请求openid，始终返回40163
发布于 5 年前 作者 qinjuan 19655 次浏览 来自 问答

这个app.js的部分内容

App({
 onLaunch: function () {
   //调用API从本地缓存中获取数据
   var logs = wx.getStorageSync('logs') || []
   logs.unshift(Date.now())
   wx.setStorageSync('logs', logs);
   this.loginFunction();
 },
 loginFunction:function(){
   wx.checkSession({
     // success: function () {
     //   console.log("checksession success")
     //   //session 未过期，并且在本生命周期一直有效
     // },
     success: function () {
       wx.login({
         success: function (res) {
           if (res.code) {
             //发起网络请求
             wx.request({
               url: "https://myyxa17.hk1.mofasuidao.cn/ServletTest/HelloWorldServlet",
               data:{
                 code:res.code
               },
               success: function (res) {
                 console.log(res);
               },
               fail: function (res) {
                 console.log(res);
               }
             })
           } else {
             console.log('获取用户登录态失败！' + res.errMsg)
           }
         }
       })
     }
   })
 }}

这个是servlet内容

[@WebServlet](/user/WebServlet)("/HelloWorldServlet")
public class HelloWorldServlet extends HttpServlet {
   private static final long serialVersionUID = 1L;
     
   /**
    * [@see](/user/see) HttpServlet#HttpServlet()
    */
   public HelloWorldServlet() {
       super();
       // TODO Auto-generated constructor stub
   }
   /**
    * [@see](/user/see) HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
    */
   protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
       // TODO Auto-generated method stub
       String code="";
       code=request.getParameter("code");
       System.out.println(code);
       String url = "https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET"
               + "&grant_type=authorization_code&js_code="+code;
       String wxUserInfoJsonStr = HttpClientUtil.getInstance().sendHttpsGet(url);
       response.getWriter().append("Served at: ").append(wxUserInfoJsonStr);
   }
   /**
    * [@see](/user/see) HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
    */
   protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
       // TODO Auto-generated method stub
       doGet(request, response);
   }
}

直接在后台打断点，第一次请求就直接返回40163，求解，看别人都是5分钟之内重复使用code才会返回40163，我这个怎么始终返回40163呢，应该怎么修改

5 回复

必须使用POST请求才能够成功。

public static String sendHttpsPost(String url, Map<String, String> params) throws IOException, GeneralSecurityException {

String responseContent = null;

HttpPost httpPost = new HttpPost(url);

List<NameValuePair> nvps = new ArrayList<>();

for (Map.Entry<String, String> entry : params.entrySet()) {

nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));

}

httpPost.setEntity(new UrlEncodedFormEntity(nvps, Constant.UTF_8));

CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(createSSLConnSocketFactory()).setDefaultRequestConfig(requestConfig).build();

CloseableHttpResponse httpResponse = httpClient.execute(httpPost);

HttpEntity httpEntity = httpResponse.getEntity();

if (httpEntity != null) {

responseContent = EntityUtils.toString(httpEntity, Constant.UTF_8);

}

return responseContent;

}

private static SSLConnectionSocketFactory createSSLConnSocketFactory() throws GeneralSecurityException {

SSLConnectionSocketFactory sslsf = null;

SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {

public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {

return true;

}

}).build();

sslsf = new SSLConnectionSocketFactory(sslContext);

return sslsf;

}

如何解决的

String urlPath = new String(“https://api.weixin.qq.com/sns/jscode2session”); // 微信提供的API，这里最好也放在配置文件

Map<String, String> params = new HashMap<>();

params.put(“appid”, appId);

params.put(“secret”, secret);

params.put(“js_code”, code);

params.put(“grant_type”, “authorization_code”); // 固定值

params.put(“r”, “”); // 随机值

String data = HttpClientTest.sendHttpsPost(urlPath, params); // java的网络请求，这里是我自己封装的一个工具包，返回字符串

换了下发送GET请求的方式就行了，

大哥你都没说一下怎么解决

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