包含标签：Java 的文章
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Deeply analyze the memory semantic implementation and application scenarios of volatile in Java
Implementation of volatile memory semantics Next, let's take a look at how JMM implements the memory semantics of vola…… -
Explain in detail the use examples of statement object statement operation MySQL in JSP
The statement object statement contains two main methods: the executeupdate () method performs data update operations …… -
Example of Java clearing garbage files from U disk memory card
Use the following example to run sort in Java 1. Enter the file path you want to sort. For example, sort the files und…… -
Java simple quick sort instance analysis
1、 Basic concepts Find an element (you can find any one in theory) as the benchmark, and then partition the array so …… -
Java uses policy mode to operate JDBC database
Java uses policy mode to operate JDBC database 1: Construct a tool class that operates the database to obtain and rele…… -
Research on the latest features of ios10 push
Recently, I have made great changes in the research on the new push features of ios10 compared with the previous ones.…… -
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. NiO channel and TLS
How to protect Java socketchannel, serversocketchannel or even datagram channel using TLS? I know there are some frame…… -
Java / JPA | query using the specified inheritance type
I am building a query on a generic table "sample", and I have several types inherited from this table "sampleone", "sa…… -
Java – JPA: extending persistence context and separating entities
There seem to be two modes to implement business transactions across multiple HTTP requests and jpas: >Entity manag…… -
Java – populate the HashMap with entries in the properties file
I want to use the properties class to populate the HashMap I want to load The entries in the propeties file, and then …… -
Java – NoClassDefFoundError does not have any class name
I tried to run Java tasks from ants I'm trying to run the "org. Apache. Tools. Ant. Launch. Launcher" class I keep get…… -
Java – how to get a heap dump from running Tomcat 7
I tried this get a heapdump on JVM from Tomcat 6 Solution The easiest way to get a heap dump is to use jmap Execute th…… -
Java – how do I get a fully qualified class name in eclipse?
Is there a quick way to click on a Java class in eclipse and get its fully qualified name, or copy it to the clipboard…… -
Java – GlassFish security – jdbcrealm: how to configure login using SHA-256 summary
I use JDBC realm to protect my GlassFish v3 0.1 b22. It is set to use the user table in my database for authentication…… -
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……