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這里主要考慮的是關(guān)閉瀏覽器時(shí)銷(xiāo)毀sessoin。

//關(guān)閉瀏覽器銷(xiāo)毀Seesion
    var xmlHttp;
    function createXMLHttpRequest()
   {
      //IE
      if (window.ActiveXObject)
      {
       xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
      }
      //Other
      else if (window.XMLHttpRequest)
      {
       xmlHttp = new XMLHttpRequest();
      }
   }
   function destorySession()
   {
                       try{
                        createXMLHttpRequest();
                        var url = "destorysession.jsp";
                        xmlHttp.open("POST", url, false);
                        xmlHttp.send(null);
                        var result = xmlHttp.responseText;
                     }
                     catch(e)
                    {
                      alert("銷(xiāo)毀Session異常！");
                     }
    }

destorysession.jsp: