java - 从 HttpURLConnection 获取数据作为文本抛出 javax.net.ssl.SSLHandshakeException for SourceForge.net

Question

Java 版本 1.8.0_121，I see a solution for Java 9 only

Description:

我的目标是获取有关 SourceForge 项目的信息，例如项目的总下载量。 SourceForge 有一个名为 SourceForge Downloads Stats API 的 API .

所以我创建了一个简单的程序，将结果视为原始文本，我不需要它作为 JSON。

例如，我正在获取有关 Apache OpenOffice 的信息下载和更多 -> Link , you can try it to see

但我无法使用 Java 获取数据，导致以下错误。我已经在其他网站上测试了该代码并且运行良好，但是对于这个我不知道为什么。

Java Code:

import java.net.*;
import java.io.*;

public class URLReader {
    public static void main(String[] args) throws Exception {

        //Create HttpURLConnection 
        HttpURLConnection httpcon = (HttpURLConnection) new URL(
                "https://sourceforge.net/projects/openofficeorg.mirror/files/stats/json?start_date=2014-10-29&end_date=2014-11-04").openConnection();
        //In case it might to the trick...
        httpcon.addRequestProperty("User-Agent", "Mozilla/5.0");
        //Read the inputstream
        BufferedReader in = new BufferedReader(new InputStreamReader(httpcon.getInputStream()));

        //Print everything
        String inputLine;
        while ( ( inputLine = in.readLine() ) != null)
            System.out.println(inputLine);
        in.close();
    }
}

Error:

Exception in thread "main" javax.net.ssl.SSLHandshakeException: Received fatal a
lert: handshake_failure
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
    at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:13
75)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Abstra
ctDelegateHttpsURLConnection.java:185)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnectio
n.java:1546)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection
.java:1474)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLCon
nectionImpl.java:254)
    at aaTester.URLReader.main(URLReader.java:13)

最后

如能提供上述解决方案，我们将不胜感激。

尝试使用 Andy 的答案会产生同样的错误。

Answer 1

转动 comment来自@GOXR3PLUS 的答案:

至少升级到 Java 8u161(或 Java 9)会使 SSLHandshakeException 从 SourceForge 下载时消失。