我就动手做了个小的事例,希望对大家有用!
----BlogUser 表
public class BlogUser implements java.io.Serializable {
private static final long serialVersionUID = 8850445505288137285L;
private Integer userId;
private String userName;
private String passWordOne;
private Set<BlogFile> blogFile = new HashSet<BlogFile>();
//省略set & get ....
}
----BlogFile 表
public class BlogFile implements java.io.Serializable {
private static final long serialVersionUID = -1963389377781856294L;
private Integer fileId;
private String filePath;
private String fileName;
private BlogUser blogUser; //private String createUserId;
//省略set & get ....
}
---BlogUser.hbm.xml
<hibernate-mapping>
<class name="model.user.BlogUser" table="BLOG_User" schema="dbo" catalog="Blog"
dynamic-update="true" optimistic-lock="version" >
<id name="userId" type="java.lang.Integer">
<column name="userId" />
<generator class="native" />
</id>
<property name="userName" type="java.lang.String">
<column name="userName" length="50" />
</property>
<property name="passWordOne" type="java.lang.String">
<column name="passWordOne" length="50" />
</property>
<set name="blogFile" inverse="true" lazy="true" cascade="all-delete-orphan">
<key>
<column name="userId" />
</key>
<one-to-many class="model.user.BlogFile"/>
</set>
</class>
</hibernate-mapping>
---BlogFile.hbm.xml
<hibernate-mapping>
<class name="model.user.BlogFile" table="Blog_File" schema="dbo" catalog="Blog">
<id name="fileId" type="java.lang.Integer">
<column name="fileId" />
<generator class="native" />
</id>
<property name="filePath" type="java.lang.String">
<column name="filePath" length="200" />
</property>
<property name="fileName" type="java.lang.String">
<column name="fileName" length="200" />
</property>
<many-to-one name="blogUser"
class="model.user.BlogUser">
<column name="createUserId" /> <!--createUserId 是blogUser的主键userId -->
</many-to-one>
</class>
</hibernate-mapping>
---action
public ActionForward insertUser(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
BlogUser blogUser = new BlogUser();
Set<BlogFile> file = new HashSet<BlogFile>();
blogUser.setUserName("mousetsun");
blogUser.setPassWordOne("111111");
BlogFile blogFile = new BlogFile();
blogFile.setFileName("aaa");
blogFile.setFilePath("bbb");
blogFile.setBlogUser(blogUser);
file.add(blogFile);
BlogFile blogFile1 = new BlogFile();
blogFile1.setFileName("ccc");
blogFile1.setFilePath("ddd");
blogFile1.setBlogUser(blogUser);
file.add(blogFile1);
blogUser.setBlogFile(file);
//spring...service 调用dao
BlogUserService blogUserService = Locator
.lookupService(BlogUserService.class);
BlogUser user = blogUserService.insertUser(blogUser);
//********
System.out.println(user.getBlogFile().size());
return mapping.findForward("index");
}
---DAO
//GenericDaoHibernateImpl 是我自己写的一些hibernate常用接口方法
public class BlogUserDaoImpl extends GenericDaoHibernateImpl<BlogUser, Integer> implements BlogUserDao{
public BlogUser insertUser(BlogUser blogUser) {
// TODO Auto-generated method stub
this.getHibernateTemplate().clear();
blogUser = (BlogUser) this.getHibernateTemplate()
.merge(blogUser);
this.getHibernateTemplate().flush();
return blogUser;
}
}
PS: 有写的不好地方希望大家改正!
