java.net.SocketException java.net.SocketException:连接或出站已关闭
java.net.SocketException java.net.SocketException:连接或出站已关闭
提问于 2020-12-05 20:36:09
晚上好,
我面对这个错误已经有几天了，尽管我在网上寻找一个解决方案，我还是可以修复这个错误。
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
public class LDAPtest {
public static void main(String[] args) {
try {
String keystorePath = "C:/Program Files/Java/jdk-13.0.2/lib/security/cacerts";
System.setProperty("javax.net.ssl.keyStore", keystorePath);
System.setProperty("javax.net.ssl.keyStorePassword", "changeit");
Hashtable<String, String> ldapEnv = new Hashtable<>();
ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
ldapEnv.put(Context.PROVIDER_URL, "ldaps://localhost:10636");
ldapEnv.put(Context.SECURITY_AUTHENTICATION,"simple");
ldapEnv.put(Context.SECURITY_PRINCIPAL,"uid=admin,ou=system");
ldapEnv.put(Context.SECURITY_CREDENTIALS,"secret");
DirContext connection = new InitialDirContext(ldapEnv);
System.out.println("Benvenuto " + connection);
NamingEnumeration enm = connection.list("");
while (enm.hasMore()) {
System.out.println(enm.next());
}
enm.close();
connection.close();
}catch(Exception e) {
e.printStackTrace();
}
}}
当SSL未被测试时，此代码实际上正在工作，替换
ldapEnv.put(Context.PROVIDER_URL, "ldaps://localhost:10636");使用
ldapEnv.put(Context.PROVIDER_URL, "ldap://localhost:10389");我使用为LDAP服务器做了设置，并在这里遵循本教程，以便让LDAP工作：http://directory.apache.org/apacheds/basic-ug/3.3-enabling-ssl.html
因此，我制作了证书，甚至安装了它，并使用keytool将其导入仙人掌。我为所选端口(10636)启用了端口转发，但仍然得到了以下异常：
javax.naming.CommunicationException: simple bind failed: localhost:10636 [Root exception is
java.net.SocketException: Connection or outbound has closed]
at java.naming/com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:219)
at java.naming/com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2795)
at java.naming/com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:320)
at java.naming/com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxFromUrl(LdapCtxFactory.java:225)
at java.naming/com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:189)
at java.naming/com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:243)
at java.naming/com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154)
at java.naming/com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84)
at java.naming/javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:730)
at java.naming/javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:305)
at java.naming/javax.naming.InitialContext.init(InitialContext.java:236)
at java.naming/javax.naming.InitialContext.<init>(InitialContext.java:208)
at java.naming/javax.naming.directory.InitialDirContext.<init>(InitialDirContext.java:130)
at Prova3.main(Prova3.java:31)
Caused by: java.net.SocketException: Connection or outbound has closed
at java.base/sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:1246)
at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81)
at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142)
at java.naming/com.sun.jndi.ldap.Connection.writeRequest(Connection.java:398)
at java.naming/com.sun.jndi.ldap.Connection.writeRequest(Connection.java:371)
at java.naming/com.sun.jndi.ldap.LdapClient.ldapBind(LdapClient.java:359)
at java.naming/com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:214)
... 13 more提前谢谢你
回答 1
Stack Overflow用户
发布于 2021-03-17 14:40:55
对于谷歌员工：
simple bind failed错误几乎总是与SSL连接相关。
使用nc或telnet，检查是否可以在客户端与远程主机和端口之间建立连接。
使用SSLPoke.java (一个检查SSL连接的简单Java类)，检查证书是否正确导入和使用，也检查正确的TLS版本。使用类似于java -Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2 -Djavax.net.debug=all SSLPoke google.com 443 > log.txt 2>&1的东西。
寻找：
Warning: no suitable certificate found - continuing without client authentication=检查是否设置了javax.net.ssl.trustStoreFatal (HANDSHAKE_FAILURE): Couldn't kickstart handshaking=可能与TLS versions- Also不匹配，检查中间CA是否已过期
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65161717
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