前端：

onLoad: function (options) {

var scene = JSON.stringify(decodeURIComponent(options))

console.log('我是options: ' + scene)

console.log(options.scene)

},

后端

params.put("scene", "c=" + cardOpenId);
params.put("width", 430);
HttpPost request = new HttpPost(postUrl.trim());
request.setHeader("Content-Type", "application/json");
request.setEntity(new ByteArrayEntity(JSON.toJSON(params).toString().getBytes()));
HttpClient httpClient = HttpClients.createDefault();
HttpResponse httpResponse = httpClient.execute(request);