
    参数:
    
    data - the String to compute the hash of.
    
    返回:
    
    a hashed version of the passed-in String
  - encodeHex
```
public static final String encodeHex(byte[] bytes)
```
    Turns an array of bytes into a String representing each byte as an unsigned hex number.
    Method by Santeri Paavolainen, Helsinki Finland 1996
    (c) Santeri Paavolainen, Helsinki Finland 1996
    Distributed under LGPL.
    
    参数:
    
    bytes - an array of bytes to convert to a hex-string
    
    返回:
    
    generated hex string
  - decodeHex
```
public static final byte[] decodeHex(String hex)
```
    Turns a hex encoded string into a byte array. It is specifically meant to "reverse" the toHex(byte[]) method.
    
    参数:
    
    hex - a hex encoded String to transform into a byte array.
    
    返回:
    
    a byte array representing the hex String[
  - randomString
```
public static final String randomString(int length)
```
    Returns a random String of numbers and letters (lower and upper case) of the specified length. The method uses the Random class that is built-in to Java which is suitable for low to medium grade security uses. This means that the output is only pseudo random, i.e., each number is mathematically generated so is not truly random.
    The specified length must be at least one. If not, the method will return null.
    
    参数:
    
    length - the desired length of the random String to return.
    
    返回:
    
    a random String of numbers and letters of the specified length.
  - randomDigital
```
public static final String randomDigital(int length)
```
    Random digital.
    
    参数:
    
    length - the length
    
    返回:
    
    the string
  - replaceCRLF
```
public static String replaceCRLF(String p)
```
    Replace CRLF.
    
    参数:
    
    p - the p
    
    返回:
    
    the string
  - replaceAMP
```
public static String replaceAMP(String p)
```
    Replace AMP.
    
    参数:
    
    p - the p
    
    返回:
    
    the string
  - replaceCRLF2
```
public static String replaceCRLF2(String p)
```
    Replace CRLF 2.
    
    参数:
    
    p - the p
    
    返回:
    
    the string
  - chopAtWord
```
public static final String chopAtWord(String string,
                                      int length)
```
    Intelligently chops a String at a word boundary (whitespace) that occurs at the specified index in the argument or before. However, if there is a newline character before length, the String will be chopped there. If no newline or whitespace is found in string up to the index length, the String will chopped at length.
    For example, chopAtWord("This is a nice String", 10) will return "This is a" which is the first word boundary less than or equal to 10 characters into the original String.
    
    参数:
    
    string - the String to chop.
    
    length - the index in string to start looking for a whitespace boundary at.
    
    返回:
    
    a substring of string whose length is less than or equal to length, and that is chopped at whitespace.
  - escapeForXML
```
public static final String escapeForXML(String string)
```
    Escapes all necessary characters in the String so that it can be used in an XML doc.
    
    参数:
    
    string - the string to escape.
    
    返回:
    
    the string with appropriate characters escaped.
  - unescapeFromXML
```
public static final String unescapeFromXML(String string)
```
    Unescapes the String by converting XML escape sequences back into normal characters.
    
    参数:
    
    string - the string to unescape.
    
    返回:
    
    the string with appropriate characters unescaped.
  - zeroPadString
```
public static final String zeroPadString(String string,
                                         int length)
```
    Pads the supplied String with 0's to the specified length and returns the result as a new String. For example, if the initial String is "9999" and the desired length is 8, the result would be "00009999". This type of padding is useful for creating numerical values that need to be stored and sorted as character data. Note: the current implementation of this method allows for a maximum length of 16.
    
    参数:
    
    string - the original String to pad.
    
    length - the desired length of the new padded String.
    
    返回:
    
    a new String padded with the required number of 0's.
  - dateToMillis
```
public static final String dateToMillis(Date date)
```
    Formats a Date as a fifteen character long String made up of the Date's padded millisecond value.
    
    参数:
    
    date - the date
    
    返回:
    
    a Date encoded as a String.
  - encrypt
```
public static String encrypt(String originalStr)
```
    ��һ��ַ�ļ��ʽ��?MD5 �㷨.
    
    参数:
    
    originalStr - the original str
    
    返回:
    
    the string
  - ChineseStringToUTF
```
public static String ChineseStringToUTF(String s)
```
    GBK ��UTF-8ת��.
    
    参数:
    
    s - the s
    
    返回:
    
    the string
  - getNowLong
```
public static long getNowLong()
```
    Gets the now long.
    
    返回:
    
    the now long
  - getNowDate
```
public static Date getNowDate()
```
    Gets the now date.
    
    返回:
    
    the now date
  - getNowSQLDate
```
public static Date getNowSQLDate()
```
    Gets the now SQL date.
    
    返回:
    
    the now SQL date
  - getNowSQLTime
```
public static Time getNowSQLTime()
```
    Gets the now SQL time.
    
    返回:
    
    the now SQL time
  - getNowSQLTimestamp
```
public static Timestamp getNowSQLTimestamp()
```
    Gets the now SQL timestamp.
    
    返回:
    
    the now SQL timestamp
  - TranslateTags
```
public static String TranslateTags(String tags)
```
    Translate tags.
    
    参数:
    
    tags - the tags
    
    返回:
    
    the string
  - getUserLink
```
public static String getUserLink(BigDecimal id,
                                 String name)
```
    Gets the user link.
    
    参数:
    
    id - the id
    
    name - the name
    
    返回:
    
    the user link
  - isDigital
```
public static boolean isDigital(String s)
```
    Checks if is digital.
    
    参数:
    
    s - the s
    
    返回:
    
    true, if is digital
  - getDateString
```
public static String getDateString(long l)
```
    Gets the date string.
    
    参数:
    
    l - the l
    
    返回:
    
    the date string
  - getString
```
public static String getString(Object o)
```
    Gets the string.
    
    参数:
    
    o - the o
    
    返回:
    
    the string
  - WriteToFile
```
public static void WriteToFile(String filename,
                               byte[] content)
```
    Write to file.
    
    参数:
    
    filename - the filename
    
    content - the content
  - ReadFromFile
```
public static byte[] ReadFromFile(String fileName)
```
    Read from file.
    
    参数:
    
    fileName - the file name
    
    返回:
    
    the byte[]
  - toUtf8String
```
public static String toUtf8String(String s)
```
    To utf 8 string.
    
    参数:
    
    s - the s
    
    返回:
    
    the string
  - longRstr
```
public static String longRstr(long lon,
                              String str)
```
    ��ڸ�ʽ��ʱ��.
    
    参数:
    
    lon - long��ʱ�䣩
    
    str - String��ڸ�ʽ��
    
    返回:
    
    String

类 Utility

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

Utility

方法详细资料

string2Time

checkEmail

replace

replaceIgnoreCase

replaceIgnoreCase

replace

escapeHTMLTags

hash

encodeHex

decodeHex

randomString

randomDigital

replaceCRLF

replaceAMP

replaceCRLF2

chopAtWord

escapeForXML

unescapeFromXML

zeroPadString

dateToMillis

encrypt

ChineseStringToUTF

getNowLong

getNowDate

getNowSQLDate

getNowSQLTime

getNowSQLTimestamp

TranslateTags

getUserLink

isDigital

getDateString

getString

WriteToFile

ReadFromFile

toUtf8String

longRstr