技術標籤：醫院預約系統mysqlredisjavaspring boot

使用者登入無非就是通過賬號獲取密碼所以
mapper

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.kgc.mapper.PatientMapper"
 
>
    <select id="selectPatientByName" parameterType="String" resultType="Patient">
        select * from patient where username = #{username}
    </select>
</mapper>

Service

@Service
public class PatientServiceImpl implements PatientService {
    @Autowired
 

    private PatientMapper patientMapper;

    @Override
    public Patient getByUsername(String username) {
        return patientMapper.selectPatientByName(username);
    }
}

@Controller
public class PatientController {
    @Autowired
    private PatientService patientService;

    @RequestMapping
 
("login")
    @ResponseBody
    public Map<String, Object> patientLogin(String username, String password, HttpSession session) {
        Map<String, Object> result = new HashMap<>();

        Patient patient = patientService.getByUsername(username);
		//登陸成功
        if (patient != null && patient.getPassword().equals(password)) {
            result.put("success", true);

            session.setAttribute("user", patient);//session傳使用者，方便獲取
        }
        else {
            result.put("success", false);
            result.put("message", "使用者名稱或密碼錯誤");
        }

        return result;
    }

頁面
模態框登入按鈕出發onclick事件

	function userLogin() {
				$.ajax({
					url: '/login',
					type: 'post',
					data: $("#login-form").serialize(),
					dataType: "json",
					success: function (data) {
						if (data.success) {
							var content = '<button type="button" οnclick="window.open(\'my_booking\')" ' +
									'class="btn btn-sm btn-outline-primary">我的預約</button>';  //登入按鈕修改成我的預約
							$("#login-button").html(content);
							$("#loginModal").modal("hide");   // 登入後關閉模態框
						}
						else {
							alert(data.message);
						}
					},
					error: function(error){    //失敗後回撥
						alert("伺服器連線失敗");
					}
				});
			}

	<#if user??>//如果user存在
                <button type="button" onclick="window.open('/booking/my_booking')" class="btn btn-sm btn-outline-primary">我的預約</button>
			<#else>
				<button type="button" class="btn btn-sm btn-outline-primary" data-toggle="modal" data-target="#loginModal">
                    登入系統
                </button>
			</#if>

繫結事件 按鈕一定設定成buttun

登入前

登入後