jsonp实现下拉搜索
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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script type="text/javascript"> //curl "https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=bbb&cb= //curl "https://suggest.taobao.com/sug?code=utf-8&q=aaa&callback= window.onload = function(){ var oTxt = document.getElementById("txt"); var oBtn = document.getElementById("btn"); oTxt.onkeyup = function(){ var sc = document.createElement("script"); //sc.src = "https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=" + oTxt.value + "&cb=fn"; sc.src = "https://suggest.taobao.com/sug?code=utf-8&q="+oTxt.value + "&callback=fn"; document.getElementsByTagName("head")[0].appendChild(sc); } } //全局函数 function fn(str){ //console.log(str.s); var oUl = document.getElementById("ul1"); oUl.innerHTML = ""; for(var i = 0; i < str.result.length; i ++){ var li = document.createElement("li"); li.innerHTML = str.result[i]; oUl.appendChild(li); } } </script> </head> <body> <input type="text" name="txt" id="txt" value="" /> <input type="button" name="btn" id="btn" value="搜索" /> <ul id="ul1"> </ul> </body> </html>
(本例调用淘宝搜索接口)效果如下
引用的搜索接口不一样,则所需要的内容在str中的位置不一样,故截取名称不同。如下,调用百度搜索接口
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <input type="text" name="" id=""> <ul></ul> </head> <body> <script> var oBtn = document.getElementsByTagName(\'input\')[0]; oBtn.onkeyup = function() { var st = document.createElement(\'script\'); st.src = "https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=" + oBtn.value + "&cb=fnn"; document.getElementsByTagName(\'head\')[0].appendChild(st); } function fnn(str) { console.log(str); var oUl = document.getElementsByTagName(\'ul\')[0]; oUl.innerHTML = ""; for (var i = 0; i < str.s.length; i++) { var oLi = document.createElement("li"); oLi.innerHTML = str.s[i]; oUl.appendChild(oLi); } } </script> </body> </html>
效果如下
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