角色和权限Hibernate实体映射配置
角色实体
package cn.itcast.oa.domain;
import java.util.HashSet;
import java.util.Set;
/**
* 岗位
*
* @author tyg
*
*/
public class Role {
private Long id;
private String name;
private String description;
private Set<User> users = new HashSet<User>();
private Set<Privilege> privileges = new HashSet<Privilege>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Set<User> getUsers() {
return users;
}
public void setUsers(Set<User> users) {
this.users = users;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Set<Privilege> getPrivileges() {
return privileges;
}
public void setPrivileges(Set<Privilege> privileges) {
this.privileges = privileges;
}
}
权限实体
package cn.itcast.oa.domain;
import java.util.HashSet;
import java.util.Set;
/**
* 权限
*
* @author tyg
*
*/
public class Privilege {
private Long id;
private String url;
private String name; // 权限名称
private Set<Role> roles = new HashSet<Role>();
private Privilege parent; // 上级权限
private Set<Privilege> children = new HashSet<Privilege>(); // 下级权限
public Privilege() {
}
public Privilege(String name, String url, Privilege parent) {
this.name = name;
this.url = url;
this.parent = parent;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<Role> getRoles() {
return roles;
}
public void setRoles(Set<Role> roles) {
this.roles = roles;
}
public Privilege getParent() {
return parent;
}
public void setParent(Privilege parent) {
this.parent = parent;
}
public Set<Privilege> getChildren() {
return children;
}
public void setChildren(Set<Privilege> children) {
this.children = children;
}
}
两者映射
<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="cn.itcast.oa.domain"> <class name="Role" table="itcast_role"> <id name="id"> <generator class="native"/> </id> <property name="name" /> <property name="description" /> <!-- users属性，本类与User的多对多 --> <set name="users" table="itcast_user_role"> <key column="roleId"></key> <many-to-many class="User" column="userId"></many-to-many> </set> <!-- privileges属性，本类与Privilege的多对多 --> <set name="privileges" table="itcast_role_privilege" lazy="false"> <key column="roleId"></key> <many-to-many class="Privilege" column="privilegeId"></many-to-many> </set> </class> </hibernate-mapping>
<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="cn.itcast.oa.domain"> <class name="Privilege" table="itcast_privilege"> <id name="id"> <generator class="native"/> </id> <property name="url" /> <property name="name" /> <!-- roles属性，本类与Role的多对多--> <set name="roles" table="itcast_role_privilege"> <key column="privilegeId"></key> <many-to-many class="Role" column="roleId"></many-to-many> </set> <!-- parent属性，本类与Privilege（上级）的多对一--> <many-to-one name="parent" class="Privilege" column="parentId"></many-to-one> <!-- children属性，本类与Privilege（下级）的一对多--> <set name="children" lazy="false"> <key column="parentId"></key> <one-to-many class="Privilege"/> </set> </class> </hibernate-mapping>
Hibernate实体映射总结
<!-- users属性，本类与User的一对多 -->
格式：？属性，本类与？的？
?1 属性名
?2 关联对类型
?3 关系
多对一：
<many-to-one name="" class="" column=""></many-to-one>
一对多（Set）：
<set name="">
<key column=""></key>
<one-to-many class=""/>
</set>
多对多（Set）：
<set name="" table="">
<key column=""></key>
<many-to-many class="" column=""></many-to-many>
</set>
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