包含标签：Java 的文章
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Java – how to inject beans using EJB 3.1 before the class constructor runs?
I have a facade with persistence units I need the facade and initialize its dependencies before the rolecontroller con…… -
Java – beannotofrequiredtypeexception, but it is actually a $proxy type
I need help with spring and proxy issues Webapp project – > Spring context <context:annotation-config/> <c…… -
Java – MapReduce job without mapper
This may be a very basic question, but it is still helpful for many novices like me Can I do Mr work without a mapper?…… -
Unit test – when the result type is tile, the unit test fails
I tried to test my action class with the JUnit plug - in This action is as follows: @Action(value = "default",results …… -
Is JavaFX the choice of a dynamic GUI for a desktop or stand-alone application?
I want to make a dynamic UI for desktop applications I'm going to create it in JavaFX The second thing I want to know …… -
java – inputstream. Available() is always 0
I don't know what happened to my code I made no mistakes and did not respond I'm writing data to serialport and activa…… -
In Java / Apache httpclient, you cannot use vertical / pipe bars to process URLs
If I want to handle this URL, for example: post = new HttpPost("http://testurl.com/lists/lprocess?action=LoadList|4018…… -
Java – resolve “duplicate definition of library class” in Proguard
I have a java project that contains the Xerces library When I process a project with Proguard, I receive a warning: No…… -
Java – create volley requests in different threads
I want to use the volley Library in different threads for requests This means that there is a connection in the data p…… -
Java – valueeventlistener childeventlistener for recyclerview in Android
Firebase database users know that there are two basic listeners for listening to data: valueeventlistener and childeve…… -
java – Calendar. What does undecimber do?
The calendar class has a constant named undefcimber It describes the 13th month Is this constant useful? In Wikipedia,…… -
Java – Android UI element animation
I'm trying to animate UI elements I want to move an EditText and a button from the middle of the screen and display th…… -
Java – trim struts 2 text string input
What is the best way to trim this string? Where is the best place to place the trim code? Suppose my JSP has the follo…… -
Java – how to export all my IntelliJ code styles to Editorconfig file?
I tried to develop a standard code style for my project, and I've found it http://editorconfig.org/ , this is a standa…… -
Java – preconditions library throws illegalargumentexception for notnull check
Do you know that Apache commons validate or guava preconditions is a good alternative. When checking whether the objec…… -
Java EE – how to instantiate multiple CDI / weld beans for a class?
In spring, you can instantiate any class by defining the corresponding bean in XML conf You can also instantiate multi…… -
Java – create a runnable jar that contains external files
I want to build a running jar. Jar in Java I need to include some files in the jar so that when I execute the jar, the…… -
Java commons cli with options for a list of possible values
Xinxin banner Xinxin 200 new 200 new 200 new 200 new 200 new 200 new 200 new 200 new 200 new 200 new 200 new 200 new 2…… -
What time do you use the Callable object to call call () in Java Executor?
Here are some sample code for example What I need to know is when calling call () on calllable? What triggered it? pub…… -
Java – separate Classpaths for test code and main code
I have two source code trees in my eclipse Java application One is "SRC" and the other is "test" Each contains Directo…… -
Java – should private instance variables be accessed in constructors through getter and setter methods?
I know that private instance variables are accessed through their public getter and setter methods But when I generate…… -
Java – lwjgl 3 get cursor position
How do I get the cursor position? I checked the glfw documentation, and there is a method glfwgetcursorpos (window, &a…… -
Java – format date in function
I tried to format the date in the function interface, but I don't know if it is possible SimpleDateFormat dt1 = new Si…… -
Change the color of the panel title in Java Swing
I am running swing application on win7 with 144 DPI flat panel monitor The titles of my frame, options pane, etc. are …… -
The Java – graphics2d conversion result does not match the manual conversion
I use Java's graphics2d to manipulate my drawing on a component using affinetransform Sometimes I need to manually ope…… -
Randomize text files read in Java
I try to read a text file in Java, which is basically a set of problems There are four choices and one answer The stru…… -
Java – use the abstract init() function in the constructor of the abstract class
I have something like this: public abstract class Menu { public Menu() { init(); } protected abs…… -
Converting images to 2 colors in Java
I want to use java to convert the image to 2 colors, black and white I am converting to grayscale using the following …… -
Java nosuchmethodexception when getting constructor
I tried to use reflection to load instances of classes When I tried this, I got an exception without this method I'll …… -
Java – does hibernate / JPA consider transiant modifiers (not annotations)
I want to avoid serialization (in JMS / AMF), but still use JPA / hibernate to hold fields Is the transient modifier m…… -
Java – how to animate a gyro?
It's Hanukkah, and I'm trying to animate the Dreidel: I can make it rotate on its own axis This is my code: import sta……