Question

我正在解析网页上的一些链接，然后测试这些链接是否存在。我正在将解析后的链接字符串转换为uri，问题是某些链接已经编码了如下字符：http://download.microsoft.com/download/6/3/c/63c1d527-9d7e-4fd6-9867-fd0632066740/kinect_qsg%20premium_bndl_en-fr-es.pdf

当我通过下面的代码传递时，我得到：http://download.microsoft.com/download/6/3/c/63c1d527-9d7e-4fd6-9867-fd0632066740/kinect_qsg%2520premium_bndl_en-fr-es.pdf

您可以看到编码％20的内容。我该如何避免这种情况？我应该首先解码我的字符串吗？如果是这样，最好的方法是什么？

URL url = null;
        URI uri = null;
        try {
            url = new URL(checkUrl);
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
        }
        try {
            uri = new URI(url.getProtocol(), url.getAuthority(), url.getPath(), url.getQuery(), url.getRef());
        } catch (URISyntaxException e1) {
            e1.printStackTrace();
        }

Answer 1

尝试使用URLDecoder类，

        URL url = null;
        URI uri = null;
        String checkUrl = "http://download.microsoft.com/download/6/3/c/63c1d527-9d7e-4fd6-9867-fd0632066740/kinect_qsg%20premium_bndl_en-fr-es.pdf"; 
        try {
            url = new URL(URLDecoder.decode(checkUrl,"UTF-8"));
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
        } catch (UnsupportedEncodingException e1) {
            e1.printStackTrace();
        }
        try {
            uri = new URI(url.getProtocol(), url.getAuthority(), url.getPath(), url.getQuery(), url.getRef());
            System.out.println(uri.getHost());
        } catch (URISyntaxException e1) {
            e1.printStackTrace();
        }

该类的类路径是java.net.URLDecoder

Answer 2

您可以使用：

String decoded = URLDecoder.decode(yorUrl, "UTF-8");

通过编码从字符串创建uri

2 个答案: