微信根據openId查詢微信使用者資訊，這個功能需要認證服務号

import net.sf.json.JSONArray;

import net.sf.json.JSONObject;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpException;

import org.apache.commons.httpclient.methods.GetMethod;

import org.apache.commons.httpclient.methods.PostMethod;

public static JSONObject getWechatUserInfo(String openId,String taken){

String url = WechatAppConfig.wechat_tx_url+"/cgi-bin/user/info?access_token="+taken+"&openid="+openId;

HttpClient client = new HttpClient();

GetMethod get = new GetMethod(url);

       try {

       client.executeMethod(get);

       String returnJson=get.getResponseBodyAsString();

       returnJson = new String(returnJson.getBytes("ISO8859_1"),"UTF-8");

       JSONObject result = JSONObject.fromObject(returnJson);

       if(result.containsKey("nickname"))

       return new JsonResult(true).putObject(result).getResult();

       else

       return new JsonResult(false,result.optString("errcode")+":"+result.optString("errmsg")).getResult();

       }

       catch (Exception e) {

       return new JsonResult(false,e.getMessage()).getResult();

       }

return token;

}