mongodb之morphia

mongodb之morphia

lib目錄

morphia-0.99.jar
morphia-logging-slf4j-0.99.jar
morphia-validation-0.99.jar
cglib-nodep-2.1_3.jar
proxytoys-1.0.jar
mongo-2.7.3.jar
slf4j-log4j12-1.6.1.jar
log4j-1.2.15.jar
slf4j-api-1.6.1.jar

import  org.bson.types.ObjectId;

import  com.google.code.morphia.annotations.Id;

public   class  Address {
    @Id
     private  ObjectId id;
     private  String street;
     private  String city;
     private  String postCode;
     private  String country;
    
     public  ObjectId getId() {
         return  id;
    }
     public   void  setId(ObjectId id) {
         this .id  =  id;
    }
     public  String getStreet() {
         return  street;
    }
     public   void  setStreet(String street) {
         this .street  =  street;
    }
     public  String getCity() {
         return  city;
    }
     public   void  setCity(String city) {
         this .city  =  city;
    }
     public  String getPostCode() {
         return  postCode;
    }
     public   void  setPostCode(String postCode) {
         this .postCode  =  postCode;
    }
     public  String getCountry() {
         return  country;
    }
     public   void  setCountry(String country) {
         this .country  =  country;
    }
    
    
}

import  org.bson.types.ObjectId;

import  com.google.code.morphia.annotations.Embedded;
import  com.google.code.morphia.annotations.Entity;
import  com.google.code.morphia.annotations.Id;

@Entity
public   class  Hotel {
    
    @Id
     private  ObjectId id;
     private  String name;
     private   int  stars;
    @Embedded
     private  Address address;
    
     public  ObjectId getId() {
         return  id;
    }
     public   void  setId(ObjectId id) {
         this .id  =  id;
    }
     public  String getName() {
         return  name;
    }
     public   void  setName(String name) {
         this .name  =  name;
    }
     public   int  getStars() {
         return  stars;
    }
     public   void  setStars( int  stars) {
         this .stars  =  stars;
    }
     public  Address getAddress() {
         return  address;
    }
     public   void  setAddress(Address address) {
         this .address  =  address;
    }
    
    
    
}

import  java.net.UnknownHostException;
import  java.util.Iterator;
import  java.util.List;

import  org.bson.types.ObjectId;

import  com.google.code.morphia.Datastore;
import  com.google.code.morphia.Morphia;
import  com.mongodb.Mongo;
import  com.mongodb.MongoException;


public   class  Main {

     public   static   void  main(String[] args) {
         try  {
            Mongo mongo = new  Mongo( " 127.0.0.1 " , 27017 );
            Morphia morphia = new  Morphia();
             // 映射Hotel、Address
            morphia.map(Hotel. class ).map(Address. class );
             // 创建数据库hotel
            Datastore datastore = morphia.createDatastore(mongo, " hotel " );
            
             /* Hotel hotel=new Hotel();
            hotel.setName("Jiefang Hotel");
            hotel.setStars(3);
            
            Address address=new Address();
            address.setStreet("xi'an jiefang street");
            address.setCountry("China");
            address.setPostCode("710075");
            address.setCity("xi'an");
            
            hotel.setAddress(address); */
            
             // 持久化hotel到数据库
             // datastore.save(hotel);
            
             // 根据ObjectId查询一条记录
             // String hotelId = "4f5dafcbf602eeffc946c648";
             // Hotel hote=datastore.get(Hotel.class,new ObjectId(hotelId));
             // System.out.println(hote.getName()+"\t"+hote.getAddress().getCountry()+"\t"+hote.getAddress().getStreet());
            
             // find 根据条件查询
             /* List<Hotel> hotels=datastore.find(Hotel.class, "stars > ", 3).asList();
            for (Iterator<Hotel> iterator = hotels.iterator(); iterator.hasNext();) {
                Hotel name = (Hotel) iterator.next();
                System.out.println(name.getName()+"\t"+name.getAddress().getCountry()+"\t"+name.getAddress().getStreet());
            } */
            
             // find 根据条件查询 星级大于1 按星级降序排列
             /* List<Hotel> hotels = datastore.find(Hotel.class, "stars > ", 1).order(" stars desc ").asList();
            for (Iterator<Hotel> iterator = hotels.iterator(); iterator.hasNext();) {
                Hotel name = (Hotel) iterator.next();
                System.out.println(name.getName()+"\t"+name.getAddress().getCountry()+"\t"+name.getAddress().getStreet());
            } */
            
            
             // find 根据条件查询 查询酒店名称是Jiefang Hotel
            Hotel hotel  =  datastore.find(Hotel. class ,  " name =  " ,  " Jiefang Hotel " ).get();
            System.out.println(hotel.getName() + " \t " + hotel.getAddress().getCountry() + " \t " + hotel.getAddress().getStreet());
            
            
            List < Hotel >  hotels = datastore.find(Hotel. class ).asList();
             for  (Iterator < Hotel >  iterator  =  hotels.iterator(); iterator.hasNext();) {
                Hotel name  =  (Hotel) iterator.next();
                System.out.println(name.getId() + " \t " + name.getName() + " \t " + name.getAddress().getCountry() + " \t " + name.getAddress().getStreet());
            }

             // 删除 King Hotel
             // datastore.findAndDelete(datastore.find(Hotel.class,"name","King Hotel"));
            
             /* System.out.println("--------------------删除后------------------");
            hotels=datastore.find(Hotel.class).asList();
            for (Iterator<Hotel> iterator = hotels.iterator(); iterator.hasNext();) {
                Hotel name = (Hotel) iterator.next();
                System.out.println(name.getId()+"\t"+name.getName()+"\t"+name.getAddress().getCountry()+"\t"+name.getAddress().getStreet());
            } */
            
            
             // 修改编号为4f5db225f6027225c6d87629的星级为8星级
            datastore.update(datastore.get(Hotel. class ,  new  ObjectId( " 4f5db225f6027225c6d87629 " )), datastore.createUpdateOperations(Hotel. class ).set( " stars " ,  8 ));
            
            hotels = datastore.find(Hotel. class ).asList();
             for  (Iterator < Hotel >  iterator  =  hotels.iterator(); iterator.hasNext();) {
                Hotel name  =  (Hotel) iterator.next();
                System.out.println(name.getId() + " \t " + name.getName() + " \t " + name.getStars() + " \t " + name.getAddress().getCountry() + " \t " + name.getAddress().getStreet());
            }
            
        }  catch  (UnknownHostException e) {
            e.printStackTrace();
        }  catch  (MongoException e) {
            e.printStackTrace();
        }
    }
    
}