1. non-simplify mode:
```
dubbo://120.0.0.1:20880/org.apache.dubbo.demo.DemoService?key=value
```
the store path of ZK will be: `/dubbo/porg.apache.dubbo.demo.DemoService/url`

2. simplify mode:
```
dubbo://120.0.0.1:20880/org.apache.dubbo.demo.DemoService?key=value
```
the store path of ZK will be: `/dubbo/porg.apache.dubbo.demo.DemoService/url`

3. simplify mode with path specified:
```
dubbo://120.0.0.1:20880/path-value?key=value
```
the store path of ZK will be: `/dubbo/path-value/url`
public void setProviderIds(String providerIds) {
        this.providerIds = providerIds;
    }
    public String getGeneric() {
        return generic;
    }
    public void setGeneric(String generic) {
        if (StringUtils.isEmpty(generic)) {
            return;
        }
        if (ProtocolUtils.isGeneric(generic)) {
            this.generic = generic;
        } else {
            throw new IllegalArgumentException("Unsupported generic type " + generic);
        }
    }
    @Override
    public void setMock(Boolean mock) {
        throw new IllegalArgumentException("mock doesn't support on provider side");
    }
    @Override
    public void setMock(String mock) {
        throw new IllegalArgumentException("mock doesn't support on provider side");
    }
    public List<URL> getExportedUrls() {
        return urls;
    }
    /**
     * @deprecated Replace to getProtocols()
     */