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https://stackoverflow.com/questions/6771258/what-does-meta-http-equiv-x-ua-compatible-content-ie-edge-do What's the difference if one web page starts with <!DOCTYPE html> <html...

2018/04/09 10:25
1.5K
Jasmine api

describe(description, specDefinitions) Create a group of specs (often called a suite). Calls to describe can be nested within other calls to compose your suite as a tree. Parame...

2018/04/02 14:07
81
Cache vs Buffer

Cache vs Buffer

2018/03/28 14:04
36
form 表单提交的问题

<div class="" id=""> <form class="" enctype="multipart/form-data" method="post" action={{actionUrl}} name="viewForm"> <div class=""> <label class="">View...

2018/03/27 17:22
82
Java的三种代理模式

1.代理模式 代理(Proxy)是一种设计模式,提供了对目标对象另外的访问方式;即通过代理对象访问目标对象.这样做的好处是:可以在目标对象实现的基础上,增强额外的功能操作,即扩展目标对象的功能....

2018/01/15 11:16
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ELK 阅读摘记

对象(object)是一种语言相关,记录在内存中的的数据结构。为了在网络间发送,或者存储它,我们需要一些标准的格式来表示它。JSON (JavaScript Object Notation)是一种可读的以文本来表示对象...

2018/01/04 15:54
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How Does Spring @Transactional Really Work?

In this post we will do a deep dive into Spring transaction management. We will go over on how does @Transactional really work under the hood. Other upcoming posts will include:...

2017/10/10 11:10
25
java 8 new feature --- default method

我们都知道在Java语言的接口中只能定义方法名,而不能包含方法的具体实现代码。接口中定义的方法必须在接口的非抽象子类中实现。下面就是关于接口的一个例子: 1 2 3 4 5 6 7 8 9 10 11 12 1...

2017/08/15 14:28
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Spring Boot Spring Cloud

Spring Boot就是一个内嵌Web服务器(tomcat/jetty)的可执行程序的框架。你开发的web应用不需要作为war包部署到web服务器中,而是作为一个可执行程序,启动时把Web服务器配置好,加载起来。 ...

2017/08/15 14:26
71
9 Things about null in Java

Java and null are uniquely bonded. There is hardly a Java programmer, who is not troubled by null pointer exception, it is the most infamous fact about. Even inventor of null co...

2017/08/08 10:53
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Java里实现链式编程风格

链式编程 所谓的链式编程,则是类似与StringBuffer的append方法的写法: StringBuffer buffer = new StringBuffer(); // 链式编程 buffer.append("aaa").append("bbb").append("ccc"); 如何实...

2017/07/28 14:13
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Java Language Keywords

Here is a list of keywords in the Java programming language. You cannot use any of the following as identifiers in your programs. The keywords const and goto are reserved, even ...

2017/07/26 10:42
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Java keyword: final

The final keyword can be applied to declaration of classes, methods and variables. Final class: if a class is marked as final, it cannot be subclassed/inherited by another class...

2017/07/26 10:35
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悲观锁,乐观锁

pessimistic locking,optimistic locking

2017/07/25 17:06
20
Informix 长事务 (Long Transaction) 详解

什么是“长事务”? 要理解什么是“长事务”,还要从“事务”本身及数据库的逻辑日志工作原理谈起。所谓“事务”(transaction),是一个完整的不可分割的数据处理单元。该单元中所有的数据处理...

2017/07/25 15:43
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前端数据结构与算法

特别欣赏最后一段话: 算法和数据结构是一个永恒的话题,它的目的是用最小的时间和最小的空间解决问题。但是有时候不用太拘泥于一定要最优的答案,能够合适地解决问题就是好方法,而且对于不...

2017/07/25 15:15
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javax.persistence Annotation MappedSuperclass

Designates a class whose mapping information is applied to the entities that inherit from it. 指定一个类,其映射信息应用于从它继承的实体。 A mapped superclass has no separate ta...

2017/07/24 16:45
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Hibernate与Jpa的关系

我知道Jpa是一种规范,而Hibernate是它的一种实现。除了Hibernate,还有EclipseLink(曾经的toplink),OpenJPA等可供选择,所以使用Jpa的一个好处是,可以更换实现而不必改动太多代码。 在pla...

2017/07/22 23:31
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event.preventDefault()

Description: If this method is called, the default action of the event will not be triggered. event.preventDefault() This method does not accept any arguments. For example, clic...

2017/07/21 14:21
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