原文参照：https://blog.csdn.net/zxcvn8866/article/details/52179709
返回JSON格式数据：
{"list1":[{"item":"0审计管理"},{"item":"1菜单管理"},{"item":"2订单管理"},{"item":"3合同管理"},{"item":"4物流管理"},{"item":"5行政管理"},{"item":"6人事管理"},{"item":"7购物管理"},{"item":"8批发管理"},{"item":"9安全管理"},{"item":"10账号管理"},[{"item":"11财务管理"}],{"item":"12其他管理"}],"list2":[{"key":"value001"},{"key":"value002"}],"list3":5555,"list4":{"key401":"val401","key402":"val402","key403":[{"key501":"val501","key502":"val502"},{"key601":"val602","key602":"val602"}]},"广西":{"南宁市":["青秀区","江南区","兴宁区","良庆区","邕宁区","西乡塘区","武鸣区"]},"dataCreater":"phpServer","dataCreateTime":"2018-06-02 18:41:34"} <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>原生js通过jsonp请求json数据</title> </head> <body> <p>原生js通过jsonp方式请求json数据实现跨域请求</p> <input type="text" id="url0" value="http://192.168.2.200:8080/jsonpserver.php?jsonpCallBack=myFeedBack" size="60"/> <input type="button" value="内网请求测试" οnclick="callJsonpServer(0)"/><br> <input type="text" id="url1" value="http://www.link2world.top/jsonpserver.php?jsonpCallBack=myFeedBack" size="60"/> <input type="button" value="外网请求测试" οnclick="callJsonpServer(1)"/><br> <div id="result"></div> <script> function callJsonpServer(arg){ var url=document.getElementById("url"+arg).value; var oldScript=document.getElementById("jsonpScript"); alert("url= "+url+"\n"+"oldScript= "+oldScript); if(oldScript){ alert("Remove old script ..."); document.body.removeChild(oldScript);//移除原来的，再添加一个新的，才能再次触发数据请求动作并执行myFeedBack(data)函数 } alert("Add a new script"); var newScript=document.createElement("script"); newScript.setAttribute("type","text/javascript"); newScript.setAttribute("src",url); newScript.setAttribute("id","jsonpScript"); document.body.appendChild(newScript); alert("Append the script to body ok"); } function myFeedBack(data){ alert("Got datas and to process..."); var resultZone=document.getElementById("result"); var results=""; for(var i in data){ results+=i+" : "+data[i]+"\n"; } resultZone.innerText=results; } </script> </body> </html>