cn.sliew.milky.common.util

类 StringUtils

java.lang.Object

cn.sliew.milky.common.util.StringUtils

public final class StringUtils
extends Object

方法概要

限定符和类型	方法和说明
static String	camelToSplitName(String camelName, String split)
static String	defaultToString(Object obj) Convert the supplied Object to a default String representation using the following algorithm.
static boolean	isBlank(String str) Determine if the supplied String is blank (i.e., null or consisting only of whitespace characters).
static boolean	isNotBlank(String str) Determine if the supplied String is not blank.
static String	nullSafeToString(Object obj) Convert the supplied Object to a String using the following algorithm.
static boolean	substringMatch(CharSequence str, int index, CharSequence substring) Test whether the given string matches the given substring at the given index.

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

isBlank

public static boolean isBlank(String str)

Determine if the supplied String is blank (i.e., null or consisting only of whitespace characters).

参数:

str - the string to check; may be null

返回:

true if the string is blank

另请参阅:

isNotBlank(String)

isNotBlank

public static boolean isNotBlank(String str)

Determine if the supplied String is not blank.

参数:

str - the string to check; may be null

返回:

true if the string is not blank

另请参阅:

isBlank(String)

substringMatch

public static boolean substringMatch(CharSequence str,
                                     int index,
                                     CharSequence substring)

Test whether the given string matches the given substring at the given index.

参数:

str - the original string (or StringBuilder)

index - the index in the original string to start matching against

substring - the substring to match at the given index

camelToSplitName

public static String camelToSplitName(String camelName,
                                      String split)

nullSafeToString

public static String nullSafeToString(Object obj)

Convert the supplied Object to a String using the following algorithm.

• If the supplied object is null, this method returns "null".
• If the supplied object is a primitive array, the appropriate Arrays#toString(...) variant will be used to convert it to a String.
• If the supplied object is an object array, Arrays#deepToString(Object[]) will be used to convert it to a String.
• Otherwise, toString() will be invoked on the object. If the result is non-null, that result will be returned. If the result is null, "null" will be returned.
• If any of the above results in an exception, this method delegates to defaultToString(Object)

参数:

obj - the object to convert to a String; may be null

返回:

a String representation of the supplied object; never null

另请参阅:

Arrays.deepToString(Object[]), ClassUtil.nullSafeToString(Class...)

defaultToString

public static String defaultToString(Object obj)

Convert the supplied Object to a default String representation using the following algorithm.

• If the supplied object is null, this method returns "null".
• Otherwise, the String returned by this method will be generated analogous to the default implementation of Object.toString() by using the supplied object's class name and hash code as follows: obj.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(obj))

参数:

obj - the object to convert to a String; may be null

返回:

the default String representation of the supplied object; never null

另请参阅:

nullSafeToString(Object), ClassUtil.nullSafeToString(Class...)