使用HibernateTemplate查询总数
步骤1:查询总数
步骤 1 : 查询总数
通过find方法执行select(*),接着会返回一个List里面第一个元素即总数
package com.how2java.test;
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.how2java.dao.CategoryDAO;
public class TestSpring {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext(
new String[] { "applicationContext.xml" });
CategoryDAO dao = (CategoryDAO) context.getBean( "dao" );
List<Long> l =dao.find( "select count(*) from Category c" );
long total = l.get( 0 );
System.out.println(total);
}
}
|
更多内容,点击了解: https://how2j.cn/k/spring-hibernate/spring-hibernate-count/103.html