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`
if (StringUtils.isEmpty(value)) {
            return defaultValue;
        }
        int i = Integer.parseInt(value);
        getNumbers().put(methodKey, i);
        return i;
    }
    public short getMethodParameter(String method, String key, short defaultValue) {
        String methodKey = method + "." + key;
        Number n = getNumbers().get(methodKey);
        if (n != null) {
            return n.shortValue();
        }
        String value = getMethodParameter(method, key);
        if (StringUtils.isEmpty(value)) {
            return defaultValue;
        }
        short s = Short.parseShort(value);
        getNumbers().put(methodKey, s);
        return s;
    }
    public byte getMethodParameter(String method, String key, byte defaultValue) {
        String methodKey = method + "." + key;
        Number n = getNumbers().get(methodKey);
        if (n != null) {
            return n.byteValue();
        }
        String value = getMethodParameter(method, key);
        if (StringUtils.isEmpty(value)) {
            return defaultValue;