java - How to solve Hibernate's LazyInitializationException -


CustomerEntity has been mapped to the table in the table Customer . There are multiple connections to order and addresses in this now I retrieve the customer with the order with the next code: 

  DetachedCriteria criteria = DetachedCriteria.forClass (CustomerEntity.class); Criterion Add (restriction. Eq ("id", patient id)); Criteria.createCriteria ("Order", CriteriaSpecification.LEFT_JOIN) .add (Restrictions.and (Restrictions.isNull ("deletedDate"), Restrictions.or (Restrictions.isNull ("old"), Restrictions.eq ("old", BoolType .false)))); Customer Interval Customer = Quarriage search criteria);   
 Queries:  
  public   
 But when I  customer.getAddresses Trying to apply ()  The next exception is thrown:  
  org.hibernate.LazyInitializationException: Failed to initialize a collection of the role lazily: No, no session or session Closed   
 This is because the default hibernate loads more than one unit How can I recover  the customer  unit its  addresses without modifying it?    
 
 
 this exception occurs when you try to access a lazy-loading collection or field when  session  is not available. When application loads backend of the data and closes the session, you pass this data, for example, the frontend where there is no truth Already  
 This is some of the solution possible. Go ways:  
     
  •  is eager load reliable, but may slow down solution;  
  •  The way the session is managed, consider the strategy  session-per-request  which is suitable for a typical web application. Information in question can be useful to you   
     For information about other session management strategies, try reading.

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