时间:2008-07-18 09:11:22   来源:论坛整理  作者:  编辑:chinaitzhe

eclipse 的workspace 文件夹下面有个 叫“.metadata”的文件夹，那是做什么用的？
网友回复:此回复为自动发出,仅用于显示而已，并无任何其他非凡作用
楼主【thinkhejie】截止到2008-07-17 09:45:54的历史汇总数据(不包括此帖)：
发帖的总数量:6 发帖的总分数:130 每贴平均分数:21
回帖的总数量:5 得分贴总数量:1 回帖的得分率:20%
结贴的总数量:6 结贴的总分数:130
无满足结贴数:1 无满足结贴分:20
未结的帖子数:0 未结的总分数:0
结贴的百分比:100.00% 结分的百分比:100.00%
无满足结贴率:16.67 % 无满足结分率:15.38 %
敬礼!
网友回复:配置信息
网友回复:eclipse自己的一些配置设置信息在里面，你不用管他
网友回复:关注！
网友回复:

引用 3 楼 lovingprince 的回复:

eclipse自己的一些配置设置信息在里面，你不用管他

网友回复:

引用 3 楼 lovingprince 的回复:

eclipse自己的一些配置设置信息在里面，你不用管他

网友回复:

引用 3 楼 lovingprince 的回复:

eclipse自己的一些配置设置信息在里面，你不用管他

网友回复:配置信息，假如是web工程的话，里面描述是工程名，访问路径等信息
网友回复:用 ultraEditor打开看看就知道了
网友回复:

引用 3 楼 lovingprince 的回复:

eclipse自己的一些配置设置信息在里面，你不用管他

你别给删了就行
网友回复:另外里面还记录有本地源代码修改历史（你源代码不同版本的备份）。
网友回复: 我在外网上找到的，不是太好。
Metadata is structured data which describes the characteristics of a resource. It shares many similar characteristics to the cataloguing that takes place in libraries, museums and archives. The term "meta" derives from the Greek word denoting a nature of a higher order or more fundamental kind. A metadata record consists of a number of pre-defined elements representing specific attributes of a resource, and each element can have one or more values. Below is an example of a simple metadata record:

Element name


Value

Title


Web catalogue

Creator


Dagnija McAuliffe

Publisher


University of Queensland Library

Identifier


http://www.library.uq.edu.au/iad/mainmenu.html

Format


Text/html

Relation


Library Web site

Each metadata schema will usually have the following characteristics:

* a limited number of elements
* the name of each element
* the meaning of each element

Typically, the semantics is descriptive of the contents, location, physical attributes, type (e.g. text or image, map or model) and form (e.g. print copy, electronic file). Key metadata elements supporting access to published documents include the originator of a work, its title, when and where it was published and the subject areas it covers. Where the information is issued in analog form, such as print material, additional metadata is provided to assist in the location of the information, e.g. call numbers used in libraries. The resource community may also define some logical grouping of the elements or leave it to the encoding scheme. For example, Dublin Core may provide the core to which extensions may be added.

Some of the most popular metadata schemas include:

* Dublin Core
* AACR2 (Anglo-American Cataloging Rules)
* GILS (Government Information Locator Service)
* EAD (Encoded Archives Description)
* IMS (IMS Global Learning Consortium)
* AGLS (Australian Government Locator Service)

While the syntax is not strictly part of the metadata schema, the data will be unusable, unless the encoding scheme understands the semantics of the metadata schema. The encoding allows the metadata to be processed by a computer progr


am. Important schemes include:

* HTML (Hyper-Text Markup Language)
* SGML (Standard Generalised Markup Language)
* XML (eXtensible Markup Language)
* RDF (Resource Description Framework)
* MARC (MAchine Readable Cataloging)
* MIME (Multipurpose Internet Mail Extensions)

Metadata may be deployed in a number of ways:

* Embedding the metadata in the Web page by the creator or their agent using META tags in the HTML coding of the page
* As a separate HTML document linked to the resource it describes
* In a database linked to the resource. The records may either have been directly created within the database or extracted from another source, such as Web pages.

The simplest method is for Web page creators to add the metadata as part of creating the page. Creating metadata directly in a database and linking it to the resource, is growing in popularity as an independent activity to the creation of the resources themselves. Increasingly, it is being created by an agent or third party, particularly to develop subject-based gateways.
网友回复:原来如此 接收了
网友回复:

引用 3 楼 lovingprince 的回复:

eclipse自己的一些配置设置信息在里面，你不用管他

网友回复:

引用 8 楼 youjianbo_han_87 的回复:

配置信息，假如是web工程的话，里面描述是工程名，访问路径等信息

网友回复:看帖。
网友回复:比如说 你当前workspace 中存在4个工程， 当前有几个Java文件的Editor 打开。 在eclipse关闭再打开他还会保存这些信息

在“.metadata”的文件夹 中存储了记录当前的这些信息，当然不只上面的信息还有很多其他的 东西
网友回复:删了也没事 删完后 你在ECLIPSE里看不到你的项目了 不过没关系 重新导入就行

另外你对ECLIPSE的一些设置也恢复默认了 没关系 重新设就好了
网友回复:记录eclipse工作时候需要的一些信息
与你的工程无关