SpringCloud Config的实现

Environment result = getRemoteEnvironment(restTemplate,
                        properties, label.trim(), state);

response = restTemplate.exchange(uri + path, HttpMethod.GET,
                    entity, Environment.class, args);

http://config-server-host:port/{application}/{proflie}

@RequestMapping("/{name}/{profiles}/{label:.*}")
public Environment labelled(@PathVariable String name, @PathVariable String profiles,
            @PathVariable String label) {
    Environment environment = this.repository.findOne(name, profiles, label);
    return environment;
}

@Override
public synchronized Locations getLocations(String application, String profile,
    String label) {
    if (label == null) {
        label = this.defaultLabel;
    }
    String version = refresh(label);
    return new Locations(application, profile, label, version,
            getSearchLocations(getWorkingDirectory(), application, profile, label));
}

1. 初始化临时仓库文件夹
2. fetch
3. checkout
4. merge