JavaScript gets sample code for URL parameters and parameter values

Source: Internet
Author: User
Tags contains split

  This article is mainly about JavaScript to get URL parameters and parameter values of the sample code is introduced, need friends can come to the reference, I hope to help you.

  Code as follows: <script>                   function Goto_url (URL) {                      var new_url = "http://shop.usteel.com/index.php?app= List_release ";                       var d_date  = getparameter ("date", url);                       if (d_date!= ') {      &NBSP ;                   New_url = "&" +d_date;                                   & nbsp         var species  = getparameter ("species", url);                       if (species!= ') {      &NBSP ;                   New_url = "& " +species;                                   & nbsp           window.open (New_url);                                   & nbsp  //javascript get the specified parameters and their corresponding values                     function Getparamete R (parastr, URL)                     {                        var result = "";                        //Get URL All parameters list data                         var str = "&" + Url.split ("?") [1];                         var paraname = parastr + "=";       &NBsp                /determine if the parameters to be acquired               &N Bsp         if (Str.indexof ("&" +paraname)!=-1)                                                   & nbsp If you want to get the parameter to the end also contains "&"                           &NBSP ; if (str.substring str.indexof (paraname), str.length) indexOf ("&")!=-1)                             {                  & nbsp            //Get the parameters to get to the end of the strings                                 var tmpstr=str.substring (Str.indexof (paraname), str.length);                                //intercept character &N between the start of the parameter and the nearest "&" Occurrence Bsp                               Result=tmpstr.sub STR (Tmpstr.indexof (paraname), Tmpstr.indexof ("&")-tmpstr.indexof (Paraname));                               {    & nbsp                       else           &NBSP ;                 {                  & nbsp               result=str.substring (Str.indexof (paraname), str.length);                               {    & nbsp                                            else     &NB Sp                                   & nbsp             result= "";                          }         & nbsp                 return (Result.replace ("&", ""));                                   & nbsp       </script>   The following example is complete by testing the   code as follows: <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">       <html xmlns=" http://www.w3.org/1999/xhtml ">       <head>   &NB Sp   <meta http-equiv= "COntent-type "content=" text/html; charset=gb2312 "/>       <title>javascript get URL parameters and parameter values </title>       < Script type= "Text/javascript" >       <!--      var url = "http://www.baidu.com/?age=2 5&k=1&site=asp&abc=123; "       //javascript get the specified parameters and their corresponding values       function GetParameter (parastr, url)       {          var result = "";          //Get URL all parameter list data           var str = "&" + Url.split ("?") [1];           var paraname = parastr + "=";          //determining whether the parameters to be obtained are in           if (Str.indexof ("&" +paraname)!=-1 )           {             //If the parameter to get to the end also contains "&"   & nbsp           if (str.substring (Str.indexof (PARaname), str.length). IndexOf ("&")!=-1)               {        & nbsp        //Get the parameters to get to the end of the string  ,  ,             var tmpstr=st R.substring (Str.indexof (paraname), str.length);                  //intercept the characters from the start of the parameter to the nearest "&" occurrence of the character         &N Bsp         RESULT=TMPSTR.SUBSTR (Tmpstr.indexof (Paraname), Tmpstr.indexof ("&")-tmpstr.indexof ( Paraname));                               else   &NB Sp           {                    Result=str.subs Tring (Str.indexof (paraname), str.length);                          }             Else           {              result= "no this parameter";            }             return (Result.replace ("&", ""));        }        //calling method: var variable name = getparameter ("parameter name to get", url address)     &N Bsp var r = getparameter ("Age", url);        //test output, the result is: site=popasp       alert (R);      //According to the results obtained can use       var pname = r.split ("=") [0]; Get parameter name       var pvalue = r.split ("=") [1]; Get parameter value        //test output:       alert ("Parameter name:" + pname + "NN" + "parameter value:" + pvalue);        //Other practical applications:      //You can implement the functions you want to implement with the following methods as needed;      //var hostname = Location.hostname; Gets the current domain name (does not contain http://)      //var localurl = location.href;  //Get the current complete URL address information (including http://, domain name, path, specific file and all pass parameters)       var referurl = Document.referrer; Get the complete URL information on the previous page (including http://, domain name, path, specific file and all pass parameters)        //-->       </script> & nbsp     </head>         <body>       </body>     &NBS P </html>     
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