My Garage

第一种:　Map map = new HashMap();　　Iterator iter = map.entrySet().iterator();　　while (iter.hasNext()) {　　Map.Entry entry = (Map.Entry) iter.next();　　Object key = entry.getKey();　　Object val = entry.getVal

java.util.UUID.randomUUID();

java.lang.IllegalStateException: getWriter() has already been called for this response

/** 解压 zip 文件。 * @param zipFilePath zip 文件路径 * @param unzipDirPath 解压目录 * */public static void unZip(String zipFilePath, String unzipDirPath) { int buffer = 2048; int count = -1; Fil