方法一:使用正则表达式替换特殊字符 publicclassSpecialCharacterHandler{publicstaticStringhandleSpecialCharacters(Stringinput){Stringregex="[^\\x20-\\x7e]";// 匹配所有非ASCII字符returninput.replaceAll(regex,"");}publicstaticvoidmain(String[]args){Stringinput="Hello, 你好,\u0001\u0002";Stringresult=hand...
Apache Commons Lang库中的StringEscapeUtils类提供了丰富的转义方法,可以对HTML、XML、Java、JavaScript等文本进行转义处理。 StringoriginalString="alert('XSS attack');";StringescapedString=StringEscapeUtils.escapeHtml4(originalString);System.out.println(escapedString);// 输出:alert('XSS attack'); 1. 2. 3. ...
正则表达式 Regex Java 案例 实用案例 查找中文:[^\x00-\xff] 去除多余空行,两个段落之间仅保留一个空行:多次将\n\n替换为\n MarkDown 格式的换行: 要求:两个中文段落中间如果没有空行,则加空行;英文段落因为都是代码,所以不加 将([^\x00-\xff]\n)([^\x00-\xff])替换为$1\n$2 ...
Experiment to your heart’s content. When you have the regex the way you want it, you can paste it into your Java program. You’ll need to escape (backslash) any characters that are treated specially by both the Java compiler and the Java regex package, such as the backslash itself, ...
URLDecoder异常Illegal hex characters in escape (%) 这是因为传参有一些特殊字符,比如%号或者说+号,导致不能解析,报错 解决方法是: 代码语言:javascript 复制 publicstaticStringreplacer(StringBuffer outBuffer){String data=outBuffer.toString();try{data=data.replaceAll("%(?![0-9a-fA-F]{2})","%25"...
at java.util.regex.Pattern.escape (Pattern.java:2473) at java.util.regex.Pattern.atom (Pattern.java:2200) at java.util.regex.Pattern.sequence (Pattern.java:2132) at java.util.regex.Pattern.expr (Pattern.java:1998) at java.util.regex.Pattern.compile (Pattern.java:1698) ...
When this flag is specified then the input string that specifies the pattern is treated as a sequence of literal characters. Metacharacters or escape sequences in the input sequence will be given no special meaning. The flags CASE_INSENSITIVE and UNICODE_CASE retain their impact on matching when...
Copied to Clipboard Error: Could not Copy /* This class removes control characters from a named * file. */ import java.util.regex.*; import java.io.*; public class Control { public static void main(String[] args) throws Exception { ...
-1 Installation step INSTALL failed java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 4 %C:\Users\john% ^ at java.util.regex.Pattern.error(Pattern.java:2028) ~[?:?] at java.util.regex.Pattern.escape(Pattern.java:2608) ~[?:?] at java.util.regex.Pattern...
normal" id="escape">\e The escape character ('\u001B') \cx The control character corresponding to x Character classes [abc] a, b, or c (simple class)