function btnShowJsonData() { xmlHttp = new XMLHttpRequest(); xmlHttp.open("get", "AddJsonData.aspx"); xmlHttp.send(); var header = "<table><tr><th>封面</th><th>书名</th><th>价格</th><th>编号</th></tr>"; var content = ""; xmlHttp.onreadystatechange = function () { if (xmlHttp.readyState == 4 && xmlHttp.status == 200) { var getJsonData = xmlHttp.responseText; //获取到json数据 var bookTable = eval("(" + getJsonData + ")"); //获取到json数据字段 for (var i = 0; i < bookTable.recoreds.length; i++) {//循环读取json数据里面的一个recoreds数组 var row = "<tr><td><img src='BookCovers/" + bookTable.recoreds[i].isbn + ".jpg'</td><td>" + bookTable.recoreds[i].title + "</td><td>" + bookTable.recoreds[i].unitprice + "</td><td>"+bookTable.recoreds[i].id+"</td></tr>"; content += row; } var end = "</table>"; var all = header + content + end; document.getElementById("test").innerHTML = all; } } } bookTable.recoreds.length这样子的
var json01={ url:'http://jualbs.me/', title:'潔靜精微', fav:'休息' }; var json02={};function getJsonLength(json){ var len=0; if(Boolean(json)){ for(i in json)len++; } return len; }
xmlHttp = new XMLHttpRequest();
xmlHttp.open("get", "AddJsonData.aspx");
xmlHttp.send();
var header = "<table><tr><th>封面</th><th>书名</th><th>价格</th><th>编号</th></tr>";
var content = "";
xmlHttp.onreadystatechange = function () {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
var getJsonData = xmlHttp.responseText; //获取到json数据
var bookTable = eval("(" + getJsonData + ")"); //获取到json数据字段
for (var i = 0; i < bookTable.recoreds.length; i++) {//循环读取json数据里面的一个recoreds数组
var row = "<tr><td><img src='BookCovers/" + bookTable.recoreds[i].isbn + ".jpg'</td><td>" + bookTable.recoreds[i].title + "</td><td>" + bookTable.recoreds[i].unitprice + "</td><td>"+bookTable.recoreds[i].id+"</td></tr>";
content += row;
}
var end = "</table>";
var all = header + content + end;
document.getElementById("test").innerHTML = all;
}
}
}
bookTable.recoreds.length这样子的
url:'http://jualbs.me/',
title:'潔靜精微',
fav:'休息'
};
var json02={};function getJsonLength(json){
var len=0;
if(Boolean(json)){
for(i in json)len++;
}
return len;
}