代码已测，已通。关注WX公众号，回复 手机号 ，直接给java代码，还有更多的技术类干货等你哦~

token写到url后面，code用json

此接口需要付费使用吗？我每次使用需要验证码可是没能获取到验证码，是不是购买短信接口啥的

package servlet;

import com.alibaba.fastjson.JSON;
import net.sf.json.JSONObject;
import org.apache.http.Consts;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.HttpClientUtils;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.SocketTimeoutException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class WXPhoneServlet2 extends HttpServlet {

    String js_code;
    PrintWriter out;

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        response.setCharacterEncoding("UTF-8");
        request.setCharacterEncoding("UTF-8");
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        response.setCharacterEncoding("UTF-8");
        request.setCharacterEncoding("UTF-8");
        js_code = request.getParameter("code");
        out = response.getWriter();

        String url = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=yourtooken";
        Map<String, String> map = new HashMap<>(1);
        map.put("code", js_code);
        String res = WXPhoneServlet2.postJson(url, JSON.toJSONString(map), null);
        out.write("" + res);

    }

    public static String postJson(String url, String json, Map<String, String> headMap) {
        String returnStr;
        CloseableHttpClient httpClient = null;
        CloseableHttpResponse httpResponse = null;
        try {
            HttpPost post = new HttpPost(url);
            post.setConfig(RequestConfig.custom().setSocketTimeout(10000).setConnectTimeout(10000).build());
            httpClient = HttpClientBuilder.create().build();
            StringEntity s = new StringEntity(json, Consts.UTF_8);
            s.setContentType("application/json");
            if (headMap != null && headMap.size() > 0) {
                Set<String> keySet = headMap.keySet();
                for (String key : keySet) {
                    post.addHeader(key, headMap.get(key));
                }
            }
            post.setEntity(s);
            httpResponse = httpClient.execute(post);
            BufferedReader reader = new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent(),
                    StandardCharsets.UTF_8.name()));
            StringBuilder stringBuffer = new StringBuilder(100);
            String str;
            while ((str = reader.readLine()) != null) {
                stringBuffer.append(str);
            }
            returnStr = stringBuffer.toString();

            reader.close();
            return returnStr;
        } catch (SocketTimeoutException e) {
            return "";
        } catch (ConnectTimeoutException e) {
            return "";
        } catch (Exception e) {

            return "";
        } finally {
            HttpClientUtils.closeQuietly(httpResponse);
            HttpClientUtils.closeQuietly(httpClient);
        }
    }
}

headers = {
    "Accept": "application/json",
    'Content-type': "application/json"
}
data = {
    "code": code
}

print(token, code)
response2 = requests.post('https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=' + token,
                          headers=headers,
                          data=data)
print(response2.text)
return ("hello word")

{"errcode":47001,"errmsg":"data format error hint: [ygdBJHnre-OoZ0Ca] rid: 624e7b64-5434b888-1ee593f6"}

postman body 用raw那个选中json格式并且加上请求头就可以了