原始URL:
生成的URL:
寻找一种JavaScript函数,它可以解析URL的每个参数,然后添加新参数或更新已存在参数的值。http://server/myapp.php?id=10&enabled=true
生成的URL:
寻找一种JavaScript函数,它可以解析URL的每个参数,然后添加新参数或更新已存在参数的值。http://server/myapp.php?id=10&enabled=true
该解决方案可以在不重新加载页面的情况下,通过更新搜索参数来更新窗口的当前URL。这种方法在PWA/SPA环境中非常有用。
function setURLSearchParam(key, value) {
const url = new URL(window.location.href);
url.searchParams.set(key, value);
window.history.pushState({ path: url.href }, '', url.href);
}
?
符号,我发现有些解决方案会生成file.php?&foo=bar
之类的结果。我想出了自己的解决方案,它能完美地达到我的要求!location.origin + location.pathname + location.search + (location.search=='' ? '?' : '&') + 'lang=ar'
注意:在IE浏览器中,location.origin无法使用,这里是它的修复方法。
var myURL = '/search';
myURL = updateUrl(myURL,'location','california');
console.log('added location...' + myURL);
//added location.../search?location=california
myURL = updateUrl(myURL,'location','new york');
console.log('updated location...' + myURL);
//updated location.../search?location=new%20york
myURL = updateUrl(myURL,'location');
console.log('removed location...' + myURL);
//removed location.../search
//示例2
var myURL = '/search?category=mobile';
myURL = updateUrl(myURL,'location','california');
console.log('added location...' + myURL);
//added location.../search?category=mobile&location=california
myURL = updateUrl(myURL,'location','new york');
console.log('updated location...' + myURL);
//updated location.../search?category=mobile&location=new%20york
myURL = updateUrl(myURL,'location');
console.log('removed location...' + myURL);
//removed location.../search?category=mobile
//example3
var myURL = '/search?location=texas';
myURL = updateUrl(myURL,'location','california');
console.log('added location...' + myURL);
//added location.../search?location=california
myURL = updateUrl(myURL,'location','new york');
console.log('updated location...' + myURL);
//updated location.../search?location=new%20york
myURL = updateUrl(myURL,'location');
console.log('removed location...' + myURL);
//removed location.../search
//示例4
var myURL = '/search?category=mobile&location=texas';
myURL = updateUrl(myURL,'location','california');
console.log('added location...' + myURL);
//added location.../search?category=mobile&location=california
myURL = updateUrl(myURL,'location','new york');
console.log('updated location...' + myURL);
//updated location.../search?category=mobile&location=new%20york
myURL = updateUrl(myURL,'location');
console.log('removed location...' + myURL);
//removed location.../search?category=mobile
//example5
var myURL = 'https://example.com/search?location=texas#fragment';
myURL = updateUrl(myURL,'location','california');
console.log('added location...' + myURL);
//added location.../search?location=california#fragment
myURL = updateUrl(myURL,'location','new york');
console.log('updated location...' + myURL);
//updated location.../search?location=new%20york#fragment
myURL = updateUrl(myURL,'location');
console.log('removed location...' + myURL);
//removed location.../search#fragment
function updateUrl(url,key,value){
if(value!==undefined){
value = encodeURI(value);
}
var hashIndex = url.indexOf("#")|0;
if (hashIndex === -1) hashIndex = url.length|0;
var urls = url.substring(0, hashIndex).split('?');
var baseUrl = urls[0];
var parameters = '';
var outPara = {};
if(urls.length>1){
parameters = urls[1];
}
if(parameters!==''){
parameters = parameters.split('&');
for(k in parameters){
var keyVal = parameters[k];
keyVal = keyVal.split('=');
var ekey = keyVal[0];
var evalue = '';
if(keyVal.length>1){
evalue = keyVal[1];
}
outPara[ekey] = evalue;
}
}
if(value!==undefined){
outPara[key] = value;
}else{
delete outPara[key];
}
parameters = [];
for(var k in outPara){
parameters.push(k + '=' + outPara[k]);
}
var finalUrl = baseUrl;
if(parameters.length>0){
finalUrl += '?' + parameters.join('&');
}
return finalUrl + url.substring(hashIndex);
}
在@Vianney的回答中补充一点https://dev59.com/KXRB5IYBdhLWcg3w3K4J#44160941
我们可以按照以下方式导入Node中内置的URL模块
const { URL } = require('url');
示例:
Terminal $ node
> const { URL } = require('url');
undefined
> let url = new URL('', 'http://localhost:1989/v3/orders');
undefined
> url.href
'http://localhost:1989/v3/orders'
> let fetchAll=true, timePeriod = 30, b2b=false;
undefined
> url.href
'http://localhost:1989/v3/orders'
> url.searchParams.append('fetchAll', fetchAll);
undefined
> url.searchParams.append('timePeriod', timePeriod);
undefined
> url.searchParams.append('b2b', b2b);
undefined
> url.href
'http://localhost:1989/v3/orders?fetchAll=true&timePeriod=30&b2b=false'
> url.toString()
'http://localhost:1989/v3/orders?fetchAll=true&timePeriod=30&b2b=false'
有用的链接:
https://developer.mozilla.org/en-US/docs/Web/API/URL https://developer.mozilla.org/en/docs/Web/API/URLSearchParams
请查看https://github.com/derek-watson/jsUri
它是一个处理javascript中URI和查询字符串的项目。
该项目使用了Steven Levithan编写的出色parseUri正则表达式库。您可以安全地解析各种形状和大小的URL,即使它们无效或丑陋。
它处理以下类型的URL:
?
,但同时没有任何参数的URL它不处理以下类型的URL:
适用于:
function appendQueryParameter(url, name, value) {
if (url.length === 0) {
return;
}
let rawURL = url;
// URL with `?` at the end and without query parameters
// leads to incorrect result.
if (rawURL.charAt(rawURL.length - 1) === "?") {
rawURL = rawURL.slice(0, rawURL.length - 1);
}
const parsedURL = new URL(rawURL);
let parameters = parsedURL.search;
parameters += (parameters.length === 0) ? "?" : "&";
parameters = (parameters + name + "=" + value);
return (parsedURL.origin + parsedURL.pathname + parameters);
}
使用ES6模板字符串的版本。
适用于:
function appendQueryParameter(url, name, value) {
if (url.length === 0) {
return;
}
let rawURL = url;
// URL with `?` at the end and without query parameters
// leads to incorrect result.
if (rawURL.charAt(rawURL.length - 1) === "?") {
rawURL = rawURL.slice(0, rawURL.length - 1);
}
const parsedURL = new URL(rawURL);
let parameters = parsedURL.search;
parameters += (parameters.length === 0) ? "?" : "&";
parameters = `${parameters}${name}=${value}`;
return `${parsedURL.origin}${parsedURL.pathname}${parameters}`;
}
var kvp = document.location.search.substr(1).split("&");
var j = 0;
for (; j < kvp.length; j++) {
let pair = kvp[j].split("=");
if (!Object.keys(input).includes(pair[0])) {
output[i++] = pair.join("=");
}
}
document.location.search = output.join("&");
} - Reneesh Kurianfunction AddUrlParameter(sourceUrl, parameterName, parameterValue, replaceDuplicates)
{
if ((sourceUrl == null) || (sourceUrl.length == 0)) sourceUrl = document.location.href;
var urlParts = sourceUrl.split("?");
var newQueryString = "";
if (urlParts.length > 1)
{
var parameters = urlParts[1].split("&");
for (var i=0; (i < parameters.length); i++)
{
var parameterParts = parameters[i].split("=");
if (!(replaceDuplicates && parameterParts[0] == parameterName))
{
if (newQueryString == "")
newQueryString = "?";
else
newQueryString += "&";
newQueryString += parameterParts[0] + "=" + parameterParts[1];
}
}
}
if (newQueryString == "")
newQueryString = "?";
else
newQueryString += "&";
newQueryString += parameterName + "=" + parameterValue;
return urlParts[0] + newQueryString;
}
return $.query.parse(sourceUrl).set(parameterName, parameterValue).toString();
// uses the URL class
function setParam(key, value) {
let url = new URL(window.document.location);
let params = new URLSearchParams(url.search.slice(1));
if (params.has(key)) {
params.set(key, value);
}else {
params.append(key, value);
}
}
url.searchParams
是该 URL
对象的预初始化参数列表。 - amphetamachineVianney Bajart的回答是正确的;然而,URL只有在具有完整的端口、主机、路径和查询的情况下才能工作:
new URL('http://server/myapp.php?id=10&enabled=true')
如果只传递查询字符串,URLSearchParams 才能正常工作:
new URLSearchParams('?id=10&enabled=true')
如果您有不完整或相对的URL,并且不关心基本URL,您可以通过?
进行分割以获取查询字符串,稍后再像这样连接:
function setUrlParams(url, key, value) {
url = url.split('?');
usp = new URLSearchParams(url[1]);
usp.set(key, value);
url[1] = usp.toString();
return url.join('?');
}
let url = 'myapp.php?id=10';
url = setUrlParams(url, 'enabled', true); // url = 'myapp.php?id=10&enabled=true'
url = setUrlParams(url, 'id', 11); // url = 'myapp.php?id=11&enabled=true'
不兼容Internet Explorer浏览器。
var u = new URL(window.location), usp = u.searchParams;
,则无需使用任何复杂的字符串拆分。 - amphetamachinesetUrlParams('https://example.com?foo=thing???&bar=baz', 'baz', 'qux') => "https://example.com?foo=thing&baz=qux???&bar=baz"
。 - amphetamachine