通过JSoup将ID属性捕获到数组吗？

Question

I'm using the library Jsoup, is that I have a string with two HTML components with the attribute ID to all, I want to do is capture the two IDs in an array.

String chain = "<div id='stylized' class='myform' style='margin:20px auto;'>
            <div id='material_comprado'  > </div> ";

I was trying to use this for, but failed.

int i = 0;
Elements values = doc.getElementsByAttribute("id");
String s[] = new String[values.size()];
for(Element el : values){
    s[i++] = el.attr("id");
    System.out.println("==> "+s[i]);
}

Anyone can help me.

Answer 1

Your JSoup code itself is fine.

You're incrementing the array index for s beyond its upper bound resulting in an ArrayIndexOutOfBoundsException when you attempt to display the element. Increment the index after youve finished accessing the array

for (Element el : values){
    s[i] = el.attr("id");
    System.out.println("==> " + s[i]);
    i++; // now safe to increment
}