常用字符串工具类StringUtils.stripEnd（）用法示例。

本文主要是介绍常用字符串工具类StringUtils.stripEnd（）用法示例。，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

StringUtils.stripEnd（）的作用大致是从第一个字符串中去除第二个字符串中含有的所有字符。

org.apache.commons.lang3.StringUtils

org.apache.commons.lang3.StringUtils.stripEnd(){} 源代码如下：

/**
* Strips any of a set of characters from the end of a String.
*
* A {@code null} input String returns {@code null}.
* An empty string ("") input returns the empty string.
*
* If the stripChars String is {@code null}, whitespace is
* stripped as defined by {@link Character#isWhitespace(char)}.
*
* <pre>
* StringUtils.stripEnd(null, *) = null
* StringUtils.stripEnd("", *) = ""
* StringUtils.stripEnd("abc", "") = "abc"
* StringUtils.stripEnd("abc", null) = "abc"
* StringUtils.stripEnd(" abc", null) = " abc"
* StringUtils.stripEnd("abc ", null) = "abc"
* StringUtils.stripEnd(" abc ", null) = " abc"
* StringUtils.stripEnd(" abcyx", "xyz") = " abc"
* StringUtils.stripEnd("120.00", ".0") = "12"
* </pre>
*
* @param str the String to remove characters from, may be null
* @param stripChars the set of characters to remove, null treated as whitespace
* @return the stripped String, {@code null} if null String input
*/
public static String stripEnd(final String str, final String stripChars) {
int end;
if (str == null || (end = str.length()) == 0) {
return str;
}

if (stripChars == null) {
while (end != 0 && Character.isWhitespace(str.charAt(end - 1))) {
end--;
}
} else if (stripChars.isEmpty()) {
return str;
} else {
while (end != 0 && stripChars.indexOf(str.charAt(end - 1)) != INDEX_NOT_FOUND) {
end--;
}
}
return str.substring(0, end);
}