Java唯一码生成，Java码生成,private stat

Java唯一码生成，Java码生成,private stat

private static String beforeBh;private static String beforeNum;

public static String codeGenerate() { Date now = new Date(); String behind = now.getTime()+""; if(beforeBh==null) { beforeBh = behind; } else if(beforeBh.equals(behind)) { behind = behind +beforeNum; beforeNum++; } else { beforeBh = behind; beforeNum = 0; } return behind;