blocks|key|1241928|text|function+getURLParameter(name)+{
++++return+decodeURI(
++++++++(RegExp(name+%2B+'='+%2B+'(.%2B?)(&%7C$)').exec(location.search)%7C%7C[,null])[1]
++++);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1241929|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>function getURLParameter(name) {
 return decodeURI(
 (RegExp(name + '=' + '(.+?)(&amp;|$)').exec(location.search)||[,null])[1]
 );
}
</code></pre>

blocks|key|1456829|text|下面是我从这里的评论中创建的内容，以及修复没有提到的bug(例如实际返回null，而不是'null')：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1456830|function+getURLParameter(name)+{
++++return+decodeURIComponent((new+RegExp('[?%7C&]'+%2B+name+%2B+'='+%2B+'([%5E&;]%2B?)(&%7C#%7C;%7C$)').exec(location.search)%7C%7C[,""])[1].replace(/\%2B/g,+'%2520'))%7C%7Cnull;
}|code-block|syntax|javascript|1456831|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Below is what I have created from the comments here, as well as fixing bugs not mentioned (such as actually returning null, and not 'null'):

<pre><code>function getURLParameter(name) {
 return decodeURIComponent((new RegExp('[?|&amp;]' + name + '=' + '([^&amp;;]+?)(&amp;|#|;|$)').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null;
}
</code></pre>

blocks|key|1457010|text|需要添加i参数以使其不区分大小写：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1457011|++function+getURLParameter(name)+{
++++return+decodeURIComponent(
++++++(RegExp(name+%2B+'='+%2B+'(.%2B?)(&%7C$)',+'i').exec(location.search)+%7C%7C+[,+""])[1]
++++);
++}|code-block|syntax|javascript|1457012|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Need to add the i parameter to make it case insensitive:

<pre><code> function getURLParameter(name) {
 return decodeURIComponent(
 (RegExp(name + '=' + '(.+?)(&amp;|$)', 'i').exec(location.search) || [, ""])[1]
 );
 }
</code></pre>

blocks|key|1242275|text|在阅读完所有答案后，我最终得到了这个版本，它有一个使用参数作为标志的第二个函数|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1242276|function+getURLParameter(name)+{
++++return+decodeURIComponent((new+RegExp('[?%7C&]'+%2B+name+%2B+'='+%2B+'([%5E&;]%2B?)(&%7C#%7C;%7C$)','i').exec(location.search)%7C%7C[,""])[1].replace(/\%2B/g,+'%2520'))%7C%7Cnull;
}

function+isSetURLParameter(name)+{
++++return+(new+RegExp('[?%7C&]'+%2B+name+%2B+'(?:[=%7C&%7C#%7C;%7C]%7C$)','i').exec(location.search)+!==+null)
}|code-block|syntax|javascript|1242277|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

After reading all of the answers I ended up with this version with + a second function to use parameters as flags

<pre><code>function getURLParameter(name) {
 return decodeURIComponent((new RegExp('[?|&amp;]' + name + '=' + '([^&amp;;]+?)(&amp;|#|;|$)','i').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null;
}

function isSetURLParameter(name) {
 return (new RegExp('[?|&amp;]' + name + '(?:[=|&amp;|#|;|]|$)','i').exec(location.search) !== null)
}
</code></pre>

blocks|key|1242000|text|$.urlParam+=+function(name){
++var+results+=+new+RegExp('[\\?&]'+%2B+name+%2B+'=([%5E&#]*)').exec(top.window.location.href);+
++return+(results+!==+null)+?+results[1]+:+0;
}

$.urlParam("key");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1242001|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$.urlParam = function(name){
 var results = new RegExp('[\\?&amp;]' + name + '=([^&amp;#]*)').exec(top.window.location.href); 
 return (results !== null) ? results[1] : 0;
}

$.urlParam("key");
</code></pre>

blocks|key|1242354|text|这里有很多错误代码，正则表达式解决方案非常慢。我找到了一个解决方案，它比regex快20倍，而且非常简单：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1242355|++++/*
++++*+++@param++++++string++++++parameter+to+return+the+value+of.
++++*+++@return+++++string++++++value+of+chosen+parameter,+if+found.
++++*/
++++function+get_param(return_this)
++++{
++++++++return_this+=+return_this.replace(/\?/ig,+"").replace(/=/ig,+"");+//+Globally+replace+illegal+chars.

++++++++var+url+=+window.location.href;+++++++++++++++++++++++++++++++++++//+Get+the+URL.
++++++++var+parameters+=+url.substring(url.indexOf("?")+%2B+1).split("&");++//+Split+by+"param=value".
++++++++var+params+=+[];++++++++++++++++++++++++++++++++++++++++++++++++++//+Array+to+store+individual+values.

++++++++for(var+i+=+0;+i+<+parameters.length;+i%2B%2B)
++++++++++++if(parameters[i].search(return_this+%2B+"=")+!=+-1)
++++++++++++++++return+parameters[i].substring(parameters[i].indexOf("=")+%2B+1).split("%2B");

++++++++return+"Parameter+not+found";
++++}

console.log(get_param("parameterName"));|code-block|syntax|javascript|1242356|正则表达式不是万能的解决方案，对于这种类型的问题，简单的字符串操作可以更有效地工作。Code+source。|offset|length|1242357|entityMap|0|LINK|mutability|MUTABLE|url|http://www.texodigital.com/blog/JavaScript/javascript-url-parameters^0|0|0|16|B|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

There's a lot of buggy code here and regex solutions are very slow. I found a solution that works up to 20x faster than the regex counterpart and is elegantly simple:

<pre><code> /*
 * @param string parameter to return the value of.
 * @return string value of chosen parameter, if found.
 */
 function get_param(return_this)
 {
 return_this = return_this.replace(/\?/ig, "").replace(/=/ig, ""); // Globally replace illegal chars.

 var url = window.location.href; // Get the URL.
 var parameters = url.substring(url.indexOf("?") + 1).split("&amp;"); // Split by "param=value".
 var params = []; // Array to store individual values.

 for(var i = 0; i &lt; parameters.length; i++)
 if(parameters[i].search(return_this + "=") != -1)
 return parameters[i].substring(parameters[i].indexOf("=") + 1).split("+");

 return "Parameter not found";
 }

console.log(get_param("parameterName"));
</code></pre>

Regex is not the be-all and end-all solution, for this type of problem simple string manipulation can work a huge amount more efficiently. <a href="http://www.texodigital.com/blog/JavaScript/javascript-url-parameters" rel="nofollow">Code source</a>.

blocks|key|1242423|text|<script+type="text/javascript">
function+getURLParameter(name)+{
++++++++return+decodeURIComponent(
++++++++++++(location.search.toLowerCase().match(RegExp("[?%7C&]"+%2B+name+%2B+'=(.%2B?)(&%7C$)'))+%7C%7C+[,+null])[1]
++++++++);
++++}

</script>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1242424|getURLParameter(id)或getURLParameter(Id)的工作方式相同：)|unstyled|offset|length|style|CODE|1242425|entityMap^0|0|0|J|K|J|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]|$G|Q|H|R|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|S|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>&lt;script type="text/javascript"&gt;
function getURLParameter(name) {
 return decodeURIComponent(
 (location.search.toLowerCase().match(RegExp("[?|&amp;]" + name + '=(.+?)(&amp;|$)')) || [, null])[1]
 );
 }

&lt;/script&gt;
</code></pre>

<code>getURLParameter(id)</code> or <code>getURLParameter(Id)</code> Works the same : )

blocks|key|1242445|text|用于获取存储在url中的动态变量作为参数并将其存储为JavaScript变量以便与脚本一起使用的jQuery代码片段：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1242446|$.urlParam+=+function(name){
++++var+results+=+new+RegExp('[\?&]'+%2B+name+%2B+'=([%5E&#]*)').exec(window.location.href);
++++if+(results==null){
+++++++return+null;
++++}
++++else{
+++++++return+results[1]+%7C%7C+0;
++++}
}

example.com?param1=name&param2=&id=6

$.urlParam('param1');+//+name
$.urlParam('id');++++++++//+6
$.urlParam('param2');+++//+null

//example+params+with+spaces
http://www.jquery4u.com?city=Gold+Coast
console.log($.urlParam('city'));++
//output:+Gold%2520Coast

console.log(decodeURIComponent($.urlParam('city')));+
//output:+Gold+Coast|code-block|syntax|javascript|1242447|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

jQuery code snippet to get the dynamic variables stored in the url as parameters and store them as JavaScript variables ready for use with your scripts:

<pre><code>$.urlParam = function(name){
 var results = new RegExp('[\?&amp;]' + name + '=([^&amp;#]*)').exec(window.location.href);
 if (results==null){
 return null;
 }
 else{
 return results[1] || 0;
 }
}

example.com?param1=name&amp;param2=&amp;id=6

$.urlParam('param1'); // name
$.urlParam('id'); // 6
$.urlParam('param2'); // null

//example params with spaces
http://www.jquery4u.com?city=Gold Coast
console.log($.urlParam('city')); 
//output: Gold%20Coast

console.log(decodeURIComponent($.urlParam('city'))); 
//output: Gold Coast
</code></pre>

blocks|key|1241949|text|function+getURLParameters(paramName)+
{
++++++++var+sURL+=+window.document.URL.toString();++
++++if+(sURL.indexOf("?")+>+0)
++++{
+++++++var+arrParams+=+sURL.split("?");+++++++++
+++++++var+arrURLParams+=+arrParams[1].split("&");++++++
+++++++var+arrParamNames+=+new+Array(arrURLParams.length);
+++++++var+arrParamValues+=+new+Array(arrURLParams.length);+++++
+++++++var+i+=+0;
+++++++for+(i=0;i<arrURLParams.length;i%2B%2B)
+++++++{
++++++++var+sParam+=++arrURLParams[i].split("=");
++++++++arrParamNames[i]+=+sParam[0];
++++++++if+(sParam[1]+!=+"")
++++++++++++arrParamValues[i]+=+unescape(sParam[1]);
++++++++else
++++++++++++arrParamValues[i]+=+"No+Value";
+++++++}

+++++++for+(i=0;i<arrURLParams.length;i%2B%2B)
+++++++{
++++++++++++++++if(arrParamNames[i]+==+paramName){
++++++++++++//alert("Param:"%2BarrParamValues[i]);
++++++++++++++++return+arrParamValues[i];
+++++++++++++}
+++++++}
+++++++return+"No+Parameters+Found";
++++}

}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1241950|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>function getURLParameters(paramName) 
{
 var sURL = window.document.URL.toString(); 
 if (sURL.indexOf("?") &gt; 0)
 {
 var arrParams = sURL.split("?"); 
 var arrURLParams = arrParams[1].split("&amp;"); 
 var arrParamNames = new Array(arrURLParams.length);
 var arrParamValues = new Array(arrURLParams.length); 
 var i = 0;
 for (i=0;i&lt;arrURLParams.length;i++)
 {
 var sParam = arrURLParams[i].split("=");
 arrParamNames[i] = sParam[0];
 if (sParam[1] != "")
 arrParamValues[i] = unescape(sParam[1]);
 else
 arrParamValues[i] = "No Value";
 }

 for (i=0;i&lt;arrURLParams.length;i++)
 {
 if(arrParamNames[i] == paramName){
 //alert("Param:"+arrParamValues[i]);
 return arrParamValues[i];
 }
 }
 return "No Parameters Found";
 }

}
</code></pre>

blocks|key|1456900|text|我创建了一个简单的函数来获取JavaScript中的URL参数，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1456901|.....58e/web/viewer.html?page=*17*&getinfo=33


function+buildLinkb(param)+{
++++var+val+=+document.URL;
++++var+url+=+val.substr(val.indexOf(param))++
++++var+n=parseInt(url.replace(param%2B"=",""));
++++alert(n%2B1);+
}
buildLinkb("page");|code-block|syntax|javascript|1456902|输出：18|offset|length|style|CODE|1456903|entityMap^0|0|0|3|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I created a simple function to get URL parameter in JavaScript from a URL like this:

<pre><code>.....58e/web/viewer.html?page=*17*&amp;getinfo=33


function buildLinkb(param) {
 var val = document.URL;
 var url = val.substr(val.indexOf(param)) 
 var n=parseInt(url.replace(param+"=",""));
 alert(n+1); 
}
buildLinkb("page");
</code></pre>

OUTPUT: <code>18</code>

blocks|key|1242160|text|以防你们有像localhost/index.xsp?a=1这样的url，你需要得到参数，而不是散列。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1242161|var+vars+=+[],+hash,+anchor;
var+q+=+document.URL.split('?')[1];
if(q+!=+undefined){
++++q+=+q.split('&');
++++for(var+i+=+0;+i+<+q.length;+i%2B%2B){
++++++++hash+=+q[i].split('=');
++++++++anchor+=+hash[1].split('#');
++++++++vars.push(anchor[0]);
++++++++vars[hash[0]]+=+anchor[0];
++++}
}|code-block|syntax|javascript|1242162|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Just in case you guys have the url like localhost/index.xsp?a=1#something and you need to get the param not the hash.

<pre><code>var vars = [], hash, anchor;
var q = document.URL.split('?')[1];
if(q != undefined){
 q = q.split('&amp;');
 for(var i = 0; i &lt; q.length; i++){
 hash = q[i].split('=');
 anchor = hash[1].split('#');
 vars.push(anchor[0]);
 vars[hash[0]] = anchor[0];
 }
}
</code></pre>

blocks|key|1457189|text|对@pauloppenheim的答案稍作修改，因为它不能正确处理参数名称，因为参数名称可能是其他参数名称的一部分。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1457190|例如:如果你有"appenv“和"env”参数，重新定义"env“的值可以获得"appenv”的值。|1457191|修复：|1457192|var+urlParamVal+=+function+(name)+{
++++var+result+=+RegExp("(&%7C\\?)"+%2B+name+%2B+"=(.%2B?)(&%7C$)").exec(location.search);
++++return+result+?+decodeURIComponent(result[2])+:+"";
};|code-block|syntax|javascript|1457193|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Slight modification to the answer by @pauloppenheim , as it will not properly handle parameter names which can be a part of other parameter names.

Eg: If you have "appenv" &amp; "env" parameters, redeaing the value for "env" can pick-up "appenv" value.

Fix:

<pre><code>var urlParamVal = function (name) {
 var result = RegExp("(&amp;|\\?)" + name + "=(.+?)(&amp;|$)").exec(location.search);
 return result ? decodeURIComponent(result[2]) : "";
};
</code></pre>

blocks|key|1456929|text|这可能会有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1456930|<script+type="text/javascript">
++++$(document).ready(function(){
++++++++alert(getParameterByName("third"));
++++});
++++function+getParameterByName(name){
++++++++var+url+++++=+document.URL,
++++++++++++count+++=+url.indexOf(name);
++++++++++++sub+++++=+url.substring(count);
++++++++++++amper+++=+sub.indexOf("&");+

++++++++if(amper+==+"-1"){
++++++++++++var+param+=+sub.split("=");
++++++++++++return+param[1];
++++++++}else{
++++++++++++var+param+=+sub.substr(0,amper).split("=");
++++++++++++return+param[1];
++++++++}

++++}
</script>|code-block|syntax|javascript|1456931|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This may help.

<pre><code>&lt;script type="text/javascript"&gt;
 $(document).ready(function(){
 alert(getParameterByName("third"));
 });
 function getParameterByName(name){
 var url = document.URL,
 count = url.indexOf(name);
 sub = url.substring(count);
 amper = sub.indexOf("&amp;"); 

 if(amper == "-1"){
 var param = sub.split("=");
 return param[1];
 }else{
 var param = sub.substr(0,amper).split("=");
 return param[1];
 }

 }
&lt;/script&gt;
</code></pre>

I'm looking for a jQuery plugin that can get URL parameters, and support this search string without outputting the JavaScript error: "malformed URI sequence". If there isn't a jQuery plugin that supports this, I need to know how to modify it to support this.

<pre><code>?search=%E6%F8%E5
</code></pre>

The value of the URL parameter, when decoded, should be:

<pre><code>æøå
</code></pre>

(the characters are Norwegian).

I don't have access to the server, so I can't modify anything on it.

Get escaped URL parameter

我正在寻找一个jQuery插件，可以获得网址参数，并支持此搜索字符串，而不输出JavaScript错误：“错误的URI序列”。如果没有支持它的jQuery插件，我需要知道如何修改它来支持它。?search=%E6%F8%E5URL参数的值在解码时应为：æøå(字符是挪威语)。我没有访问服务器的权限，所以我不能修改服务器上的任何内容。

问获取转义URL参数
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回答 13

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问获取转义URL参数EN

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问获取转义URL参数
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