相关疑难解决方法(0)

我正在尝试使用Homebrew by在mac os 10.6上设置MySQL brew install mysql 5.1.52.

一切顺利,我也很成功mysql_install_db.
但是,当我尝试使用以下命令连接到服务器时:

/usr/local/Cellar/mysql/5.1.52/bin/mysqladmin -u root password 'mypass'

我明白了:

/usr/local/Cellar/mysql/5.1.52/bin/mysqladmin: connect to server at 'localhost' 
failed error: 'Access denied for user 'root'@'localhost' (using password: NO)'

我也尝试过访问mysqladmin or mysql using -u root -proot,
但无论是否使用密码都无法使用.

这是在全新机器上的全新安装,据我所知,必须可以在没有root密码的情况下访问新安装.我也尝试过:

/usr/local/Cellar/mysql/5.1.52/bin/mysql_secure_installation

但我也明白了

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

MySQL 5.5.8卸载MAC OS 10.6.5,重启计算机的消息"/ Library/StartupItems/MySQLCOM"尚未启动,因为它没有正确的安全设置.我设置了sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /usr/local/mysql/support-files/mysql.server

找到定义basedir的配置并设置以下内容:basedir =/usr/local/mysql datadir =/usr/local/mysql/data

bug我点击mysql偏好启动mysql服务器无法启动

和我sudo chown -R root:wheel/Library/StartupItems/MySQLCOM并重新启动,没有警告消息但mysql服务器无法启动,为什么？

当我运行我的代码时,我得到这个例外:

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
    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:422)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1121)
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:357)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2482)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2519)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2304)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.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:422)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346)
    at java.sql.DriverManager.getConnection(DriverManager.java:664)
    at java.sql.DriverManager.getConnection(DriverManager.java:208)
    at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:153)
    at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:144)
    at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:155)
    at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:120)
    at …