JSON Post in Java 401 Error (UnAuthorized) [duplicate]

Question

So I'm trying to post to a URL (which I can't show, because it's sensitive information), but I keep getting a 401 error, which means unauthorized. And I have credentials, but I don't know how to set them. I have a username, password, and a role.

public class GSONPost {

public static void main(String[] args) {

    Person personObj = new Person();
    personObj.setOrganization("ACC");
    personObj.setFirstName("Harry");
    personObj.setLastName("Smith");
    personObj.setPhone1(null);
    personObj.setPhone2(null);
    personObj.setEmail(null);
    personObj.setState("AZ");
    personObj.setLeadDate(null); // Fix Later
    personObj.setCompany("Dan's Mortage");
    personObj.setCompanyContactName("Indiana Jones");
    personObj.setOutsideRep("Joel Martin");

    Person personObj2 = new Person();
    personObj2.setOrganization("ACC");
    personObj2.setFirstName("Richard");
    personObj2.setLastName("Nixon");
    personObj2.setPhone1(null);
    personObj2.setPhone2(null);
    personObj2.setEmail(null);
    personObj2.setState(null);
    personObj2.setLeadDate(null); // Fix Later
    personObj2.setCompany("Dan's Mortage");
    personObj2.setCompanyContactName("Indiana Jones");
    personObj2.setOutsideRep("Joel Martin");

    List<Person> personArrayList = new ArrayList<Person>();
    personArrayList.add(personObj);
    personArrayList.add(personObj2);

    PersonList personList = new PersonList();
    personList.setPersonList(personArrayList);

    Gson gson = new GsonBuilder().setPrettyPrinting().create();

    String json = gson.toJson(personList);

    try {
        // write converted json data to a file named "PersonList.json"
        FileWriter writer = new FileWriter("C:\\Users\\Dylan\\JsonFiles\\PersonList.json");
        writer.write(json);
        writer.close();

    } catch (IOException e) {
        e.printStackTrace();
    }

    try

    {


        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost postRequest = new HttpPost(
                "https://myurl/addlist");

        StringEntity input = new StringEntity(json);
        input.setContentType("application/json");
        postRequest.setEntity(input);

        HttpResponse response = httpClient.execute(postRequest);

        BufferedReader br = new BufferedReader(new InputStreamReader((response.getEntity().getContent())));

        String output;
        System.out.println("Output from Server .... \n");
        while ((output = br.readLine()) != null) {
            System.out.println(output);
        }

        httpClient.getConnectionManager().shutdown();

    } catch (MalformedURLException e) {

        e.printStackTrace();

    } catch (IOException e1) {

        e1.printStackTrace();

    }
}
}

If anyone can show me a way where I could set my credentials, so that I won't get a 401 error, or if you guys can see anything else that's causing the issue and could let me know, that would be great. Thanks in advance.

I'm not sure, how can I tell? This is my first project like this. — dochsner
– dochsner, Commented Mar 8, 2016 at 4:53
@dochsner, add authentication information to request object. You could see this stackoverflow.com/questions/3283234/… — mmuzahid
– mmuzahid, Commented Mar 8, 2016 at 4:57
You need to configure your SSL settings. In simple terms, either your code or the server is refusing to proceed because of security settings. — Tim Biegeleisen
– Tim Biegeleisen, Commented Mar 8, 2016 at 5:01

Tim Biegeleisen · Accepted Answer · 2016-03-08 05:00:20Z

1

You need to configure your SSL settings before you make the call. Currently, your POST is failing most likely during the SSL handshake. A quick fix would be to trust all certificates. Here is a code snippet which will do just that:

SSLContextBuilder builder = new SSLContextBuilder();
builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build());
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(sslsf).build();

HttpPost postRequest = new HttpPost("https://myurl/addlist");

StringEntity input = new StringEntity(json);
input.setContentType("application/json");
postRequest.setEntity(input);

HttpResponse response = httpClient.execute(postRequest);

answered Mar 8, 2016 at 5:00

Tim Biegeleisen

526k32 gold badges323 silver badges399 bronze badges

Sign up to request clarification or add additional context in comments.

17 Comments

Tim Biegeleisen Over a year ago

What's the new error?

dochsner Over a year ago

When I try to put this code in the Eclipse it underlines this line in red builder.loadTrustMaterial(null, new TrustSelfSignedStrategy()); and says Unhandled exception type KeyStoreException

Tim Biegeleisen Over a year ago

Huh? Are you missing a dependency or something? You will have to resolve this on your own, I believe my strategy is correct for your problem.

dochsner Over a year ago

I'm using httpclient-4.3.1.jar

dochsner Over a year ago

Ok, I may have got it

|

Collectives™ on Stack Overflow

JSON Post in Java 401 Error (UnAuthorized) [duplicate]

1 Answer 1

17 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

17 Comments

Linked

Related