io.aelf.utils

类 StringUtil

java.lang.Object

io.aelf.utils.StringUtil

public class StringUtil
extends Object

构造器概要

构造器

构造器和说明
StringUtil() StringUtil constructor.

方法概要

限定符和类型	方法和说明
static String	defaultString(String str) String default content.
static String	firstCharToLowerCase(String str) The first letter is lowercase.
static String	firstCharToUpperCase(String str) Capitalize the first letter.
static int	getSubStrCount(String originalStr, String subStr) Gets the number of substrings.
static boolean	isBlank(String str) The string is empty.
static Object	minusOne(String str) get str.
static boolean	notBlank(String... strings) The string is not empty.
static boolean	notBlank(String str) The string is not empty.
static boolean	notNull(Object... paras) The string is not null.
static String	nvl(Object o) The string is a null character.
static String	nvl(String string) The string is a null character.
static String	nvl(String string, String string2) The string is a null character.
static List<String>	toList(String str, int len) String to array.
static String	toSelectStr(List resultList, String key, String value) String query.
static String	toString(Object object) String formatting.
static String	toStringBySeparator(List<Map> list, String separator, String key) String splitting.

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

StringUtil

public StringUtil()

StringUtil constructor.

方法详细资料

getSubStrCount

public static int getSubStrCount(String originalStr,
                                 String subStr)

Gets the number of substrings.

参数:

originalStr - not blank

subStr - not blank

返回:

int

toSelectStr

public static String toSelectStr(List resultList,
                                 String key,
                                 String value)

String query.

参数:

resultList - not blank

key - not blank

value - not blank

返回:

string

toString

public static String toString(Object object)

String formatting.

参数:

object - not blank

返回:

string

firstCharToLowerCase

public static String firstCharToLowerCase(String str)

The first letter is lowercase.

参数:

str - not blank

返回:

string

firstCharToUpperCase

public static String firstCharToUpperCase(String str)

Capitalize the first letter.

参数:

str - not blank

返回:

string

isBlank

public static boolean isBlank(String str)

The string is empty.

参数:

str - not blank

返回:

boolean

notBlank

public static boolean notBlank(String str)

The string is not empty.

参数:

str - not blank

返回:

boolean

notBlank

public static boolean notBlank(String... strings)

The string is not empty.

参数:

strings - not blank

返回:

boolean

notNull

public static boolean notNull(Object... paras)

The string is not null.

参数:

paras - not blank

返回:

boolean

nvl

public static String nvl(String string)

The string is a null character.

参数:

string - not blank

返回:

string

nvl

public static String nvl(Object o)

The string is a null character.

参数:

o - not blank

返回:

string

nvl

public static String nvl(String string,
                         String string2)

The string is a null character.

参数:

string - not blank

string2 - not blank

返回:

string

toStringBySeparator

public static String toStringBySeparator(List<Map> list,
                                         String separator,
                                         String key)

String splitting.

参数:

list - not blank

separator - not blank

key - not blank

返回:

string

defaultString

public static String defaultString(String str)

String default content.

参数:

str - not blank

返回:

Str

minusOne

public static Object minusOne(String str)

get str.

参数:

str - not blank

返回:

Object class

toList

public static List<String> toList(String str,
                                  int len)

String to array.

参数:

str - not blank

len - less zero

返回:

List string Object