Post with duplicate parameter names (array)

[Paris Diamantopoulos]

I need to send a POST request with duplicate parameter names, like "param=a&param=b".

Overriding the Request.getParams() does not work since Map<String, String> cannot have duplicate keys, so only one value would be sent.

I know I can rewrite the Request class to use a Map<String, String[]> or Map<String, List<String>>, but I was wandering if there is any other way that would not require altering the library.

Thanks in advance,

Paris

[Ficus Kirkpatrick]

You can override getBody() without having to modify the library.

F

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[Maurie Danko]

we did this in our Request overriding class

        // Volley library uses HashMap<String,String> which doesn't support duplicate keys

        @Override

        public byte[] getBody() throws AuthFailureError {

            if (postOrPutParams != null) {

                StringBuilder builder = new StringBuilder("");

                for (BasicNameValuePair nv : postOrPutParams) {

                    builder.append("&").append(nv.getName());

                    if (nv.getValue() != null) {

                        builder.append("=").append(nv.getValue());

                    }

                }

                if (builder.length() > 0) { // ! isEmpty()

                    builder.deleteCharAt(0);

                }

                return builder.toString().getBytes();

            }

            return null;

[harry dessieu]

It is true that Map<String, String> does not support duplicate but however that you

 could do something like this. you won't have to override getBody(), just the getParams which i'm assuming you're already doing.

   @Override

            protected Map<String, String> getParams() {

                Map<String, String> params = new HashMap<String, String>();;

                params.putAll(AddArrayParams());

 

                return params;

            }

////////////// you will use this method to add the array parameter

public  Map<? extends String, ? extends String> AddArrayParams() {

// TODO Auto-generated method stub

Map<String, String> params = new HashMap<String, String>();

                // figure that if its an array and the data is sent as [0],[1] then lets just send it up that way

                params.put("param[0]","a");

                         params.put("param[1]","b");

                         params.put("param[3]","c");

                        ////etc

   return params;

}

Good Luck 

[Ahmed Ashour]

Thanks harray your way work with me