Hibernate查询，返回new对象（注意这个新定义的类要有构造函数），

IIndexDao

package com.ucap.netcheck.dao;

import com.ucap.netcheck.combination.beans.IndexCombinationBean;
import com.ucap.netcheck.common.Page;
import com.ucap.netcheck.common.dao.GenericDao;
import com.ucap.netcheck.entity.Site;

/**  
 * @Title: IIndexDao.java
 * @Package com.ucap.netcheck.index.dao
 * @Description:
 * @author Zuoquan Tu
 * @date 2015⑷⑹ 下午6:35:31
 * @version V1.0  
 */
public interface IIndexDao {
 
 /**
   * queryJoinedActivity(通过这个方法实现获得首页的分页信息)
   *
   * @Title: queryJoinedActivity
   * @Description: 通过这个方法实现获得首页的分页信息
   * @param @param pageNo 要查找的页数
   * @param @param pageRow 每页显示记录数
   * @param @param params 查找条件
   * @param @return 设定文件
   * @return Page<IndexCombinationBean>  返回首页制定页面的结果集的结果集
   * @throws
  */
 public Page<IndexCombinationBean> queryIndexInfoByPage(
   int pageNo,int pageRow, Object... params);
}

IndexDaoImpl

package com.ucap.netcheck.dao.impl;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import com.ucap.netcheck.combination.beans.IndexCombinationBean;
import com.ucap.netcheck.common.Page;
import com.ucap.netcheck.common.dao.BaseDAO;
import com.ucap.netcheck.dao.IIndexDao;
import com.ucap.netcheck.entity.CheckService;
import com.ucap.netcheck.entity.Site;
import com.ucap.netcheck.entity.SiteService;
import com.ucap.netcheck.entity.TaskStatus;
import com.ucap.netcheck.exception.DAOException;

/**  
 * @Title: IndexDaoImpl.java
 * @Package com.ucap.netcheck.index.dao
 * @Description:
 * @author Zuoquan Tu
 * @date 2015⑷⑹ 下午6:37:29
 * @version V1.0  
 */
@Repository
@Transactional
public class IndexDaoImpl extends BaseDAO implements IIndexDao {
 
 /**
  * 通过条件查询分页信息
  * params[0]:表示检查名称
  * params[1]:表示首页网址
  * params[2]:表示网站标识码
  * params[3]:表示当前状态
  * params[4]:表示的是用户id
  */
 @SuppressWarnings("unchecked")
 public Page<IndexCombinationBean> queryIndexInfoByPage(
   int pageNo,int pageRow, Object... params) {
  try {
   //Map<String, Object> map = new HashMap<String, Object>();
   List<Object> lists = new ArrayList<Object>();
   String sql = "SELECT new com.ucap.netcheck.combination.beans.IndexCombinationBean(" +
                  "s.wzmc,s.url,s.siteCode,cs.taskStatus,cs.taskRunNum," +
                  "cs.taskOpenNum,cs.userId) " +
          "FROM " + Site.class.getSimpleName() + " s,"
                  + CheckService.class.getSimpleName() + " cs,"
                  + SiteService.class.getSimpleName() + " ss "  +
          "WHERE ss.siteCode = s.siteCode AND ss.servId = cs.servId ";
   
   //通过网站名称进行查询
   if (StringUtils.isNotBlank((String)params[0])) {
    sql += " AND s.wzmc like ? ";
    lists.add("%" + (String)params[0] + "%");
   }
   if (StringUtils.isNotBlank((String)params[1])) {
    sql += " AND s.url like ? ";
    lists.add("%" + (String)params[1] + "%");
   }
   if (StringUtils.isNotBlank((String)params[2])) {
                sql += " AND s.siteCode like ? ";
                lists.add("%" + (String)params[2] + "%");
   }
   if (null != (TaskStatus)params[3]) {
    //sql += " AND cs.taskStatus like ? ";
    //lists.add("%" + (String)params[3] + "%");
    
    sql += " AND cs.taskStatus =?";
    lists.add((TaskStatus)params[3]);
    
    
   }
   if (null != (Integer)params[4]) {
    sql += " AND cs.userId =? ";
    lists.add((Integer)params[4]);
   }
   
   Page<IndexCombinationBean> pages = this.queryByPage(sql, pageNo, pageRow, lists);
   
   //System.out.println("pages.getRecordList().size() = " + pages.getRecordList().size());
   return pages;
  } catch (Exception ex) {
   throw new DAOException("分页查询所有->ERROR", ex);
  }
 }
}

IndexCombinationBean
package com.ucap.netcheck.combination.beans;

import com.ucap.netcheck.entity.TaskStatus;

/**  
 * @Title: IndexCombinationBean.java
 * @Package com.ucap.netcheck.combination.beans
 * @Description: 对应site表，task表，SiteService,CheckService表中的内容,供首页使用
 * @author Tuzuoquan
 * @date 2015⑷⑹ 下午6:54:50
 * @version V1.0  
 */
public class IndexCombinationBean {
    /**
     * 网站名称
     */
 private String wzmc;
 
 /**
  * 首页地址
  */
 private String url;
 
 /**
  * 网站标识码，对应task表中的uuid
  */
 private String siteCode;
 
 /**
  * 任务状态
  */
 private TaskStatus taskStatus;
 
 /**
  * 任务履行了的次数
  */
 private int taskRunNum;
 
 /**
  * 任务开通总次数
  */
 private int taskOpenNum;
 
 /**
  * 用户id
  */
 private int userId;

 public IndexCombinationBean(String wzmc, String url, String siteCode,
   TaskStatus taskStatus, int taskRunNum, int taskOpenNum, int userId) {
  this.wzmc = wzmc;
  this.url = url;
  this.siteCode = siteCode;
  this.taskStatus = taskStatus;
  this.taskRunNum = taskRunNum;
  this.taskOpenNum = taskOpenNum;
  this.userId = userId;
 }

 public String getWzmc() {
  return wzmc;
 }

 public void setWzmc(String wzmc) {
  this.wzmc = wzmc;
 }

 public String getUrl() {
  return url;
 }

 public void setUrl(String url) {
  this.url = url;
 }

 public String getSiteCode() {
  return siteCode;
 }

 public void setSiteCode(String siteCode) {
  this.siteCode = siteCode;
 }

 public TaskStatus getTaskStatus() {
  return taskStatus;
 }

 public void setTaskStatus(TaskStatus taskStatus) {
  this.taskStatus = taskStatus;
 }

 public int getTaskRunNum() {
  return taskRunNum;
 }

 public void setTaskRunNum(int taskRunNum) {
  this.taskRunNum = taskRunNum;
 }

 public int getTaskOpenNum() {
  return taskOpenNum;
 }

 public void setTaskOpenNum(int taskOpenNum) {
  this.taskOpenNum = taskOpenNum;
 }

 public int getUserId() {
  return userId;
 }

 public void setUserId(int userId) {
  this.userId = userId;
 }
}

生活不易，码农辛苦
如果您觉得本网站对您的学习有所帮助,可以手机扫描二维码进行捐赠