无法从java连接到mariadb - 只能与mysql开发人员连接

Question

我正在尝试从java连接到mariadb - 但是我一直得到以下异常

com.ninja_squad.dbsetup.DbSetupRuntimeException: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Could not connect to 178.62.47.82:3306 : Connection refused)
    at com.ninja_squad.dbsetup.DbSetup.launch(DbSetup.java:123)
    at com.swiped.database.DBFactoryTest.setUp(DBFactoryTest.java:42)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Could not connect to 178.62.47.82:3306 : Connection refused)
    at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)
    at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
    at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
    at com.ninja_squad.dbsetup.destination.DataSourceDestination.getConnection(DataSourceDestination.java:80)
    at com.ninja_squad.dbsetup.DbSetup.launch(DbSetup.java:104)
    ... 24 more
Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to 178.62.47.82:3306 : Connection refused
    at org.mariadb.jdbc.internal.SQLExceptionMapper.get(SQLExceptionMapper.java:136)
    at org.mariadb.jdbc.internal.SQLExceptionMapper.throwException(SQLExceptionMapper.java:106)
    at org.mariadb.jdbc.Driver.connect(Driver.java:114)
    at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
    at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)
    at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)
    at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)
    ... 28 more
Caused by: org.mariadb.jdbc.internal.common.QueryException: Could not connect to 178.62.47.82:3306 : Connection refused
    at org.mariadb.jdbc.internal.mysql.MySQLProtocol.connect(MySQLProtocol.java:677)
    at org.mariadb.jdbc.internal.mysql.MySQLProtocol.<init>(MySQLProtocol.java:266)
    at org.mariadb.jdbc.Driver.connect(Driver.java:110)
    ... 32 more
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at java.net.Socket.connect(Socket.java:528)
    at org.mariadb.jdbc.internal.mysql.MySQLProtocol.connect(MySQLProtocol.java:372)
    at org.mariadb.jdbc.internal.mysql.MySQLProtocol.connect(MySQLProtocol.java:673)
    ... 34 more

我的JDBC连接字符串如下所示;

jdbc:mariadb://178.62.47.82:3306/swiped", "username", "pass");

奇怪的是 - 我可以使用mysql开发人员使用下面的设置连接到数据库

有没有人知道我的连接字符串是否需要特定格式或者可能需要的任何其他配置？我的pom.xml中还有以下内容

<dependency>
    <groupId>org.mariadb.jdbc</groupId>
    <artifactId>mariadb-java-client</artifactId>
    <version>1.1.7</version>
</dependency>