一、创建权限管理服务
1、在service模块下创建子模块service-acl
2、在service_acl模块中引入依赖
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<dependencies>
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<dependency>
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<groupId>com.atguigu</groupId>
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<artifactId>spring_security</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</dependency>
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<dependency>
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<groupId>com.alibaba</groupId>
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<artifactId>fastjson</artifactId>
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</dependency>
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</dependencies>
3、创建权限管理相关的表
4、复制权限管理接口代码
5、复制整合Spring Security代码
（1）在common模块下创建子模块spring_security
6、编写application.properties配置文件
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# 服务端口
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server.port=8009
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# 服务名
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spring.application.name=service-acl
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# mysql数据库连接
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spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
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spring.datasource.url=jdbc:mysql://localhost:3306/guli?serverTimezone=GMT%2B8
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spring.datasource.username=root
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spring.datasource.password=root
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#返回json的全局时间格式
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spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
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spring.jackson.time-zone=GMT+8
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spring.redis.host=192.168.44.132
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spring.redis.port=6379
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spring.redis.database= 0
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spring.redis.timeout=1800000
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spring.redis.lettuce.pool.max-active=20
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spring.redis.lettuce.pool.max-wait=-1
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#最大阻塞等待时间(负数表示没限制)
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spring.redis.lettuce.pool.max-idle=5
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spring.redis.lettuce.pool.min-idle=0
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#最小空闲
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#配置mapper xml文件的路径
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mybatis-plus.mapper-locations=classpath:com/atguigu/aclservice/mapper/xml/*.xml
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#指定注册中心地址
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eureka.client.service-url.defaultZone=http://127.0.0.1:8761/eureka/
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#eureka服务器上获取的是服务器的ip地址，否则是主机名
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eureka.instance.prefer-ip-address=true
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#mybatis日志
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mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
二、开发权限管理接口
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获取所有菜单
（1）controller
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("/admin/acl/permission")
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public class PermissionController {
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private PermissionService permissionService;
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//获取全部菜单
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public R indexAllPermission() {
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List<Permission> list = permissionService.queryAllMenu();
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return R.ok().data("children",list);
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}
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}
（2）service
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//获取全部菜单
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public List<Permission> queryAllMenu() {
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QueryWrapper<Permission> wrapper = new QueryWrapper<>();
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wrapper.orderByDesc("id");
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List<Permission> permissionList = baseMapper.selectList(wrapper);
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List<Permission> result = bulid(permissionList);
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return result;
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}
（3）在Permission实体类添加属性
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(value = "层级")
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(exist = false)
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private Integer level;
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(value = "下级")
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(exist = false)
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private List<Permission> children;
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(value = "是否选中")
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(exist = false)
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private boolean isSelect;
（4）编写工具类，根据菜单构建数据
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public class PermissionHelper {
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/**
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* 使用递归方法建菜单
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* @param treeNodes
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* @return
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*/
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public static List<Permission> bulid(List<Permission> treeNodes) {
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List<Permission> trees = new ArrayList<>();
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for (Permission treeNode : treeNodes) {
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if ("0".equals(treeNode.getPid())) {
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treeNode.setLevel(1);
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trees.add(findChildren(treeNode,treeNodes));
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}
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}
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return trees;
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}
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/**
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* 递归查找子节点
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* @param treeNodes
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* @return
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*/
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public static Permission findChildren(Permission treeNode,List<Permission> treeNodes) {
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treeNode.setChildren(new ArrayList<Permission>());
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for (Permission it : treeNodes) {
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if(treeNode.getId().equals(it.getPid())) {
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int level = treeNode.getLevel() + 1;
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it.setLevel(level);
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if (treeNode.getChildren() == null) {
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treeNode.setChildren(new ArrayList<>());
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}
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treeNode.getChildren().add(findChildren(it,treeNodes));
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}
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}
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return treeNode;
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}
2、递归删除菜单
（1）controller
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(value = "递归删除菜单")
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("remove/{id}")
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public R remove( String id) {
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permissionService.removeChildById(id);
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return R.ok();
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}
（2）service
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//递归删除菜单
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public void removeChildById(String id) {
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List<String> idList = new ArrayList<>();
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this.selectChildListById(id, idList);
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//把根据节点id放到list中
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idList.add(id);
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baseMapper.deleteBatchIds(idList);
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}
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/**
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*递归获取子节点
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* @param id
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* @param idList
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*/
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private void selectChildListById(String id, List<String> idList) {
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List<Permission> childList = baseMapper.selectList(new QueryWrapper<Permission>().eq("pid", id).select("id"));
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childList.stream().forEach(item -> {
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idList.add(item.getId());
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this.selectChildListById(item.getId(), idList);
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});
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}
3、给角色分配权限
（1）controller
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(value = "给角色分配权限")
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("/doAssign")
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public R doAssign(String roleId,String[] permissionId) {
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permissionService.saveRolePermissionRealtionShip(roleId,permissionId);
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return R.ok();
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}
（2）service
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//给角色分配权限
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public void saveRolePermissionRealtionShip(String roleId, String[] permissionIds) {
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rolePermissionService.remove(new QueryWrapper<RolePermission>().eq("role_id", roleId));
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List<RolePermission> rolePermissionList = new ArrayList<>();
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for(String permissionId : permissionIds) {
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if(StringUtils.isEmpty(permissionId)) continue;
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RolePermission rolePermission = new RolePermission();
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rolePermission.setRoleId(roleId);
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rolePermission.setPermissionId(permissionId);
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rolePermissionList.add(rolePermission);
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}
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rolePermissionService.saveBatch(rolePermissionList);
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}