Hibernate查詢，返回new物件（注意這個新定義的類要有建構函式），使用sql帶條件分頁查詢並且把結果顯示到一個物件的集裡面的解決方案
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 2015-4-6 下午6:35:31
* @version V1.0
*/
public interface IIndexDao {
/**
* queryJoinedActivity(通過這個方法實現獲取首頁的分頁資訊)
*
* @Title: queryJoinedActivity
* @Description: 通過這個方法實現獲取首頁的分頁資訊
* @param @param pageNo 要查詢的頁數
* @param @param pageRow 每頁顯示記錄數
* @param @param params 查詢條件
* @param @return 設定檔案
* @return Page<IndexCombinationBean> 返回首頁制定頁面的結果集的結果集
* @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 2015-4-6 下午6:37:29
* @version V1.0
*/
@Repository
@Transactional
public class IndexDaoImpl extends BaseDAO implements IIndexDao {
/**
* 通過條件查詢分頁資訊
* params[0]:表示檢查名稱
* params[1]:表示首頁網址
* params[2]:表示網站標識碼
* params[3]:表示當前狀態
* params[4]:表示的是使用者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 ";
//通過網站名稱進行查詢
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("分頁查詢所有->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: 對應site表，task表，SiteService,CheckService表中的內容,供首頁使用
* @author Tuzuoquan
* @date 2015-4-6 下午6:54:50
* @version V1.0
*/
public class IndexCombinationBean {
/**
* 網站名稱
*/
private String wzmc;
/**
* 首頁地址
*/
private String url;
/**
* 網站標識碼，對應task表中的uuid
*/
private String siteCode;
/**
* 任務狀態
*/
private TaskStatus taskStatus;
/**
* 任務執行了的次數
*/
private int taskRunNum;
/**
* 任務開通總次數
*/
private int taskOpenNum;
/**
* 使用者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;
}
}
=====================================================================
要轉換成的物件：
package com.kuman.cartoon.entity.admin;
/**
* 用於分類導航部分的顯示
* @author toto
*/
public class CategoryNavigationBean {
private Integer id;
/**
* 內容ID
*/
private Integer nrid;
/**
* 封面
*/
private String cover;
/**
* 檔案路徑+檔名稱，在附件表中
*/
private String file_path;
/**
* 檔名，在附件表中
*/
private String file_name;
/**
* 名稱（標題）
*/
private String mc;
/**
* 作者
*/
private String zz;
/**
* 型別
*/
private String type;
/**
* 採集日期(時間)
*/
private String cj_date;
/**
* 序號
*/
private int porder;
/**
* 排行型別
*/
private int categoryCycle;
public String getCover() {
return cover;
}
public void setCover(String cover) {
this.cover = cover;
}
public Integer getNrid() {
return nrid;
}
public void setNrid(Integer nrid) {
this.nrid = nrid;
}
public String getFile_path() {
return file_path;
}
public void setFile_path(String file_path) {
this.file_path = file_path;
}
public String getFile_name() {
return file_name;
}
public void setFile_name(String file_name) {
this.file_name = file_name;
}
public String getMc() {
return mc;
}
public void setMc(String mc) {
this.mc = mc;
}
public String getZz() {
return zz;
}
public void setZz(String zz) {
this.zz = zz;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getCj_date() {
return cj_date;
}
public void setCj_date(String cj_date) {
this.cj_date = cj_date;
}
public int getPorder() {
return porder;
}
public void setPorder(int porder) {
this.porder = porder;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public int getCategoryCycle() {
return categoryCycle;
}
public void setCategoryCycle(int categoryCycle) {
this.categoryCycle = categoryCycle;
}
}
分頁查詢部分的程式碼：
/**
* 按照條件查詢到分類導航所需的資訊
*/
@Override
@Transactional(propagation = Propagation.REQUIRED)
public Page findCategoryNavigation(int page, int rows, String mc,
Integer type, Integer categoryCycle) {
try {
List<Object> params = new ArrayList<Object>();
String sql = "select t.id,c.nrid,a.file_path || '/' || a.file_name as cover," +
"a.file_path,a.file_name,c.mc,c.zz,c.type,c.cj_date,t.porder,t.category_cycle as categoryCycle " +
"from DM_CATEGORY_NAVIGATION t,DM_CONTENT c,DM_AFFIX a " +
"where c.nrid = t.content_id " +
"and a.nrid = c.nrid " +
"and a.nrid = t.content_id " +
"and a.file_type = 'HZHB_YLTS' ";
//標題
if (StringUtils.isNotBlank(mc)) {
sql += "and c.mc like ? ";
params.add("%" + mc + "%");
}
//型別
if (null != type) {
sql += "and c.type = ? ";
params.add(type);
}
//排行型別：1.日，2.周，3.月
if (null != categoryCycle) {
sql += "and t.category_cycle = ? ";
params.add(categoryCycle);
}
sql += "order by t.porder desc";
SQLQuery query = sessionFactory.getCurrentSession().createSQLQuery(sql);
for (int i = 0; i < params.size(); i++) {
query = (SQLQuery) query.setParameter(i, params.get(i));
}
query.addScalar("id",StandardBasicTypes.INTEGER)
.addScalar("nrid", StandardBasicTypes.INTEGER)
.addScalar("cover",StandardBasicTypes.STRING)
.addScalar("file_path",StandardBasicTypes.STRING)
.addScalar("file_name",StandardBasicTypes.STRING)
.addScalar("mc",StandardBasicTypes.STRING)
.addScalar("zz", StandardBasicTypes.STRING)
.addScalar("type", StandardBasicTypes.STRING)
.addScalar("cj_date",StandardBasicTypes.STRING)
.addScalar("porder", StandardBasicTypes.INTEGER)
.addScalar("categoryCycle",StandardBasicTypes.INTEGER)
.setResultTransformer(Transformers.aliasToBean(CategoryNavigationBean.class));
Page pageInfo = new Page();
pageInfo.setPageNum(page);
pageInfo.setNumPerPage(rows);
pageInfo.setAllRows(query.list().size());
query.setFirstResult((page - 1) * rows);
query.setMaxResults(rows);
pageInfo.setRecordList(query.list());
int allPages = pageInfo.getAllRows() / pageInfo.getNumPerPage();
if (pageInfo.getAllRows() % pageInfo.getNumPerPage() == 0) {
pageInfo.setAllPages(allPages);
} else {
//總頁數
pageInfo.setAllPages(allPages + 1);
}
return pageInfo;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}