org.iherus.shiro.util

类 StringUtils

java.lang.Object

org.iherus.shiro.util.StringUtils

public final class StringUtils
extends Object

字符串工具类

Description:提供空值判断、字符串截取和获取字符串长度等功能.

版本:

1.0.0

作者:

Bosco.Liao

方法概要

方法

限定符和类型	方法和说明
static boolean	isBlank(CharSequence cs) Checks if a CharSequence is whitespace, empty ("") or null.
static boolean	isEmpty(CharSequence cs) Checks if a CharSequence is empty ("") or null.
static boolean	isNotBlank(CharSequence cs) Checks if a CharSequence is not empty (""), not null and not whitespace only.
static boolean	isNotEmpty(CharSequence cs) Checks if a CharSequence is not empty ("") and not null.
static int	length(CharSequence cs) Gets a CharSequence length or 0 if the CharSequence is null.
static String	substring(String str, int start) Intercept a CharSequence base on String.
static String	substring(String str, int start, int end) Intercept a CharSequence base on String.
static String	trim(String str) Remove the Spaces before and after.
static String	trimToEmpty(String str) Remove the Spaces before and after,if null,return empty.
static String	trimToNull(String str) Remove the Spaces before and after,if empty, return null.

从类继承的方法 java.lang.Object

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

方法详细资料

isEmpty

public static boolean isEmpty(CharSequence cs)

Checks if a CharSequence is empty ("") or null.

isNotEmpty

public static boolean isNotEmpty(CharSequence cs)

Checks if a CharSequence is not empty ("") and not null.

isBlank

public static boolean isBlank(CharSequence cs)

Checks if a CharSequence is whitespace, empty ("") or null.

isNotBlank

public static boolean isNotBlank(CharSequence cs)

Checks if a CharSequence is not empty (""), not null and not whitespace only.

trim

public static String trim(String str)

Remove the Spaces before and after.

trimToNull

public static String trimToNull(String str)

Remove the Spaces before and after,if empty, return null.

trimToEmpty

public static String trimToEmpty(String str)

Remove the Spaces before and after,if null,return empty.

substring

public static String substring(String str,
               int start)

Intercept a CharSequence base on String.

substring

public static String substring(String str,
               int start,
               int end)

Intercept a CharSequence base on String.

length

public static int length(CharSequence cs)

Gets a CharSequence length or 0 if the CharSequence is null.