com.ckjava.utils

类 StringUtils

java.lang.Object

org.apache.commons.lang3.StringUtils

com.ckjava.utils.StringUtils

所有已实现的接口:

Constants

直接已知子类:

DbUtils

public class StringUtils
extends org.apache.commons.lang3.StringUtils
implements Constants

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	StringUtils.StringDiff 字符串比较

从接口继承的嵌套类/接口 com.ckjava.utils.Constants

Constants.CONCAT, Constants.DBOPERATION, Constants.DBTYPE, Constants.ENCODE, Constants.HTTPMETHOD, Constants.OSTYPE, Constants.QUERYTYPE, Constants.REG, Constants.SPLITER, Constants.STATUS, Constants.TIMEFORMAT

字段概要

从类继承的字段 org.apache.commons.lang3.StringUtils

CR, EMPTY, INDEX_NOT_FOUND, LF, SPACE

构造器概要

构造器

构造器和说明
StringUtils()

方法概要

限定符和类型	方法和说明
static boolean	containsStr(java.lang.String str, java.lang.String[] strs) 判断字符串是否在字符数组中
static java.util.List<java.lang.String>	extractVariable(java.lang.String targetString) 从字符串中提取占位符变量, 占位符变量 : ${group_id}
static java.lang.String	getCleanStr(java.lang.Object object)
static java.lang.String	getCleanXmlString(java.lang.Object original) 已过时。
static java.lang.String	getDecodeCleanXmlString(java.lang.Object original) 已过时。
static java.lang.String	getProperStr(java.lang.String ocharset, java.lang.String str)
static java.lang.String	getStr(java.lang.Object obj) 获取Object对象的 String对象
static java.lang.String	getStr(java.lang.Object obj, java.lang.String defaultStr) 获取Object对象的 String对象，如果为空返回默认值
static java.lang.String	getStringByFilter(java.lang.String targetString, java.lang.String leftBorder, java.lang.String rightBorder, java.lang.Integer index) 在字符串中截取指定边界的字符串 比如 targetString 为 "{sdfsf10252sdf10252sfslf23y4nsfhispw3}" leftBorder 为 "10252" rightBorder 为 "f" index 为 1 的时候返回字符串 "sd", 为 2 的时候返回字符串 "s", 为 3 的时候仍然返回字符串 "s"
static java.lang.String	getUTF8Str(java.lang.String ocharset, java.lang.String str)
static boolean	isNotNullAndNotBlank(java.lang.Object obj) 判断目标对象不为空并且有值
static StringUtils.StringDiff	levenshtein(java.lang.String str1, java.lang.String str2) DNA分析 拼字检查 语音辨识 抄袭侦测
static void	main(java.lang.String[] args)
static boolean	objectHasStr(java.lang.Object obj, java.lang.String str) 判断某个 Object对象 里面是否含有指定的字符串
protected java.lang.String	replaceVariable(java.lang.String sourceString, java.util.Map<java.lang.String,java.lang.String> placeholderMap) 将指定字符串中的占位符变量替换成具体的值 比如目标字符串为 SELECT * FROM data_user WHERE group_id = ${group_id} AND del_flag = ${del_flag} 替换后为 SELECT * FROM data_user WHERE group_id = '1' AND del_flag = '0'

从类继承的方法 org.apache.commons.lang3.StringUtils

abbreviate, abbreviate, abbreviateMiddle, appendIfMissing, appendIfMissingIgnoreCase, capitalize, center, center, center, chomp, chomp, chop, compare, compare, compareIgnoreCase, compareIgnoreCase, contains, contains, containsAny, containsAny, containsAny, containsIgnoreCase, containsNone, containsNone, containsOnly, containsOnly, containsWhitespace, countMatches, countMatches, defaultIfBlank, defaultIfEmpty, defaultString, defaultString, deleteWhitespace, difference, endsWith, endsWithAny, endsWithIgnoreCase, equals, equalsAny, equalsAnyIgnoreCase, equalsIgnoreCase, getCommonPrefix, getFuzzyDistance, getJaroWinklerDistance, getLevenshteinDistance, getLevenshteinDistance, indexOf, indexOf, indexOf, indexOf, indexOfAny, indexOfAny, indexOfAny, indexOfAnyBut, indexOfAnyBut, indexOfDifference, indexOfDifference, indexOfIgnoreCase, indexOfIgnoreCase, isAllLowerCase, isAllUpperCase, isAlpha, isAlphanumeric, isAlphanumericSpace, isAlphaSpace, isAnyBlank, isAnyEmpty, isAsciiPrintable, isBlank, isEmpty, isNoneBlank, isNoneEmpty, isNotBlank, isNotEmpty, isNumeric, isNumericSpace, isWhitespace, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, joinWith, lastIndexOf, lastIndexOf, lastIndexOf, lastIndexOf, lastIndexOfAny, lastIndexOfIgnoreCase, lastIndexOfIgnoreCase, lastOrdinalIndexOf, left, leftPad, leftPad, leftPad, length, lowerCase, lowerCase, mid, normalizeSpace, ordinalIndexOf, overlay, prependIfMissing, prependIfMissingIgnoreCase, remove, remove, removeAll, removeEnd, removeEndIgnoreCase, removeFirst, removeIgnoreCase, removePattern, removeStart, removeStartIgnoreCase, repeat, repeat, repeat, replace, replace, replaceAll, replaceChars, replaceChars, replaceEach, replaceEachRepeatedly, replaceFirst, replaceIgnoreCase, replaceIgnoreCase, replaceOnce, replaceOnceIgnoreCase, replacePattern, reverse, reverseDelimited, right, rightPad, rightPad, rightPad, rotate, split, split, split, split, splitByCharacterType, splitByCharacterTypeCamelCase, splitByWholeSeparator, splitByWholeSeparator, splitByWholeSeparatorPreserveAllTokens, splitByWholeSeparatorPreserveAllTokens, splitPreserveAllTokens, splitPreserveAllTokens, splitPreserveAllTokens, splitPreserveAllTokens, startsWith, startsWithAny, startsWithIgnoreCase, strip, strip, stripAccents, stripAll, stripAll, stripEnd, stripStart, stripToEmpty, stripToNull, substring, substring, substringAfter, substringAfterLast, substringBefore, substringBeforeLast, substringBetween, substringBetween, substringsBetween, swapCase, toEncodedString, toString, trim, trimToEmpty, trimToNull, truncate, truncate, uncapitalize, upperCase, upperCase, wrap, wrap, wrapIfMissing, wrapIfMissing

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

StringUtils

public StringUtils()

方法详细资料

getUTF8Str

public static java.lang.String getUTF8Str(java.lang.String ocharset,
                                          java.lang.String str)
                                   throws java.lang.Exception

抛出:

java.lang.Exception

getProperStr

public static java.lang.String getProperStr(java.lang.String ocharset,
                                            java.lang.String str)
                                     throws java.lang.Exception

抛出:

java.lang.Exception

getCleanStr

public static java.lang.String getCleanStr(java.lang.Object object)

getCleanXmlString

@Deprecated
public static java.lang.String getCleanXmlString(java.lang.Object original)

已过时。

建议使用 org.apache.commons.lang3.StringEscapeUtils.escapeHtml4(); 入库前过滤特殊字符

参数:

original - Object对象

返回:

String 类型

getDecodeCleanXmlString

@Deprecated
public static java.lang.String getDecodeCleanXmlString(java.lang.Object original)

已过时。

建议使用 org.apache.commons.lang3.StringEscapeUtils.escapeXml11(input); 回退过滤特殊字符

参数:

original - Object对象

返回:

字符串

isNotNullAndNotBlank

public static boolean isNotNullAndNotBlank(java.lang.Object obj)

判断目标对象不为空并且有值

参数:

obj - Object对象

返回:

obj = null 或者 obj = "" 返回 false

getStr

public static java.lang.String getStr(java.lang.Object obj)

获取Object对象的 String对象

参数:

obj - Object对象

返回:

字符串

getStr

public static java.lang.String getStr(java.lang.Object obj,
                                      java.lang.String defaultStr)

获取Object对象的 String对象，如果为空返回默认值

参数:

obj - Object对象

defaultStr - 默认值

返回:

字符串

objectHasStr

public static boolean objectHasStr(java.lang.Object obj,
                                   java.lang.String str)

判断某个 Object对象 里面是否含有指定的字符串

参数:

obj - Object对象

str - 指定的字符串

返回:

true:含有，false:不含有

containsStr

public static boolean containsStr(java.lang.String str,
                                  java.lang.String[] strs)

判断字符串是否在字符数组中

参数:

str - 字符串

strs - 字符数组

返回:

true:在，false:不在

对于参数 str 和 strs 为空的情况下判断如下

<pre> if (str == null && strs == null) { return true; } if (str == null && strs != null) { return false; } if (str != null && strs == null) { return false; } </pre>

replaceVariable

protected java.lang.String replaceVariable(java.lang.String sourceString,
                                           java.util.Map<java.lang.String,java.lang.String> placeholderMap)

将指定字符串中的占位符变量替换成具体的值 比如目标字符串为 SELECT * FROM data_user WHERE group_id = ${group_id} AND del_flag = ${del_flag} 替换后为 SELECT * FROM data_user WHERE group_id = '1' AND del_flag = '0'

参数:

sourceString - 替换前的字符串

placeholderMap - 里面的 key 为 占位符 ${group_id} 中的 group_id, value 为具体的值

返回:

替换后的字符串

getStringByFilter

public static java.lang.String getStringByFilter(java.lang.String targetString,
                                                 java.lang.String leftBorder,
                                                 java.lang.String rightBorder,
                                                 java.lang.Integer index)

在字符串中截取指定边界的字符串 比如 targetString 为 "{sdfsf10252sdf10252sfslf23y4nsfhispw3}" leftBorder 为 "10252" rightBorder 为 "f" index 为 1 的时候返回字符串 "sd", 为 2 的时候返回字符串 "s", 为 3 的时候仍然返回字符串 "s"

参数:

targetString - 目标字符串

leftBorder - 目标字符串左边界

rightBorder - 目标字符串右边界

index - 左边界出现的次数, 如果为 2, 那么截取出现第二次满足时候的字符串

返回:

截取的字符串

extractVariable

public static java.util.List<java.lang.String> extractVariable(java.lang.String targetString)

从字符串中提取占位符变量, 占位符变量 : ${group_id}

参数:

targetString - 像 SELECT * FROM data_user WHERE group_id = ${group_id} AND del_flag = ${del_flag}

返回:

List<String> 里面有 group_id, del_flag

levenshtein

public static StringUtils.StringDiff levenshtein(java.lang.String str1,
                                                 java.lang.String str2)

DNA分析 拼字检查 语音辨识 抄袭侦测

参数:

str1 - 字符串1

str2 - 字符串2

返回:

StringDiff

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

抛出:

java.lang.Exception