java转换编码报错java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern

Exception in thread "main" java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern - For input string: "左右"
at java.net.URLDecoder.decode

%引起

%会转换成%25

解决方案：

    public static String replacer(String str) {

        String data = str;

        try {

            data = data.replaceAll("%(?![0-9a-fA-F]{2})", "%25");

            data = data.replaceAll("\\+", "%2B");

            data = URLDecoder.decode(data, "utf-8");

        } catch (Exception e) {

            e.printStackTrace();

        }

        return data;

    }

巴特西

java转换编码报错java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern

%引起

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