基于Java的大学生校园在线教育服务平台微服务设计源码

package com.lxb.aclservice.service.impl; import com.alibaba.fastjson.JSONObject; import com.lxb.aclservice.entity.Permission; import com.lxb.aclservice.entity.RolePermission; import com.lxb.aclservice.entity.User; import com.lxb.aclservice.helper.MemuHelper; import com.lxb.aclservice.helper.PermissionHelper; import com.lxb.aclservice.mapper.PermissionMapper; import com.lxb.aclservice.service.PermissionService; import com.lxb.aclservice.service.RolePermissionService; import com.lxb.aclservice.service.UserService; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.util.StringUtils; import java.util.ArrayList; import java.util.List; /** * <p> * 权限 服务实现类 * </p> * * @author testjava * @since 2020-01-12 */ @Service public class PermissionServiceImpl extends ServiceImpl<PermissionMapper, Permission> implements PermissionService { @Autowired private RolePermissionService rolePermissionService; @Autowired private UserService userService; //获取全部菜单 @Override public List<Permission> queryAllMenu() { QueryWrapper<Permission> wrapper = new QueryWrapper<>(); wrapper.orderByDesc("id"); List<Permission> permissionList = baseMapper.selectList(wrapper); List<Permission> result = bulid(permissionList); return result; } //根据角色获取菜单 @Override public List<Permission> selectAllMenu(String roleId) { List<Permission> allPermissionList = baseMapper.selectList(new QueryWrapper<Permission>().orderByAsc("CAST(id AS SIGNED)")); //根据角色id获取角色权限 List<RolePermission> rolePermissionList = rolePermissionService.list(new QueryWrapper<RolePermission>().eq("role_id",roleId)); //转换给角色id与角色权限对应Map对象 // List<String> permissionIdList = rolePermissionList.stream().map(e -> e.getPermissionId()).collect(Collectors.toList()); // allPermissionList.forEach(permission -> { // if(permissionIdList.contains(permission.getId())) { // permission.setSelect(true); // } else { // permission.setSelect(false); // } // }); for (int i = 0; i < allPermissionList.size(); i++) { Permission permission = allPermissionList.get(i); for (int m = 0; m < rolePermissionList.size(); m++) { RolePermission rolePermission = rolePermissionList.get(m); if(rolePermission.getPermissionId().equals(permission.getId())) { permission.setSelect(true); } } } List<Permission> permissionList = bulid(allPermissionList); return permissionList; } //给角色分配权限 @Override public void saveRolePermissionRealtionShip(String roleId, String[] permissionIds) { rolePermissionService.remove(new QueryWrapper<RolePermission>().eq("role_id", roleId)); List<RolePermission> rolePermissionList = new ArrayList<>(); for(String permissionId : permissionIds) { if(StringUtils.isEmpty(permissionId)) continue; RolePermission rolePermission = new RolePermission(); rolePermission.setRoleId(roleId); rolePermission.setPermissionId(permissionId); rolePermissionList.add(rolePermission); } rolePermissionService.saveBatch(rolePermissionList); } //递归删除菜单 @Override public void removeChildById(String id) { List<String> idList = new ArrayList<>(); this.selectChildListById(id, idList); idList.add(id); baseMapper.deleteBatchIds(idList); } //根据用户id获取用户菜单 @Override public List<String> selectPermissionValueByUserId(String id) { List<String> selectPermissionValueList = null; if(this.isSysAdmin(id)) { //如果是系统管理员，获取所有权限 selectPermissionValueList = baseMapper.selectAllPermissionValue(); } else { selectPermissionValueList = baseMapper.selectPermissionValueByUserId(id); } return selectPermissionValueList; } @Override public List<JSONObject> selectPermissionByUserId(String userId) { List<Permission> selectPermissionList = null; if(this.isSysAdmin(userId)) { //如果是超级管理员，获取所有菜单 selectPermissionList = baseMapper.selectList(null); } else { selectPermissionList = baseMapper.selectPermissionByUserId(userId); } List<Permission> permissionList = PermissionHelper.bulid(selectPermissionList); List<JSONObject> result = MemuHelper.bulid(permissionList); return result; } /** * 判断用户是否系统管理员 * @param userId * @return */ private boolean isSysAdmin(String userId) { User user = userService.getById(userId); if(null != user && "admin".equals(user.getUsername())) { return true; } return false; } /** * 递归获取子节点 * @param id * @param idList */ private void selectChildListById(String id, List<String> idList) { List<Permission> childList = baseMapper.selectList(new QueryWrapper<Permission>().eq("pid", id).select("id")); childList.stream().forEach(item -> { idList.add(item.getId()); this.selectChildListById(item.getId(), idList); }); } /** * 使用递归方法建菜单 * @param treeNodes * @return */ private static List<Permission> bulid(List<Permission> treeNodes) { List<Permission> trees = new ArrayList<>(); for (Permission treeNode : treeNodes) { if ("0".equals(treeNode.getPid())) { treeNode.setLevel(1); trees.add(findChildren(treeNode,treeNodes)); } } return trees; } /** * 递归查找子节点 * @param treeNodes * @return */ private static Permission findChildren(Permission treeNode,List<Permission> treeNodes) { treeNode.setChildren(new ArrayList<Permission>()); for (Permission it : treeNodes) { if(treeNode.getId().equals(it.getPid())) { int level = treeNode.getLevel() + 1; it.setLevel(level); if (treeNode.getChildren() == null) { treeNode.setChildren(new ArrayList<>()); } treeNode.getChildren().add(findChildren(it,treeNodes)); } } return treeNode; } //========================递归查询所有菜单================================================ //获取全部菜单 @Override public List<Permission> queryAllMenuGuli() { //1 查询菜单表所有数据 QueryWrapper<Permission> wrapper = new QueryWrapper<>(); wrapper.orderByDesc("id"); List<Permission> permissionList = baseMapper.selectList(wrapper); //2 把查询所有菜单list集合按照要求进行封装 List<Permission> resultList = bulidPermission(permissionList); return resultList; } //把返回所有菜单list集合进行封装的方法 public static List<Permission> bulidPermission(List<Permission> permissionList) { //创建list集合，用于数据最终封装 List<Permission> finalNode = new ArrayList<>(); //把所有菜单list集合遍历，得到顶层菜单 pid=0菜单，设置level是1 for(Permission permissionNode : permissionList) { //得到顶层菜单 pid=0菜单 if