Tag Archives: jdbc

[Solved] JDBC connection to SQL Service reported an error: “the driver cannot establish a secure connection with SQL server by using SSL encryption“

1. Environment



SQL Server Version: SQL Server 2008

2. Specific error information

2019-09-16 17:43:11 [Druid-ConnectionPool-Create-847839957] ERROR c.a.d.p.DruidDataSource - create connection SQLException, url: jdbc:sqlserver://localhost;DatabaseName=PT_STORE_HLW, errorCode 0, state 08S01
com.microsoft.sqlserver.jdbc.SQLServerException: The driver was unable to establish a secure connection to SQL Server by using Secure Socket Layer (SSL) encryption. Error: "SQL Server did not return a response. The connection was closed. ClientConnectionId:22dc49b0-221d-4a51-9a84-8d507658df6e”。
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1667)
	at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1668)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1323)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)
	at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
	at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1560)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1623)
	at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2468)
Caused by: java.io.IOException: SQL Server No response returned. The connection is closed. ClientConnectionId:22dc49b0-221d-4a51-9a84-8d507658df6e
	at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.ensureSSLPayload(IOBuffer.java:651)
	at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.readInternal(IOBuffer.java:708)
	at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.read(IOBuffer.java:700)
	at com.microsoft.sqlserver.jdbc.TDSChannel$ProxyInputStream.readInternal(IOBuffer.java:895)
	at com.microsoft.sqlserver.jdbc.TDSChannel$ProxyInputStream.read(IOBuffer.java:883)
	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
	at sun.security.ssl.InputRecord.read(InputRecord.java:503)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975)
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379)
	at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1618)
	... 10 common frames omitted

Solution process:

On the Internet, some Baidu said it was because of the problem of JDK1.6, but I used JDK1.8

It is also said that JRE lacks two jar packages, which is not the reason after trying


In JDK 8 and earlier, edit the/lib/security/Java. Security file and create 3DES_ EDE_ CBC is removed from the jdk.tls.legacyalgorithms security attribute

Remove 3DES from Java. Security under JDK_EDE_CBC can connect SQL Server with JDBC

In Java 8, the encryption suite is disabled by default: “SSL”_ RSA_ WITH_ 3DES_ EDE_ CBC_ Sha ”
and then to connect successfully, open SSL_ RSA_ WITH_ 3DES_ EDE_ CBC_ The answer is:
open folder (Java)_ Security policy file in home/JRE/lib/Security: Java. Security
Modify JDK. TLS. Disabledalgorithms option jdk.tls.disabledalgorithms = MD5, SSLv3, DSA, RSA keysize & lt; 2048
jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 1024,
EC keySize < 224, DES40_CBC, RC4_ 40,3DES_ EDE_ CBC

To enable SSL_RSA_WITH_3DES_EDE_CBC_Sha, will 3DES_EDE_CBC notes out:

Default values of jdk.tls.disabledalgorithms in Java 8:
jdk.tls.disabledalgorithms = MD5, SSLv3, DSA, RSA keysize < 2048
jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 1024,
EC keySize < 224, DES40_CBC, RC4_40

The jdbc driver imported from idea into MySQL appears “Java. Lang. classnotfoundexception: com. Mysql. CJ. JDBC. Driver”


When we use java to operate MySQL database in idea, the following results will appear:

Exception in thread “main” java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driver
at java.net.URLClassLoader.findClass(URLClassLoader. java:382 )
at java.lang.ClassLoader.loadClass(ClassLoader. java:418 )
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher. java:355 )
at java.lang.ClassLoader.loadClass(ClassLoader. java:351 )
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class. java:264 )
at src.mySql.Jdbc.main(Jdbc. java:10 )

1、 General solution

1. JDBC download link


2. Select the content to download and download it

Select platform independent as the operating system. For the two records in the list below, the suffix tar.gz is the Linux version and the suffix. Zip is the Windows version

Here, download the jdbc driver of Windows version, version 8.0.18

Skip login and click the content in the red box to download

3. Import driver into Java project

In idea, click file — project structure

Module, dependencies tab

Click the plus sign (+) on the far right and select jars or directions

2、 Still import driver failed

1. In idea, click file — project structure

2. Select the SDKs, click the plus sign (+) on the far right, select the jdbc driver of Windows version we downloaded before, and then click OK to confirm

3. Finally, we can use this driver by connecting to MySQL database on the idea


package src.mySql;

import java.sql.*;

public class Jdbc {
    public static void main(String[] args) throws Exception {
        Connection conn = null;
        try {
            long start = System.currentTimeMillis();

            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb1",
                    "root", "root");
            long end = System.currentTimeMillis();
            System.out.println("Time to establish connection: " + (end - start) + "ms milliseconds");

        } catch (SQLException e) {
        } finally {
            try {
                if (conn != null) {
            } catch (SQLException e) {


Results: the results were as follows