移动端微信第三方平台授权

一、获取二维码链接中的uuid,生成授权二维码

1、通过第三方appid,appsecret，获取第三方平台的access_token。详情看官方文档

2、通过第三方appid,第三方平台的access_token，获取预授权码。详情看官方文档

3、获取uuid

请求地址：https://mp.weixin.qq.com/safe/safeqrconnect

方法：post

参数：action: 'bindcomponent',
state: 0,
component_appid: "第三方平台的appid",
component_pre_auth_code: "预授权码",
component_redirect_uri: "回调地址"

返回：{"uuid":"94af28c5c81042eea43da187517c26","genuuid_res":0}

 //模拟浏览器请求     
ArrayList<NameValuePair> list = new ArrayList<>();        
NameValuePair action = new NameValuePair("action", "bindcomponent");        
NameValuePair state = new NameValuePair("state", "123");        
NameValuePair appid = new NameValuePair("component_appid", component_appid);        
NameValuePair code = new NameValuePair("component_pre_auth_code", preAuthCode);        
NameValuePair redirect = new NameValuePair("component_redirect_uri",component_redirect_uri);        
list.add(action);list.add(state);list.add(appid);list.add(code);list.add(redirect);       
HttpClient client = new HttpClient();
PostMethod postMethod = new PostMethod("https://mp.weixin.qq.com/safe/safeqrconnect");
//不设置请求头Referer，授权确认时会提示refer错误
postMethod.setRequestHeader("Referer", request.getHeader("Referer"));
NameValuePair[] params = new NameValuePair[list.size()];
for (int i = 0; i < list.size(); i++) {
     params[i] = list.get(i);
}
postMethod.addParameters(params);
client.executeMethod(postMethod);
String resultStr = postMethod.getResponseBodyAsString();

将返回的uuid，替换UUID，便可以生成授权二维码

https://mp.weixin.qq.com/safe/safeqrcode?action=bindcomponent&uuid=UUID&auth_type=3

二、查询授权状态

请求地址：https://mp.weixin.qq.com/safe/safeuuid

方法：get

参数：timespam: "当前时间戳",
uuid: "生成二维码的uuid",

返回：{ "errcode":401, "key":"","pass_ticket":"","card_name":"","check_status":0} //未扫码

{ "errcode":402, "key":"","pass_ticket":"","card_name":"","check_status":0}

{ "errcode":404, "key":"","pass_ticket":"","card_name":"","check_status":0} //扫完码，但未确定授权

{ "errcode":500, "key":"","pass_ticket":"","card_name":"","check_status":0} //出现错误（二维码过期等等问题）

{  "errcode":405, //确定授权后
"key":"",
"pass_ticket":"",
  "card_name":"",
"check_status":0,
"confirm_resp":{
"redirect_uri":"http:xxxx.com/callback.api?auth_code=AUTH_CODE&expires_in=3600",
"component_status":0,
"component_pre_auth_code":"授权码",
"component_appid":"第三方平台appid",
"bizuin":"MzI0NjQxNTI2MQ==",
"open_component_uin":0,
"open_mp_appid":"",
"open_mp_uin":0,
"open_biz_mp_mchid":0,
"biz_mp_uin":0,
"biz_mp_appid":"",
"biz_mp_mchid":0
        }

三、回调处理

errorcode 405时，confirm_resp.redirect_uri即回调地址，get请求

1、通过授权码confirm_resp.auth_code，获取第三方平台access_token

2、通过第三方平台access_token，便可以获取到授权方的信息