studentserviceimpl.java

struts分页功能实现代码 开发环境 ECLIPSE+STRUTS+HIBERNATE

package cn.com.javapro.service;

import cn.com.javapro.dao.IStudentDAO;
import cn.com.javapro.dao.StudentDAOImpl;
import cn.com.javapro.fwk.PageRoll;
import cn.com.javapro.vo.Student;

/**
 * 
 * @description:学生对象业务服务实现
 * @group: javapro 
 * @author: vince
 *
 */
public class StudentServiceImpl implements IStudentService{

	/**
	 *   查询多个对象
	 * 　实现父类方法  
	 * 　@see bsw.service.IStudentService#search(bsw.fwk.PageRoll)
	 */
	public Student[] search(PageRoll pageRoll){
		String hql = "from Student";
		pageRoll.setWhereClause(hql);
		pageRoll.setPageSize(4);
		IStudentDAO studentDAO = new StudentDAOImpl();
		Student[] student = studentDAO.search(pageRoll);
		return student;
	}
	/**
	 * 测试
	 * @param args
	 */
	public static void main(String[] args){
		PageRoll pageRoll = new PageRoll();
		IStudentService studentService = new StudentServiceImpl();
		Student[] student = studentService.search(pageRoll);
		
		
		//
		System.out.println("总记录数："+pageRoll.getTotalCount());
		System.out.println("当前页："+pageRoll.getCurrentPage());
		System.out.println("总页数："+pageRoll.getPageCount());
		for(int i=0;i<student.length;i++){
			System.out.println(student[i].getSname());
		}
	}
}