t3用户-角色-权限hibernate经典配置

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用户-角色-权限hibernate经典配置。

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既然有人问起，我就写下说明吧。在文章中间的配置文件那里。权当回忆一下，也帮助更多人。这是以前学校时写的，没有注释。都是贴的代码笔记。看到的莫要见怪。欢迎学习交流。

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首先是三个实体类：

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用户-》角色-》权限

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package com.tudou.hibernates.RoleManage;

import java.util.HashSet;

import java.util.Set;

public class User {

private int uid;

private String userName;

private String nickName;

private String password;

private String mark;

private Set<RoleUser> roleUsers = new HashSet<RoleUser>();

public User() {

super();

}

public User(String userName, String nickName, String password, String mark,

Set<RoleUser> roleUsers) {

super();

this.userName = userName;

this.nickName = nickName;

this.password = password;

this.mark = mark;

this.roleUsers = roleUsers;

}

public int getUid() {

return uid;

}

public void setUid(int uid) {

this.uid = uid;

}

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

public String getNickName() {

return nickName;

}

public void setNickName(String nickName) {

this.nickName = nickName;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

public String getMark() {

return mark;

}

public void setMark(String mark) {

this.mark = mark;

}

public Set<RoleUser> getRoleUsers() {

return roleUsers;

}

public void setRoleUsers(Set<RoleUser> roleUsers) {

this.roleUsers = roleUsers;

}

}

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package com.tudou.hibernates.RoleManage;

import java.util.HashSet;

import java.util.Set;

public class Role {

private int rid;

private String roleName;

private String dsc;

private Set<RoleUser> roleUsers = new HashSet<RoleUser>();

private Set<FunctionsRole> functionRoles = new HashSet<FunctionsRole>();

public Role() {

super();

}

public Role(String roleName, String dsc, Set<RoleUser> roleUsers,

Set<FunctionsRole> functionRoles) {

super();

this.roleName = roleName;

this.dsc = dsc;

this.roleUsers = roleUsers;

this.functionRoles = functionRoles;

}

public int getRid() {

return rid;

}

public void setRid(int rid) {

this.rid = rid;

}

public String getRoleName() {

return roleName;

}

public void setRoleName(String roleName) {

this.roleName = roleName;

}

public String getDsc() {

return dsc;

}

public void setDsc(String dsc) {

this.dsc = dsc;

}

public Set<RoleUser> getRoleUsers() {

return roleUsers;

}

public void setRoleUsers(Set<RoleUser> roleUsers) {

this.roleUsers = roleUsers;

}

public Set<FunctionsRole> getFunctionRoles() {

return functionRoles;

}

public void setFunctionRoles(Set<FunctionsRole> functionRoles) {

this.functionRoles = functionRoles;

}

}

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package com.tudou.hibernates.RoleManage;

import java.util.HashSet;

import java.util.Set;

public class Functions {

private int fid;

private String functionName;

private String mark;

private Set<FunctionsRole> functionRoles = new HashSet<FunctionsRole>();

public Functions(String functionName, String mark,

Set<FunctionsRole> functionRoles) {

super();

this.functionName = functionName;

this.mark = mark;

this.functionRoles = functionRoles;

}

public Functions() {

super();

}

public int getFid() {

return fid;

}

public void setFid(int fid) {

this.fid = fid;

}

public String getFunctionName() {

return functionName;

}

public void setFunctionName(String functionName) {

this.functionName = functionName;

}

public String getMark() {

return mark;

}

public void setMark(String mark) {

this.mark = mark;

}

public Set<FunctionsRole> getFunctionRoles() {

return functionRoles;

}

public void setFunctionRoles(Set<FunctionsRole> functionRoles) {

this.functionRoles = functionRoles;

}

}

用户-角色-权限关系如下：

一个用户user对应多个角色role，一个角色对应多个用户，关系为多对多many-to-many

一个角色role对应多个权限functions,一个权限也对应多个角色。

这个自不必说。

主要是如何维护呢。

如下所示：

多对多必然产生中间表进行关联。

user与role产生中间表userRole。则user与userRole的关系为one-to-many。理解为一个用户可以有多个权限对应。role与userRole的关系为one-to-many。理解为一个权限可以有多个用户对应。

其次就是角色role与权限function，中间表为roleFunction,他们之前的关系如上。

只不过role表在中间，即与user表是多对多的关系，又与function表是多对多的关系。所以role会产生2张中间表，一张userRole，一张roleFunction而已。

role与这2张中间表都是one-to-many的关系，反之，它们与role却都是many-to-one的关系。

user->userRole->role->roleFunction->function

user->userRole一对多,role->userRole一对多,则user->role多对多

role->roleFunction一对多，function->roleFunction一对多，则role->function多对多

说白了就是把2个多对多，分解成了4个一对多【其实就是2对一对多】而已。

这样写来。再看配置，则是一目了然了。

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<?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="com.tudou.hibernates.RoleManage">

<class name="User" table="tb_user">

<id name="uid" column="uid">

<generator class="native" />

</id>

<property name="userName"></property>

<property name="nickName"></property>

<property name="password"></property>

<property name="mark"></property>

<set name="roleUsers" cascade="save-update" inverse="true">

<key>

<column name="uid"></column>

</key>

<one-to-many class="RoleUser" />

</set>

</class>

</hibernate-mapping>

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<?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="com.tudou.hibernates.RoleManage">

<class name="Role" table="tb_role">

<id name="rid" column="rid">

<generator class="native">

</generator>

</id>

<property name="roleName" />

<property name="dsc" />

<set name="roleUsers" cascade="save-update" inverse="true">

<key>

<column name="rid"></column>

</key>

<one-to-many class="RoleUser" />

</set>

<set name="functionRoles" cascade="save-update" inverse="true">

<key>

<column name="rid"></column>

</key>

<one-to-many class="FunctionsRole" />

</set>

</class>

</hibernate-mapping>

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<?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="com.tudou.hibernates.RoleManage">

<class name="RoleUser" table="role_user">

<id name="ru_id" column="ru_id">

<generator class="native" />

</id>

<many-to-one name="role" class="Role" cascade="save-update"

fetch="select">

<column name="rid"></column>

</many-to-one>

<many-to-one name="user" class="User" cascade="save-update"

fetch="select">

<column name="uid"></column>

</many-to-one>

</class>

</hibernate-mapping>

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<?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="com.tudou.hibernates.RoleManage">

<class name="FunctionsRole" table="functions_role">

<id name="fr_id" column="fr_id">

<generator class="native" />

</id>

<many-to-one name="functions" class="Functions" cascade="save-update"

fetch="select">

<column name="fid"></column>

</many-to-one>

<many-to-one name="role" class="Role" cascade="save-update"

fetch="select">

<column name="rid"></column>

</many-to-one>

</class>

</hibernate-mapping>

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package com.tudou.hibernates.RoleManage;

public class RoleUser {

private int ru_id;

private Role role;

private User user;

public RoleUser(Role role, User user) {

super();

this.role = role;

this.user = user;

}

public RoleUser() {

super();

}

public int getRu_id() {

return ru_id;

}

public void setRu_id(int ruId) {

ru_id = ruId;

}

public Role getRole() {

return role;

}

public void setRole(Role role) {

this.role = role;

}

public User getUser() {

return user;

}

public void setUser(User user) {

this.user = user;

}

}

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package com.tudou.hibernates.RoleManage;

public class FunctionsRole {

private int fr_id;

private Functions functions;

private Role role;

public FunctionsRole() {

super();

}

public FunctionsRole(Functions functions, Role role) {

super();

this.functions = functions;

this.role = role;

}

public int getFr_id() {

return fr_id;

}

public void setFr_id(int frId) {

fr_id = frId;

}

public Functions getFunctions() {

return functions;

}

public void setFunctions(Functions functions) {

this.functions = functions;

}

public Role getRole() {

return role;

}

public void setRole(Role role) {

this.role = role;

}

}