继承自Spring util的工具类，减少jar依赖
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# 继承自Spring util的工具类，减少jar依赖
类名： StringUtil
# firstCharToLower
/**
* 首字母变小写
*
* @param str 字符串
* @return {String}
*/
StringUtil.firstCharToLower(String str);
# firstCharToUpper
/**
* 首字母变大写
*
* @param str 字符串
* @return {String}
*/
StringUtil.firstCharToUpper(String str);
# isBlank
/**
* Check whether the given {@code CharSequence} contains actual <em>text</em>.
* <p>More specifically, this method returns {@code true} if the
* {@code CharSequence} is not {@code null}, its length is greater than
* 0, and it contains at least one non-whitespace character.
* <pre class="code">
* StringUtil.isBlank(null) = true
* StringUtil.isBlank("") = true
* StringUtil.isBlank(" ") = true
* StringUtil.isBlank("12345") = false
* StringUtil.isBlank(" 12345 ") = false
* </pre>
*
* @param cs the {@code CharSequence} to check (may be {@code null})
* @return {@code true} if the {@code CharSequence} is not {@code null},
* its length is greater than 0, and it does not contain whitespace only
* @see Character#isWhitespace
*/
StringUtil.isBlank(CharSequence cs);
# isNotBlank
/**
* <p>Checks if a CharSequence is not empty (""), not null and not whitespace only.</p>
* <pre>
* StringUtil.isNotBlank(null) = false
* StringUtil.isNotBlank("") = false
* StringUtil.isNotBlank(" ") = false
* StringUtil.isNotBlank("bob") = true
* StringUtil.isNotBlank(" bob ") = true
* </pre>
*
* @param cs the CharSequence to check, may be null
* @return {@code true} if the CharSequence is
* not empty and not null and not whitespace
* @see Character#isWhitespace
*/
StringUtil.isNotBlank(CharSequence cs);
# isAnyBlank
/**
* 有 任意 一个 Blank
*
* @param css CharSequence
* @return boolean
*/
StringUtil.isAnyBlank(CharSequence css);
# isAnyBlank
/**
* 有 任意 一个 Blank
*
* @param css CharSequence
* @return boolean
*/
StringUtil.isAnyBlank(Collection<CharSequence> css);
# isNoneBlank
/**
* 是否全非 Blank
*
* @param css CharSequence
* @return boolean
*/
StringUtil.isNoneBlank(CharSequence css);
# isNoneBlank
/**
* 是否全非 Blank
*
* @param css CharSequence
* @return boolean
*/
StringUtil.isNoneBlank(Collection<CharSequence> css);
# isAnyNotBlank
/**
* 有 任意 一个 Blank
*
* @param css CharSequence
* @return boolean
*/
StringUtil.isAnyNotBlank(CharSequence css);
# isAnyNotBlank
/**
* 有 任意 一个 Blank
*
* @param css CharSequence
* @return boolean
*/
StringUtil.isAnyNotBlank(Collection<CharSequence> css);
# isNumeric
/**
* 判断一个字符串是否是数字
*
* @param cs the CharSequence to check, may be null
* @return {boolean}
*/
StringUtil.isNumeric(CharSequence cs);
# format
/**
* 将字符串中特定模式的字符转换成map中对应的值
* <p>
* use: format("my name is ${name}, and i like ${like}!", {"name":"L.cm", "like": "Java"})
*
* @param message 需要转换的字符串
* @param params 转换所需的键值对集合
* @return 转换后的字符串
*/
StringUtil.format(String message, Map<String,Object> params);
# format
/**
* 同 log 格式的 format 规则
* <p>
* use: format("my name is {}, and i like {}!", "L.cm", "Java")
*
* @param message 需要转换的字符串
* @param arguments 需要替换的变量
* @return 转换后的字符串
*/
StringUtil.format(String message, Object arguments);
# join
/**
* Convert a {@code Collection} into a delimited {@code String} (e.g., CSV).
* <p>Useful for {@code toString()} implementations.
*
* @param coll the {@code Collection} to convert
* @return the delimited {@code String}
*/
StringUtil.join(Collection<?> coll);
# join
/**
* Convert a {@code Collection} into a delimited {@code String} (e.g. CSV).
* <p>Useful for {@code toString()} implementations.
*
* @param coll the {@code Collection} to convert
* @param delim the delimiter to use (typically a ",")
* @return the delimited {@code String}
*/
StringUtil.join(Collection<?> coll, String delim);
# join
/**
* Convert a {@code String} array into a comma delimited {@code String}
* (i.e., CSV).
* <p>Useful for {@code toString()} implementations.
*
* @param arr the array to display
* @return the delimited {@code String}
*/
StringUtil.join(Object[] arr);
# join
/**
* Convert a {@code String} array into a delimited {@code String} (e.g. CSV).
* <p>Useful for {@code toString()} implementations.
*
* @param arr the array to display
* @param delim the delimiter to use (typically a ",")
* @return the delimited {@code String}
*/
StringUtil.join(Object[] arr, String delim);
# split
/**
* 分割 字符串
*
* @param str 字符串
* @param delimiter 分割符
* @return 字符串数组
*/
StringUtil.split(String str, String delimiter);
# splitTrim
/**
* 分割 字符串 删除常见 空白符
*
* @param str 字符串
* @param delimiter 分割符
* @return 字符串数组
*/
StringUtil.splitTrim(String str, String delimiter);
# simpleMatch
/**
* 字符串是否符合指定的 表达式
*
* <p>
* pattern styles: "xxx*", "*xxx", "*xxx*" and "xxx*yyy"
* </p>
*
* @param pattern 表达式
* @param str 字符串
* @return 是否匹配
*/
StringUtil.simpleMatch(String pattern, String str);
# simpleMatch
/**
* 字符串是否符合指定的 表达式
*
* <p>
* pattern styles: "xxx*", "*xxx", "*xxx*" and "xxx*yyy"
* </p>
*
* @param patterns 表达式 数组
* @param str 字符串
* @return 是否匹配
*/
StringUtil.simpleMatch(String[] patterns, String str);
# getUUID
/**
* 生成uuid，采用 jdk 9 的形式，优化性能
*
* @return UUID
*/
StringUtil.getUUID();
# escapeHtml
/**
* 转义HTML用于安全过滤
*
* @param html html
* @return {String}
*/
StringUtil.escapeHtml(String html);
# cleanText
/**
* 清理字符串，清理出某些不可见字符和一些sql特殊字符
*
* @param txt 文本
* @return {String}
*/
StringUtil.cleanText(String txt);
# cleanIdentifier
/**
* 获取标识符，用于参数清理
*
* @param param 参数
* @return 清理后的标识符
*/
StringUtil.cleanIdentifier(String param);
# random
/**
* 随机数生成
*
* @param count 字符长度
* @return 随机数
*/
StringUtil.random(int count);
# random
/**
* 随机数生成
*
* @param count 字符长度
* @param randomType 随机数类别
* @return 随机数
*/
StringUtil.random(int count, RandomType randomType);
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