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src/main/java/com/example/mini_program/MiniProgramApplication.java

@@ -0,0 +1,11 @@
+package com.example.mini_program;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class MiniProgramApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(MiniProgramApplication.class, args);
+    }
+}

src/main/java/com/example/mini_program/controller/HelloController.java

@@ -0,0 +1,13 @@
+package main.java.com.example.mini_program.controller;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class HelloController {
+
+    @GetMapping("/hello")
+    public String hello() {
+        return "Hello, Spring Boot!";
+    }
+}

src/main/java/com/example/mini_program/controller/demo/Demo3Application.java

@@ -0,0 +1,15 @@
+package main.java.com.example.mini_program.controller.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableAsync;
+
+@SpringBootApplication
+@EnableAsync
+public class Demo3Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Demo3Application.class, args);
+    }
+
+}

src/main/java/com/example/mini_program/controller/demo/mini/AppointmentService.java

@@ -0,0 +1,36 @@
+package main.java.com.example.mini_program.controller.demo.mini;
+
+import com.example.demo.mini.entity.VisitApplication;
+import com.example.demo.mini.mapper.VisitApplicationMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+@Service
+public class AppointmentService {
+
+    private static final Logger logger = LoggerFactory.getLogger(AppointmentService.class);
+
+    private final VisitApplicationMapper visitApplicationMapper;
+
+    public AppointmentService(VisitApplicationMapper visitApplicationMapper) {
+        this.visitApplicationMapper = visitApplicationMapper;
+    }
+
+    /**
+     * 根据openid获取最新的一条预约记录
+     *
+     * @param openid 微信用户openid
+     * @return 最新的一条预约记录，没有则返回null
+     */
+    public VisitApplication getLatest(String openid) {
+        logger.info("查询用户最新预约记录, openid: {}", openid);
+        VisitApplication result = visitApplicationMapper.selectLatestByOpenid(openid);
+        if (result != null) {
+            logger.info("找到预约记录, id: {}", result.getId());
+        } else {
+            logger.info("未找到预约记录");
+        }
+        return result;
+    }
+}

src/main/java/com/example/mini_program/controller/demo/mini/WxLoginController.java

@@ -0,0 +1,109 @@
+package main.java.com.example.mini_program.controller.demo.mini;
+
+import com.example.demo.mini.entity.VisitApplication;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/api/wx-mini")
+public class WxLoginController {
+
+    private final WxLoginService wxLoginService;
+    private final AppointmentService appointmentService;
+
+    public WxLoginController(WxLoginService wxLoginService, AppointmentService appointmentService) {
+        this.wxLoginService = wxLoginService;
+        this.appointmentService = appointmentService;
+    }
+
+    /**
+     * 微信小程序登录接口
+     * 接收wx.login的code，换取openid
+     *
+     * @param code 小程序wx.login获取的code
+     * @return openid等信息
+     */
+    @GetMapping("/login")
+    public Result<WxLoginResult> login(@RequestParam String code) {
+        if (code == null || code.trim().isEmpty()) {
+            return Result.error("code不能为空");
+        }
+
+        WxLoginResult result = wxLoginService.code2Session(code);
+
+        if ("0".equals(result.getErrcode())|| "".equals(result.getErrcode())) {
+            return Result.success(result);
+        } else {
+            return Result.error(result.getErrcode(), result.getErrmsg());
+        }
+    }
+
+    /**
+     * 根据openid获取最新的一条预约记录
+     *
+     * @param openid 微信用户openid
+     * @return 最新的一条预约记录
+     */
+    @GetMapping("/appointment/latest")
+    public Result<VisitApplication> getLatestAppointment(@RequestParam String openid) {
+        if (openid == null || openid.trim().isEmpty()) {
+            return Result.error("openid不能为空");
+        }
+        VisitApplication appointment = appointmentService.getLatest(openid);
+        return Result.success(appointment);
+    }
+
+    /**
+     * 统一返回结果类
+     */
+    public static class Result<T> {
+        private int code;
+        private String message;
+        private T data;
+
+        public static <T> Result<T> success(T data) {
+            Result<T> result = new Result<>();
+            result.setCode(0);
+            result.setMessage("success");
+            result.setData(data);
+            return result;
+        }
+
+        public static <T> Result<T> error(String message) {
+            Result<T> result = new Result<>();
+            result.setCode(-1);
+            result.setMessage(message);
+            return result;
+        }
+
+        public static <T> Result<T> error(String code, String message) {
+            Result<T> result = new Result<>();
+            result.setCode(-1);
+            result.setMessage(code + ": " + message);
+            return result;
+        }
+
+        public int getCode() {
+            return code;
+        }
+
+        public void setCode(int code) {
+            this.code = code;
+        }
+
+        public String getMessage() {
+            return message;
+        }
+
+        public void setMessage(String message) {
+            this.message = message;
+        }
+
+        public T getData() {
+            return data;
+        }
+
+        public void setData(T data) {
+            this.data = data;
+        }
+    }
+}

src/main/java/com/example/mini_program/controller/demo/mini/WxLoginResult.java

@@ -0,0 +1,50 @@
+package main.java.com.example.mini_program.controller.demo.mini;
+
+public class WxLoginResult {
+
+    private String session_key;
+    private String unionid;
+    private String openid;
+    private String errcode;
+    private String errmsg;
+
+    public String getSession_key() {
+        return session_key;
+    }
+
+    public void setSession_key(String session_key) {
+        this.session_key = session_key;
+    }
+
+    public String getUnionid() {
+        return unionid;
+    }
+
+    public void setUnionid(String unionid) {
+        this.unionid = unionid;
+    }
+
+    public String getOpenid() {
+        return openid;
+    }
+
+    public void setOpenid(String openid) {
+        this.openid = openid;
+    }
+
+    public String getErrcode() {
+        return errcode;
+    }
+
+    public void setErrcode(String errcode) {
+        this.errcode = errcode;
+    }
+
+    public String getErrmsg() {
+        return errmsg;
+    }
+
+    public void setErrmsg(String errmsg) {
+        this.errmsg = errmsg;
+    }
+}

src/main/java/com/example/mini_program/controller/demo/mini/WxLoginService.java

@@ -0,0 +1,61 @@
+package main.java.com.example.mini_program.controller.demo.mini;
+
+import org.json.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+@Service
+public class WxLoginService {
+
+    private static final Logger logger = LoggerFactory.getLogger(WxLoginService.class);
+    private static final String JSCODE2SESSION_URL = "https://api.weixin.qq.com/sns/jscode2session?appid=%s&secret=%s&js_code=%s&grant_type=authorization_code";
+
+    private final WxMiniAppConfig wxMiniAppConfig;
+    private final RestTemplate restTemplate;
+
+    public WxLoginService(WxMiniAppConfig wxMiniAppConfig) {
+        this.wxMiniAppConfig = wxMiniAppConfig;
+        this.restTemplate = new RestTemplate();
+    }
+
+    /**
+     * 调用微信接口用code换取openid
+     *
+     * @param code 小程序调用wx.login获取的code
+     * @return 登录结果，包含openid等信息
+     */
+    public WxLoginResult code2Session(String code) {
+        String url = String.format(JSCODE2SESSION_URL,
+                wxMiniAppConfig.getAppid(),
+                wxMiniAppConfig.getSecret(),
+                code);
+
+        logger.info("调用微信jscode2session接口，code: {}", code);
+
+        try {
+            // 微信返回text/plain，手动解析JSON字符串
+            String response = restTemplate.getForObject(url, String.class);
+            logger.info("微信返回原始结果: {}", response);
+
+            JSONObject json = new JSONObject(response);
+            WxLoginResult result = new WxLoginResult();
+            result.setOpenid(json.optString("openid"));
+            result.setSession_key(json.optString("session_key"));
+            result.setUnionid(json.optString("unionid"));
+            result.setErrcode(json.optString("errcode"));
+            result.setErrmsg(json.optString("errmsg"));
+
+            logger.info("解析后结果: openid={}, unionid={}, errcode={}",
+                    result.getOpenid(), result.getUnionid(), result.getErrcode());
+            return result;
+        } catch (Exception e) {
+            logger.error("调用微信接口失败", e);
+            WxLoginResult errorResult = new WxLoginResult();
+            errorResult.setErrcode("-1");
+            errorResult.setErrmsg("系统错误: " + e.getMessage());
+            return errorResult;
+        }
+    }
+}

src/main/java/com/example/mini_program/controller/demo/mini/WxMiniAppConfig.java

@@ -0,0 +1,28 @@
+package main.java.com.example.mini_program.controller.demo.mini;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+@Component
+@ConfigurationProperties(prefix = "wx.miniapp")
+public class WxMiniAppConfig {
+
+    private String appid;
+    private String secret;
+
+    public String getAppid() {
+        return appid;
+    }
+
+    public void setAppid(String appid) {
+        this.appid = appid;
+    }
+
+    public String getSecret() {
+        return secret;
+    }
+
+    public void setSecret(String secret) {
+        this.secret = secret;
+    }
+}

src/main/java/com/example/mini_program/controller/demo/mini/data.sql

@@ -0,0 +1,54 @@
+-- --------------------------------------------------------
+-- 主机:                           txy.588580.xyz
+-- 服务器版本:                        5.7.44 - MySQL Community Server (GPL)
+-- 服务器操作系统:                      Linux
+-- HeidiSQL 版本:                  12.17.0.7270
+-- --------------------------------------------------------
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET NAMES utf8 */;
+/*!50503 SET NAMES utf8mb4 */;
+/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
+/*!40103 SET TIME_ZONE='+00:00' */;
+/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
+/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
+
+
+-- 导出 mini 的数据库结构
+CREATE DATABASE IF NOT EXISTS `mini` /*!40100 DEFAULT CHARACTER SET utf8 */;
+USE `mini`;
+
+-- 导出  表 mini.visit_application 结构
+CREATE TABLE IF NOT EXISTS `visit_application` (
+  `id` varchar(32) NOT NULL COMMENT '主键ID',
+  `name` varchar(50) NOT NULL COMMENT '访客姓名',
+  `phone` varchar(20) NOT NULL COMMENT '联系电话',
+  `company` varchar(100) DEFAULT NULL COMMENT '公司名称',
+  `reason` varchar(500) DEFAULT NULL COMMENT '来访原因',
+  `visit_date` date NOT NULL COMMENT '来访日期',
+  `visit_time` time DEFAULT '00:00:00' COMMENT '来访时间',
+  `host_name` varchar(50) DEFAULT NULL COMMENT '接待人姓名',
+  `area` varchar(50) DEFAULT NULL COMMENT '访问区域',
+  `status` varchar(20) NOT NULL DEFAULT 'pending' COMMENT '状态',
+  `status_text` varchar(50) DEFAULT NULL COMMENT '状态文本描述',
+  `openid` varchar(64) DEFAULT NULL COMMENT '微信用户openid',
+  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
+  PRIMARY KEY (`id`),
+  KEY `idx_status` (`status`),
+  KEY `idx_visit_date` (`visit_date`),
+  KEY `idx_openid` (`openid`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='访问申请记录表';
+
+-- 正在导出表  mini.visit_application 的数据：~4 rows (大约)
+INSERT INTO `visit_application` (`id`, `name`, `phone`, `company`, `reason`, `visit_date`, `visit_time`, `host_name`, `area`, `status`, `status_text`, `openid`, `create_time`) VALUES
+	('16a235b169e3405200194dd91bc3e36f', '吴松', '12311111111', 'hj', 'jkk', '2026-04-18', '00:00:00', 'clj', 'B区-办公楼', 'cancelled', '已取消', 'ogzdF3d3Z494n28mxsUUHvASiePE', '2026-04-18 08:26:58'),
+	('5f19df4769e3444d001856492c09fb78', 'k', '12224446798', 'j', '你说的这个是同步svn上的所有文件，还是某一个文件夹下的文件q', '2026-04-18', '00:00:00', 'lj', 'A区-生产车间', 'pending', '待审核', 'ogzdF3d3Z494n28mxsUUHvASiePE', '2026-04-18 08:43:57'),
+	('6cd8d0ff69e5f0f9004d447951241305', '陈良', '15056476763', '安影', '测试', '2026-04-20', '10:00:00', '虞欢溢', 'A区-生产车间', 'pending', '待审核', 'ogzdF3a-l23Vfpq14b7QEp1VEukg', '2026-04-20 09:25:13'),
+	('8b925adc69e5d944004a593558e0a944', '程利娟', '19805853215', '哈哈科技有限公司', '参观', '2026-04-21', '13:00:00', '生产部长', 'A区-生产车间', 'pending', '待审核', 'ogzdF3Vv42nydiUnY6lEW0ufK4Q0', '2026-04-20 07:44:04');
+
+/*!40103 SET TIME_ZONE=IFNULL(@OLD_TIME_ZONE, 'system') */;
+/*!40101 SET SQL_MODE=IFNULL(@OLD_SQL_MODE, '') */;
+/*!40014 SET FOREIGN_KEY_CHECKS=IFNULL(@OLD_FOREIGN_KEY_CHECKS, 1) */;
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40111 SET SQL_NOTES=IFNULL(@OLD_SQL_NOTES, 1) */;

src/main/java/com/example/mini_program/controller/demo/mini/database_export-3wUktapIrwxg.json

@@ -0,0 +1,4 @@
+{"_id":"16a235b169e3405200194dd91bc3e36f","name":"吴松","phone":"12311111111","company":"hj","reason":"jkk","time":"00:00","hostName":"clj","area":"B区-办公楼","statusText":"已取消","date":"2026-04-18","status":"cancelled","createTime":{"$date":"2026-04-18T08:26:58.102Z"},"_openid":"ogzdF3d3Z494n28mxsUUHvASiePE"}
+{"_id":"5f19df4769e3444d001856492c09fb78","statusText":"待审核","createTime":{"$date":"2026-04-18T08:43:57.985Z"},"_openid":"ogzdF3d3Z494n28mxsUUHvASiePE","phone":"12224446798","company":"j","reason":"你说的这个是同步svn上的所有文件，还是某一个文件夹下的文件q","date":"2026-04-18","time":"00:00","hostName":"lj","status":"pending","name":"k","area":"A区-生产车间"}
+{"_id":"8b925adc69e5d944004a593558e0a944","_openid":"ogzdF3Vv42nydiUnY6lEW0ufK4Q0","name":"程利娟","company":"哈哈科技有限公司","reason":"参观","date":"2026-04-21","hostName":"生产部长","area":"A区-生产车间","status":"pending","createTime":{"$date":"2026-04-20T07:44:04.124Z"},"phone":"19805853215","time":"13:00","statusText":"待审核"}
+{"_id":"6cd8d0ff69e5f0f9004d447951241305","name":"陈良","phone":"15056476763","reason":"测试","hostName":"虞欢溢","statusText":"待审核","createTime":{"$date":"2026-04-20T09:25:13.364Z"},"_openid":"ogzdF3a-l23Vfpq14b7QEp1VEukg","company":"安影","date":"2026-04-20","time":"10:00","area":"A区-生产车间","status":"pending"}

src/main/java/com/example/mini_program/controller/demo/mini/database_export-STEP_NEQozdm.json

@@ -0,0 +1,3 @@
+{"_id":"775c8c1769e34030001852fa5df8d835","_openid":"ogzdF3d3Z494n28mxsUUHvASiePE","avatarUrl":"wxfile://tmp_087ba7d96bc1da49c25cf77a6c2b6a90f03fffddcc59aecf.png","nickName":"i","createTime":{"$date":"2026-04-18T08:26:24.337Z"},"lastLoginTime":{"$date":"2026-04-20T09:47:25.222Z"}}
+{"_id":"5065eed869e341aa0019a9352a21b8e4","_openid":"ogzdF3Vv42nydiUnY6lEW0ufK4Q0","avatarUrl":"http://tmp/q2RwR6L5kT1v2b4bd91956654d901dfa7b6cd59aa006.jpeg","nickName":"23","createTime":{"$date":"2026-04-18T08:32:42.356Z"},"lastLoginTime":{"$date":"2026-04-20T07:42:43.764Z"}}
+{"_id":"775c8c1769e5f0cd00499e73707f0bb9","_openid":"ogzdF3a-l23Vfpq14b7QEp1VEukg","createTime":{"$date":"2026-04-20T09:24:29.069Z"},"lastLoginTime":{"$date":"2026-04-20T09:24:29.069Z"}}

src/main/java/com/example/mini_program/controller/demo/mini/entity/VisitApplication.java

@@ -0,0 +1,122 @@
+package main.java.com.example.mini_program.controller.demo.mini.entity;
+
+public class VisitApplication {
+
+    private String id;
+    private String name;
+    private String phone;
+    private String company;
+    private String reason;
+    private String visitDate;
+    private String visitTime;
+    private String hostName;
+    private String area;
+    private String status;
+    private String statusText;
+    private String openid;
+    private String createTime;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    public String getCompany() {
+        return company;
+    }
+
+    public void setCompany(String company) {
+        this.company = company;
+    }
+
+    public String getReason() {
+        return reason;
+    }
+
+    public void setReason(String reason) {
+        this.reason = reason;
+    }
+
+    public String getVisitDate() {
+        return visitDate;
+    }
+
+    public void setVisitDate(String visitDate) {
+        this.visitDate = visitDate;
+    }
+
+    public String getVisitTime() {
+        return visitTime;
+    }
+
+    public void setVisitTime(String visitTime) {
+        this.visitTime = visitTime;
+    }
+
+    public String getHostName() {
+        return hostName;
+    }
+
+    public void setHostName(String hostName) {
+        this.hostName = hostName;
+    }
+
+    public String getArea() {
+        return area;
+    }
+
+    public void setArea(String area) {
+        this.area = area;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getStatusText() {
+        return statusText;
+    }
+
+    public void setStatusText(String statusText) {
+        this.statusText = statusText;
+    }
+
+    public String getOpenid() {
+        return openid;
+    }
+
+    public void setOpenid(String openid) {
+        this.openid = openid;
+    }
+
+    public String getCreateTime() {
+        return createTime;
+    }
+
+    public void setCreateTime(String createTime) {
+        this.createTime = createTime;
+    }
+}

src/main/java/com/example/mini_program/controller/demo/mini/mapper/VisitApplicationMapper.java

@@ -0,0 +1,17 @@
+package main.java.com.example.mini_program.controller.demo.mini.mapper;
+
+import com.example.demo.mini.entity.VisitApplication;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+@Mapper
+public interface VisitApplicationMapper {
+
+    /**
+     * 根据openid查询最新的一条预约记录
+     *
+     * @param openid 微信用户openid
+     * @return 最新的一条记录，没有则返回null
+     */
+    VisitApplication selectLatestByOpenid(@Param("openid") String openid);
+}