iteye_2327-优快云博客

原创 Consider serialization proxies instead of serialized instances

The serialization proxy pattern is reasonably straightforward. First design a private static nested class of the serializable class. This nested class, known as the serialization proxy, should have a ...

2012-10-02 16:32:13 132

原创 Write readObject methods defensively

The problem is that the readObject method is effectively another public constructor, and it demands all of the same care as any other constructor. Just as a constructor must check its arguments for va...

2012-10-02 14:59:48 133

原创 Consider using a custom serialized form

Generally speaking, you should accept the default serialized form only if it is largely identical to the encoding that you would choose if you were designing a custom serialized form The default se...

2012-10-02 14:00:49 103

原创 Prefer executors and tasks to threads

By using executor service, you can: 1. wait for a particular task to complete 2. wait for any or all of a collection of tasks to complete 3. wait for executor service's graceful termination to comp...

2012-09-30 15:52:24 121

原创 Item 61: Throw exceptions appropriate to the abstraction

Higher layers should catch lower-level exceptions and, in their place, throw exceptions that can be explained in terms of the higher-level abstraction.

2012-09-28 21:27:49 131

原创【转载】cmd 查看端口使用情况

cmd 查看端口使用情况在开发过程中，启动服务的时候最经常就是碰到端口被占用的情况.下面介绍如何查看端口被那个程序占用了. eg: 要查看端口 8800 被什么程序占用了. 1. 运行 cmd 2. 输入 netstat -aon|findstr "8800" 查看占用端口的进程id 3. 运行tasklist|findstr "9204"...

2012-09-28 21:25:23 88

原创【转载】cmd 查看端口使用情况

cmd 查看端口使用情况在开发过程中，启动服务的时候最经常就是碰到端口被占用的情况.下面介绍如何查看端口被那个程序占用了. eg: 要查看端口 8800 被什么程序占用了. 1. 运行 cmd 2. 输入 netstat -aon|findstr "8800" 查看占用端口的进程id 3. 运行tasklist|findstr "9204"...

2012-09-28 21:24:54 104