sessionStorage.getItem(key):獲取指定key本地存儲的值
sessionStorage.setItem(key,value)：將value存儲到key字段
js代碼：
function isWeiXin(){
var ua = window.navigator.userAgent.toLowerCase();
if(ua.match(/MicroMessenger/i) == 'micromessenger'){
return true;
}else{
return false;
}
}
function getTop(){
if(window.sessionStorage && isWeiXin()){
return parseInt(sessionStorage.getItem(storagePrefix+"top"));
}
}
function setTop(top){
if(window.sessionStorage && isWeiXin()){
sessionStorage.setItem(storagePrefix + "top",top);
}
}
//若是遇到ajax分頁，page數值本地存儲一下
function getPageNum() {
var page = globalPage;
if (window.sessionStorage && isWeiXin()) {
var storagePage = sessionStorage.getItem(storagePrefix + "page");
if (storagePage) {
page = storagePage;
}
}
return parseInt(page);
}
function setPageNum(pageNum) {
globalPage = pageNum;
if (window.sessionStorage && isWeiXin()) {
sessionStorage.setItem(storagePrefix + "page", pageNum);
}
}
項目中運用了iscroll插件，所以top值是在onScrollEnd的時候取得this.y的值；
//全局定義storagePrefix
var storagePrefix = window.location.href;
window.onload = function(){
var top;
//微信中做定位，獲取之前已經請求的頁面，一次取出所有的數據
if(window.sessionStorage && isWeiXin()){
top = getTop();
//下面利用ajax將頁面重新渲染一下
.ajax.......(這邊的代碼就不寫了，各位童鞋都會的。。。)
}
}