failed to lazily initialize a collection of role: cn.qcc.bos.domain.take_delivery.Order.workBills,

解决方式：
对多集合数据懒加载问题，排除掉关联集合数据转换 json

添加一个注解 @JSON(serialize = false)  在实体类中的集合的get方法上添加 即可 要是maven工程 最后记得install

Caused by: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of 
role: cn.qcc.bos.domain.take_delivery.Order.workBills, could not initialize proxy - no Session
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:563)
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded
(AbstractPersistentCollection.java:205)at org.hibernate.collection.internal.AbstractPersistentCollection.initialize

(AbstractPersistentCollection.java:542)at org.hibernate.collection.internal.AbstractPersistentCollection.read

(AbstractPersistentCollection.java:133)
at org.hibernate.collection.internal.PersistentSet.equals(PersistentSet.java:423)
at java.util.Vector.indexOf(Vector.java:404)
at java.util.Vector.contains(Vector.java:363)
at org.apache.struts2.json.JSONWriter.value(JSONWriter.java:117)
at org.apache.struts2.json.JSONWriter.add(JSONWriter.java:401)
at org.apache.struts2.json.JSONWriter.bean(JSONWriter.java:231)
... 74 more