将后台取到的数据保存到本地存储localStorage

1.首先从后台取数据。  

function UsertypeSelect(userid){ $.ajax({ url: "staticOperationCtrl/GetSelectData", data: { "userid":userId }, success: function(data) { if (data != "") { var obj = eval(data); //后台给返的数据 localStorage['UsertypeSelect']=JSON.stringify(obj); //给localStorage里面添加一个key为UsertypeSelect的字段，并且其value值为obj }; }, error: function(XMLHttpRequest, textStatus, errorThrown) { ShowQuestDataErrMsg(); } }); }

localStorage['UsertypeSelect']=JSON.stringify(obj);

//给localStorage里面添加一个key为UsertypeSelect的字段，并且其value值为obj 

2.第二次要用相同的数据时，首先从localStorage取数据，如果local没有再去后台取数据  

if(localStorage.UsertypeSelect !='') { var gettpl = document.getElementById('getUsertypeTpl').innerHTML; laytpl(gettpl).render(JSON.parse(localStorage.UsertypeSelect), function(html) { document.getElementById('usertypeSelectEdit').innerHTML = html; });//这里是本次访问接口时要做的事 }else{ $.ajax({ url: "staticOperationCtrl/GetSelectData", data: { "kind":"role", "roleid":JSON.parse(localStorage.roleData).id,//此处的值也是从localStorage取出的。 "userid":localStorage.userId }, success: function(data) { if (data != "") { var obj = eval(data); var gettpl = document.getElementById('getUsertypeTpl').innerHTML; laytpl(gettpl).render(obj, function(html) { document.getElementById('usertypeSelectEdit').innerHTML = html; }); }; }, error: function(XMLHttpRequest, textStatus, errorThrown) { ShowQuestDataErrMsg(); } }); } } JSON.parse(localStorage.UsertypeSelect), function(html) { document.getElementById('usertypeSelectEdit').innerHTML = html; });//这里是本次访问接口时要做的事 }else{ $.ajax({ url: "staticOperationCtrl/GetSelectData", data: { "kind":"role", "roleid":JSON.parse(localStorage.roleData).id,//此处的值也是从localStorage取出的。 "userid":localStorage.userId }, success: function(data) { if (data != "") { var obj = eval(data); var gettpl = document.getElementById('getUsertypeTpl').innerHTML; laytpl(gettpl).render(obj, function(html) { document.getElementById('usertypeSelectEdit').innerHTML = html; }); }; }, error: function(XMLHttpRequest, textStatus, errorThrown) { ShowQuestDataErrMsg(); } }); } }