How to parse HTML table using jsoup?

Question

I am trying to parse HTML using jsoup. This is my first time working with jsoup and I read some tutorial on it as well. Below is my HTML table which I am trying to parse -

Answer 1

Yes, it is possible with JSoup. First, you select the table. Then, you select the tags for rows. You can start from the second index since the first row contains only the column names. Then loop over the tags and get the specific index. In your case, the indexes 7 and 5 are important(index 7: Status, index 5: Host Name). Check the status if it equals to down and if it is, then add the Host Name to a list. That's all.

ArrayList downServers = new ArrayList<>();
Element table = doc.select("table").get(0); //select the first table.
Elements rows = table.select("tr");

for (int i = 1; i < rows.size(); i++) { //first row is the col names so skip it.
    Element row = rows.get(i);
    Elements cols = row.select("td");

    if (cols.get(7).text().equals("down")) {
        downServers.add(cols.get(5).text());
    }
}

Update: When you find the word Titan you can create another loop and look if the cluster name is empty.

Edit: I change the while loop to do while loop.

    ArrayList downServers = new ArrayList<>();
    Element table = doc.select("table").get(0); //select the first table.
    Elements rows = table.select("tr");

    for (int i = 1; i < rows.size(); i++) { //first row is the col names so skip it.
        Element row = rows.get(i);
        Elements cols = row.select("td");

        if (cols.get(3).text().equals("Titan")) {
            if (cols.get(7).text().equals("down"))
                downServers.add(cols.get(5).text());

            do {
                if(i < rows.size() - 1)
                   i++;
                row = rows.get(i);
                cols = row.select("td");
                if (cols.get(7).text().equals("down") && cols.get(3).text().equals("")) {
                    downServers.add(cols.get(5).text());
                }
                if(i == rows.size() - 1)
                    break;
            }
            while (cols.get(3).text().equals(""));
            i--; //if there is two Titan names consecutively.
        }
    }

downServers ArrayList will contain the list of down servers hostnames.