Java 异常java.lang.IllegalArgumentException: Illegal group reference时间:2023-03-08 22:22:00 当字符串方法replaceAll()中替换字符含有特殊字符$如, String test = "<StreamingNo>abc</StreamingNo>"; test = test.replaceAll("abc", "1111111111$$"); 会报异常,解决方法为改写以下形式: test = test.replaceAll("abc", java.util.regex.Matcher.quoteReplacement("dXNlcjM1NDk2NQ$$")); 参考:http://cuisuqiang.iteye.com/blog/2062173