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” <!-- 引入外部文件--> <context:property-placeholder location="classpath:jdbc.properties"/> <!-- 将数据源交给IOC容器管理--> <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&amp;useUnicode=true&amp;characterEncoding=UTF-8&amp;useSSL=false jdbc.username=root jdbc.password=root