node . js urlobject . query API
原文:https://www.geeksforgeeks.org/node-js-urlobject-query-api/
urlObject.query 是返回的查询字符串，不带 ASCII 问号(？)或名为 parse()方法的 querystring 模块返回的对象。Url.parse()方法用于检查查询是字符串还是对象。基本上，传递给 url.parse()方法的参数(parseQueryString)告诉查询的性质。
语法
urlObject.query
注意:如果这个方法返回一个字符串，那么不执行对查询字符串的解码，如果它返回一个对象，那么两个键、值对都被解码。
例:
'query=string' or {'query': 'object'}
'http://localhost:8000/gfg.html?name:GFG'
In the above URL, the name is the query and GFG is the string.
下面的程序说明了在 Node.js 中 url.query 方法的使用:
例 1:
// Node program to demonstrate the
// url.query API as Setter
// Importing the module 'url'
var url = require('url');
// Set the URL from which the queryString will be fetched
var address = 'http://localhost:8000/gfg.html?month=Decemeber';
// Parse the address
var q = url.parse(address, true);
// The query property returns an object with all the
// querystring parameters as properties
var query = q.query;
var month = query.month;
console.log(month);
输出:
December
例 2:
// Node program to demonstrate the
// url.query API as Setter
// Importing the module 'url'
var url = require('url');
// Set the URL from which the queryString will be fetched
var address = 'http://localhost:8000/gfg.html?month=Decemeber&year=2019';
// Parse the address
var q = url.parse(address, true);
// The query property returns an object with all the
// querystring parameters as properties
var query = q.query;
var year = query.year;
console.log(year);
输出:
2019
参考:https://nodejs . org/API/URL . html # URL _ URL object _ query
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