java threadlocal

{//defines a second static inner class public void GetData () {System.out.println () () () { thread.currentthread (). GetName () + " Get data from B "+data"; } public static void Main (string[] args) { //Create two threads in the main function for (int i=1;iWe run the above program to find the result as follows Thread-0 has set the data 9296023 Thread-1 has set the data 979192099 Thread-0 get data from a 979192099 Thread-1 get data from a 979192099 Thread-0 get data from B 97919209

1 ImportJava.util.Random;2 3 /**4 * Threadlocal class and application skills5 * *******************************************************************6 * Each thread invokes the set method of the global Threadlocal object, which is equivalent to adding a record to its internal map, key7 * respectively is the respective thread, values is the value that the respective set method wears in. Threadlocal.clear () c

I learned about hibernate today and saw the data connection section. I saw a threadlocal class and read these two articles online. Article. Http://qszhuang.blogchina.com/blog/article_20407.72483.html Http://www-900.ibm.com/developerWorks/cn/java/j-threads/index3.shtml#h5450 Threadlocal is used to implement a local variable of the thread. A local variable of t

SimpleDateFormat InitialValue () { return new SimpleDateFormat ("Yyyy-mm-dd"); }　　Cause of Confusion:Usually subclasses do not rewrite the ToString method, we can easily determine whether the ToString value is an instance, but because SimpleDateFormat itself implemented ToString so this rule is not in effect.Remind:In the future, as far as possible do not simply use the ToString output to determine whether it is an instance, if you need to judge this, be sure to check the ToSt

Simple is a jar package. In a simple thing is a tool class! What can the tool do? The tool is used to write multithreaded programs, line. Multithreading is effective. You can only go to the Internet to find information, because today we just to introduce threadlocal knowledge.Let's take a look at the interface method of the Threadlocal package:void set (Object value) sets the value of the thread local var

This article reproduces the blog from the small Wolf Preface In the interview session, the investigation "ThreadLocal" is also the interviewer's routine, so it is very necessary to understand it thoroughly. Some interviewers will come straight to the question: "Do you know threadlocal?" ” "Tell me about your understanding of threadlocal." Of course, there are al

Threadlocal useThreadlocal can let threads have local variables, in a Web environment, in order to facilitate code decoupling, we usually use it to save context information, and then use a Util class to provide access to the portal, from the controller layer to the service layer can easily get the context. Let's take a look at the threadlocal by code.Create a new Threadcontext class to hold thread context i

"ThreadLocal"-general Linux technology-Linux programming and kernel information is also available in LinuxC. The following is a detailed description. Now I am reading a book on Linux development and have come into contact with multi-thread development. I was surprised to find that I use C to Write multi-thread programs, and there are also threads. The concept of internal variables, even called interfaces, is very similar to

Public classThreadlocalmain {Private StaticThreadlocalNewThreadlocal() {@OverrideprotectedInteger InitialValue () {return0; } }; classTestthreadImplementsRunnable {Private intindex; PublicTestthread (intindex) { This. index =index; } Public voidrun () {System.out.println ("Thread" +index + "initial value:" + value.get ()); for(inti=0;i) {Value.set (Value.get ()+i); } System.out.println ("Thread" +index + "cumulative value:" + value.get ()); } Public Static voidmain (String [] a

If multiple threads are using the same data, then how to guarantee the data sharing within the thread scope.We can use a map to store the current thread and its data as follows:Package Andy.thread.traditional.test;import Java.util.hashmap;import java.util.map;import java.util.Random;/** * @ Author Zhang,tianyou * @version November 8, 2014 2:12:44 shared data in thread-wide *///public class Threadscopeshareddata {private static int Data = 0;//threadlocal