ully之旅

1.编写连表sql，注意hql与sql的区别即可  String hql = "select pi.id,pi.nam,pm.mId,pm.mversion from PM pm, PI pi where pm.id=pi.id and pm.mId =:mId"; 2.打开查询  QueryParams q = new QueryParams();q.addPar...

1) 请求工具类 org.springframework.web.bind.ServletRequestUtils//取请求参数的整数值：public static Integer getIntParameter(ServletRequest request, String name)public static int getIntParameter(ServletRequest ...

http://justdoblogger.com/blog/category/program/java

一个Cron-表达式是一个由六至七个字段组成由空格分隔的字符串，其中6个字段是必须的而一个是可选的，如下： 字段名  允许的值  允许的特殊字符秒  0-59  , - * /分  0-59  , - * /小时  0-23  , - * /日  1-31  , - * ? / L...