CODEWITHSUNDEEP
javaandroidparsinghashmapkey-value
QED
QED

Reputation: 9913

Parse HTTP-style key-value pairs into java.util.HashMap

I am consuming a web service which presents its responses as an HTTP-style list of key-value pairs. I want to parse them into a HashMap. I do not want to write the parser. I want to revise my current hackish solution, a string.split("&") followed by a series of string.split("=") calls with logic interspersed.

Does anybody out there in SO-land know of references to a library that will do this? I browsed around in Apache and javax but didn't see much. I'm doing this in Android.

A simple example of a response is:

result=success&id=8a8d3c30-e184-11e1-9b23-0800200c9a66&name=wahooooooo

The ideal function:

public HashMap<String, String> parse(InputStream in);

Upvotes: 0

Views: 3311

Answers (3)

Cheese Bread
Cheese Bread

Reputation: 2275

Already answered but here is an alternative to URLEncodedUtils

public static HashMap<String, String> getQueryString(String url) {
    Uri uri= Uri.parse(url);

    HashMap<String, String> map = new HashMap<>();
    for (String paramName : uri.getQueryParameterNames()) {
        if (paramName != null) {
            String paramValue = uri.getQueryParameter(paramName);
            if (paramValue != null) {
                map.put(paramName, paramValue);
            }
        }
    }
    return map;
}

Upvotes: 0

mabroukb
mabroukb

Reputation: 701

if you have apache libraries, you can use URLEncodedUtils class like this : 

    HashMap<String, String> parameters = new HashMap<String, String>();

    String query = "result=success&id=8a8d3c30-e184-11e1-9b23-0800200c9a66&name=wahooooooo";
    List<NameValuePair> params = URLEncodedUtils.parse(query, Charset.defaultCharset());
    for (NameValuePair nameValuePair : params) {
        parameters.put(nameValuePair.getName(), nameValuePair.getValue());
    }

Upvotes: 5

JAVAGeek
JAVAGeek

Reputation: 2794

You can use UrlEncodedUtils

just invoke URLEncodedUtils.parse(yourString,Charset.forName("UTF-8")).

and you will get a List<NameValuePair> containing name and value associated elements.

see this : HttpComponents

here is a simple program

Upvotes: 2

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