问题
I am trying to create a Jbutton and which can call my program once i click on to that button. but no luck i am pretty sure i am doing something wrong can someone help.
so i have made a class demoapp. java and i want to call that using jbutton. I tried activelistener concept no help.
This what i want to call into my JButton. Can someone help me with that code for jbutton. thank you.
public class DemoApp extends Application {
public void run(){
public static void main(String[] args) throws AuthorizationException, URISyntaxException {
launch(args);
}
// These are pulled from gradle.properties
String Domain;
String clientId;
String clientSecret;
String redirectUri;
String scope;
String grantType;
/**
* Build the authorization request URL
*
* @return
* @throws URISyntaxException
* @throws MalformedURLException
*/
public URI getAuthorizationEndpointUri() throws URISyntaxException, MalformedURLException {
URIBuilder builder = new URIBuilder();
builder.setScheme("https");
builder.setHost(Domain);
builder.setPath("/oauth2/default/v1/authorize");
builder.addParameter("client_id", clientId);
builder.addParameter("redirect_uri", redirectUri);
builder.addParameter("response_type", "code");
builder.addParameter("state", "this is a state");
builder.addParameter("scope", scope);
URL url = builder.build().toURL();
return url.toURI();
}
/**
* Requests an authorization code from the auth server
*
* @return
* @throws MalformedURLException
* @throws URISyntaxException
* @throws AuthorizationException
*/
public String requestAuthCode() throws MalformedURLException, URISyntaxException, AuthorizationException {
// Generate the auth endpoint URI to request the auth code
URI authorizationEndpoint = getAuthorizationEndpointUri();
System.out.print("Authorization Endpoint URI: ");
System.out.println(authorizationEndpoint.toString());
final URI redirectUri = new URI(this.redirectUri);
// Create the user agent and make the call to the auth endpoint
final UserAgent userAgent = new UserAgentImpl();
final AuthorizationResponse authorizationResponse = userAgent.requestAuthorizationCode(authorizationEndpoint, redirectUri);
// We should have the code, which we can trade for the token
final String code = authorizationResponse.getCode();
System.out.print("Authorization Code: ");
System.out.println(code);
return code;
}
/**
* Given an authorization code, calls the auth server to request a token
*
* @param code
* @return
* @throws URISyntaxException
* @throws IOException
*/
public String getTokenForCode(String code) throws URISyntaxException, IOException {
// The token request URL
final String tokenUrl = "https://"+ Domain +"/oauth2/default/v1/token";
// The original redirect URL
final URI redirectUri = new URI(this.redirectUri);
// Using HttpClient to make the POST to exchange the auth code for the token
HttpClient client = HttpClientBuilder.create().build();
HttpPost post = new HttpPost(tokenUrl);
// Adding the POST params to the request
List<NameValuePair> urlParameters = new ArrayList<NameValuePair>();
urlParameters.add(new BasicNameValuePair("grant_type", grantType));
urlParameters.add(new BasicNameValuePair("code", code));
urlParameters.add(new BasicNameValuePair("redirect_uri", redirectUri.toString()));
urlParameters.add(new BasicNameValuePair("client_id", clientId));
urlParameters.add(new BasicNameValuePair("client_secret", clientSecret));
urlParameters.add(new BasicNameValuePair("scope", scope));
post.setEntity(new UrlEncodedFormEntity(urlParameters));
// Execute the request
HttpResponse response = client.execute(post);
// Print the status code
System.out.println("Response Code : " + response.getStatusLine().getStatusCode());
// Get the content as a String
String content = EntityUtils.toString(response.getEntity());
System.out.println("Result : " + content.toString());
return content.toString();
}
/**
* Uses com.google.code.gson to pretty print JSON, just for fun
* @param json
* @return
*/
public static String prettyPrintJson(String json) {
Gson gson = new GsonBuilder().setPrettyPrinting().create();
JsonParser jp = new JsonParser();
JsonElement je = jp.parse(json);
String prettyJsonString = gson.toJson(je);
return prettyJsonString;
}
/**
* Loads our config info from the app.properties file
* @throws IOException
*/
public void loadProperties() throws IOException {
InputStream inputStream = getClass().getClassLoader().getResourceAsStream("app.properties");
Properties appProps = new Properties();
appProps.load(inputStream);
oktaDomain = appProps.getProperty("oktaDomain");
clientId = appProps.getProperty("oktaClientId");
clientSecret = appProps.getProperty("oktaClientSecret");
redirectUri = appProps.getProperty("redirectUri");
scope = appProps.getProperty("scope");
grantType = appProps.getProperty("grantType");
}
/**
* Entry point for the JavaFX application.
* 1) Loads the system properties
* 2) Requests the authorization code
* 3) Exchanges the code for the token
* 4) Displays the token
* @param primaryStage
*/
@Override
public void start(Stage primaryStage) {
try {
loadProperties();
String code = requestAuthCode();
String token = getTokenForCode(code);
primaryStage.setTitle("JavaFX OAuth");
Text tokenText = new Text();
tokenText.setText("Your token: \n" + prettyPrintJson(token));
tokenText.setWrappingWidth(600);
tokenText.setX(100);
tokenText.setY(100);
StackPane root = new StackPane();
root.getChildren().add(tokenText);
primaryStage.setScene(new Scene(root, 800, 800));
primaryStage.show();
}
catch (IOException | AuthorizationException | URISyntaxException e) {
e.printStackTrace();
}
}
}
}
来源：https://stackoverflow.com/questions/59431204/i-am-new-to-programming-need-guidance