[springmvc注解详解]SpringMVC+ZTree实现树形菜单权限配置的方法

更新时间：2024-03-27 来源：js教程手机版 字体：大中小

【www.bbyears.com--js教程】

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://www.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 subMenu;
  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 getSubMenu() {
    return subMenu;
  }

  public void setSubMenu(List subMenu) {
    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 findAll(){
    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 menuList = menuTreeService.findAll();
    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+"/";
%>



  
  
  
  
  Insert title here
  
  <script type="text/javascript" src="${basePath}static/js/jquery-1.8.3.js"></script>
  
  <script type="text/javascript" src="<%=basePath%>plugins/zDialog/zDialog.js"></script>
  <script type="text/javascript" src="<%=basePath%>plugins/zDialog/zDrag.js"></script>
  <script type="text/javascript" src="<%=basePath%>plugins/zDialog/zProgress.js"></script>
  
  <script type="text/javascript" src="<%=basePath%>plugins/zTree/3.5/jquery-1.4.4.min.js"></script>
  <script type="text/javascript" src="<%=basePath%>plugins/zTree/3.5/jquery.ztree.core.js"></script>
  <script type="text/javascript" src="<%=basePath%>plugins/zTree/3.5/jquery.ztree.excheck.js"></script>
  <script type="text/javascript">
    

    function dialogClose()
    {
      parentDialog.close();
    }

    function doSave() {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo");
      var nodes = zTree.getCheckedNodes();
      var tmpNode;
      var ids = "";
      for(var i=0; i