Package cn.dlysxx.www.common.string

Class StringUtil

java.lang.Object

cn.dlysxx.www.common.string.StringUtil

public class StringUtil
extends java.lang.Object

StringUtil.

Constructor Summary

Constructors

Constructor	Description
StringUtil()

Method Summary

Modifier and Type	Method	Description
static java.lang.String	conversion(java.io.InputStream inputStream)	File input stream convert to String.
static java.lang.String	mask(java.lang.String str, int range, boolean direction, char mask, java.lang.String allow)	Mask a string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StringUtil

public StringUtil()

Method Detail

conversion

public static java.lang.String conversion(java.io.InputStream inputStream)
                                   throws java.io.IOException

File input stream convert to String.

Parameters:

inputStream - file stream

Returns:

string

Throws:

java.io.IOException - IOException

mask

public static java.lang.String mask(java.lang.String str,
                                    int range,
                                    boolean direction,
                                    char mask,
                                    java.lang.String allow)

Mask a string.

Parameters:

str - string.

range - range of output plain text.

direction - direction of mask. true : left, ***4567, false : right, 1234***.

mask - mask character.

allow - exceptional allow string (regular expression).

Returns:

the masked string, or empty string if null or empty string inputs.