com.ds.jds.core.esb.util

类 TextUtils

java.lang.Object

com.ds.jds.core.esb.util.TextUtils

public class TextUtils
extends Object

构造器概要

构造器

构造器和说明
TextUtils()

方法概要

限定符和类型	方法和说明
static String	htmlEncode(String s)
static String	htmlEncode(String s, boolean encodeSpecialChars) Escape html entity characters and high charact ers (eg "curvy" Word quotes).
static String	join(String glue, Collection pieces) Join a Collection of Strings together.
static String	join(String glue, Iterator pieces) Join an Iteration of Strings together.
static String	join(String glue, String[] pieces) Join an array of Strings together.
static String	noNull(String string) Return string, or "" if string is null.
static String	noNull(String string, String defaultString) Return string, or defaultString if string is null or "".
static boolean	stringSet(String string) Check whether string has been set to something other than "" or null.
static boolean	verifyUrl(String url) Verify That the given String is in valid URL format.

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

TextUtils

public TextUtils()

方法详细资料

htmlEncode

public static final String htmlEncode(String s)

htmlEncode

public static final String htmlEncode(String s,
                                      boolean encodeSpecialChars)

Escape html entity characters and high charact ers (eg "curvy" Word quotes). Note this method can also be used to encode XML.

参数:

s - the String to escape.

encodeSpecialChars - if true high characters will be encode other wise not.

返回:

the escaped string

join

public static final String join(String glue,
                                Iterator pieces)

Join an Iteration of Strings together.

Example

   // get Iterator of Strings ("abc","def","123");
   Iterator i = getIterator();
   out.print( TextUtils.join(", ",i) );
   // prints: "abc, def, 123"
 

参数:

glue - Token to place between Strings.

pieces - Iteration of Strings to join.

返回:

String presentation of joined Strings.

join

public static final String join(String glue,
                                String[] pieces)

Join an array of Strings together.

参数:

glue - Token to place between Strings.

pieces - Array of Strings to join.

返回:

String presentation of joined Strings.

另请参阅:

join(String, Iterator)

join

public static final String join(String glue,
                                Collection pieces)

Join a Collection of Strings together.

参数:

glue - Token to place between Strings.

pieces - Collection of Strings to join.

返回:

String presentation of joined Strings.

另请参阅:

join(String, Iterator)

noNull

public static final String noNull(String string,
                                  String defaultString)

Return string, or defaultString if string is null or "". Never returns null.

Examples:

 // prints "hello"
 String s=null;
 System.out.println(TextUtils.noNull(s,"hello");

 // prints "hello"
 s="";
 System.out.println(TextUtils.noNull(s,"hello");

 // prints "world"
 s="world";
 System.out.println(TextUtils.noNull(s, "hello");
 

参数:

string - the String to check.

defaultString - The default string to return if string is null or ""

返回:

string if string is non-empty, and defaultString otherwise

另请参阅:

stringSet(String)

noNull

public static final String noNull(String string)

Return string, or "" if string is null. Never returns null.

Examples:

 // prints 0
 String s=null;
 System.out.println(TextUtils.noNull(s).length());

 // prints 1
 s="a";
 System.out.println(TextUtils.noNull(s).length());
 

参数:

string - the String to check

返回:

a valid (non-null) string reference

stringSet

public static final boolean stringSet(String string)

Check whether string has been set to something other than "" or null.

参数:

string - the String to check

返回:

a boolean indicating whether the string was non-empty (and non-null)

verifyUrl

public static final boolean verifyUrl(String url)

Verify That the given String is in valid URL format.

参数:

url - The url string to verify.

返回:

a boolean indicating whether the URL seems to be incorrect.