Java 异常java.lang.IllegalArgumentException: Illegal group reference
Java 异常java.lang.IllegalArgumentException: Illegal group reference
当字符串方法replaceAll()中替换字符含有特殊字符$如,
String test = “abcfdgfdg”;
test = test.replaceAll(“abc”, “ewrwe$$”);
会报异常,解决方法为改写以下形式:
test = test.replaceAll(“abc”, java.util.regex.Matcher.quoteReplacement(“efefdgrete$$”));
或者
test = test.replaceAll(“abc”, “ewrwe\\$\\$”);
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