Nhibernate一些问题解决方法
问题1.未能找到元素“urn:nhibernate-mapping-2.0:hibernate-mapping”的架构信息。 file:///c:/inetpub/wwwroot/WebApplication1/bin/Course.hbm.xml, (2, 2)处发生了错误。
解决办法：
一、Test.Model.Person.hbm.xml(2,2): XML validation error: 未能找到元素“urn:nhibernate-mapping-2.0:hibernate-mapping”的架构信息。
将2.0改为2.2
二、 The following types may not be used as proxies:
Test.Model.Person: method set_Id should be virtual
Test.Model.Person: method get_Name should be virtual
Test.Model.Person: method set_Name should be virtual
Test.Model.Person: method get_Id should be virtual
类配置文件中Class的Lazy改为false
网上搜到的三种解决方案：
1. You can follow the advice of the exception and add "virtual" to all of your properties, and make sure your class is non-sealed. Obviously you'll want to do this if you think you might want to take advantage of the lazy-initializing proxy feature. However, changing your classes may not be practical or advisable if you have a legacy codebase, or it may just bother you that a "transparent" persistence framework is dictating how you design certain aspects of your value classes. That's where Options 2 and 3 come in. Both of those involve changing back to the old behavior.
2. To change the lazy-initialization proxy setting for a specific class, you can add a "lazy='false'" attribute to the <class> mapping element. This might look something like: <class
name="NorthwindClasses.Category, NorthwindClasses"
table="Categories"
lazy="false"
> 3. To change the lazy-initialization proxy setting for all classes in a given mapping file, you can add a "default-lazy='false'" attribute to the <hibernate-mapping> element, as follows: <hibernate-mapping xmlns="urn:nhibernate-mapping-2.0" default-lazy="false"> Unfortunately, Option 3 doesn't really help you much if you do one <class> mapping per <hibernate-mapping> file, a practice which I personally follow and recommend. It's too bad, but there doesn't seem to be any way to set this default in the <nhibernate> global configuration. But if you do happen to have all of your <class>'s in one .hbm.xml file, "default-lazy" can help you out.
注：我是修改2.0为2.2解决问题的
问题2.
The following types may not be used as proxies:
Entitys.login: method get_Upwd should be virtual
Entitys.login: method get_id should be virtual
Entitys.login: method get_Uname should be virtual
Entitys.login: method set_Uname should be virtual
Entitys.login: method get_LastTime should be virtual
Entitys.login: method set_Upwd should be virtual
Entitys.login: method set_id should be virtual
Entitys.login: method set_LastTime should be virtual
----------------------------------------------------------------------------
引起问题的原因:
NHibernate 1.2 默认为类启用了延迟加载功能
解决方法：
方法1.在映射文件 class 标签中添加 Lazy="false" 属性
例:<class name="Entitys.login, Entitys" table="login" lazy="false">
方法2.为每个实体类的属性成员 添加 “ virtual ” 修饰符；
例:
public virtual int id
{
get { return m_id; }
set { m_id = value; }
}
注：我是在映射文件 class 标签中添加 Lazy="false" 属性解决问题的
问题3。
The dialect was not set. Set the property hibernate.dialect
注：在配置文件里设定Nhibernate的方言即可，如NHibernate.Dialect.OracleDialect，NHibernate.Dialect.MsSql2000Dialect
-----------搞定
问题4.
映射的时候，class name值的问题
class name=“命名空间.类名，项目名”
即class name=“NameSpace.类名，ProjectName”
解决办法：
一、Test.Model.Person.hbm.xml(2,2): XML validation error: 未能找到元素“urn:nhibernate-mapping-2.0:hibernate-mapping”的架构信息。
将2.0改为2.2
二、 The following types may not be used as proxies:
Test.Model.Person: method set_Id should be virtual
Test.Model.Person: method get_Name should be virtual
Test.Model.Person: method set_Name should be virtual
Test.Model.Person: method get_Id should be virtual
类配置文件中Class的Lazy改为false
网上搜到的三种解决方案：
1. You can follow the advice of the exception and add "virtual" to all of your properties, and make sure your class is non-sealed. Obviously you'll want to do this if you think you might want to take advantage of the lazy-initializing proxy feature. However, changing your classes may not be practical or advisable if you have a legacy codebase, or it may just bother you that a "transparent" persistence framework is dictating how you design certain aspects of your value classes. That's where Options 2 and 3 come in. Both of those involve changing back to the old behavior.
2. To change the lazy-initialization proxy setting for a specific class, you can add a "lazy='false'" attribute to the <class> mapping element. This might look something like: <class
name="NorthwindClasses.Category, NorthwindClasses"
table="Categories"
lazy="false"
> 3. To change the lazy-initialization proxy setting for all classes in a given mapping file, you can add a "default-lazy='false'" attribute to the <hibernate-mapping> element, as follows: <hibernate-mapping xmlns="urn:nhibernate-mapping-2.0" default-lazy="false"> Unfortunately, Option 3 doesn't really help you much if you do one <class> mapping per <hibernate-mapping> file, a practice which I personally follow and recommend. It's too bad, but there doesn't seem to be any way to set this default in the <nhibernate> global configuration. But if you do happen to have all of your <class>'s in one .hbm.xml file, "default-lazy" can help you out.
注：我是修改2.0为2.2解决问题的
问题2.
The following types may not be used as proxies:
Entitys.login: method get_Upwd should be virtual
Entitys.login: method get_id should be virtual
Entitys.login: method get_Uname should be virtual
Entitys.login: method set_Uname should be virtual
Entitys.login: method get_LastTime should be virtual
Entitys.login: method set_Upwd should be virtual
Entitys.login: method set_id should be virtual
Entitys.login: method set_LastTime should be virtual
----------------------------------------------------------------------------
引起问题的原因:
NHibernate 1.2 默认为类启用了延迟加载功能
解决方法：
方法1.在映射文件 class 标签中添加 Lazy="false" 属性
例:<class name="Entitys.login, Entitys" table="login" lazy="false">
方法2.为每个实体类的属性成员 添加 “ virtual ” 修饰符；
例:
public virtual int id
{
get { return m_id; }
set { m_id = value; }
}
注：我是在映射文件 class 标签中添加 Lazy="false" 属性解决问题的
问题3。
The dialect was not set. Set the property hibernate.dialect
注：在配置文件里设定Nhibernate的方言即可，如NHibernate.Dialect.OracleDialect，NHibernate.Dialect.MsSql2000Dialect
-----------搞定
问题4.
映射的时候，class name值的问题
class name=“命名空间.类名，项目名”
即class name=“NameSpace.类名，ProjectName”
