项目中Service层的写法

Posted 2020-07-29 godlei

截取自项目中的一个service实现类，记录一下：

base类

 1 package com.bupt.auth.service.base;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import com.bupt.auth.dao.OauthClientDao;
 6 import com.bupt.auth.dao.PermissionDao;
 7 import com.bupt.auth.dao.ResourceDao;
 8 import com.bupt.auth.dao.RoleDao;
 9 import com.bupt.auth.dao.TokenDao;
10 import com.bupt.auth.dao.UserDao;
11 
12 public class BaseManagerImpl 
13 {
14     @Resource
15     protected UserDao userDao;
16     @Resource
17     protected RoleDao roleDao;
18     @Resource
19     protected ResourceDao resourceDao;
20     @Resource
21     protected PermissionDao permissionDao;
22     @Resource
23     protected TokenDao tokenDao;
24     @Resource(name="oauthDao")
25     protected OauthClientDao clientDao;
26     
27     public BaseManagerImpl(){}
28     
29 }

具体业务的实现类：

  1 package com.bupt.auth.service.impl;
  2 
  3 import java.util.HashSet;
  4 import java.util.List;
  5 import java.util.Set;
  6 import java.util.SortedSet;
  7 import java.util.TreeSet;
  8 
  9 import org.springframework.stereotype.Service;
 10 
 11 import com.bupt.auth.dao.RoleDao;
 12 import com.bupt.auth.entity.Permission;
 13 import com.bupt.auth.entity.Resource;
 14 import com.bupt.auth.entity.Role;
 15 import com.bupt.auth.entity.User;
 16 import com.bupt.auth.exception.MyException;
 17 import com.bupt.auth.service.RoleManager;
 18 import com.bupt.auth.service.base.BaseManagerImpl;
 19 @Service("roleManager")
 20 public class RoleManagerImpl extends BaseManagerImpl implements RoleManager 
 21 {
 22     
 23 
 24 
 25 
 26     @Override
 27     public Role findRoleAdminByUserId(Long id) {
 28         // TODO Auto-generated method stub
 29         Role role = roleDao.findRoleAdminByUserId(id);
 30         role = roleDao.loadRoleByRoleId(role.getId());
 31         
 32         return role;
 33     }
 34 
 35     @Override
 36     public void update(Role role) {
 37         // TODO Auto-generated method stub
 38         roleDao.update(role);
 39     }
 40 
 41     @Override
 42     public boolean addRole(Role role) throws MyException {
 43         // TODO Auto-generated method stub
 44         if(roleDao.findRoleByRoleNameAndUserId(role.getOwnerUser().getId(), role.getName()) != null){
 45             throw new MyException("This role has already exist!!", "300");
 46         }
 47         try{
 48             roleDao.save(role);
 49         }catch(Exception e){
 50             return false;
 51         }
 52         return true;
 53     }
 54 
 55     @Override
 56     public List<Role> findRoleByUserId(Long id) {
 57         // TODO Auto-generated method stub
 58         return roleDao.findRoleByUserId(id);
 59     }
 60 
 61     @Override
 62     public boolean deleteRole(Long id) {
 63         // TODO Auto-generated method stub
 64         try{
 65             roleDao.delete(id);
 66         }catch(Exception e){
 67             return false;
 68         }
 69         return true;
 70     }
 71 
 72     @Override
 73     public Role getById(Long id) {
 74         // TODO Auto-generated method stub
 75         return roleDao.loadRoleByRoleId(id);
 76     }
 77 
 78     @Override
 79     public Role findRoleByRoleNameAndUserId(Long id, String rolename) {
 80         // TODO Auto-generated method stub
 81         return roleDao.findRoleByRoleNameAndUserId(id, rolename);
 82     }
 83 
 84     
 85     @Override
 86     public SortedSet<Long> findRoleByVePeId(Set<String> vpId, int veorpe) 
 87     {
 88         Set<User> user = getUserFromVPId(vpId, veorpe);
 89         return getRoleFromUser(user);
 90         
 91     }
 92     
 93     private SortedSet<Long> getRoleFromUser(Set<User> user) 
 94     {
 95         SortedSet<Long> result = new TreeSet<Long>();
 96         for (User u : user)
 97         {
 98             //该用户的所有角色
 99             List<Role> role = roleDao.findRoleByUserId(u.getId());
100             //将角色对应的ID放到result中
101             for (Role r : role)//如果角色没有设置规则，那么将id的负值放到result中
102             {
103                 if (!r.getName().equals("administrator"))
104                     result.add(r.getConstraintRole().equals("public") ? -r.getId() : r.getId());
105             }
106         }
107         
108         return result;
109     }
110 
111     private Set<User> getUserFromVPId(Set<String> vpId, int veorpe)
112     {
113         Set<User> user = new HashSet<User>();
114         for (String id : vpId)
115         {
116             Resource resource = resourceDao.findResourceByResId(id, veorpe);
117             user.add(resource.getUser());
118         }
119         return user;
120     }
121 
122     @Override
123     public List<Role> findRoleByPermId(Long id) {
124         // TODO Auto-generated method stub
125         return roleDao.findRoleByPermId(id);
126     }
127 
128     @Override
129     public boolean deleteRolesPermissionByRoleIdAndPermId(Role role,
130             Long permid) throws MyException {
131         // TODO Auto-generated method stub
132         return roleDao.deleteRolesPermissionByRoleIdAndPermId(role, permid);
133     }
134 
135     @Override
136     public boolean updateRole(Role role, Set<Long> old,
137             Set<Long> addperm) throws MyException {
138         // TODO Auto-generated method stub
139         //Role role = this.getById(roleid);
140         
141         if(old != null && old.size() != 0){
142             for(Long permid : old){
143                 this.deleteRolesPermissionByRoleIdAndPermId(role, permid);
144             }
145         }
146         
147         if(addperm != null && addperm.size() != 0){
148             for(Long permid : addperm){
149                 Permission perm = permissionDao.getById(permid);
150                 Set<Permission> permset = role.getPermissions();
151                 permset.add(perm);
152                 this.update(role);
153             }
154         }
155         
156         return true;
157     }
158 
159     @Override
160     public Role generateRole(String rolename, String description,
161             Set<Long> permissions, User user) {
162         // TODO Auto-generated method stub
163         try{
164             Role role = new Role();
165             
166             role.setName(rolename);
167             role.setConstraintRole("public");
168             role.setDescription(description);
169             role.setOwnerUser(user);
170             
171             Set<String> accessTokens = new HashSet<String>();
172             accessTokens.add(user.getAccesstoken());
173             role.setAccessTokens(accessTokens);
174             
175             roleDao.save(role);
176             Role adminrole = roleDao.findRoleAdminByUserId(user.getId());
177             Set<Permission> totalPerm = adminrole.getPermissions();
178             
179             if(totalPerm == null || totalPerm.size() == 0)
180                 return null;
181             
182             Set<Permission> set = new HashSet<Permission>();
183             for(Long perm_id : permissions){
184                 Permission perm = permissionDao.loadPermissionById(perm_id);
185                 if(perm != null && totalPerm.contains(perm)){
186                     set.add(perm);
187                 }
188             }
189             
190             role.setPermissions(set);
191             roleDao.update(role);
192             return role;
193         }catch(Exception e){
194             return null;
195         }
196     }
197 
198     @Override
199     public boolean updateRole(Long id, Set<Long> permissions) throws MyException {
200         // TODO Auto-generated method stub
201         Set<Long> old = new HashSet<Long>();
202         Role role = roleDao.loadRoleByRoleId(id);
203         
204         if(role == null){
205             throw new MyException("Role Not Found", "301");
206         }
207         
208         Set<Permission> pset = role.getPermissions();
209         if(pset != null && pset.size() != 0){
210             for(Permission perm:pset){
211                 old.add(perm.getId());
212             }
213             updateRole(role, old, null);
214         }
215         
216         Role adminrole = roleDao.findRoleAdminByUserId(role.getOwnerUser().getId());
217         Set<Permission> totalPerm = adminrole.getPermissions();
218         if(totalPerm == null || totalPerm.size() == 0){
219             return false;
220         }
221         
222         for(Long perm_id:permissions){
223             if(permissionDao.getById(perm_id) == null){
224                 permissions.remove(perm_id);
225             }
226         }
227         
228         if(permissions != null && permissions.size() != 0)
229             updateRole(role, null, permissions);
230         
231         return true;
232     }
233 }