In java, what's the best way to read a url and split it into its parts?

Question

Firstly, I am aware that there are other posts similar, but since mine is using a URL and I am not always sure what my delimiter will be, I feel that I am alright posting my

Answer 1

The URL class pretty much does this, look at the tutorial. For example, given this URL:

http://example.com:80/docs/books/tutorial/index.html?name=networking#DOWNLOADING

This is the kind of information you can expect to obtain:

protocol = http
authority = example.com:80
host = example.com
port = 80
path = /docs/books/tutorial/index.html
query = name=networking
filename = /docs/books/tutorial/index.html?name=networking
ref = DOWNLOADING

Answer 2

you can use String class split() and store the result into the String array then iterate the array and store the variable and value into the Map.

public class URLSPlit {
    public static Map<String,String> splitString(String s) {
        String[] split = s.split("[= & ?]+");
        int length = split.length;
        Map<String, String> maps = new HashMap<>();

        for (int i=0; i<length; i+=2){
              maps.put(split[i], split[i+1]);
        }

        return maps;
    }

    public static void main(String[] args) {
        String word = "q=java+online+compiler&rlz=1C1GCEA_enIN816IN816&oq=java+online+compiler&aqs=chrome..69i57j69i60.18920j0j1&sourceid=chrome&ie=UTF-8?k1=v1";
        Map<String, String> newmap =  splitString(word);

        for(Map.Entry map: newmap.entrySet()){
            System.out.println(map.getKey()+"  =  "+map.getValue());
        }
    }
}

Answer 3

Instead of url.split(".org"); try url.split("/"); and iterate through your array of strings.

Or you can look into regular expressions. This is a good example to start with.

Good luck on your homework.

Answer 4

This is how you should split your URL parts: http://docs.oracle.com/javase/tutorial/networking/urls/urlInfo.html