清除浏览器缓存

meta方法

//不缓存

<META HTTP-EQUIV="pragma" CONTENT="no-cache">

<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">

<META HTTP-EQUIV="expires" CONTENT="0">

jquery ajax清除浏览器缓存

方式一:用ajax请求服务器最新文件,并加上请求头If-Modified-Since和Cache-Control:

$.ajax({

url:'www.haorooms.com',

dataType:'json',

data:{},

beforeSend :function(xmlHttp){

      xmlHttp.setRequestHeader("If-Modified-Since","0");

      xmlHttp.setRequestHeader("Cache-Control","no-cache");

  },

success:function(response){

      //... ....

  } ,

async:false ;

});

 

方法二,直接用cache:false

$.ajax({

  url:'www.haorooms.com',

  dataType:'json',

  data:{},

  cache:false,

  ifModified :true ,

  success:function(response){

      //... ....

      }

  ,async:false ;

});

方法三:用随机数

URL?ran=" + Math.random();

posted @ 2016-08-11 12:13  jeffery1010  Views(238)  Comments(0Edit  收藏  举报