The issue is that it's hard to find a free source for the data. This is mostly due to the fact that this data is sold for money by the trading places -- you're not asking for open source beer, you're asking for free beer.
The next big place for this data is probably Google (http://www.google.com/finance/). As with most Google services there ought to be an API where you can query the stocks but I couldn't find a link for the details.
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看看 http://www.mergent.com/servius - 一组用于历史记录的 REST API股票报价和许多其他类型的金融数据
Take a look at http://www.mergent.com/servius - a set of REST API for historical stock quotes and many other types of financial data
我正在使用雅虎获取免费股票数据，它仍然工作正常（尽管你让我担心了一分钟）。
此链接下载包含 Apple 和 Microsoft 股票信息的 CSV 文件：
http://download.finance.yahoo.com/d/quotes.csv?s=AAPL+MSFT&f=sl1d1t1c1ohgvj1m4&e=.csv
您的应用使用的频率攻击他们的服务器？ 也许他们因为过度使用而封锁了你的IP？
I'm using yahoo for free stock data, and it's still working fine (although you had me worried for a minute there).
This link downloads a CSV file containing stock info for Apple and Microsoft:
http://download.finance.yahoo.com/d/quotes.csv?s=AAPL+MSFT&f=sl1d1t1c1ohgvj1m4&e=.csv
How often was your app hitting their servers? Maybe they blocked your IP due to excessive use?
问题是很难找到免费的数据源。 这主要是因为这些数据被交易场所出售以换取金钱——你不是在要求开源啤酒，你是在要求免费啤酒。
此数据的下一个重要地方可能是 Google (http://www.google.com/finance/）。 与大多数 Google 服务一样，应该有一个 API，您可以在其中查询股票，但我找不到详细信息的链接。
The issue is that it's hard to find a free source for the data. This is mostly due to the fact that this data is sold for money by the trading places -- you're not asking for open source beer, you're asking for free beer.
The next big place for this data is probably Google (http://www.google.com/finance/). As with most Google services there ought to be an API where you can query the stocks but I couldn't find a link for the details.
我使用 WebServiceX 和 Google 财经。
I use WebServiceX and Google Finance.
事实上，Google 确实提供了 Java Finance API。 它纯粹是在投资组合和相关头寸方面进行讨论，但这应该可以帮助您继续下去。
还有 Google Data API，甚至还有 Javascript API
Google does in fact provide a Java Finance API. It's talking purely in terms of portfolios and associated positions, but that should get you going.
There's also a Google Data API and even a Javascript API