Question

如果我与数据库的连接在我的托管中不需要她的名字只是一个主机名，我该怎么办？但是，当您尝试通过以下方式进行连接时：

<beans:bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource"

        p:url="jdbc:mysql://mysqHostName.pl"
        p:driverClassName="com.mysql.jdbc.Driver " p:username="user"
        p:password="password">
 </beans:bean>

我有例外：

java.sql.SQLException: No database selected
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3771)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2535)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1911)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2145)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2081)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2066)
    at ..........................................................................

当我添加datebase名称时，我有一个例外

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied for user 'user'@'%' to database 'xxxxxx_baza'
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
    at com.mysql.jdbc.Util.getInstance(Util.java:372)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:980)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3771)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)
    at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2239)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2270)

Answer 1

.ghost .secondary-content { &, label, i { background: #ffcc80; color: white !important; } }看起来很可疑 - 这应该指向您的数据库。您需要将此修改为您的MySQL数据库的URL，我假设您使用的是您已选择的驱动程序的数据库引擎。

Answer 2

错误是用户没有数据库的访问权限。在数据库上授予用户权限。

不使用名称连接到数据库

2 个答案: