Recent questions tagged java

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java - How to implement pagination in spring boot with hibernate

I am using spring boot with hibernate and I want to use pagination in my project. I have searched on google and ... 0/post/top/1 Please suggest. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can I compress HTTP Requests using GZIP?

I am communicating to a Tomcat Server using a Java ME application on my mobile device. I was wondering if I ... of bytes sent over the network. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Picasso image loading issue with Android 9.0 Pie

I am not able to load images using Picasso library in Android 9.0 Pie. Actually, it works fine for below ... : Dispatcher delivered [R1]+1232ms See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Casting a Spring's Proxy object to the actual runtime class

I'm using Spring, at one point I would like to cast the object to its actual runtime implementation. Example: ... -a-spring-proxy/ Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Performing regex on a stream

I have some large text files which im going to preform consecutive matching on (just capturing, not replacing). Im ... this in an efficient way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Trouble Setting Up ANTLR 4 IDE on Eclipse Luna (4.4)

I'm trying to install the ANTLR 4 IDE on Eclipse Luna (4.4). I've installed it from the Marketplace but I ... I save it doesn't do anything. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - IntStream iterate in steps

How do you iterate through a range of numbers (0-100) in steps(3) with IntStream? I tried iterate, but ... 100).forEach(System.out::println) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - ConcurrentHashMap computeIfAbsent

There is a new computeIfAbsent API introduced in Java 8. The javadocs for ConcurrentHashMap's impelementation of ... the function twice? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Convert Hash Map to 2D Array

What is the easiest way to convert a HashMap into a 2D array? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to get a good quality thumbnail

I am trying to create a high quality thumbnail of this image, with Java and Scalr 3.2 This is the relevant ... 's the library that I choose. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Apache CXF client loads fine in Eclipse but standalone jar throws NullpointerException in WSDLServiceFactory

My goal is to create a Web Service client that runs in a standalone jar with all the dependencies ... "WebServiceException",wsException); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring MVC File Upload Help

I have been integrating spring into an application, and have to redo a file upload from forms. I am aware of ... response, command, errors); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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702 views

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java - Spring Rest Controller Return Specific Fields

I've been going through my head the best way to design a JSON API using Spring MVC. As we all ... which includes Jackson for serialization. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Is there a SaxParser that reads json and fires events so it looks like xml

This would be great as it would allow my xml stuff to read json w/out any change except for the different sax parser. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Play video from url in VideoView [Android]

I found a similar questions but nothing work for me. I try play video from this url: http://videocdn. ... > </LinearLayout> </ScrollView> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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259 views

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java - Which mouse button is the middle one?

I'm currently developing a program in Java where a certain event must be triggered only when the user clicks ... t find something about this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to get the DiscriminatorValue at run time

We have the following classes @Entity @Inheritance(strategy = InheritanceType.SINGLE_TABLE) // optional annotation as this is ... .equals("AP"); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android - Set ImageView to URL

I am trying to set an Imageview to a URL. Below is my code protected void onCreate(Bundle savedInstanceState) { // TODO Auto- ... .............. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Javafx Treeview item action event

I'm trying to create a menu using a treeView. This is the first time I'm using treeView and have been ... the treeItems to type Button ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I combine/merge two wav files into one wav file?

How can I merge two wav files using java? I tried this but it didn't work correctly, is their any other way to do it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - prevent external content to be loaded in selenium webdriver test

The question: Is is possible to tell a browser that is controlled by selenium webdriver to not load any content ... about how to address this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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java - Rotate a 3D object on 3 axis in JavaFX properly

So the method that I've used so far to rotate objects in JavaFX was that I layered it in 3 groups, ... ? All help would be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring welcome-file-list correct mapping

I know that in spring I must define welcome-file, which should be outside of WEB-INF folder, so I define it ... , if this was confusing... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

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java - How to write Unit test for @KafkaListener?

Trying to figure out if I can write unit test for @KafkaListener using spring-kafka and spring-kafka-test. My ... message is arrived in Kafka. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to reload resource bundle in web application?

I have resource bundle as Java class that read values from database. When i update db i need to reload bundle, but ... .Messages" var="m" /> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

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java - Best practice for controlling access to a ".internal" package

I write Eclipse plugins and export some classes as an API while wanting to restrict access to other classes. I ... need with non-plugin code. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Carriage returns/line breaks with in strings in Android

I'm writing an Android app where I'm writing a file to disk with one data value per line. Later, such files ... I use safely in this context? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Mockito: How to mock an interface of JodaTime

I use JodaTime#DateTime, and I need to mock its behavior. Since it is not possible to directly mock JodaTime#DateTime ... I really want to learn See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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