一次性订阅消息无法显示内容 - WXOPEN Club

按照文档向用户发送一次性订阅消息，代码片段如下

String accessToken = getAccessToken();

String uri = "https://api.weixin.qq.com/cgi-bin/message/template/subscribe?access_token=" + accessToken;

BasicDBObject content = new BasicDBObject();

content.append("value", "test test \n test test");

content.append("color", "#1B5E20");

BasicDBObject testData = new BasicDBObject();

testData.append("content", content);

BasicDBObject postData = new BasicDBObject();

postData.append("touser", toUser)

.append("template_id", template_id)

.append("url", url)

.append("scene", scene)

.append("title", title)

.append("data", testData);

logger.info(postData.toJson());

String resp = postRequestJson(uri, postData.toJson());

系统log如下:

21-Sep-2018 19:17:29.955 INFO [http-nio-443-exec-48] helper.WeixinAppHelper.subscribeMsg { "touser" : "oKn3lvkut8w-H0oM2c-3Rhsqx70o", "template_id" : "k5dLFam6GtlfptCMkbR02eqIeO22oNqn8SaL1bSSuc4", "url" : "https://mp.weixin.qq.com/mp/profile_ext?action=home&__biz=MzUxNDAzMzQ0MA==&scene=1", "scene" : "1", "title" : "?????????????", "data" : { "content" : { "value" : "test test \n test test", "color" : "#1B5E20" } } }

结果在微信里显示的一次性订阅消息并未出现消息内容，哪里出问题了？谢谢