jparepository does not stock blob properly - mysql

Question

i could'n stock byte in mysql database table using "jpa" hibernate under spring "mvc"
am getting file as multipart :file and some text from form
tables are created dynamically with hibernate
when trying to save file with form data,the data is stocked properly ,but about the file just 4 bytes blob stocked
the entity is like
import java.util.Set;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.OneToMany;
import javax.persistence.Table;
#Entity
#Table(name = "store")
public class Store {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name="storeid", updatable = false, nullable = false)
#org.springframework.data.annotation.Id
private Long storeid;
#Column(name = "stor_Name")
private String storName;
...
#Column(name = "stor_Logo", columnDefinition="BLOB")
#Lob
private byte[] storLogo;
#Column(name = "stor_Email")
private String storEmail;
#Column(name = "stor_Phone")
private String storPhone;
#OneToMany(mappedBy = "store")
private Set<Product> storProducts;
public Store(Long storeid,
String storName,
String storDesc,
byte[] storLogo,
Double storPrice,
String storeEmail,
String storePhone,
Set<Product> storProducts
) {
this.storeid = storeid;
this.storName = storName;
this.storDesc = storDesc;
this.storLogo = storLogo;
this.storEmail = storeEmail;
this.storPhone = storePhone;
this.storProducts = storProducts;
}
... setters and getters
repository is coded as well
import com.openstore.models.Store;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
#Repository
public interface StoreRepository extends JpaRepository<Store, Long> {
Store findByStorName(final String storName);
}
all is stocking properly except "storLogo" it stocks just 4 bytes of blob
i tray to change in application.proprieties to verify if the problem is "http" problem by modifying accepted file size , so it does not accept over sizing files
so i debug repository controller :
#RequestMapping(value = "save", method = RequestMethod.POST, consumes =
"multipart/form-data")
public String save(#RequestParam String storName,
#RequestParam String storDesc,
#RequestParam Double storPrice,
#RequestPart MultipartFile storLogo,
#RequestParam String storEmail,
#RequestParam String storPhone
) {
Store store = new Store();
store.setStorName(storName);
store.setStorDesc(storDesc);
try {
store.setStorLogo(storLogo.getBytes());
} catch (IOException ex) {
Logger.getLogger(StoreController.class.getName()).log(Level.SEVERE, null, ex);
}
store.setStoreEmail(storEmail);
store.setStorePhone(storPhone);
storeService.save(store);
return "redirect:/show/" + store.getstoreid();
}
and am getting the file just well in the store object ,in the service
so i guess is miss configuring problem ,maybe in jparepository or hibernate
any idea