SSM-用Spring+Druid+Mybatis错误:com.alibaba.druid.support.logging.JakartaCommonsLoggingImpl error

一时失言乱红尘 2022-12-16 13:27 227阅读 0赞

# 如下报错 #

com.alibaba.druid.support.logging.JakartaCommonsLoggingImpl error
    严重: create connection SQLException, url: jdbc:mysql://192.168.211.129:3306/spring_db?serverTimezone=UTC&useUnicode=true&characterEncoding=UTF-8&useSSL=false, errorCode 1045, state 28000
    java.sql.SQLException: Access denied for user ''@'192.168.211.1' (using password: YES)
    	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
    	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978)
    	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914)
    	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:871)
    	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1714)
    	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1224)
    	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2199)
    	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2230)
    	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2025)
    	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:778)
    	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:423)
    	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
    	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)
    	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
    	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1513)
    	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
    	at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)

# 解决方案一 #

查看applicationContext.xml(Spring配置文件)配置文件中的 `name` 值是否如下:  
Druid数据源

*  name=“driverClassName” 不是 “driver”
 *  name=“url”
 *  name=“username” 不是 “name"或者"user”
 *  name=“password”

<context:property-placeholder location="classpath:jdbc.properties"/>
    
    
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
            <property name="driverClassName" value="${jdbc.driver}"/>
            <property name="url" value="${jdbc.url}"/>
            <property name="username" value="${jdbc.username}"/>
            <property name="password" value="${jdbc.password}"/>
        </bean>

# 解决方案二 #

查看:`jdbc.properties` 文件是否书写正确

*  连接账户和密码是否正确
 *  如果是用`mysql8.0`下面的`jdbc.driver`要改成 `com.mysql.cj.jdbc.Driver`

jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://192.168.211.129:3306/spring_db?serverTimezone=UTC&useUnicode=true&characterEncoding=UTF-8&useSSL=false
    jdbc.username=root
    jdbc.password=root