- [x] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [x] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: 3.0.3

### Steps to reproduce this issue

1. 启动 provider `-Ddubbo.application.register-mode=instance`
2. 启动 consumer `dubbo.application.service-discovery.migration=FORCE_APPLICATION`
3. 使用 `dubbo admin` 创建 mesh 路由
4. `org.apache.dubbo.registry.client.InstanceAddressURL#getParameters` 不能获取真正的 url 参数，导致路由规则匹配失败
![image](https://user-images.githubusercontent.com/43994656/134940925-96081a6c-500c-4b71-89cc-bbd22d0be296.png)
5. 原因在于 `getProtocolServiceKey()` 方法是从`RpcContext`中获取，此时获取的`protocolServiceKey` 为 null，导致获取的为 instance 参数，实际需要获取对应服务的参数。
```
    public Map<String, String> getParameters() {
        String protocolServiceKey = getProtocolServiceKey();
        if (StringUtils.isEmpty(protocolServiceKey)) {
            return getInstance().getAllParams();
        }
        return getServiceParameters(protocolServiceKey);
    }
```
```
    public String getProtocolServiceKey() {
        return RpcContext.getServiceContext().getProtocolServiceKey();
    }
```

String serviceName = invocation.getServiceName();
        VirtualServiceSpec spec = virtualServiceRule.getSpec();
        List<DubboRoute> dubboRouteList = spec.getDubbo();
        if (dubboRouteList.size() > 0) {
            for (DubboRoute dubboRoute : dubboRouteList) {
                List<StringMatch> stringMatchList = dubboRoute.getServices();
                if (CollectionUtils.isEmpty(stringMatchList)) {
                    return dubboRoute;
                }
                for (StringMatch stringMatch : stringMatchList) {
                    if (StringMatch.isMatch(stringMatch, serviceName)) {
                        return dubboRoute;
                    }
                }
            }
        }
        return null;
    }
    protected List<DubboRouteDestination> getDubboRouteDestination(DubboRoute dubboRoute, Invocation invocation) {
        List<DubboRouteDetail> dubboRouteDetailList = dubboRoute.getRoutedetail();
        if (dubboRouteDetailList.size() > 0) {
            DubboRouteDetail dubboRouteDetail = findMatchDubboRouteDetail(dubboRouteDetailList, invocation);
            if (dubboRouteDetail != null) {
                return dubboRouteDetail.getRoute();
            }
        }
        return null;
    }
    protected DubboRouteDetail findMatchDubboRouteDetail(List<DubboRouteDetail> dubboRouteDetailList, Invocation invocation) {
        String methodName = invocation.getMethodName();