1

我有这个类,它只发送一个 http post 请求:

import java.net.*; import java.io.*;
public class JarRuntimeTest{
    public void start() throws Exception{
        HttpURLConnection connection = (HttpURLConnection) (new URL("https://google.com").openConnection());
        connection.setRequestMethod("POST");
        System.out.println(
        getResult((connection.getResponseCode() == HttpURLConnection.HTTP_OK)?
        connection.getInputStream():connection.getErrorStream()));
    }
    public String getResult(InputStream in) throws Exception{
        StringBuilder builder = new StringBuilder("");
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String line = null;
        while ((line = reader.readLine()) != null) builder.append(line);
        reader.close();
        return builder.toString();
    }
    public static void main(String[] args){try{new JarRuntimeTest().start();}catch(Exception e){e.printStackTrace();}}
}

我有这个.bat文件,它为它构建了我的 jar 和 java 运行时映像,并使用这个自定义运行时映像来运行我的 jar:

@echo off
javac JarRuntimeTest.java
jar --create --file thisismyjar.jar  --main-class JarRuntimeTest JarRuntimeTest.class
jdeps --list-deps thisismyjar.jar
jlink --add-modules java.base --output myruntime
myruntime\bin\java.exe -jar thisismyjar.jar
pause

如果我使用自定义 jre 运行应用程序,则会收到错误消息:

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure

但是,如果我在没有自定义 jre 的情况下以正常方式运行应用程序,则不会收到此错误。这个问题是不是因为自定义 jre 没有正确构建,我的自定义 jre 中是否缺少某些模块?或者这是一个完全不同的问题?如果缺少某些模块,我应该怎么做才能包含它们?哪一个?我怎么知道?我只添加了输出的模块jdeps

这是我得到的整个堆栈跟踪:

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131)
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
        at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:356)
        at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Alert.java:293)
        at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:202)
        at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:171)
        at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1498)
        at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1404)
        at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:441)
        at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:412)
        at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:574)
        at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1653)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1577)
        at java.base/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:527)
        at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:308)
        at JarRuntimeTest.start(JarRuntimeTest.java:7)
        at JarRuntimeTest.main(JarRuntimeTest.java:18)

这是我添加的用于制作运行时的模块:java.base,因为这是从 jdeps 输出的。

4

1 回答 1

3

正如@dave_thompson_085 所说,jdk.crypto.ec必须包括在内。我不确定为什么 jdeps 没有显示这一点。无论如何,将它包含在我的 jlink 命令中就可以了,并且它起作用了:

jlink --add-modules java.base,jdk.crypto.ec --output myruntime
myruntime\bin\java.exe -jar thisismyjar.jar
于 2021-08-24T05:51:56.507 回答