@Test
 public void testAdd() throws Exception {
   int preSize = userMapper.selectAll().size();
   User user = new User();
   user.setName("ysjian003");
   user.setPassword(new BCryptPasswordEncoder().encode("000"));
   user.setSex(User.Sex.MALE);
   userMapper.insert(user);
   assertEquals(preSize + 1, userMapper.selectAll().size());
 }
 @Override
 public void add(User user) throws SQLException {
   user.setPassword(new BCryptPasswordEncoder().encode(user.getPassword()));
   userMapper.insert(user);
 }