我有这个URL:
site.fwx?position=1&archiveid=5000&columns=5&rows=20&sorting=ModifiedTimeAsc
我需要的是能够改变'行' url参数值我指定的东西，让我们说10。如果“行”不存在，我需要将它添加到url的末尾，并添加我已经指定的值(10)。
当前回答
// usage: clear ; cd src/js/node/js-unit-tests/01-set-url-param ; npm test ; cd -
// prereqs: , nodejs , mocha
// URI = scheme:[//authority]path[?paramName1=paramValue1¶mName2=paramValue2][#fragment]
// call by: uri = uri.setUriParam("as","md")
String.prototype.setUriParam = function (paramName, paramValue) {
var uri = this
var fragment = ( uri.indexOf('#') === -1 ) ? '' : uri.split('#')[1]
uri = ( uri.indexOf('#') === -1 ) ? uri : uri.split('#')[0]
if ( uri.indexOf("?") === -1 ) { uri = uri + '?&' }
uri = uri.replace ( '?' + paramName , '?&' + paramName)
var toRepl = (paramValue != null) ? ('$1' + paramValue) : ''
var toSrch = new RegExp('([&]' + paramName + '=)(([^&#]*)?)')
uri = uri.replace(toSrch,toRepl)
if (uri.indexOf(paramName + '=') === -1 && toRepl != '' ) {
var ampersandMayBe = uri.endsWith('&') ? '' : '&'
uri = uri + ampersandMayBe + paramName + "=" + String(paramValue)
}
uri = ( fragment.length == 0 ) ? uri : (uri+"#"+fragment) //may-be re-add the fragment
return uri
}
var assert = require('assert');
describe('replacing url param value', function () {
// scheme://authority/path[?p1=v1&p2=v2#fragment
// a clean url
it('http://org.com/path -> http://org.com/path?&prm=tgt_v', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ? with num value
it('http://org.com/path?prm=src_v -> http://org.com/path?&prm=tgt_v', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?bid=57'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ? but string value
it('http://org.com/path?prm=src_v -> http://org.com/path?&prm=tgt_v', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?bid=boo-bar'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=boo-bar-baz'
var uriActual = uri.setUriParam("bid","boo-bar-baz")
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ?& but string value
it('http://org.com/path?&prm=src_v -> http://org.com/path?&prm=tgt_v', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=5'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ? with other param
it('http://org.com/path?prm=src_v&other_p=other_v -> http://org.com/path?&prm=tgt_v&other_p=other_v', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?bid=5&other_p=other_v'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10&other_p=other_v'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ?& with other param
it('http://org.com/path?&prm=src_v&other_p=other_v -> http://org.com/path?&prm=tgt_v&other_p=other_v', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=5&other_p&other_v'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10&other_p&other_v'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ? with other param with fragment
it('http://org.com/path?prm=src_v&other_p=other_v#f -> http://org.com/path?&prm=tgt_v&other_p=other_v#f', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?bid=5&other_p=other_v#f'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10&other_p=other_v#f'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// has the url param existing after the ?& with other param with fragment
it('http://org.com/path?&prm=src_v&other_p=other_v#f -> http://org.com/path?&prm=tgt_v&other_p=other_v#f', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=5&other_p&other_v#f'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=10&other_p&other_v#f'
var uriActual = uri.setUriParam("bid",10)
assert.equal(uriActual, uriExpected);
});
// remove the param-name , param-value pair
it('http://org.com/path?prm=src_v&other_p=other_v#f -> http://org.com/path?&prm=tgt_v&other_p=other_v#f', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?bid=5&other_p=other_v#f'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&other_p=other_v#f'
var uriActual = uri.setUriParam("bid",null)
assert.equal(uriActual, uriExpected);
});
// remove the param-name , param-value pair
it('http://org.com/path?&prm=src_v&other_p=other_v#f -> http://org.com/path?&prm=tgt_v&other_p=other_v#f', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?&bid=5&other_p=other_v#f'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&other_p=other_v#f'
var uriActual = uri.setUriParam("bid",null)
assert.equal(uriActual, uriExpected);
});
// add a new param name , param value pair
it('http://org.com/path?prm=src_v&other_p=other_v#f -> http://org.com/path?&prm=tgt_v&other_p=other_v#f', function (){
var uri = 'http://site.eu:80/qto/view/devops_guide_doc?&other_p=other_v#f'
var uriExpected = 'http://site.eu:80/qto/view/devops_guide_doc?&other_p=other_v&bid=foo-bar#f'
var uriActual = uri.setUriParam("bid","foo-bar")
assert.equal(uriActual, uriExpected);
});
});
其他回答
在这里，我引用了Adil Malik的回答，并修正了我认为的3个问题。
/**
* Adds or updates a URL parameter.
*
* @param {string} url the URL to modify
* @param {string} param the name of the parameter
* @param {string} paramVal the new value for the parameter
* @return {string} the updated URL
*/
self.setParameter = function (url, param, paramVal){
// http://stackoverflow.com/a/10997390/2391566
var parts = url.split('?');
var baseUrl = parts[0];
var oldQueryString = parts[1];
var newParameters = [];
if (oldQueryString) {
var oldParameters = oldQueryString.split('&');
for (var i = 0; i < oldParameters.length; i++) {
if(oldParameters[i].split('=')[0] != param) {
newParameters.push(oldParameters[i]);
}
}
}
if (paramVal !== '' && paramVal !== null && typeof paramVal !== 'undefined') {
newParameters.push(param + '=' + encodeURI(paramVal));
}
if (newParameters.length > 0) {
return baseUrl + '?' + newParameters.join('&');
} else {
return baseUrl;
}
}
在URLSearchParams文档中，有一种非常干净的方法可以做到这一点，而且不会影响历史堆栈。
// URL: https://example.com?version=1.0
const params = new URLSearchParams(location.search);
params.set('version', 2.0);
window.history.replaceState({}, '', `${location.pathname}?${params}`);
// URL: https://example.com?version=2.0
类似地，删除参数
params.delete('version')
window.history.replaceState({}, '', `${location.pathname}?${params}`);
// URL: https://example.com?
Ben Alman有一个很好的jquery querystring/url插件，可以让你很容易地操纵querystring。
如要求-
点击这里进入他的测试页面
在firebug中，在控制台中输入以下内容
jQuery.param.querystring (window.location。报道中,x = 3&newValue = 100);
它将返回以下修改后的url字符串
http://benalman.com/code/test/js-jquery-url-querystring.html?a=3&b=Y&c=Z&newValue=100#n=1&o=2&p=3
注意，a的查询字符串值已从X更改为3，并添加了新值。
然后你可以使用新的url字符串，但你希望 使用文档。location = newUrl或改变一个锚链接等
2020解决方案:设置变量，如果传入null或undefined，则删除iti。
var setSearchParam = function(key, value) {
if (!window.history.pushState) {
return;
}
if (!key) {
return;
}
var url = new URL(window.location.href);
var params = new window.URLSearchParams(window.location.search);
if (value === undefined || value === null) {
params.delete(key);
} else {
params.set(key, value);
}
url.search = params;
url = url.toString();
window.history.replaceState({url: url}, null, url);
}
URL查询参数可以使用URLSearchParams和History接口轻松修改:
// Construct URLSearchParams object instance from current URL querystring.
var queryParams = new URLSearchParams(window.location.search);
// Set new or modify existing parameter value.
//queryParams.set("myParam", "myValue");
queryParams.set("rows", "10");
// Replace current querystring with the new one.
history.replaceState(null, null, "?"+queryParams.toString());
或者，我们可以使用pushState()方法来创建一个新的历史条目，而不是使用replaceState()修改当前的历史条目:
history.pushState(null, null, "?"+queryParams.toString());
https://zgadzaj.com/development/javascript/how-to-change-url-query-parameter-with-javascript-only
