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package com.demo.service.impl;
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import com.demo.dao.RoleMapper;
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import com.demo.dao.UserRoleMapper;
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import com.demo.pojo.*;
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import com.demo.service.RoleService;
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import com.demo.service.UserService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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@Service
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public class RoleServiceImpl implements RoleService {
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@Autowired
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RoleMapper roleMapper;
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@Autowired
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UserRoleMapper userRoleMapper;
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@Autowired
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UserService userService;
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@Override //name的所有角色
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public Set<String> listRoleNames(String userName) {
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Set<String> result = new HashSet<>();
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//查出管理员相应的角色
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List<Role> roles = listRoles(userName);
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//把每个角色名放到set集合中
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for (Role role : roles) {
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result.add(role.getName());
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}
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return result;
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}
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@Override //查出管理员相应的角色
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public List<Role> listRoles(String userName) {
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List<Role> roles = new ArrayList<>();
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//通过name获得user实体
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User user = userService.getByName(userName);
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if(null==user)
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return roles;
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roles = listRoles(user);//调用下面的方法
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return roles;
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}
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@Override //查出管理员相应的角色
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public List<Role> listRoles(User user) {
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List<Role> roles = new ArrayList<>();
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//通过管理员id获取管理员的角色
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UserRoleExample example = new UserRoleExample();
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example.createCriteria().andUidEqualTo(user.getId());
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List<UserRole> userRoles = userRoleMapper.selectByExample(example);//关联查询 查出用户id对应的角色id的记录
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//通过关联查询 ，查出表Role的给出指定主键id的记录
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for (UserRole userRole : userRoles){
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Role role = roleMapper.selectByPrimaryKey(userRole.getRid());
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roles.add(role);
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}
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return roles;
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}
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@Override
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public List<Role> list() {
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RoleExample example =new RoleExample();
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example.setOrderByClause("id desc");
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return roleMapper.selectByExample(example);
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}
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@Override
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public void add(Role role) {
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roleMapper.insert(role);
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}
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@Override
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public void delete(Long id) {
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roleMapper.deleteByPrimaryKey(id);
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}
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@Override
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public Role get(Long id) {
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return roleMapper.selectByPrimaryKey(id);
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}
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@Override
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public void update(Role role) {
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roleMapper.updateByPrimaryKeySelective(role);
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}
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}
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