Java

Keeping Query Params in a Hashtable

Demonstrates how to use a Chilkat Hashtable to hold query params and re-emit as a query param string.

Note: The ToQueryString method was added in Chilkat v9.5.0.92.

Chilkat2 Java

import com.chilkatsoft.chilkat2.Hashtable;
import com.chilkatsoft.chilkat2.StringTable;

public class ChilkatExample {

    public static void main(String[] args) {
        Hashtable ht = new Hashtable();

        // Add name/value pairs from an existing query param string where the values are already URL encoded.
        String qp = "txt=this%20is%20a%20test&color=blue&fruits=apples%26oranges";
        ht.addQueryParams(qp);

        // Add some additional name/value pairs.
        ht.addStr("name", "Jack Sparrow");
        ht.addStr("movie", "Pirates of the Carribean");

        // Iterate over the hash table to show what we have..

        StringTable keys = new StringTable();
        ht.getKeys(keys);
        int numKeys = keys.getCount();
        String key = "";
        String val = "";
        int i = 0;
        while (i < numKeys) {
            key = keys.stringAt(i);
            val = ht.lookupStr(key);
            System.out.println(key + " = " + val);
            i = i + 1;
        }

        // Output for the above loop:

        // color = blue
        // name = Jack Sparrow
        // fruits = apples&oranges
        // txt = this is a test
        // movie = Pirates of the Carribean

        // Get all name/value pairs as a query parm string with values URL encoded
        qp = ht.toQueryString();
        System.out.println(qp);

        // Result:
        // color=blue&name=Jack%20Sparrow&fruits=apples%26oranges&txt=this%20is%20a%20test&movie=Pirates%20of%20the%20Carribean
    }
}