Security javax.net.ssl.SSLHandshakeException:收到致命警报：证书\u未知

我想使用JavaSSL会话在客户机和服务器之间建立一个安全通道

我按照以下链接建立连接 在我从命令行运行此命令以创建服务器密钥之后

keytool genkey别名Herong keyalg RSA keysize 1024密钥库。密钥库

此代码返回一个错误类型“Received fatal alert:certificate_unknown”我不知道代码中的错误在哪里

Server started:
Server socket class: class com.sun.net.ssl.internal.ssl.SSLServerSocketImpl
Socker address = 0.0.0.0/0.0.0.0
Socker port = 8888
Need client authentication = false
Want client authentication = false
Use client mode = false
Socket Server class: class com.sun.net.ssl.internal.ssl.SSLSocketImpl
Remote address = /127.0.0.1
Remote  Server port = 36571
Local socket Server address = /127.0.0.1:8888
Local Server address = /127.0.0.1
Local Server port = 8888
Need Server client authentication = false
Cipher suite = SSL_NULL_WITH_NULL_NULL
Protocol = NONE
javax.net.ssl.SSLException: Connection has been shutdown:   javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.checkEOF(Unknown Source)
    at com.sun.net.ssl.internal.ssl.AppInputStream.read(Unknown Source)
    at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
    at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
    at sun.nio.cs.StreamDecoder.read(Unknown Source)
    at java.io.InputStreamReader.read(Unknown Source)
    at java.io.BufferedReader.fill(Unknown Source)
    at java.io.BufferedReader.readLine(Unknown Source)
    at java.io.BufferedReader.readLine(Unknown Source)
    at HttpsHello.main(HttpsHello.java:31)
Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown
    at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
    at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.recvAlert(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.getSession(Unknown Source)
    at HttpsHello.printSocketInfo(HttpsHello.java:59)
    at HttpsHello.main(HttpsHello.java:26)

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你到底在找什么。你需要提供问题的更多细节。您正在尝试创建SSL服务器吗？我有SSL服务器和SSL客户端，我第一次运行服务器时一切正常，我运行客户端，客户端返回错误类型“Received fatal alert:certificate_unknown”我看不出代码中的错误在哪里？错误不在代码中，它在证书中。您还没有创建一个，只有一个密钥对。请参阅JSSE参考指南。