JPQL多实体查询

package  y.model;

import  java.io.Serializable;
import  java.util.Date;

/**
* 多表联合查询测试实体类
* @param classname
* @param info
* @param project
* @param classChineseName
*/

public  class  Test  implements  Serializable {


    //无参数构造方法
    public  Test()
    {
        super ();
    }

    //编号
    private  String CId;


    public  String getCId(){
        return  this .CId;
    }

    public  void  setCId(String CId){
        this .CId=CId;
}
    //姓名
    private  String CName;


    public  String getCName(){
        return  this .CName;
    }

    public  void  setCName(String CName){
        this .CName=CName;
}
    //编号
    private  String DId;


    public  String getDId(){
        return  this .DId;
    }

    public  void  setDId(String DId){
        this .DId=DId;
}
    //姓名
    private  String DName;


    public  String getDName(){
        return  this .DName;
    }

    public  void  setDName(String DName){
        this .DName=DName;
}
    //含参数构造方法
    public Test(String cId,String cName,String dId,String dName)
    {
        super();
        this.CId=cId;
        this.CName=cName;
        this.DId=dId;
        this.DName=dName;
    }
}

package  y.model;

import  java.io.Serializable;
import  java.util.Date;
import  javax.persistence.Column;
import  javax.persistence.Entity;
import  javax.persistence.GeneratedValue;
import  javax.persistence.Id;
import  javax.persistence.Table;
import  org.hibernate.annotations.GenericGenerator;

@Entity
@Table (name =  "test1" )
public  class  Test1  implements  Serializable {
    @Id
    @GenericGenerator (name =  "generator" , strategy =  "uuid.hex" )
    @GeneratedValue (generator =  "generator" )

    @Column (name =  "C_Id" )
    private  String CId;

    @Column (name =  "C_Name" )
    private  String CName;

    @Column (name =  "C_Pwd" )
    private  String CPwd;

    @Column (name =  "C_Sex" )
    private  String CSex;

    @Column (name =  "C_Ago" )
    private  String CAgo;

    public  String getCId(){
        return  this .CId;
    }

    public  void  setCId(String CId){
        this .CId=CId;
    }

    public  String getCName(){
        return  this .CName;
    }

    public  void  setCName(String CName){
        this .CName=CName;
    }

    public  String getCPwd(){
        return  this .CPwd;
    }

    public  void  setCPwd(String CPwd){
        this .CPwd=CPwd;
    }

    public  String getCSex(){
        return  this .CSex;
    }

    public  void  setCSex(String CSex){
        this .CSex=CSex;
    }

    public  String getCAgo(){
        return  this .CAgo;
    }

    public  void  setCAgo(String CAgo){
        this .CAgo=CAgo;
    }

}

package  y.model;

import  java.io.Serializable;
import  java.util.Date;
import  javax.persistence.Column;
import  javax.persistence.Entity;
import  javax.persistence.GeneratedValue;
import  javax.persistence.Id;
import  javax.persistence.Table;
import  org.hibernate.annotations.GenericGenerator;

@Entity
@Table (name =  "test2" )
public  class  Test2  implements  Serializable {
    @Id
    @GenericGenerator (name =  "generator" , strategy =  "uuid.hex" )
    @GeneratedValue (generator =  "generator" )

    @Column (name =  "D_Id" )
    private  String DId;

    @Column (name =  "D_Name" )
    private  String DName;

    @Column (name =  "D_Pwd" )
    private  String DPwd;

    @Column (name =  "D_Age" )
    private  Integer DAge;

    @Column (name =  "D_Addr" )
    private  String DAddr;

    @Column (name =  "D_Sex" )
    private  String DSex;

    public  String getDId(){
        return  this .DId;
    }

    public  void  setDId(String DId){
        this .DId=DId;
    }

    public  String getDName(){
        return  this .DName;
    }

    public  void  setDName(String DName){
        this .DName=DName;
    }

    public  String getDPwd(){
        return  this .DPwd;
    }

    public  void  setDPwd(String DPwd){
        this .DPwd=DPwd;
    }

    public  Integer getDAge(){
        return  this .DAge;
    }

    public  void  setDAge(Integer DAge){
        this .DAge=DAge;
    }

    public  String getDAddr(){
        return  this .DAddr;
    }

    public  void  setDAddr(String DAddr){
        this .DAddr=DAddr;
    }

    public  String getDSex(){
        return  this .DSex;
    }

    public  void  setDSex(String DSex){
        this .DSex=DSex;
    }

}

单元测试类 MyJunitTest

import  java.util.ArrayList;
import  java.util.Collections;
import  java.util.Date;
import  java.util.List;
import  java.util.Vector;

import  org.hibernate.Query;
import  org.hibernate.Session;
import  org.hibernate.Transaction;

import  y.model.Test;
import  y.model.Test1;
import  y.model.Test2;

import  com.targ.track.financeManager.buildProjectAccount.domain.BuildProjectAccount;
import  com.targ.track.financeManager.buildProjectAccount.domain.BuildProjectAccountDetail;
import  com.targ.track.startAppManager.domain.StartApplication;



public  class  MyJunitTest {
    @org .junit.Test
    public  void  testDDL(){
        //插入数据
        HibernateTest.doInHibernateSession( new  InHibernateSession(){
            @Override
            public  Object doInHibernateSession(Session session) {
                Test1 test1 =  new  Test1();
                test1.setCAgo( "CAgo" );
                test1.setCName( "CName" );
                test1.setCPwd( "CPwd" );
                test1.setCSex( "CSex" );
                Test2 test2 =  new  Test2();
                test2.setDAddr( "DAddr" );
                test2.setDAge( 123 );
                test2.setDName( "DName" );
                test2.setDPwd( "DPwd" );
                test2.setDSex( "DSex" );
                session.save(test1);
                session.save(test2);
                return  null ;
            }
        });
        //查询
         List all = (List) HibernateTest.doInHibernateSession( new  InHibernateSession(){
            public  Object doInHibernateSession(Session session) {
                String sql="select new y.model.Test(c.CId,c.CName,d.DId,d.DName) from Test1 c,Test2 d where c.CId=d.DId";
                Query query = session.createQuery(sql);
                return  query.list();
            }
        });
         for (Test test : all){
             System.out.println(test);
         }

    }
    public  static  class  HibernateTest {
        public  static  Object doInHibernateSession(InHibernateSession doInHibernateSession){
            Session session = HibernateSessionFactory.getSession();
            Transaction transaction = session.beginTransaction();
            try {
                Object object =  doInHibernateSession.doInHibernateSession(session);
                transaction.commit();
                return  object;
            } catch (RuntimeException e){
                try {
                    System.err.println( "rollback" );
                    transaction.rollback();
                } catch (RuntimeException ex){
                    System.err.println( "回滚失败！" );
                }
                throw  e;
            } finally {
                //HibernateSessionFactory.closeSession();
            }

        }

    }
    public  interface  InHibernateSession {
        public  Object doInHibernateSession(Session session);
    }

}