微信公众号开发之授权获取用户信息

//跳转到授权页面
  public void toOauth(){
    String calbackUrl=PropKit.get("domain")+"/oauth";
    String url=SnsAccessTokenApi.getAuthorizeURL(PropKit.get("appId"), calbackUrl, "111",false);
    redirect(url);
  }

{ 
 "access_token":"ACCESS_TOKEN",    
 "expires_in":7200,    
 "refresh_token":"REFRESH_TOKEN",    
 "openid":"OPENID",    
 "scope":"SCOPE" 
} 

{    
 "openid":" OPENID",  
 " nickname": NICKNAME,   
 "sex":"1",   
 "province":"PROVINCE"   
 "city":"CITY",   
 "country":"COUNTRY",    
 "headimgurl":    "http://wx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ
4eMsv84eavHiaiceqxibJxCfHe/46",  
"privilege":[ "PRIVILEGE1" "PRIVILEGE2"     ],    
 "unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL" 
} 

public class WeiXinOauthController extends ApiController{
  static Log log = Log.getLog(WeiXinOauthController.class);
  /**
   * 如果要支持多公众账号，只需要在此返回各个公众号对应的  ApiConfig 对象即可
   * 可以通过在请求 url 中挂参数来动态从数据库中获取 ApiConfig 属性值
   */
  public ApiConfig getApiConfig() {
    ApiConfig ac = new ApiConfig();
    
    // 配置微信 API 相关常量
    ac.setToken(PropKit.get("token"));
    ac.setAppId(PropKit.get("appId"));
    ac.setAppSecret(PropKit.get("appSecret"));
    
    /**
     *  是否对消息进行加密，对应于微信平台的消息加解密方式：
     *  1：true进行加密且必须配置 encodingAesKey
     *  2：false采用明文模式，同时也支持混合模式
     */
    ac.setEncryptMessage(PropKit.getBoolean("encryptMessage", false));
    ac.setEncodingAesKey(PropKit.get("encodingAesKey", "setting it in config file"));
    return ac;
  }
  
  public void index() {
    int  subscribe=0;
    //用户同意授权，获取code
    String code=getPara("code");
    String state=getPara("state");
    if (code!=null) {
      String appId=ApiConfigKit.getApiConfig().getAppId();
      String secret=ApiConfigKit.getApiConfig().getAppSecret();
      //通过code换取网页授权access_token
      SnsAccessToken snsAccessToken=SnsAccessTokenApi.getSnsAccessToken(appId,secret,code);
//      String json=snsAccessToken.getJson();
      String token=snsAccessToken.getAccessToken();
      String openId=snsAccessToken.getOpenid();
      //拉取用户信息(需scope为 snsapi_userinfo)
      ApiResult apiResult=SnsApi.getUserInfo(token, openId);
      
      log.warn("getUserInfo:"+apiResult.getJson());
      if (apiResult.isSucceed()) {
        JSONObject jsonObject=JSON.parseObject(apiResult.getJson());
        String nickName=jsonObject.getString("nickname");
        //用户的性别，值为1时是男性，值为2时是女性，值为0时是未知
        int sex=jsonObject.getIntValue("sex");
        String city=jsonObject.getString("city");//城市
        String province=jsonObject.getString("province");//省份
        String country=jsonObject.getString("country");//国家
        String headimgurl=jsonObject.getString("headimgurl");
        String unionid=jsonObject.getString("unionid");
        //获取用户信息判断是否关注
        ApiResult userInfo = UserApi.getUserInfo(openId);
        log.warn(JsonKit.toJson("is subsribe>>"+userInfo));
        if (userInfo.isSucceed()) {
          String userStr = userInfo.toString();
          subscribe=JSON.parseObject(userStr).getIntValue("subscribe");
        }
        
        Users.me.save(openId, WeiXinUtils.filterWeixinEmoji(nickName), unionid, headimgurl, country, city, province, sex);
      }
      
      setSessionAttr("openId", openId);
      if (subscribe==0) {
        redirect(PropKit.get("subscribe_rul"));
      }else {
        //根据state 跳转到不同的页面
        if (state.equals("2222")) {
          redirect("http://www.cnblogs.com/zyw-205520/");
        }else {
          redirect("/login");
        }
      }
    }else {
      renderText("code is  null");
    }
  }
}