（学习权限管理经典作品）java权限管理系统，三个项目SpringSecurity + shiro + Filter自实现

package com.ls.service.Impl; import com.google.common.collect.ArrayListMultimap; import com.google.common.collect.Lists; import com.google.common.collect.Multimap; import com.ls.dao.SysAclMapper; import com.ls.dao.SysAclModuleMapper; import com.ls.dao.SysDeptMapper; import com.ls.dto.AclDto; import com.ls.dto.AclModuleLevelDto; import com.ls.dto.DeptLevelDto; import com.ls.model.SysAcl; import com.ls.model.SysAclModule; import com.ls.model.SysDept; import com.ls.service.SysTreeService; import com.ls.service.SysCoreService; import com.ls.util.LevelUtil; import org.apache.commons.collections.CollectionUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import javax.annotation.Resource; import java.util.*; import java.util.stream.Collectors; /** * 〈树逻辑实现类〉 * * @author Administrator * @create 2017/12/4 * @since 1.0.0 */ @Service public class SysTreeServiceImpl implements SysTreeService{ private static Logger log = LoggerFactory.getLogger(SysTreeServiceImpl.class); @Resource private SysDeptMapper sysDeptMapper; @Resource private SysAclModuleMapper sysAclModuleMapper; @Resource private SysCoreService SysCoreService; @Resource private SysAclMapper sysAclMapper; /** * 单位树 * @return */ public List<DeptLevelDto> deptTree(){ //获取所有单位 List<SysDept> deptList = sysDeptMapper.getAllDept(); List<DeptLevelDto> dtoList = Lists.newArrayList(); for (SysDept dept : deptList){ //把dept相同key的value拷贝到dto中 DeptLevelDto dto = DeptLevelDto.adapt(dept); dtoList.add(dto); } return deptLevelDtoListToTree(dtoList); } /** * 把单位List转换成树结构 * @param deptLevelDtoList * @return */ public List<DeptLevelDto> deptLevelDtoListToTree( List<DeptLevelDto> deptLevelDtoList){ if(CollectionUtils.isEmpty(deptLevelDtoList)){ //返回空的List return Lists.newArrayList(); } /** * multimap允许重复元素，map不允许有重复，相当于Map<String, List<Object>> */ //key -> value // level -> [dept1, dept2, dept3, ...] Multimap<String, DeptLevelDto> levelDeptMap = ArrayListMultimap.create(); List<DeptLevelDto> rootList = Lists.newArrayList(); // for(DeptLevelDto dto : deptLevelDtoList){ levelDeptMap.put(dto.getLevel(),dto); if(LevelUtil.ROOT.equals(dto.getLevel())){ //顶级根层级 rootList.add(dto); } } //根层级rootList 按照seq从小到大排序 //Comparator 比较器 Collections.sort(rootList, deptLevelDtoComparator); // Collections.sort(rootList, new Comparator<DeptLevelDto>() { // public int compare(DeptLevelDto o1, DeptLevelDto o2) { // //优先 // return o1.getSeq() - o2.getSeq(); // } // }); log.info("transforDeptTree before:" + rootList.toString()); //递归生成树------所有单位，根层级，Multimap --对deptLevelDtoList进行排序 transforDeptTree(deptLevelDtoList, LevelUtil.ROOT, levelDeptMap); log.info("transforDeptTree after:" + rootList.toString()); return rootList; } //单位递归排序生成树 public void transforDeptTree( List<DeptLevelDto> deptLevelDtoList, String level, Multimap<String, DeptLevelDto> levelDeptMap){ log.info("Multimap : "+ levelDeptMap.toString()); for (int i = 0; i < deptLevelDtoList.size(); i++) { //遍历该层级的每个元素 DeptLevelDto deptLevelDto = deptLevelDtoList.get(i); //处理当前层级的数据 String nextLevel = LevelUtil.calculateLevel(level,deptLevelDto.getId()); //处理下一层 List<DeptLevelDto> tempdeptLevelDtoList = (List<DeptLevelDto>) levelDeptMap.get(nextLevel); if(CollectionUtils.isNotEmpty(tempdeptLevelDtoList)){ //排序 Collections.sort(tempdeptLevelDtoList, deptLevelDtoComparator); //设置下一个单位 deptLevelDto.setDeptList(tempdeptLevelDtoList); //进入到下一层处理 transforDeptTree(tempdeptLevelDtoList,nextLevel,levelDeptMap); } } } /** * DeptLevelDto比较器 */ public Comparator<DeptLevelDto> deptLevelDtoComparator = new Comparator<DeptLevelDto>() { public int compare(DeptLevelDto o1, DeptLevelDto o2) { return o1.getSeq() - o2.getSeq(); } }; /** * 权限模块 * @param dtoList * @return */ public List<AclModuleLevelDto> aclModuleListToTree(List<AclModuleLevelDto> dtoList) { if (CollectionUtils.isEmpty(dtoList)) { return Lists.newArrayList(); } // level -> [aclmodule1, aclmodule2, ...] Map<String, List<Object>> Multimap<String, AclModuleLevelDto> levelAclModuleMap = ArrayListMultimap.create(); List<AclModuleLevelDto> rootList = Lists.newArrayList(); for (AclModuleLevelDto dto : dtoList) { levelAclModuleMap.put(dto.getLevel(), dto); if (LevelUtil.ROOT.equals(dto.getLevel())) { rootList.add(dto); } } Collections.sort(rootList, aclModuleSeqComparator); transformAclModuleTree(rootList, LevelUtil.ROOT, levelAclModuleMap); return rootList; } /** * 权限模块排序 * @param dtoList * @param level * @param levelAclModuleMap */ public void transformAclModuleTree(List<AclModuleLevelDto> dtoList, String level, Multimap<String, AclModuleLevelDto> levelAclModuleMap) { for (int i = 0; i < dtoList.size(); i++) { AclModuleLevelDto dto = dtoList.get(i); String nextLevel = LevelUtil.calculateLevel(level, dto.getId()); List<AclModuleLevelDto> tempList = (List<AclModuleLevelDto>) levelAclModuleMap.get(nextLevel); if (CollectionUtils.isNotEmpty(tempList)) { Collections.sort(tempList, aclModuleSeqComparator); dto.setAclModuleList(tempList); transformAclModuleTree(tempList, nextLevel, levelAclModuleMap); } } } /** * 权限模块比较器 */ public Comparator<AclModuleLevelDto> aclModuleSeqComparator = new Comparator<AclModuleLevelDto>() { public int compare(AclModuleLevelDto o1, AclModuleLevelDto o2) { return o1.getSeq() - o2.getSeq(); } }; /** * * @return */ public List<AclModuleLevelDto> aclModuleTree() { List<SysAclModule> aclModuleList = sysAclModuleMapper.getAllAclModule(); List<AclModuleLevelDto> dtoList = Lists.newArrayList(); for (SysAclModule aclModule : aclModuleList) { dtoList.add(AclModuleLevelDto.adapt(aclModule)); } return aclModuleListToTree(dtoList); } /** * 权限点 * @return */ public List<AclModuleLevelDto> roleTree(int roleId) { // 1、当前用户已分配的权限点 List<SysAcl> userAclList = SysCoreService.getCurrentUserAclList(); // 2、当前角色分配的权限点 List<SysAcl> roleAclList = SysCoreService.getRoleAclList(roleId); // 3、当前系统所有权限点 List<AclDto> aclDtoList = Lists.newArrayList(); //jdk1.8 Set<Integer> userAclIdSet = user