cn.hippo4j.common.toolkit

类 StringUtil

java.lang.Object

cn.hippo4j.common.toolkit.StringUtil

public class StringUtil
extends Object

String util.
Refer to cn.hutool.core.util.StrUtil:
this#toSymbolCase(CharSequence, char)
this#toCamelCase(CharSequence, char)
this#subBefore(String, String)

字段概要

字段

限定符和类型	字段和说明
static String	EMPTY
static String[]	EMPTY_ARRAY
static char	UNDERLINE

构造器概要

构造器

构造器和说明
StringUtil()

方法概要

限定符和类型	方法和说明
static StringBuilder	appends(StringBuilder builder, CharSequence... charSequences) combination CharSequence, to StringBuilder
static StringBuilder	createBuilder(CharSequence... charSequences) combination CharSequence, get a StringBuilder
static String	emptyToNull(String str) Returns the given string if it is nonempty; null otherwise.
static boolean	hasEmpty(CharSequence... strList) Has empty.
static boolean	isAllNotEmpty(CharSequence... args) Is all not empty.
static boolean	isBlank(CharSequence str) Is blank.
static boolean	isEmpty(CharSequence str) Is empty.
static boolean	isNotBlank(CharSequence str) Is not blank.
static boolean	isNotEmpty(CharSequence str) Is not empty.
static boolean	isNullOrEmpty(String str) 已过时。
static String	newBuilder(CharSequence... charSequences) combination CharSequence, get a String
static String	nullToEmpty(String str) Returns the given string if it is non-null; the empty string otherwise.
static String	replace(String str, String searchStr, String replaceStr) Replace a portion of the string, replacing all found
static String[]	split(String str, String separatorChars) Splits the provided text into an array, separators specified.
static boolean	startWith(String str, String prefix) Tests if this string starts with the specified prefix.
static String	subBefore(String str, String symbol) get the string before the delimiter
static String	toCamelCase(CharSequence str, char symbol) to camel case
static String	toSymbolCase(CharSequence str, char symbol) To symbol case.
static String	toUnderlineCase(CharSequence str) To underline case.

从类继承的方法 java.lang.Object

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

字段详细资料

EMPTY

public static final String EMPTY

另请参阅:

常量字段值

UNDERLINE

public static final char UNDERLINE

另请参阅:

常量字段值

EMPTY_ARRAY

public static final String[] EMPTY_ARRAY

构造器详细资料

StringUtil

public StringUtil()

方法详细资料

emptyToNull

public static String emptyToNull(String str)

Returns the given string if it is nonempty; null otherwise.

参数:

str -

返回:

nullToEmpty

public static String nullToEmpty(String str)

Returns the given string if it is non-null; the empty string otherwise.

参数:

str -

返回:

isNullOrEmpty

@Deprecated
public static boolean isNullOrEmpty(String str)

已过时。

Returns true if the given string is null or is the empty string.

this method has been deprecated, use isEmpty() instead.

参数:

str -

返回:

isBlank

public static boolean isBlank(CharSequence str)

Is blank.

参数:

str -

返回:

isEmpty

public static boolean isEmpty(CharSequence str)

Is empty.

参数:

str -

返回:

isNotEmpty

public static boolean isNotEmpty(CharSequence str)

Is not empty.

参数:

str -

返回:

isNotBlank

public static boolean isNotBlank(CharSequence str)

Is not blank.

参数:

str -

返回:

isAllNotEmpty

public static boolean isAllNotEmpty(CharSequence... args)

Is all not empty.

参数:

args -

返回:

hasEmpty

public static boolean hasEmpty(CharSequence... strList)

Has empty.

参数:

strList -

返回:

toUnderlineCase

public static String toUnderlineCase(CharSequence str)

To underline case.

参数:

str -

返回:

toSymbolCase

public static String toSymbolCase(CharSequence str,
                                  char symbol)

To symbol case.

参数:

str -

symbol -

返回:

toCamelCase

public static String toCamelCase(CharSequence str,
                                 char symbol)

to camel case

参数:

str - CharSequence

symbol - symbol

返回:

toCamelCase String

newBuilder

public static String newBuilder(CharSequence... charSequences)

combination CharSequence, get a String

参数:

charSequences - CharSequence, if null or empty, get EMPTY

返回:

String

createBuilder

public static StringBuilder createBuilder(CharSequence... charSequences)

combination CharSequence, get a StringBuilder

参数:

charSequences - CharSequence

返回:

StringBuilder

appends

public static StringBuilder appends(StringBuilder builder,
                                    CharSequence... charSequences)

combination CharSequence, to StringBuilder

参数:

builder - StringBuilder, if null create a new

charSequences - CharSequence

返回:

StringBuilder

replace

public static String replace(String str,
                             String searchStr,
                             String replaceStr)

Replace a portion of the string, replacing all found

参数:

str - A string to operate on

searchStr - The replaced string

replaceStr - The replaced string

返回:

Replace the result

split

public static String[] split(String str,
                             String separatorChars)

Splits the provided text into an array, separators specified.

 StringUtils.split(null, *)         = null
 StringUtils.split("", *)           = []
 StringUtils.split("abc def", null) = ["abc", "def"]
 StringUtils.split("abc def", " ")  = ["abc", "def"]
 StringUtils.split("ab:cd:ef", ":") = ["ab", "cd", "ef"]
 

参数:

str - the String to parse, may be null

separatorChars - the characters used as the delimiters,

返回:

an array of parsed Strings

startWith

public static boolean startWith(String str,
                                String prefix)

Tests if this string starts with the specified prefix.

参数:

str - this str

prefix - the suffix

返回:

Whether the prefix exists

subBefore

public static String subBefore(String str,
                               String symbol)

get the string before the delimiter

参数:

str - string

symbol - separator

返回:

String