UserController { @GetMapping("deleteUserById") public String deleteUserById(int id) throws Exception { String sql = "DELETE FROM user WHERE ID = ?"; int rows = jdbcTemplate.update(sql, id); return "执行成功，影响" + rows + "行"; }  @GetMapping("createUserTable") String createUserTable(); @GetMapping("saveUserTest") String saveUserTest(); @GetMapping("batchSave") String batchSaveUser(); @GetMapping("add") String addUser(String userName, String passWord); @GetMapping("updateUserPassword") String updateUserPassword(int id, String passWord); @GetMapping("deleteUserById") String deleteUserById(int id); @GetMapping("getUserByName") List getUserByName(String userName); @GetMapping("getMapById") Map getMapById(Integer id); @GetMapping("getUserById") User getUserById(Integer id); @GetMapping("list") List<User> list();  }
@Test public void deleteUserById() throws Exception{ String sql="DELETE FROM user_jdbct WHERE ID = ?"; int rows = jdbcTemplate.update(sql, 1); System.out.println(rows); }