SpringMVC+ZTree实现树形菜单权限配置的方法

SpringMVC+ZTree实现树形菜单权限配置的方法

计划在开源项目里加入权限配置的功能，打算加入zTree实现树形结构。

Team的github开源项目链接：https://github.com/u014427391/jeeplatform欢迎star(收藏)

zTree 是一个依靠 jquery 实现的多功能 “树插件”。优异的性能、灵活的配置、多种功能的组合是 zTree 最大优点。

zTree下载链接：http://treejs.cn/v3/main.php#_zTreeInfo

角色信息实体类：

package org.muses.jeeplatform.core.entity.admin;

import javax.persistence.*;

import java.io.Serializable;

import java.util.HashSet;

import java.util.Set;

/**

* @description 角色信息实体类

* @author Nicky

* @date 2017年3月16日

*/

@Table(name="sys_role")

@Entity

public class Role implements Serializable{

/** 角色Id**/

private int roleId;

/** 角色描述**/

private String roleDesc;

/** 角色名称**/

private String roleName;

/** 角色标志**/

private String role;

private Set permissions = new HashSet();

@Id

@GeneratedValue(strategy=GenerationType.IDENTITY)

public int getRoleId() {

return roleId;

}

public void setRoleId(int roleId) {

this.roleId = roleId;

}

@Column(length=100)

public String getRoleDesc() {

return roleDesc;

}

public void setRoleDesc(String roleDesc) {

this.roleDesc = roleDesc;

}

@Column(length=100)

public String getRoleName() {

return roleName;

}

public void setRoleName(String roleName) {

this.roleName = roleName;

}

@Column(length=100)

public String getRole() {

return role;

}

public void setRole(String role) {

this.role = role;

}

//修改cascade策略为级联关系

@OneToMany(targetEntity=Permission.class,cascade=CascadeType.MERGE,fetch=FetchType.EAGER)

@JoinTable(name="sys_role_permission", joinColumns=@JoinColumn(name="roleId",referencedColumnName="roleId"), inverseJoinColumns=@JoinColumn(name="permissionId",referencedColumnName="id",unique=true))

public Set getPermissions() {

return permissions;

}

public void setPermissions(Set permissions) {

this.permissions = permissions;

}

@Override

public boolean equals(Object obj) {

if (obj instanceof Role) {

Role role = (Role) obj;

return this.roleId==(role.getRoleId())

&& this.roleName.equals(role.getRoleName())

&& this.roleDesc.equals(role.getRoleDesc())

&& this.role.equals(role.getRole());

}

return super.equals(obj);

}

}

权限信息实体类：

package org.muses.jeeplatform.core.entity.admin;

import java.io.Serializable;

import java.util.HashSet;

import java.util.Set;

import javax.persistence.CascadeType;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.FetchType;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.JoinColumn;

import javax.persistence.JoinTable;

import javax.persistence.ManyToMany;

import javax.persistence.OneToOne;

import javax.persistence.Table;

/**

* @description 权限操作的Vo类

* @author Nicky

* @date 2017年3月6日

*/

@Table(name="sys_permission")

@Entity

public class Permission implements Serializable {

private int id;

private String pdesc;

private String name;

private static final long serialVersionUID = 1L;

private Menu menu;

private Set operations = new HashSet();

public Permission() {

super();

}

@GeneratedValue(strategy = GenerationType.IDENTITY)

@Id

public int getId() {

return this.id;

}

public void setId(int id) {

this.id = id;

}

@Column(length=100)

public String getPdesc() {

return this.pdesc;

}

public void setPdesc(String pdesc) {

this.pdesc = pdesc;

}

@Column(length=100)

public String getName() {

return this.name;

}

public void setName(String name) {

this.name = name;

}

@OneToOne(targetEntity=Menu.class,cascade=CascadeType.REFRESH,fetch=FetchType.EAGER)

@JoinColumn(name="menuId",referencedColumnName="menuId")

public Menu getMenu() {

return menu;

}

public void setMenu(Menu menu) {

this.menu = menu;

}

@ManyToMany(targetEntity=Operation.class,cascade=CascadeType.MERGE,fetch=FetchType.EAGER)

@JoinTable(name="sys_permission_operation",joinColumns=@JoinColumn(name="permissionId",referencedColumnName="id"),inverseJoinColumns=@JoinColumn(name="operationId",referencedColumnName="id"))

public Set getOperations() {

return operations;

}

public void setOperations(Set operations) {

this.operations = operations;

}

}

实现菜单信息实体类，用JPA来实现

package org.muses.jeeplatform.core.entity.admin;

import javax.persistence.*;

import java.io.Serializable;

import java.util.List;

/**

* @description 菜单信息实体

* @author Nicky

* @date 2017年3月17日

*/

@Table(name="sys_menu")

@Entity

public class Menu implements Serializable {

/** 菜单Id**/

private int menuId;

/** 上级Id**/

private int parentId;

/** 菜单名称**/

private String menuName;

/** 菜单图标**/

private String menuIcon;

/** 菜单URL**/

private String menuUrl;

/** 菜单类型**/

private String menuType;

/** 菜单排序**/

private String menuOrder;

/**菜单状态**/

private String menuStatus;

private List

private String target;

private boolean hasSubMenu = false;

public Menu() {

super();

}

@Id

@GeneratedValue(strategy=GenerationType.IDENTITY)

public int getMenuId() {

return this.menuId;

}

public void setMenuId(int menuId) {

this.menuId = menuId;

}

@Column(length=100)

public int getParentId() {

return parentId;

}

public void setParentId(int parentId) {

this.parentId = parentId;

}

@Column(length=100)

public String getMenuName() {

return this.menuName;

}

public void setMenuName(String menuName) {

this.menuName = menuName;

}

@Column(length=30)

public String getMenuIcon() {

return this.menuIcon;

}

public void setMenuIcon(String menuIcon) {

this.menuIcon = menuIcon;

}

@Column(length=100)

public String getMenuUrl() {

return this.menuUrl;

}

public void setMenuUrl(String menuUrl) {

this.menuUrl = menuUrl;

}

@Column(length=100)

public String getMenuType() {

return this.menuType;

}

public void setMenuType(String menuType) {

this.menuType = menuType;

}

@Column(length=10)

public String getMenuOrder() {

return menuOrder;

}

public void setMenuOrder(String menuOrder) {

this.menuOrder = menuOrder;

}

@Column(length=10)

public String getMenuStatus(){

return menuStatus;

}

public void setMenuStatus(String menuStatus){

this.menuStatus = menuStatus;

}

@Transient

public List

return subMenu;

}

public void setSubMenu(List

this.subMenu = subMenu;

}

public void setTarget(String target){

this.target = target;

}

@Transient

public String getTarget(){

return target;

}

public void setHasSubMenu(boolean hasSubMenu){

this.hasSubMenu = hasSubMenu;

}

@Transient

public boolean getHasSubMenu(){

return hasSubMenu;

}

}

实现JpaRepository接口

package org.muses.jeeplatform.core.dao.repository.admin;

import org.muses.jeeplatform.core.entity.admin.Role;

import org.springframework.data.jpa.repository.JpaRepository;

/**

* Created by Nicky on 2017/12/2.

*/

public interface RoleRepository extends JpaRepository {

}

实现JpaRepository接口

package org.muses.jeeplatform.core.dao.repository.admin;

import org.muses.jeeplatform.core.entity.admin.Menu;

import org.springframework.data.jpa.repository.JpaRepository;

/**

* Created by Nicky on 2017/6/17.

*/

public interface MenuTreeRepository extends JpaRepository

}

角色Service类：

package org.muses.jeeplatform.service;

import com.google.common.collect.Lists;

import org.muses.jeeplatform.core.dao.repository.admin.RolePageRepository;

import org.muses.jeeplatform.core.entity.admin.Role;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.domain.Page;

import org.springframework.data.domain.PageRequest;

import org.springframework.data.domain.Sort;

import org.springframework.stereotype.Service;

import java.util.List;

/**

* Created by Nicky on 2017/7/30.

*/

@Service

public class RolePageService {

@Autowired

RolePageRepository roleRepository;

/**

* 构建PageRequest对象

* @param num

* @param size

* @param asc

* @param string

* @return

*/

private PageRequest buildPageRequest(int num, int size, Sort.Direction asc,

String string) {

return new PageRequest(num-1, size,null,string);

}

/**

* 获取所有的菜单信息并分页显示

* @param pageNo

* 当前页面数

* @param pageSize

* 每一页面的页数

* @return

*/

public Page findAll(int pageNo, int pageSize, Sort.Direction dir, String str){

PageRequest pageRequest = buildPageRequest(pageNo, pageSize, dir, str);

Page roles = roleRepository.findAll(pageRequest);

return roles;

}

public List findAllRole(){

Iterable roles = roleRepository.findAll();

List myList = Lists.newArrayList(roles);

return myList;

}

/**

* 根据角色id查找角色信息

* @param roleId

* @return

*/

public Role findByRoleId(String roleId){

return roleRepository.findOne(Integer.parseInt(roleId));

}

/**

* 保存角色信息

* @param role

*/

public void doSave(Role role){

roleRepository.save(role);

}

}

菜单Service类：

package org.muses.jeeplatform.service;

import org.muses.jeeplatform.annotation.RedisCache;

import org.muses.jeeplatform.common.RedisCacheNamespace;

import org.muses.jeeplatform.core.dao.repository.admin.MenuTreeRepository;

import org.muses.jeeplatform.core.entity.admin.Menu;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**

* Created by Nicky on 2017/6/17.

*/

@Service

public class MenuTreeService {

@Autowired

MenuTreeRepository menuTreeRepository;

/**

* 查询所有的菜单

* @return

*/

@Transactional

//@RedisCache

public List

return menuTreeRepository.findAll();

}

}

在Controller类里通过角色id获取该角色可以查看的菜单：

/**

* 跳转到角色授权页面

* @param roleId

* @param model

* @return

*/

@RequestMapping(value = "/goAuthorise" )

public String goAuth(@RequestParam String roleId, Model model){

List

Role role = roleService.findByRoleId(roleId);

Set hasPermissions = null;

if(role != null){

hasPermissions = role.getPermissions();

}

for (Menu m : menuList) {

for(Permission p : hasPermissions){

if(p.getMenu().getMenuId()==m.getMenuId()){

m.setHasSubMenu(true);

}

}

}

model.addAttribute("roleId" , roleId);

JSONArray jsonArray = JSONArray.fromObject(menuList);

String json = jsonArray.toString();

json = json.replaceAll("menuId","id").replaceAll("parentId","pId").

replaceAll("menuName","name").replaceAll("hasSubMenu","checked");

model.addAttribute("menus",json);

return "admin/role/role_auth";

}

在前端通过zTree实现树形菜单展示，通过勾选然后实现角色授权：

<%@ page contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

Team的Github开源项目链接：https://github.com/u014427391/jeeplatform

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