拼接字符串

/**
* 生成编号
* 生成规则：h + ssid + 年 + 月 
* 

* */

       private static String HOUSE_NO = "h";

public static String getHouseIreeNo(){
Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
String  month =String.valueOf(calendar.get(Calendar.MONTH) + 1);
if(Integer.parseInt(month) < 10){
month = "0" + month;
}
String HouseIreeNo = HOUSE_NO + RequestUtil.getSsid() + year + month ;
return HouseIreeNo;
}