asp jquery ajxs json和jsonp跨域请求

来源：互联网发布：2017年新出的网络剧编辑：程序博客网时间：2024/04/30 11:33

一、前台Ajxs json请求带参数

<script type="text/javascript">  $.getJSON("test.asp",{user:'admin',pass:'123456'}, function(json){alert(json[0].user)alert(json[0].pass)});</script>

后台接收并返回实例

user = request.QueryString("user")pass = request.QueryString("pass")add = "[{""user"":"""+ user +""",""pass"":"""+ pass +"""}]"response.Write(add)

二、前台Ajxs json请求不带参数

<script type="text/javascript"> $.getJSON("test.asp", function(json){alert(json.length)alert(json[0].id)alert(json[0].name)alert(json[1].id)alert(json[1].name)});</script>

后台接收并返回实例

dim addadd = "[{""id"":""123"",""name"":""admin""},{""id"":""456"",""name"":""bxsc""}]"response.Write(add)

三、Ajxs jsonpt跨域请求

<script type="text/javascript">      $(document).ready(function(){        $.ajax({             url:'http://localhost:8080/test.asp',             dataType:"jsonp",             jsonp:"jsonpcallback",             jsonpCallback: "jsonpcallback",             success:function(data){                 var $ul = $("<ul></ul>");                 $.each(data,function(i,v){                     $("<li/>").text(v["id"] + " " + v["name"]).appendTo($ul)                 });                 $("#res").append($ul);             }        });    });</script><span id="res"></span>

后台

jsonp = request.QueryString("jsonpcallback")str = "[{""id"":""1"",""name"":""测试1""},{""id"":""2"",""name"":""测试2""}]"str = jsonp + "(" +str+")"response.Write(str)

四、跨域带参数请求

<span id="myform"></span><script type="text/javascript">      $(document).ready(function(){$.getJSON("http://localhost:8080/test.asp?jsonpcallback=?",{user:'administrator',pass:'1314778'},function(json){    var msg = '';    if(json){   //msg = "<div id='result'><strong>提交成功！</strong><br/>姓名："+json[0].user+"<br/>密码："+json[0].pass+"</div>"   msg = "<div id='result'><strong>提交成功！</strong><br/>姓名："+json.user+"<br/>密码："+json.pass+"</div>"}else{   msg = "服务器忙，请稍候再试！";}$("#myform").after(msg);});    });</script>

jsonp = request.QueryString("jsonpcallback")user = request.QueryString("user")pass = request.QueryString("pass")'str = "[{""user"":"""+ user +""",""pass"":"""+ pass +"""}]"str = "{""user"":"""+ user +""",""pass"":"""+ pass +"""}"str = jsonp + "(" +str+")"response.Write(str)

使用eval解析JSON对象

var json=eval_r("({sitename:'dreamdu',sitedate:new Date(1980, 12, 17, 12, 0, 0)})");document.write(json.sitename);document.write(json.sitedate);

结果:
dreamdu
Sat Jan 17 12:00:00 UTC+0800 1981
提示: 由于eval可以任意执行JavaScript代码，因此可能带来安全问题

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