問(wèn)題描述

<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="abc" targetNamespace="http://schemas.businessNameHere.com/SoftwareNameHere" 
           elementFormDefault="qualified" 
           xmlns="http://schemas.businessNameHere.com/SoftwareNameHere" 
           xmlns:mstns="http://schemas.businessNameHere.com/SoftwareNameHere" 
           xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="..." type="..." />
<xs:complexType name="...">

我正在開發(fā)一個(gè)使用 XSD 生成 .cs 文件的項(xiàng)目.我的問(wèn)題是關(guān)于字符串 "http://schemas.businessNameHere.com/SoftwareNameHere" 如果我??改變它，它不起作用.但是 http://不是一個(gè)有效的......背后的邏輯是什么，我在哪里可以找到關(guān)于放什么或如何更改它的信息?

I am working on a project using XSD to generate .cs file. My question is concerning the string "http://schemas.businessNameHere.com/SoftwareNameHere" If I change it, it doesn't work. But the http:// is not a valid one... what is the logic behind and where can I can information about what to put there or how to change it?

推薦答案

XSD 命名空間不必是有效的 URI.擁有一個(gè)作為 URL 的命名空間字符串并不意味著從 URL 中獲取任何內(nèi)容，或者與 Web 有任何關(guān)系——它只是一個(gè)與其他字符串一樣的字符串.因此，盡管從實(shí)際上不指向任何東西的意義上說(shuō)，URL 可能是無(wú)效的，但它仍然是作為命名空間聲明的有效字符串.

XSD namespaces do not have to be valid URI's. Having a namespace string that is a URL doesn't mean anything is fetched from the URL, or anything to do with the web at all - it's simply a string like any other. So although the URL may be invalid from the sense that it doesn't actually point to anything, it's still a valid string as a namespace declaration.

您可以閱讀一些在命名空間標(biāo)識(shí)符存在的原因這個(gè)格式在這里.

使用 URL 作為命名空間標(biāo)識(shí)符有幾個(gè)原因，但主要是為了方便 - 它是一個(gè)唯一標(biāo)識(shí)符，通常對(duì)用戶具有一定的意義，就像 Java 命名空間經(jīng)典以com"開頭的方式、組織"或網(wǎng)絡(luò)".

There are several reasons for using URL's as a namespace identifier, but mainly it is for convenience - it's a unique identifier that generally has some meaning attached to it for the users, much like the way Java namespaces classically begin with "com", "org" or "net".

關(guān)于為什么命名空間是 URI(技術(shù)上，IRI)格式的細(xì)節(jié)，你可以閱讀 W3C 的 XML 命名空間標(biāo)準(zhǔn).指定 XML 命名空間采用 IRI(國(guó)際資源標(biāo)識(shí)符)格式，在 RFC3986.

For the nitty gritty of why namespaces are in URI (technically, IRI) format, you can read the W3C's standards for XML namespaces. The specify that XML Namespaces are in IRI (International Resource Identifier) format, defined in RFC3986.

有關(guān)如何正確使用命名空間的更多信息，有很多很棒的演練，like這個(gè).更改命名空間時(shí)什么不起作用?

For more information on how to properly use namespaces, there are lots of great walkthroughs, like this one. What isn't working when you change the namespace?

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