Java
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Parsing object reference and memory leak in Java JNI programming
JNI, Java Native Interface, is the programming interface of native code. JNI enables Java code programs to interact wi…… -
Java uses websocket and obtains httpsession source code analysis (recommended)
1： Scope of use of this article This article is not limited to spring boot. Ordinary spring projects and even servlet…… -
An example of Java exporting excel general method
An example of Java exporting excel general method The general method of exporting excel from Java only requires a list…… -
Java get HTTP request header method example
This example describes the method of Java to obtain HTTP request header. Share with you for your reference, as follows…… -
Java servlet generates JSON format data and displays it with jQuery
This article describes the method of generating JSON format data by java servlet and displaying it with jQuery. Share …… -
Java programming method example of UDP network communication
This paper describes the method of UDP network communication by Java programming. Share with you for your reference, a…… -
Those things pushed by IOS
Go straight to the topic and talk about how to simulate push and process push messages. Before entering the topic, I'l…… -
Explore JAVA memory regions in depth
1、 Overview in the process of executing Java programs, the memory managed by Java virtual machine will be divided int…… -
JSP authentication method using servlet filter
This paper describes the method of JSP authentication using servlet filter. Share with you for your reference, as foll…… -
Is there such a thing in every loop in Java?
If there is such a thing, I will imagine that the grammar is the same while(Integer item : group<Integer>; item …… -
Java – why do I get “unable to parse symbols”?
I haven't encountered any difficulties before. I have imported this project before I'm not sure what has changed I cli…… -
JavaFX: use JavaFX to embed browsers different from WebView
I am using a JavaFX application that contains several HTML, CSS, and JS files rendered by an internal WebKit browser N…… -
Is there such a thing in every loop in Java?
If there is such a thing, I will imagine that the grammar is the same while(Integer item : group<Integer>; item …… -
Java – how does spring JDBC temaplate send the full batch size to the DB2 server at one time?
Although JDBC template Batchupdate (...) is running. I can see that the DB row count increases gradually (by running c…… -
AOP – how to exclude methods from AspectJ
I'm trying to use AspectJ to exclude several methods from log files (I only use spring and load time weaving) Is there…… -
Java – a best practice for sharing web layer code (controllers and JSPS) between similar web applications
I'm trying to rewrite some aging web applications There are two very, very similar, but I didn't share the code today.…… -
Java – where can I get these exercises to solve it?
Recently, I successfully did a Java programming exercise sent by the recruitment company. The problem statement is lik…… -
Java – stateless session bean with instance variables
I have a stateless session bean that contains a public method, several private methods, and some instance level variab…… -
Java – Disable JMX (spring, xbean) in ActiveMQ network
Because I encountered many difficulties in this problem, I released my solution Another problem is that this anomaly c…… -
java – Calendar. Getinstance() and gregoriancalendar The difference between getinstance()
Since I first introduced the replacement date, I have been using the static method calendar GetInstance () to get a ne…… -
Java – spring websocket sent to specific people
I added custom token based authentication for spring web app and extended the same authentication for spring websocket…… -
Java – use guava cache without load function
My java application has a cache. I want to replace the current cache implementation with guava cache Unfortunately, my…… -
Java – espresso click menu item
I have a menu in the actionbar I created: @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(Menu…… -
Java – how to perfectly simulate keyevents?
How do you build your own keyevent object when the end user types something, which perfectly (or very closely) matches…… -
Java – does the order in the declaration of multidimensional arrays affect the memory used?
How many bytes do you want to allocate for a and B? import android.graphics.Bitmap; Bitmap[][][] a = new Bitmap[1000]…… -
Java method for saving the current state of the program
Can I save the current state of the Java program and reload it? The plan is rather complicated I just need to be able …… -
MVC Java config – handlerinterceptor does not exclude paths
I have an MVC Java configuration, but handlerinterceptor does not exclude some modes On the line marked XXX, if 1) I a…… -
Collection – give me a multifunctional practical use case
I want to know some actual use cases (it would be better if they had no association / binding with any programming lan…… -
Java – how to use CMU Sphinx 4 for voice and text of English voxforge model
I tried to find out how to use sphinx4 or pocketphinx with the English voxforge model, but I couldn't make it work I'v…… -
Java – streaming or custom jars in Hadoop
I run streaming media jobs on Hadoop (Amazon's EMR) and use mapper and reducer written in Python I want to know if I i…… -
Java – Hadoop – mapper constructor args
Is there any way to provide mapper constructor args in Hadoop? Libraries that may create jobs through some packaging? …… -
Optimize memory usage of string collections in Java
I have a large number of name value pairs (about 100k), and I need to store them in some kind of cache (such as hash m……