testpage.java

使用JSP+Servlet+Hibernate+Struts实现的一个学生软件发布平台

package edu.neu.sspp.test;

import java.util.Set;

import edu.neu.sspp.PageSeparator;
import edu.neu.sspp.hibernate.HibernateSessionFactory;
import edu.neu.sspp.hibernate.TComment;
import edu.neu.sspp.hibernate.TProject;
import edu.neu.sspp.hibernate.TProjectDAO;

public class TestPage {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		TestPage tp = new TestPage();
		//tp.commentPageTest();
		tp.dbPageTest();
	}
	
	public void dbPageTest() {
		TProjectDAO projectDAO = new TProjectDAO();
		TProject project = projectDAO.findById("40288027131a8c8c01131a8c905f0001");
		

		
		//确实是按顺序排列的,用这种方法得到数组,操作能更灵活一些(效率不如分页查询高)
		Set set = project.getTComments();
		Object[] comments = set.toArray();
		
		//懒读可以在这里关闭session
		HibernateSessionFactory.closeSession();
		
		/*
		for(int i = 0; i < comments.length; i++) {
			System.out.println(((TComment)comments[i]).getDate());
		}
		*/
		
		PageSeparator page = new PageSeparator(comments.length, 3);
		
		for(int i = 0; i < page.getTotalPage(); i++) {
			for(int j = page.getCurrentPageBegin(); j < page.getCurrentPageEnd(); j++)
				System.out.println(((TComment)comments[j]).getContent());
			System.out.println();
		}
	}
	
	public void commentPageTest() {
		PageSeparator page = new PageSeparator(103, 5);
		
		System.out.println("Total:" + page.getTotalPage());
		System.out.println("Exception:");
		try {
			page.setCurrentPage(0);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("Exception:");
		try {
			page.setCurrentPage(100);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		System.out.println("Current Page:" + page.getCurrentPage());
		System.out.println(page.getIsBegin());
		System.out.println(page.getIsEnd());
		
		
		System.out.println("Set To Begin!");
		page.setToBegin();
		System.out.println("Current Page:" + page.getCurrentPage());
		System.out.println(page.getIsBegin());
		System.out.println(page.getIsEnd());
		
		System.out.println("Set To End!");
		page.setToEnd();
		System.out.println("Current Page:" + page.getCurrentPage());
		System.out.println(page.getIsBegin());
		System.out.println(page.getIsEnd());
		
	}

}