Fastjson is a very good Java language implementation of the JSON parser and generator, from the Alibaba engineer Development.
Main Features:
Quick Fast (faster than any other java-based parser and generator, including Jackson)
• Strong (support for common JDK classes including any Java Bean class, Collection, Map, date, or enum)
• 0 Dependencies (no dependencies on any other class libraries except JDK)
Sample code:
Import Com.alibaba.fastjson.JSON;
Group Group = new Group ();
Group.s
way it can cause blocking 3. use the ALTER INDEX rebuild statement to rebuild the index as shown in the previous article Using this statement also rebuilds the index, but it does not need to unload and rebuild the index by dynamically rebuilding the index. is superior to the first two methods, but will still cause blocking. You can reduce the lock by using the online keyword, but it will cause the rebuild time to be extended. 4. using the Alter INDEX REORGANIZE This method does not rebuild the
Beanpostprocessor (Bean post processor) is commonly used to modify the value inside the bean, implement the bean dynamic proxy, and so on.
Both Beanfactorypostprocessor and Beanpostprocessor are the extension points exposed when spring initializes the bean. But what difference do they have?The graph of the Understanding bean life cycle shows that Beanfactorypostprocessor is the earliest called in the life cycle, much earlier than Beanpostprocessor.
Tags: How to create a show execution server space Restart service1, the basic Operation command:1. View all Storage enginesShow engines;2, view the existing table storage engine;Show create table table name;3. Create the storage engine specified by the tableCREATE TABLE table name (...). ) Engine=myisam,charset=utf8;4. Existing tables change the storage engineALTER TABLE name engine = MyISAM2, the characteristics of common storage engine:1. InnoDB Features1, support transactions, foreign keys, r
Understand the average Linux processor load. you may have a full understanding of the average Linux Load (loadaverages. The average load value can be seen in the uptime or top command. They may look like this: www.2cto. comloadaverage: 0... to understand the average load of Linux processors, you may have a full understanding of the average load of Linux. The average load value can be seen in the uptime or top command. They may look like this: www.2cto
This chapter is selected from the Intel official documentation and translated by myself.
Note that the following English word cache is used. If C is in uppercase, that is, cache, it indicates the term "cache". If C is in lowercase, that is, cache, indicates the verb -- indicates saving data to a high-speed buffer storage.
Intel 64 and the IA-32 architecture provide the ability to manage and enhance the execution of multiple processors connected to the same system bus. These include:
period.APTAnnotation Processing Tool is a built-in Tool for javac to scan and process Annotation information during compilation. From JDK 6, apt exposes available APIs. A specific processor receives a Java source code or compiled bytecode as the input, and then outputs some files (usually. java files ). This means that you can use apt to dynamically generate code logic. Note that apt can only generate new Java classes and cannot modify existing Java
Http://www.gracecode.com/posts/2973.htmlunderstand the average processor load in Linux
Original article:
Http://blog.scoutapp.com/articles/2009/07/31/understanding-load-averages
You may have a good understanding of the load averages in Linux. The average load value can be seen in the uptime or top command. They may look like this:
load average: 0.09, 0.05, 0.01
Many people will understand the average load as follows: three numbers represent the averag
the Hardware Management Console (hardwareManagement Console.
2. Problem Solving:
After introducing the concepts of "slot" and "lpar", how can we check the number of slots or lpar of the current machine?
First of all, we need to know that lpar has many applications on Minicomputers, and is rarely used on x86 servers. To view the number of slots, run the following command:
[Root @ compute-30-02 ~] # Lscpu | grep "CPU socket"
CPU socket (s): 2
Command to return the result. The number of slots on t
1 PrefaceWhat is Apache Nifi? The Nifi website explains the following: "An easy-to-use, robust and reliable data processing and distribution system". In layman's terms, Apache NiFi is an easy-to-use, powerful, and reliable data processing and distribution system designed to support data routing, transformation, and system mediation logic for highly configurable indicators.To be clearer about what Nifi can articulate, the following is a brief introduction to the Nifi architecture, as shown in.Acc
Processor is a private class inside a abstractpollingioprocessor abstract class.The Processor is a primary loop body that handles I/O output data streams.Processor's main work includes:1, priority to deal with the new iosession logic processing2. Jitter Processing3, iosession input and output work.The logic processing of the new iosessionLoop private final queue/*** Loops over the new sessions blocking queu
Original: http://blog.csdn.net/kirayuan/article/details/6321967We can find the number of processor in cat, where the processor can be understood as a logical CPU.Here excerpt of a blog to illustrate:What is the impedance matching principle for thread pool size?I refer to the "impedance matching principle" in the "common model", which is roughly speaking.If the thread in the pool is performing a task, the ti
A person's travel is lonely
A person's winter is cold
However
A person's processor is proud
Let us be proud once
I have received the kind book from the blog point of view, which has always been exquisite. You are welcome to book it!
The pre-sale addresses of China-pub are as follows (including directories, content descriptions, and preface ):
Http://product.china-pub.com/3804025
The pre-sale address of Amazon is as follows. You are welcome to watch
Aipu-dedicated game AI Processor
This article is published in love butterfly blog http://blog.csdn.net/lanphadayIf you are not transferred, please keep the full text complete and be sure to include this statement.
Even if we have the strongest CPU, it is still not powerful enough for our games. With the development of the gaming industry, GPU began to share the CPU's computing work on graphics rendering, and the emergence of PPU separated physical c
Advantages and disadvantages of multi-core processors
With the development of science and technology, Dual-Core processors have been widely used in our daily lives. Dual Core Processor refers to integrating two computing cores on one Processor to improve the computing capability.
You can open the task manager and click performance to view the CPU status.
Although in most cases, dual-cor
Nick McKeown, a professor of engineering at Stanford University, expects a new network processor to replace the ASIC currently used in routers and switches in the next decade; he said he has gone deep into the future of the Communication Processor: "and if you try to look at it with your eyes, it's like a network-based RISC processor."
McKeown assists in promotin
Computer Systems A Programmer ' s perspective Second EditionMany computer systems place restrictions on the allowable addresses for thePrimitive data types, requiring, the address for some type of object must being amultiple of some value K (typically 2, 4 , or 8). Such Alignment Restrictions Simplifythe design of the hardware forming the interface between the processor and Thememory s Ystem. For example, suppose a
When the BizTalk SQL adapter is applied, "new transactions cannot be registered to the specified transaction processor" appears.Author: Zheng Zuo Date:-6-26 while working on the BizTalk project, BizTalk Server and SQL Server are not on the same computer, when you use the SQL adapter to send data with the error message "new transactions cannot be registered to the specified transaction processor", the same p
PHP custom exception processor usage methods. The following four sections of code handle exceptions are simple applications (non-production environments) in my waylife project, which are neither robust nor beautifying, but the SNS project has been aborted. 1. an exception occurs when the hierarchical relationship processing of the exception class is
The following four sections of code show my simple application (non-production environment) in the way
1. Starting mode(1) NORFLASH:2MB, start running the first code from Norflash 0 address, so the code must be placed at the forefront of Norflash(2) NANDFLASH:128MB, but Nandflash does not participate in the same address, can not directly access, need to access the special register to access, so from the on-chip 4KB boot SRAM to start execution, that is, the 0 address is emissions boot SRAM (stepping Stone), the processor automatically copies the conten
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