Problems using jsoup to parse HTML Table

Question

Few days before I asked a question to parse HTML Table with JSOUP. @luksch helped me and I could solve my problem. My problem was how to parse one part of HTML file with many TR and TD to select an especific text in them (Group Block TABLE).

HTML CODE:


 
  


Xymon

Current Status


Thu Jul 23 16:05:06 2015



 
 




 


 
 
bbd 

bbgen 

bbtest 

conn 

cpu 

disk 

files 

hobbitd 

http 

info 

memory 

msgs 

ports 

procs 

trends 
 



 
hostname1 

















 
hostname2 
-
-

-
-
-
-


-
-
-
-

First part (TABLE Group Block with bbd, bbdgen, bbtest, etc) I fixed with:

ArrayList groupBlock = new ArrayList();
Object[] objPlace;
Element table = document.select("TABLE").get(1); //select the second table:     "Group Block"
Elements rows = table.select("TR");             
for (int i = 0; i < rows.size(); i++) {
    Element row = rows.get(i);
    Elements cols = row.select("TD");
       for (Element col : cols){
           switch(col.text()){
           case "bbd": 
           case "bbgen":
           case "bbtest":
           //...more cases
               groupBlock.add(col.text());
               break;
           default:
               break;
           }
       }      
}
objPlace = groupBlock.toArray();

Now I have to parse the two hostnames (hostname1 and hostname2) to put in a separates TextView but the problem is that hostname can change its name in the future. In addition, I have to parse the "IMG SRC" in each TD, for example:

I need parse only the IMG SRC /hobbit/gifs/static/green.gif to which will have to append the rest of the url at the begining: http://example.com/hobbit/gifs/static/green.gif to get the image and put it in another field in XML layout. I have to do this with all IMG SRC TD in HTML file.

I know that once I get the images I have to do something like:

InputStream input = new java.net.URL(imgSrc).openStream();
bitmap = BitmapFactory.decodeStream(input);
ImageView logoimg = (ImageView) findViewById(R.id.logo);
logoimg.setImageBitmap(bitmap);

imgSrc should be array with all IMG SRC

I don't know how to start in previous steps, I'm very rookie with Jsoup and Android.

luksch · Accepted Answer

You could query for the with the hostname element. Then go to the parent, i.e. the . from then get again all children . these will be the entries containing the links you want to get. Something along this:

Document document = Jsoup.parse(html);
Element table = document.select("TABLE").get(1); 
Elements asWithName = table.select("tr>td a[name]");
for (Element aWithName : asWithName){
    String name = aWithName.attr("name");
    System.out.println("hostname="+name);
    Element tr = aWithName.parent().parent();
    for (Element td : tr.select("td")){
        Element img = td.select("img").first();
        if (img == null){
            continue;
        }
        String imgRelPath = img.attr("src");
        System.out.println("  imgRelPath="+imgRelPath);
    }
}

Problems using jsoup to parse HTML Table

Answers (1)

Related Questions