u05tblogbo.java

持久层hibernate技术使用的一个例子

package cn.hope.front.bo;

import java.util.List;
import org.apache.log4j.Logger;
import cn.hope.front.pojo.TBlog;
import cn.hope.front.pojo.U07CommonListVO;
import cn.hope.front.pojo.dao.TBlogDAO;
import cn.hope.front.util.U07Page;

public class U05TBlogBO {
	Logger log = Logger.getLogger(U05TBlogBO.class.getName());
	public TBlogDAO tBlogDao = new TBlogDAO();
	public List searchTBlogBO() throws Exception{
		List list2 = null;
		try {
			list2 = tBlogDao.searchTBlog();
		} catch (Exception e) {
			log.error(e);
			e.printStackTrace();
		}
		return list2;
	}

	public TBlog searchTBlogBOByKey(Integer tbid) throws Exception{
		TBlog tBlog =null;
		try {
			tBlog = tBlogDao.searchTBlogByKey(tbid);
		} catch (Exception e) {
			log.error(e);
			e.printStackTrace();
		}
		return tBlog;
	}
	
	public void deleteTBlog(TBlog tBlog) throws Exception{
		try{
			tBlogDao.deleteByKey(tBlog);
		}
		catch(Exception e){
			log.error(e);
			e.printStackTrace();
			throw new Exception(e);
		}
	}
	
	public TBlog viewTBlogBO(Integer id) throws Exception{
		TBlog tBlog = null;
		try{
			tBlog=tBlogDao.viewTBlogByKey(id);
		}
		catch(Exception e){
			e.printStackTrace();
		}
		return tBlog;
	}
	
	
	public U07CommonListVO serach(TBlog tBlog, int start, boolean isEq)
			throws Exception {
		U07CommonListVO cl_vo = new U07CommonListVO();
		int range = 5;// 每页显示记录数
		int count = 0;// 总记录数
		List list = null;// 查询得到的结果集
		U07Page page = new U07Page();// 分页
		String fenyeStr = "";
		try {
			list = tBlogDao.search(tBlog, start, range, isEq);
			count = tBlogDao.getCount();
			cl_vo.setRs(list);
			cl_vo.setCount(count);
			cl_vo.setStart(start);
			cl_vo.setRange(range);
		
			fenyeStr = page.fenye(cl_vo);
			cl_vo.setFenye(fenyeStr);
			cl_vo.setCurrentPage(page.getCurrentPage());
			cl_vo.setTotalPage(page.getTotalPage());
			cl_vo.setStartSub(page.getStartSub());
			cl_vo.setOverSub(page.getOverSub());
		} catch (Exception e) {
			log.error(e);
			e.printStackTrace();
			throw new Exception(e);
		}
		return cl_vo;
		}
}