如果未在数据库中缓存，则从远程服务获取数据 - 需要建议

In one of my current applications, I need to get customer data from a remote service (CRM) via Webservice / SOAP. But I also want to cache the data in the mysql database, so that I dont need to connect to the webservice for the next time (data does not change often, remote service is slow and has bandwidth limit - so caching is OK / a must). In one of my current applications, I need to ge