JAVA 转义字符串中的特殊字符
package test; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Test { public static void main(String[] args) { String str = "789##$"; String regEx="[`~!@#$%^&*()+=|{}':;',\\[\\].<>/?~!@#¥%……&*()——+|{}【】‘;:”“’。,、?]"; Pattern p = Pattern.compile(regEx); Matcher m1 = p.matcher(str); if(m1.find()){ CharSequence cs = str; int j =0; for(int i=0; i< cs.length(); i++){ String temp = String.valueOf(cs.charAt(i)); Matcher m2 = p.matcher(temp); if(m2.find()){ StringBuilder sb = new StringBuilder(str); str = sb.insert(j, "\\").toString(); j++; } j++; //转义完成后str的长度增1 } System.out.println(str); } } }