Getting blank values in spfx using React

Question

Hi Team,

I have followed a youtube vedio (part 2 as well) to get sp list items in to SPFX webpart, which is working fine, in the same way i have tried to get SP Site contens (Get SP lists) list, which is getting blank values.

Here is the webpart.TS file 

public render(): void {
    const element: React.ReactElement<IGetSpListsProps> = React.createElement(
      GetSpLists,
      {
        description: this.properties.description,
        websiteUrl: this.context.pageContext.web.absoluteUrl //here i am getting the site URL which is working fine
      }
    );

    ReactDom.render(element, this.domElement);
  }

After that Framework Interface file 

export interface IGetSpListsProps {
  description: string;
  websiteUrl: string; //React FrameWork interface file initialized for Site URL
}

Now TSX file from Component

export interface IGetSpListsState{
  sitecontents: [{"Lists":""}]
}

export default class GetSpLists extends React.Component<IGetSpListsProps, IGetSpListsState> {
    static siteurl:string =""; //static member variable
    public constructor (props :IGetSpListsProps, state:IGetSpListsState ){
     super(props);
     this.state={sitecontents: [{"Lists":""}]};
      GetSpLists.siteurl=this.props.websiteUrl;
    }
    
    public componentDidMount() {
      let reactcontexthandiler= this;
      jquery.ajax({
        url: `${GetSpLists.siteurl}/_api/web/lists?select=Title&$filter=Hidden eq true`,
        type:"GET",
         headers:{'Accept': 'application/json;odata=verbose;'},
         success : function (resultData){
          reactcontexthandiler.setState({sitecontents: resultData.d.results});
         },
         error: function (jqXHR, textStatus, errorthrown){
          }
        });
    }
    
    public render(): React.ReactElement<IGetSpListsProps> {
      return (
      <div>
        <ol>
        {
          this.state.sitecontents.map(function(mylists,mylistitemkey){
            return(
              <li>
              <span>{mylists.Lists}</span>
              </li>);
              })
        }
      </ol>
      </div>
      
    );
  }
}

Every thing is fine but i am getting blank values from SP. please check the below screen shot for output that i am getting.

Please assist me what is the issue and why its not displaying.