【Druid】access denied for user ''@'ip'

今天在写单元测试时，遇到一个很奇葩的问题，一直在报这样的错误：

Caused by: java.sql.SQLException: Access denied for user ''@'183.134.103.169' (using password: YES)

	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)

	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3847)

	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3783)

	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:871)

	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1665)

	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1207)

	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2249)

	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2280)

	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2079)

	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)

	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)

	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:400)

	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)

	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)

	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:148)

	at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:785)

	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:142)

	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1423)

	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1477)

	at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:677)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:498)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1640)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1581)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1511)

	... 62 more

分析来分析去，总是找不到错误的原因。于是想到，难道是Druid的配置问题？

于是重新看了下spring的数据库配置，

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">

        <property name="url" value="${db.url}"/>

        <property name="name" value="${db.user}"/>

        <property name="password" value="${db.password}"/>

        <property name="initialSize" value="${db.initialSize}"/>

        <property name="minIdle" value="${db.maxIdle}"/>

        <property name="maxActive" value="${db.maxActive}"/>

        <property name="maxWait" value="${db.maxWait}"/>

        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->

        <property name="timeBetweenEvictionRunsMillis" value="60000"/>

        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->

        <property name="minEvictableIdleTimeMillis" value="60000"/>

        <property name="validationQuery" value="SELECT 'x'"/>

        <property name="testWhileIdle" value="true"/>

        <property name="testOnBorrow" value="false"/>

        <property name="testOnReturn" value="false"/>

        <property name="filters" value="config"/>

        <property name="connectionProperties" value="config.decrypt=true"/>

        <!-- 每隔5分钟将监控日志输出到日志文件中，单位是毫秒。 -->

        <property name="timeBetweenLogStatsMillis" value="300000"/>

    </bean>

发现name这个属性感觉不太对劲，于是查阅文档。

原来这边配置的链接用户名应该是userName，而不是name。改为userName立刻解决问题，于是mark一下。

巴特西

【Druid】access denied for user ''@'ip'

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