Node.js url.parse() 和 pathname 属性
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Node.js url.parse() and pathname property
提问by William
I'm reading a getting started book on node.js called The Node Beginner Bookand in the code below (given in the book) I don't understand the significance of the pathname property hanging off the parse method. So I would like to know what it is doing. The documentationfor this method is not clear to me
我正在阅读一本关于 node.js的入门书，名为The Node Beginner Book，在下面的代码（书中给出）中，我不明白挂在 parse 方法上的 pathname 属性的重要性。所以我想知道它在做什么。我不清楚此方法的文档
var pathname = url.parse(request.url)**.pathname;**
var http = require("http");
var url = require("url");
function start(route, handle) {
function onRequest(request, response) {
var pathname = url.parse(request.url).pathname; // I don't understand the pathname property
console.log("Request for " + pathname + " received.");
route(handle, pathname);
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("Hello World");
response.end();
}
回答by sohel khalifa
pathnameis the path section of the URL, that comes after the host and before the query, including the initial slash if present.
pathname是 URL 的路径部分，位于主机之后和查询之前，包括初始斜杠（如果存在）。
For example:
例如：
url.parse('http://stackoverflow.com/questions/17184791').pathname
will give you:
会给你：
"/questions/17184791"
回答by bendytree
Here's an example:
下面是一个例子：
var url = "https://u:[email protected]:777/a/b?c=d&e=f#g";
var parsedUrl = require('url').parse(url);
...
protocol https:
auth u:p
host www.example.com:777
port 777
hostname www.example.com
hash #g
search ?c=d&e=f
query c=d&e=f
pathname /a/b
path /a/b?c=d&e=f
href https://www.example.com:777/a/b?c=d&e=f#g
And another:
还有一个：
var url = "http://example.com/";
var parsedUrl = require('url').parse(url);
...
protocol http:
auth null
host example.com
port null
hostname example.com
hash null
search null
query null
pathname /
path /
href http://example.com/
Node.js docs: URL Objects
Node.js 文档：URL 对象
回答by Ashita Gaur
pathnameis the part of URL section that comes after server and port. In,var pathname = url.parse(request.url).pathname; the request.url ,requests the url from the URL Section which is the set of the component - IP address of localhost , port no and file pathname.
路径名是位于服务器和端口之后的 URL 部分的一部分。在,var pathname = url.parse(request.url).pathname; request.url ，从 URL 部分请求 url，该部分是组件的集合 - localhost 的 IP 地址、端口号和文件路径名。
Let understand it by an example suppose this is the url to be requested to server http://127.0.0.1:8082/but for response to the client there should be an html file let it be index.html then http://127.0.0.1:8080/index.htmland this html file is the .pathname to the url. So,In var pathname = url.parse(http://127.0.0.1:8080/index.html).pathnamethe pathname is index.html that is response to client.
让我们通过一个例子来理解它假设这是要请求到服务器http://127.0.0.1:8082/的 url 但是为了响应客户端应该有一个 html 文件让它是 index.html 然后是 http://127.0 .0.1:8080/index.html这个 html 文件是 .pathname 到 url。所以，在 var pathname = url.parse( http://127.0.0.1:8080/index.html).pathname 中，路径名是 index.html ，它是对客户端的响应。
回答by Krishnamoorthy Acharya
if the following url is redirected in nodejs "http://localhost:9090/page/edit?pageId=1&type=edit"
如果以下 url 在 nodejs 中重定向“ http://localhost:9090/page/edit?pageId=1&type=edit”
q.pathname will be "/page/edit" section of the URL. Please find other section of
q.pathname 将是 URL 的“/page/edit”部分。请找到其他部分
http.createServer(function (req, res) {
var q = url.parse(req.url, true);
console.log(q.pathname);
// /page/edit
console.log(q.query['type'])
// edit
console.log(q)
//will show below attached image
})
回答by Harsh
url.parse(urlString[, parseQueryString[, slashesDenoteHost]])
urlString:The URL string to parse.
urlString：要解析的 URL 字符串。
parseQueryString :If true, the query property will always be set to an object returned by the querystring module's parse() method.
parseQueryString ：如果为 true，则查询属性将始终设置为由 querystring 模块的 parse() 方法返回的对象。
slashesDenoteHost :If true, the first token after the literal string // and preceding the next / will be interpreted as the host
slashesDenoteHost :如果为 true，则文字字符串 // 之后和下一个 / 之前的第一个标记将被解释为主机
So, the url.parse() method takes a URL string, parses it, and returns a URL object.
因此， url.parse() 方法接受一个 URL 字符串，解析它，并返回一个 URL 对象。
Thus,
因此，
var pathname = url.parse(request.url).pathname;
will return the path name of the host followed by '/'
将返回主机的路径名后跟“/”
For example:
例如：
var pathname = url.parse(https://nodejs.org/docs/latest/api/url.html).pathname
will return:
将返回：
/docs//latest/api/url.html
