微信小程序获取获取openid

来源：互联网发布：sql server 2008 sa 编辑：程序博客网时间：2024/05/24 04:33

之前看很多获取openid都是直接在小程序里面获取的
但是现在不能在小程序里面讲获取openid 的地址加为白名单了
所以只能通过前段传来code 后段获取openid了
微信小程序代码

 /**   * 生命周期函数--监听页面加载   * 微信获取openid   */  onLoad: function (options) {    wx.login({      success: function (res) {        var code = res.code;//登录凭证        //console.log(code);        wx.request({          url: 'http://域名',  // 获取openid          data: {                code: code//传递的code数据          }        })      },      fail: function () {        callback(false)      }    });   }

后段java获取openid的代码

/** * Created by hubo on 2017/11/10 * openid数据库的操作指令 */public class AccessOpenId extends HttpServlet{    /**     * 获取用户登陆openid方法     */    private static final String APPID = "";   //小程序的APPID    private static final String APPSECRET = ""; //小程序的appsecret    private static final String OPENID_URL = "https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret" +                                            "=SECRET&js_code=JSCODE&grant_type=authorization_code";//获取openid的地址    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp)            throws ServletException, IOException {        String Code = req.getParameter("code"); //获取前台传入的参数        String url = OPENID_URL.replace("APPID",APPID).replace("SECRET",APPSECRET).replace("JSCODE",Code);        JSONObject jsonObject = WeixinUtil.doGetStr(url);   //调取Get提交方法        String OpenId = jsonObject.getString("openid"); //获取openid            }}

doget方法代码

/**     * get请求     * @param url     * @return     */    public static JSONObject doGetStr(String url){        DefaultHttpClient httpClient = new DefaultHttpClient();        HttpGet httpGet = new HttpGet(url);        JSONObject jsonObject = null;        try {            HttpResponse response = httpClient.execute(httpGet);            HttpEntity entity = response.getEntity();   //接受结果            if(entity != null){                String result = EntityUtils.toString(entity,"UTF-8");                jsonObject = JSONObject.fromObject(result);            }        } catch (IOException e) {            e.printStackTrace();        }        return jsonObject;    }

获取的opneid就是openid然后返回前段就好了

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