小程序增加一个button，在js中增加一个方法
<button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber">{{phone}}</button> getPhoneNumber (e) { console.log(e.detail.code) // 动态令牌 var that = this; wx.request({ url: 'http://localhost:8080/wx/login', //仅为示例，并非真实的接口地址 data: { code: e.detail.code }, header: { 'content-type': 'application/json' // 默认值 }, success (res) { console.log(res.data); that.setData({ 'motto':res.data }) } }) }在Springboot写一个工具类
package com.example.demo.utils; import cn.hutool.core.map.MapUtil; import cn.hutool.http.HttpUtil; import cn.hutool.json.JSONObject; import cn.hutool.json.JSONUtil; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; import java.util.Map; @Component public class WxUtils { public static String APPID; public static String APPSECRET; @Value("${wx.appid}") public void initAppid(String s){ APPID = s; } @Value("${wx.appsecret}") public void initAppsecret(String s){ APPSECRET = s; } public static String getAccessToken(){ String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET"; url = url.replace("APPID", APPID).replace("APPSECRET", APPSECRET); JSONObject jsonObject = JSONUtil.parseObj(HttpUtil.get(url)); return jsonObject.getStr("access_token"); } public static String getOpenId(String code){ String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code"; url = url.replace("APPID", APPID); url = url.replace("SECRET", APPSECRET); url = url.replace("CODE", code); JSONObject jsonObject = JSONUtil.parseObj(HttpUtil.get(url)); return jsonObject.getStr("openid"); } public static String getPhone(String code) { String url = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=ACCESS_TOKEN"; url = url.replace("ACCESS_TOKEN", getAccessToken()); Map<String, Object> param = MapUtil.newHashMap(); param.put("code", code); JSONObject jsonObject = JSONUtil.parseObj(HttpUtil.post(url, JSONUtil.toJsonStr(param))); return jsonObject.getJSONObject("phone_info").getStr("phoneNumber"); } }写一个测试类
package com.example.demo.controller; import com.example.demo.utils.WxUtils; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("/wx") public class WxController { public String index(){ return "index"; } @GetMapping("/login") public String login(String code) { return WxUtils.getPhone(code); } }点击login，弹出确认对话框
允许后向后台发送请求，返回电话号码
2025-12-18T22:09:33.360+08:00 INFO 18656 --- [demo1] [nio-8080-exec-2] c.e.demo.intercepter.GlobalInterceptor : 请求地址：http://localhost:8080/wx/login
成功！
