ProJava7NIO.2资源-CSDN文库

5星 · 超过95%的资源需积分: 10 65 浏览量 2014-06-17 13:13:28 上传评论收藏 4.15MB PDF 举报

资源推荐

资源详情

资源评论

Leonard

Shelve in

Programming Languages/Java

User level:

Intermediate–Advanced

www.apress.com

SOURCE CODE ONLINE

BOOKS FOR PROFESSIONALS BY PROFESSIONALS

Pro Java 7 NIO.2

Pro Java 7 NIO.2 gives you the skills to write robust, scalable Java applications using

NIO.2. It covers the three primary elements that offer new input/output (I/O) APIs in

Java 7, showing you how to:

• Use the extensive file I/O API system that developers have long sought

• Work with the socket channel API to carry out multicasting and socket binding

associated with channels

• Enhance scalability with the asynchronous I/O API: map to I/O facilities, completion

ports, and various I/O event port mechanisms

With Pro Java 7 NIO.2, you’ll learn how to:

• Get/set file metadata through the java.nio.file.attribute API (including POSIX)

• Manage symbolic and hard links

• Deal with files and directories through the new java.nio.file.Files API

• Use the FileVisitor API to develop recursive file operations

• Explore the Watch Service API and file change notification

• Use the new SeekableByteChannel API for working with random access files

• Develop blocking/non-blocking socket-based applications

• Use the jewel in the crown of NIO.2: the Asynchronous Channel API

• Refactor java.io.File code

Take your Java applications to the next level with Pro Java 7 NIO.2. Each chapter con-

tains extensive code examples that show the power and elegance of NIO.2, giving you

the knowledge to apply the latest and greatest techniques in your own code.

iii

Contents at a Glance

Contents at a Glance ....................................................................................................... iii

Contents .......................................................................................................................... iv

About the Author ........................................................................................................... xiii

About the Technical Reviewer ....................................................................................... xiv

Acknowledgments .......................................................................................................... xv

Preface .......................................................................................................................... xvi

Chapter 1: Working with the Path Class ........................................................................... 1

Chapter 2: Metadata File Attributes ............................................................................... 11

Chapter 3: Manage Symbolic and Hard Links ................................................................. 35

Chapter 4: Files and Directories ..................................................................................... 43

Chapter 5: Recursive Operations: Walks ........................................................................ 77

Chapter 6: Watch Service API ....................................................................................... 111

Chapter 7: Random Access Files .................................................................................. 135

Chapter 8: The Sockets APIs ........................................................................................ 169

Chapter 9: The Asynchronous Channel API .................................................................. 215

Chapter 10: Important Things to Remember ................................................................ 263

Index ............................................................................................................................ 273

CHAPTER 1 ■ WORKING WITH THE PATH CLASS

• getFileSystem(URI uri): This is a static method that returns a file system from

the set of available file system providers that match the given URI schema. The

Path class manipulates a file in any file system (FileSystem) that can use any

storage place (java.nio.file.FileStore; this class represents the underlying

storage). By default (and commonly), the Path refers to files in the default file

system (the file system of the computer), but NIO.2 is totally modular—an

implementation of FileSystem for data in memory, on the network, or on a virtual

file system is perfectly agreeable to NIO.2. NIO.2 provides us with all file system

functionalities that we may need to perform over a file, a directory, or a link.

The Path class is an upgraded version of the well-known java.io.File class, but the File class has

kept a few specific operations, so it is not deprecated and cannot be considered obsolete. Moreover,

starting with Java 7, both classes are available, which means programmers can mix their powers to

obtain the best of I/O APIs. Java 7 provides a simple API for conversion between them. Remember the

days when you had to do the following?

import java.io.File;

…

File file = new File("index.html");

Well, those days are gone, because with Java 7 you can do this:

import java.nio.file.Path;

import java.nio.file.Paths;

…

Path path = Paths.get("index.html");

At a closer look, a Path is a programmatic representation of a path in the file system. The path string

contains the file name, the directory list, and the OS-dependent file delimiter (e.g., backslash “\” on

Microsoft Windows and forward slash “/” on Solaris and Linux), which means that a Path is not system

independent since it is based on a system-dependent string path. Because Path is basically a string, the

referenced resource might not exist.

Defining a Path

Once you identify the file system and the location of a file or directory, you can create a Path object for it.

Absolute paths, relative paths, paths defined with the notation “.” (indicates the current directory) or

“..” (indicates the parent directory), and paths containing only a file/directory name are covered by the

Path class. The simplest solution for defining a Path is to call one of the get() methods of the Paths

helper class. The following subsections present several different ways to define a path to the same file

(on Windows)—C:\rafaelnadal\tournaments\2009\BNP.txt.

Define an Absolute Path

An absolute path (also known as a full path or file path) is a path that contains the root directory and all

other subdirectories that contain a file or folder. Defining an absolute path in NIO.2 is a one-line-of-code

task, as you can see in the following example, which points to the file named BNP.txt in the

C:\rafaelnadal\tournaments\2009 directory (the file may not exist for testing this code):

Path path = Paths.get("C:/rafaelnadal/tournaments/2009/BNP.txt");

剩余295页未读，继续阅读

评论收藏

内容反馈

Jerry__SK

2014-08-06

出版社的pdf，但是顺序有错乱，目录放到了最后

baidu_16615059

粉丝: 0
资源: 1

Pro Java 7 NIO.2

Pro Java 7 NIO.2.pdf

Java NIO 中英文版 + Pro Java 7 NIO.2

Java I/O, NIO and NIO.2

Apress.Pro.Java.7.NIO.2.2011

Pro Java 7 NIO.2 原版pdf by Leonard

ProJava7NIO.2PDFBooks.pdf 英文原版

Pro Java 7 NIO2

pro_java_7_nio.2.pdf

PRO JAVA 7 NIO2

Java IO, NIO and NIO.2

Java NIO.2 使用Path接口来监听文件、文件夹变化

Java IO,NIO and NIO.2 mobi

Java IO图书

Pro.Java.8.Programming.3rd.Edition.1484206428

Pro Java 7 NIO

Pro.Java.8.Programming.3rd.Edition.1484206428.epub

Pro Java 8 Programming(Apress,3ed,2015)

clj-async-tcp-echo-nio.2:Clojure 中使用 Java 7 NIO.2 的异步 TCP 回显客户端服务器

Java IO, NIO and NIO.2(Apress,2015)

Java-NIO-2-async-channels:＃Neste artigo，使用简单的服务作为Java 7 NIO.2的API来简化客户端的使用。 将Veremos作为类AsynchronousServerSocketChannel和AsynchronousSocketChannel，将其作为类的原理，可以作为服务对象，也可以作为客户端

Java IO, NIO and NIO.2 原版pdf by Friesen

big-data-aggregator:大数据聚合器，领域驱动设计，Java 8，流，Spring Boot

pro_android_cpp_with_the_ndk.pdf

cheshuo：:jack-o-lantern:轻量级的游戏服务器框架。 基于Springboot和Netty。 使用ProtoBuf作为客户端和服务器之间的通信

protobuf-demo

Android C++高级编程：使用NDK_Onur Cinar, 于红PDF电子书下载 带书签目录 完整版

最新资源

Java-NIO-2-async-channels:＃Neste artigo，使用简单的服务作为Java 7 NIO.2的API来简化客户端的使用。将Veremos作为类AsynchronousServerSocketChannel和AsynchronousSocketChannel，将其作为类的原理，可以作为服务对象，也可以作为客户端

cheshuo：:jack-o-lantern:轻量级的游戏服务器框架。基于Springboot和Netty。使用ProtoBuf作为客户端和服务器之间的通信

Android C++高级编程：使用NDK_Onur Cinar, 于红PDF电子书下载带书签目录完整版