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Java/JSP程序连接不上Mysql驱动问题解决方法

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2016-06-07 15:39:521201browse

错误提示: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Me

错误提示:

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:188)
at TestDBConn.main(TestDBConn.java:30)


方法一:(针对Java程序)

    将mysql-connector-java-5.1.34-bin.jar这个包进行环境变量的配置:“我的电脑->属性->环境变量->CLASSPATH” 即可。

    PS:记住在前一个变量前加英文的分号;


方法二:(针对Java程序)

    方法一不行的情况下,将mysql-connector-java-5.1.34-bin.jar包放置到jdk安装目录的\jre\lib\ext下即可。


方法三:(针对JSP)

    将mysql-connector-java-5.1.34-bin.jar放置在Tomcat(其他服务器自行对应)的lib目录下,重启服务器即可。

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