Gets the remote HTML insert into the local Web page (Java+react implementation) __html

Requirements: HTML generated through the editor is uploaded to the Aliyun server, but the HTML needs to be embedded in another Web page. Environment Front-End: React backend: Java Java code

@RequestMapping (value = "/gethtml", method = Requestmethod.post)
@UnNeedAdminId
@Unauthorize
Public Object gethtml (@RequestBody map<string, string> uri) throws Exception {
    url url = new URL (uri.get ("URL"));
    URLConnection urlconnection = Url.openconnection ();
    HttpURLConnection httpconnection = (httpurlconnection) urlconnection;
    int responsecode = Httpconnection.getresponsecode ();
    String str = "";
    if (Responsecode = = HTTPURLCONNECTION.HTTP_OK) {
        InputStream in = Httpconnection.getinputstream ();
        InputStreamReader ISR = new InputStreamReader (in);
        BufferedReader bufr = new BufferedReader (ISR);
        String Lstr;
        while ((Lstr = Bufr.readline ())!= null) {
            str = str + lstr;
        }
        Bufr.close ();
    } else {
        str = "no content";
    }
    return str;
}

React Code

Export default class Phomelog extends React.component {static defaultprops = {};
    Constructor (props) {super (props);
    This.state = {sitecontent: ""}} Componentwillmount () {Let id = this.props.id;
    Let URL = ' http://xxxxxxx/${id}/xxx.html ';
      Fetch ({host: "XXX", url: ' api/gethtml ', body: {URL}, method: "POST",}). Then (RES) =>{ This.setstate ({siteContent:res.data})})} Createmarkup = (html) => {return {__HTML:HT
  ML};
    };
    Replaces the characters that are escaped in the returned HTML escapechars= (str) => {str = str.replace (/&/g, ' & ');
    str = str.replace (/&lt;/g, ' < ');
    str = str.replace (/&gt;/g, ' > ');
    str = str.replace (/&acute;/g, ' \ ');
    str = str.replace (/&quot;/g, ' "");
    str = str.replace (/&brvbar;/g, ' \\| ');
    str = str.replace (/& #x27;/g, ' \ ');
  return str;
    } render () {let {sitecontent} = this.state; Sitecontent = This.escapecHARs (sitecontent) return (<div> {sitecontent?) <div dangerouslysetinnerhtml={this.createmarkup (sitecontent)}></div>: <div className= "Pusht"
  ; ......</div>} </div>); }
}