欧洲7月电动车销量跌4% 高尔夫GTE最惨
docName = URLDecoder.decode(docName, "utf-8");
decode时会抛出异常
IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern
解决方法 ： 将%替换为 %25
docUrl = docUrl.replaceAll("%(?![0-9a-fA-F]{2})", "%25");
docName = docName.replaceAll("%(?![0-9a-fA-F]{2})", "%25");
content = content.replaceAll("%(?![0-9a-fA-F]{2})", "%25");
docUrl = URLDecoder.decode(docUrl, "utf-8");
docName = URLDecoder.decode(docName, "utf-8");
content = URLDecoder.decode(content, "utf-8");
参考资料：
http://stackoverflow.com/questions/6067673/urldecoder-illegal-hex-characters-in-escape-pattern-for-input-string