ajax 关于IP地址查询的API

form {
  border: 1px solid #467;
  border-radius: 5px;
  font: 14px/1.4 "Helvetica Neue", Helvetica, Arial, sans-serif;
  overflow: hidden;
  padding:10px;
  width:300px;
  color:#456;
  margin:15px; 
}
div{
  margin:15px;
  color:#346;
}
button{
  display:inline-block;
  padding:6px 12px;
  margin-bottom:0; 
  line-height:1.4;
  text-align:center;
  cursor:pointer;
  border-radius:4px;
  border:1px solid transparent;
  color:#fff;
  background:#1aba9c;
}
input{
  display: inline-block;
  padding: 6px 12px;
  font-size: 14px;
  line-height: 1.42857143;
  color: #555;
  background-color: #fff;
  border: 1px solid #ccc;
  border-radius: 4px;
  -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
  box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
  -webkit-transition: border-color ease-in-out .15s,-webkit-box-shadow ease-in-out .15s;
  -o-transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
  transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
}



<form action="#">
  <p>输入ip地址查询相应的信息</p>
  <input id="iptext" type="text">
  <button type="submit">查询</button>
</form>

<div></div>



<!-- 推荐开源CDN来选取需引用的外部JS //-->
<script type="text/javascript" src="http://cdn.gbtags.com/jquery/1.11.1/jquery.min.js"></script>


/*Javascript代码片段*/
$(function(){
  
 $("form").submit(function(e){
   e.preventDefault();
   var ip=$("#iptext").val(),
       headers = {"apikey": "5292d6abaf0ec95c2b7924551e50668f"};
       url="http://apis.baidu.com/apistore/iplookupservice/iplookup?ip="+ip;
   $.ajax({
       url:url, 
       method: "GET",  
       headers: headers, 
       dataType: "json",
       success: function(data){
          var info=data.retData;   
          $.each(info,function(key,value){
              $("div").append(key+":"+value+"<br/>");
          
          });
           
         }

   })
   
   
 });
  

});

AJAX技术