获取java.lang.ClassNotFoundException:com.mysql.jdbc.Driver Exception

我在Tomcat中配置连接池时遇到以下异常

这是Context.xml

这是Bean Entry

    
    




org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Co
nnection; nested exception is org.apache.tomcat.dbcp.dbcp.SQLNestedException: Ca
nnot load JDBC driver class 'com.mysql.jdbc.Driver'
        at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(Dat
aSourceUtils.java:82)
        at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:
382)
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:45
8)
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:46
6)
        at com.businesscaliber.dao.Dao.getQueryForListMap(Dao.java:66)
        at com.businesscaliber.dao.MiscellaneousDao.getDefaultSucessStory(Miscel
laneousDao.java:109)
        at com.businesscaliber.listeners.BusinessContextLoader.contextInitialize
d(BusinessContextLoader.java:40)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContex
t.java:3795)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
252)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:760)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:74
0)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)

        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:831)

        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:720
)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490
)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1150)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:311)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:120)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)

        at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)

        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443
)
        at org.apache.catalina.core.StandardService.start(StandardService.java:4
48)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:700
)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driv
er class 'com.mysql.jdbc.Driver'
        at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDat
aSource.java:1136)
        at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSo
urce.java:880)
        at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(D
ataSourceUtils.java:113)
        at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(Dat
aSourceUtils.java:79)
        ... 30 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:164)
        at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDat
aSource.java:1130)

MJB.. 5

这里没有什么复杂的 - 你配置了mysql,但你从未安装或从未放置在类路径中的mysql的jdbc驱动程序.

忽略/禁用spring,hibernate,连接池,只需在jsp或其他任何东西中尝试这个java代码.

Class.forName("com.mysql.jdbc.Driver");

在那之前(例如文件在类路径中),你将继续悲伤

这里没有什么复杂的 - 你配置了mysql,但你从未安装或从未放置在类路径中的mysql的jdbc驱动程序.

忽略/禁用spring,hibernate,连接池,只需在jsp或其他任何东西中尝试这个java代码.

Class.forName("com.mysql.jdbc.Driver");

在那之前(例如文件在类路径中),你将继续悲伤