java连接

Question

我正在尝试建立一个从java应用程序到mysql服务器的SSL连接。以下是设置详细信息。

5.7.28

• mysql-connector-java-8.0.12

• connection

• java 8

• mysql服务器版本：字符串: jdbc:mysql://localhost:3306/carbon_mysql?autoReconnect=true&useSSL=true&requireSSL=true

但是，当我试图通过java应用程序连接时，会引发下面的异常。

Caused by: com.mysql.cj.exceptions.WrongArgumentException: Malformed database URL, failed to parse the connection string near '=true&requireSSL=true'.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59)
at com.mysql.cj.conf.ConnectionUrlParser.processKeyValuePattern(ConnectionUrlParser.java:524)
at com.mysql.cj.conf.ConnectionUrlParser.parseQuerySection(ConnectionUrlParser.java:496)
at com.mysql.cj.conf.ConnectionUrlParser.getProperties(ConnectionUrlParser.java:621)
at com.mysql.cj.conf.ConnectionUrl.collectProperties(ConnectionUrl.java:302)
at com.mysql.cj.conf.ConnectionUrl.<init>(ConnectionUrl.java:287)
at com.mysql.cj.conf.url.SingleConnectionUrl.<init>(SingleConnectionUrl.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.cj.util.Util.handleNewInstance(Util.java:210)
at com.mysql.cj.util.Util.getInstance(Util.java:185)
at com.mysql.cj.util.Util.getInstance(Util.java:192)
at com.mysql.cj.conf.ConnectionUrl.getConnectionUrlInstance(ConnectionUrl.java:189)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:201)
... 83 more

Answer 1

尝试将连接url更改为

jdbc:mysql://localhost:3306/carbon_mysql?autoReconnect=true&useSSL=true&requireSSL=true&verifyServerCertificate=true

您还必须确保已经在mysql上授予ssl。在MySQL服务器中以root身份登录，并运行以下查询：

GRANT USAGE ON *.* TO 'root'@'%' REQUIRE SSL; 
FLUSH PRIVILEGES;