Java 从 UTF-8 格式的 URL 读取 XML？

Question

我正在尝试从 URL 解析 XML 数据，但我似乎无法让它将其解析为 UTF-8，因为从响应中读取时 ¥ 字符变得困惑:

URL url = new URL("https://suggestqueries.google.com/complete/search?output=toolbar&hl=en&q=¥");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
final InputStream in = url.openStream();
final InputSource source = new InputSource(new InputStreamReader(in, "UTF-8"));
source.setEncoding("UTF-8");
Document doc = db.parse(source);
doc.getDocumentElement().normalize();

NodeList nodeList = doc.getElementsByTagName("suggestion");

for (int i = 0; i < 10; i++) {
    Node node = nodeList.item(i);
    if(node==null || listItems.size() > 10){
        break;
    }
    String suggestion = node.getAttributes().getNamedItem("data").getTextContent();
    // ...suggestions include � instead of ¥
}

source.setEncoding() 是另一个线程中接受的答案，但似乎对我不起作用。

Answer 1

输入文件的编码似乎与 UTF-8 不同。

这些对我有用:

使用ISO-8859-1编码读取文档

Document doc = db.parse(new InputSource(new InputStreamReader(url.openStream(), "ISO-8859-1")));

最终的方法是这样的:

URL url = new URL("https://suggestqueries.google.com/complete/search?output=toolbar&hl=en&q=¥");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(new InputStreamReader(url.openStream(), "ISO-8859-1")));
doc.getDocumentElement().normalize();

NodeList nodeList = doc.getElementsByTagName("suggestion");

for (int i = 0; i < 10; i++) {
    Node node = nodeList.item(i);
    if(node==null){
        break;
    }
    String suggestion = node.getAttributes().getNamedItem("data").getTextContent();
    System.out.println(suggestion);
}