I want to build a generic HttpPost function in Java that will parse name value pairs from an array

Question

I have a function to read JSON from a web service:

public String readJSONFeed(String URL, String userName, String password){
...
    List<NameValuePair> params = new ArrayList<NameValuePair>(2);
    params.add(new BasicNameValuePair("userName", userName));
    params.add(new BasicNameValuePair("password", password));
...
}

And I call it from an AsyncTask:

EditText userName = (EditText)findViewById(R.id.txtUserName);
EditText password = (EditText)findViewById(R.id.passWord);

return readJSONFeed("http://service.com/service.php", userName.getText().toString(), password.getText().toString());

My question is how can make the readJsonFeed generic and have it parse an array into name value pairs.

score 0 · Accepted Answer · answered Nov 17 '14 at 17:18

You can try using String ... params and then getting the values with params[0], params[1], etc. This will complicate things a bit because you need the name of the param and the value, but you can put the name, value like this when sending the params to the method, always, and make sure the params are always in pairs.

For example:

public String readJSONFeed(String ... params){

    if (params.lenght % 2 != 0) return null;

    List<NameValuePair> params = new ArrayList<NameValuePair>(params.lenght / 2);
    for (int i = 0; i < params.lenght - 1; i += 2) {
        params.add(new BasicNameValuePair(params[i], params[i + 1]));
}

//calling
readJSONFeed(name1, value1, name2, value2, name3, value3); etc

Coming from a PHP background I was thinking that I could make an associative array somehow and then traverse the key/values. however, this works as well. Thanks!! — silversunhunter, Nov 17 '14 at 18:03
sure, you can also do that, the params is an array after all — mthandr, Nov 17 '14 at 18:04

I want to build a generic HttpPost function in Java that will parse name value pairs from an array

1 Answers1