Question

我（javascript等的新手）制作了以下网页以获取我的Google融合表格中的行数。我接受结果的div显示＆＃34; 0＆＃34;表示错误。有什么建议？（我也不确定我要添加哪些链接

<!DOCTYPE html>
<html>

<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>test count</title>

<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> 
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.3/themes/smoothness/jquery-ui.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.3/jquery-ui.min.js"></script>
<script type="text/javascript">

function dataHandler(resp) 
{
  try
  {$('#result').html((resp.table.rows[1][1]));}
  catch(err)
  {$('#result').html('0');}
};

function getData() 
{
  var tableId = '1G2iUAdGUAcEGCTfDykKnURZvY1QFe6pxoBKqi8A4';
  var queryUrlHead = 'http://www.google.com/fusiontables/api/query?sql=';
  var queryUrlTail = '&jsonCallback=getData';
  var query = "SELECT COUNT() FROM " + tableId ;
  window.alert(queryUrlHead + query + queryUrlTail);
  var queryurl = encodeURI(queryUrlHead + query + queryUrlTail);
  var jqxhr = $.get(queryurl, dataHandler, "jsonp");
};

function initialize() 
{
  getData();
  dataHandler();
};

</script>
</head>

<body onload="initialize()">
<div id="result">xx</div>
</body>

</html>

Answer 1

API的网址不正确，应为

https://www.googleapis.com/fusiontables/v2/query

FusionTable-Queries至少需要一个有效密钥
可通过resp.rows[0][0]
在initialize（）

dataHandler();

修正脚本（插入您自己的有效密钥）：

function dataHandler(resp) 
{  
  try
  {$('#result').html((resp.rows[0][0]));}
  catch(err)
  {$('#result').html('0');}
};

function getData() 
{ var yourApiKey='insert your key here';
  var tableId = '1G2iUAdGUAcEGCTfDykKnURZvY1QFe6pxoBKqi8A4';
  var queryUrlHead = 'https://www.googleapis.com/fusiontables/v2/query?sql=';
  var queryUrlTail = '&jsonCallback=getData&key='+yourApiKey;
  var query = encodeURIComponent("SELECT COUNT() FROM " + tableId) ;
  var queryurl = queryUrlHead + query + queryUrlTail;
  var jqxhr = $.get(queryurl, dataHandler, "jsonp");
};

function initialize() 
{
  getData();

};

为什么我的Google融合表中没有行数？

1 个答案: