@Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result
                 + ((this.getOriginUrl() == null) ? 0 : this.getOriginUrl().hashCode());
        return result;
    }
Get property value according to property key

@param key property key
@return property value
src/main/java/com/alipay/remoting/Url.java