带有中文字符的无效URI（Java） [英] Invalid URI with Chinese characters (Java)

问题描述

在网址中设置包含中文字符的网址连接时遇到问题。它适用于拉丁字符：

Having trouble setting up a URL connection with Chinese characters in the URL. It works with Latin characters:

String xstr = "维也纳恩斯特哈佩尔球场" ;
URI uri = new URI("http","ajax.googleapis.com","/ajax/services/language/detect","v=1.0&q="+xstr,null);   
URL url = uri.toURL(); 
URLConnection connection = url.openConnection();
InputStream is = connection.getInputStream() ;

getInputStream（）调用结果为：

The getInputStream() call results in:

java.lang.IllegalArgumentException: Invalid uri 'http://ajax.googleapis.com/ajax/services/language/detect?v=1.0&q=???????????': Invalid query

推荐答案

问题是由于 URI.toURL（）不对非ASCII字符进行百分比编码。请改用以下内容：

The problem is caused by the fact that URI.toURL() doesn't percent-encode non-ASCII characters. Use the following instead:

URL url = new URL(uri.toASCIIString());  

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