我需要处理传递给我们库的任何给定网址。所以起初我做了:
URL url = new URL(filename);
URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
url = new URL(uri.toASCIIString());
URLConnection conn = url.openConnection();
对于网址http://www.stackoverflow.com?title =Člen8FO,这给了我一个http://www.stackoverflow.com?title=%C4%8Clen8FO的网址
当我提出请求时,它返回了403。所以我做了:
URL url = new URL(filename);
URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), URLEncoder.encode(url.getQuery(), "UTF-8"), url.getRef());
url = new URL(uri.toASCIIString());
这给了我一个http://www.stackoverflow.com?title%3D%C4%8Clen8FO
的网址为什么它在显式=失败?我认为这完全有效。
更新:这太奇怪了。以下代码失败,现在成功了。
import java.io.InputStream;
import java.net.*;
public class UriIssue {
public static void main(String[] args) {
try {
openUriWithEncode("http://www.google.com/?q=\u010clen8FO");
System.out.println("completed successfully");
} catch (Exception ex) {
System.out.println("exception = " + ex);
}
try {
openUriNoEncode("http://www.google.com/?q=\u010clen8FO");
System.out.println("completed successfully");
} catch (Exception ex) {
System.out.println("exception = " + ex);
}
}
public static void openUriWithEncode(String fullUrl) throws Exception {
System.out.println("openUriWithEncode(" + fullUrl + ")");
URL url = new URL(fullUrl);
String query = url.getQuery() != null ? URLEncoder.encode(url.getQuery(), "UTF-8") : null;
URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), query, url.getRef());
System.out.println("uri = " + uri.toASCIIString());
url = new URL(uri.toASCIIString());
URLConnection conn = url.openConnection();
InputStream stream = conn.getInputStream();
stream.close();
}
public static void openUriNoEncode(String fullUrl) throws Exception {
System.out.println("openUriNoEncode(" + fullUrl + ")");
URL url = new URL(fullUrl);
URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
System.out.println("uri = " + uri.toASCIIString());
url = new URL(uri.toASCIIString());
URLConnection conn = url.openConnection();
InputStream stream = conn.getInputStream();
stream.close();
}
}
答案 0 :(得分:1)
您正在对整个查询进行编码,包括=
,因此=
当然正在编码。您只需要对键和值进行编码,例如
URLEncoder.encode(key)+"="+URLEncoder.encode(value)