java

问题 Been bashing my head in for a few days trying to get SSL working with an existing rest endpoint. Currently using self-signed certificates in a jks. We have a rest route (not this route, but very similar): @Override public void configure() { restConfiguration() .component("jetty") .scheme("https") .bindingMode(RestBindingMode.off) .dataFormatProperty("prettyPrint", "true") .port(8443); rest("/post") .post() .consumes("application/json") .produces("application/json") .to( // next endpoint // );

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: JPA OneToOne and ManyToMany between two entities I've searched for a solution to no avail. My question is I have two entities "Employee" and "Department" Many Employees belongs to One Department And One Department is headed by One Employee. Am getting errors anytime introduce both the @OneToOne and @OneToMany. This is the code public class Department { @Required public String deptName; @OneToMany(mappedBy="dept"

问题 Server OverviewI am getting an error while trying to start tomcat from eclipse. The error message shows. The server cannot be started because one or more of the ports are invalid. Open the server editor and correct the invalid ports. what I have done is installed tomcat v9.0 and eclipse oxygen and connected tomcat with eclipse. Windows 7 - 32 bit Eclipse Oxygen Tomcat v9.0 Please help me! The error message is... error message I followed an udemy course "Spring & Hibernate for Beginners" 回答1:

问题 //... Some annoying getter ExecutorService es = Executors.newSingleThreadExecutor(); Future<Integer> result = es.submit(new Callable<Integer>() { public Integer call() throws Exception { //Get some value from the SQL database. } }); return result; Okay, I've looked all over. I need to know how I can make this wait until it finishes retrieving a value from a database to return this. 回答1: You use result.get() to wait for the task to finish and to retrieve the result. The API documentation is

问题 I need to map a OneToMany relationship in hibernate, with the JPA annotations, in which is involved a weak entity. For example Table orders: CREATE TABLE orders( idorder serial NOT NULL, note varchar(30), CONSTRAINT orders_pkey PRIMARY KEY (idorder) ) Table OrderItems: CREATE TABLE orderitems( idorder integer NOT NULL, iditem serial NOT NULL, qnt integer, CONSTRAINT orderitems_pk PRIMARY KEY (idorder, iditem), CONSTRAINT fk_orderitems FOREIGN KEY (idorder) REFERENCES orders (idorder) MATCH

问题 I found a very strange behaviour in my AppCompatCheckBox, already searched a fix for it but didn't find, that's why I decided to ask here. I was trying to change the checked AppCompatCheckBox color programatically (as my app's color scheme changes dinamically, I can't use the XML attributes to color the CheckBox), so I used this approach: chkTos = (AppCompatCheckBox) findViewById(R.id.checkboxTos); ColorStateList colorStateList = new ColorStateList( new int[][]{ new int[]{-android.R.attr

问题 I found a very strange behaviour in my AppCompatCheckBox, already searched a fix for it but didn't find, that's why I decided to ask here. I was trying to change the checked AppCompatCheckBox color programatically (as my app's color scheme changes dinamically, I can't use the XML attributes to color the CheckBox), so I used this approach: chkTos = (AppCompatCheckBox) findViewById(R.id.checkboxTos); ColorStateList colorStateList = new ColorStateList( new int[][]{ new int[]{-android.R.attr

问题 I have json data like this: meds: [ { MedsID: 8063, updated_at: "2015-11-04T06:59:55", treatment_date: "2015-11-04T00:00:00", name: "name" } ], scores: [ { ScoreID: 75820, updated_at: "2015-11-04T06:59:55" dialysis_flow: 233, } ], dias: [ { DiasID: 75820, updated_at: "2015-11-04T06:59:55" name: "K", } ] And here is my Entities: public class BaseData{ public long id; } public class Med extends BaseData{ public String name; public String updated_at; public String treatment_date; } public class

问题 I am using the standard JavaFX preloader templete. But I am not sure how to link it to my JavaFX program. public class FXPreloader extends Preloader { ProgressBar bar; Stage stage; ....... } And here is my Main public class CIDCV extends Application { @Override public void start(Stage primaryStage) throws Exception { Parent root = FXMLLoader.load(getClass().getResource("Main.fxml")); Controller.stage=primaryStage; Scene scene = new Scene(root); Controller.stage.setScene(scene); Controller

问题 I am trying to create a filter function for my listview using multiple choiceboxes and I have no idea how to do it since i'm quite new to JavaFX. I did some research and I hear using a filteredList is required but most of the examples online revolve around only using a textfield. So this is my controller class @FXML private ChoiceBox<String> genre; @FXML private ChoiceBox<String> branch; @FXML private ChoiceBox<String> status; @FXML private ChoiceBox<String> company; @FXML private ListView