Recent Posts
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Java – how do I detect which program plays sound on Windows 7?
I'm trying to write a small background program that will prevent music from playing Winamp. Com when another program p…… -
Java – we put servlets in Tomcat’s directory structure?
I copied a helloservlet application from the web and put it in the root folder Solution This document can help you htt…… -
Java – how to format strings using properties in beans
I want to create a string using the format and replace some tags in the format with properties in the bean Is there a …… -
Java – get screenshot of StartMenu
I'm using BitBlt to capture a window If aviation theme is enabled, the background of the captured image is black If I …… -
Multithreading – how to execute QObject:: movetothread() when qthreadpool is used?
I'm building a small multithreaded web server Qtcpsockets are obtained in the main thread, and then passed to qtthread…… -
Why Java util. The value of the calendar object will change after calling get (int)
I try to debug problems in some legacy code. I have narrowed the problem down to the following methods: public String …… -
Java – embedded jetty: select an existing spring MVC controller
context I work on a web application (using the play framework), and I'm trying to migrate to the traditional servlet m…… -
Java – synchronization, volatile and thread safety
I'm reading some books about Java concurrency recently With regard to thread safety, if you cannot make a class immuta…… -
Java – Avro architecture does not respect backward compatibility
I have this Avro architecture { "namespace": "xx.xxxx.xxxxx.xxxxx","type": "record","name": "MyPayLoad","fields": [ …… -
Java – Etag support for versioned entities
I intend to support etag.com for my restfull spring application Most of the resources I expose are versioned in dB I k…… -
Java – build upgrade: how to manage dependencies?
I'm trying to understand all the implications of switching our java project from snapshot / release strategy to build …… -
How to sample multichannel sound input in Java
I realize that this may be a relative niche, but maybe that's why it's a good question anyway I am looking for a hardw…… -
ORM – upgrade GlassFish V2 to JPA 2.0?
I'm trying to use hibernate 3.5 on GlassFish v2 5 and spring hibernate JPA vendoradapter, but when the spring context …… -
The Java – quartz job vs. thread executes a task immediately
Assuming I have some units of work to complete, I want to execute asynchronously relative to the rest of my applicatio…… -
Java – collections. Java used in JDK 1.5 An alternative to newsetfrommap?
I want to use this "collections. Newsetfrommap()" method in JDK 1.5, which does not support it protected Set<String…… -
Java – limit jtextpane memory usage
I have an application that continuously receives data on the socket, records the data to a file, and displays the data…… -
Explanation of Java generic getthis technique
I'm reading about Java genetics. I'm a little confused when I encounter this topic come from: http://www.angelikalange…… -
Java – hibernate annotations compilation error
When I tried to compile a dto file with hibernate annotations to map to DB, I encountered a strange problem When it fa…… -
Enumerations disassembled with javap do not display constructor parameters
When I disassemble enumeration with javap, the implicit constructor parameter of enumeration seems to be missing. I ca…… -
Java – how to correctly use JTI to declare JWT to prevent replay attacks?
I created some rest APIs using spring and implemented spring security using JWT for authentication My front end runs a…… -
Can I use azure table storage for conditional insertion
Can I use windows azure table storage service for conditional insertion? Basically, what I want to do is insert new ro…… -
Java EE – was remote container and arquillian on @ persistencecontext
For our integration testing, I want to use arquillian and follow all the steps in the "Getting Started tutorial" Becau…… -
When programming with Java / kotlin, it is recommended to use tail recursive or iterative version? Is there any difference in performance?
I try to learn good habits in programming, and I stick to this problem I know that in Java, recursive functions can be…… -
java – Float. Equals is completely useless. What should I use?
in consideration of: > == should never be used to compare doubles/floats > it appears from the docs that (beyond…… -
Java – code generated by soap UI
I have a web service and I'm trying to build a client I have the following WSDL: http://www.cmicdataservices.com/datac…… -
Java – use spring MVC and hibernate to dynamically add tenants in multi tenant database applications
I am developing a web application that uses a multi - tenant database configuration I want to add tenants dynamically …… -
Java – get the wrong timestamp from the object saved to the database by hibernate
I am new to hibernate and am developing a web project using it I have an object named area, which has a date object (J…… -
Javafx-2 – performance issues with JavaFX linechart with 65000 data points
Building the described linechart takes 15 minutes JavaFX, which doesn't work for my task Using good old swing and simi…… -
Java – how to allocate memory in Scala
We know that, unlike Java, Scala treats everything as an object For example, we have – object A{ val arg1=1 de…… -
java – com. sun. mail. smtp. SMTPSendFailedException：530 5.7. 0 must first issue the starttls command
I am creating an application 2.2 1 and try adding an email tool to it To this end, I have been in my build Dependency …… -
This is in Java – the thread “main” Java Exception in lang.stackoverflowerror
Why do I receive a stackoverflow error? My class – public class Tester { int id; Tester(int id){ this.id = id; }…… -
How to use java calendar to check whether today is Sunday
I wrote a few lines of code that didn't work Why? Can you explain something? Calendar date = Calendar.getInstance(); ……