MySql远程访问被拒绝

Question

I am trying to connect to a mysql database. When I am trying to connect over mysql Workbench, I can but over java application, it says:

Caused by: java.sql.SQLException: Access denied for user 'root'@'1.2.3.4' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4232)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4164)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:926)
    at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1748)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1288)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2506)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2539)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2321)

The datasource definition is:

<bean id="datasource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://3.3.3.3:3306"/>
    <property name="username" value="root"/>
    <property name="password" value="12345"/>
</bean>

and in db , user_priviliges table is:

'root'@'%', 'def', 'USAGE', 'NO'

Could please help me to solve this problem?

EDIT:

I am using jdbcTemplate and the error is on this exact line:

getJdbcTemplate().queryForList(sql.toString());

Answer 1

You need to create a an account for 'root'@'localhost' in addition to the 'root'@'%' account that you already have (with the same password). Why? See the mysql docs on this subject . Here is the relevant part:

Two of the accounts have a user name of monty and a password of some_pass. Both accounts are superuser accounts with full privileges to do anything. The 'monty'@'localhost' account can be used only when connecting from the local host. The 'monty'@'%' account uses the '%' wildcard for the host part, so it can be used to connect from any host.

It is necessary to have both accounts for monty to be able to connect from anywhere as monty. Without the localhost account, the anonymous-user account for localhost that is created by mysql_install_db would take precedence when monty connects from the local host. As a result, monty would be treated as an anonymous user. The reason for this is that the anonymous-user account has a more specific Host column value than the 'monty'@'%' account and thus comes earlier in the user table sort order. (user table sorting is discussed in Section 6.2.4, “Access Control, Stage 1: Connection Verification”.)