java.lang.ClassNotFoundException:运行时com.mysql.jdbc.Driver(eclipse/maven/tomcat) [英] java.lang.ClassNotFoundException: com.mysql.jdbc.Driver during Runtime (eclipse / maven /tomcat)

问题描述

在运行tomcat'java.lang.ClassNotFoundException:com.mysql.jdbc.Driver'时出现此错误.我正在使用Eclipse(Indigo，J2EE版本)/Maven(m2e-wtp)/Tomcat 7.0的组合.我已经在我的Web应用程序的pom文件中包含了这种依赖关系(从头开始构建).

I'm getting this error while running tomcat 'java.lang.ClassNotFoundException: com.mysql.jdbc.Driver'. I'm using a combination of Eclipse (Indigo, J2EE version) / Maven (m2e-wtp) / Tomcat 7.0. I've included this dependency in my pom file for my web application (build from scratch).

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.6</version>
    </dependency>

在问题"视图中没有得到任何编译错误，但是当我从服务器"视图中运行Tomcat服务器时，出现了这些错误.它清楚地表明Tomcat无法找到Class，这是classpath配置错误，我希望Maven能够解决这个问题.

I do not get any compilation errors in the 'Problems' view but when I run the Tomcat server from the 'Servers' view, I get these errors. It clearly indicates that Tomcat is unable to find the Class and it is classpath configuration error and I was hoping that maven would take care of this.

我查看了与'java.lang.ClassNotFoundException:com.mysql.jdbc.Driver'相关的其他问题，但没有太大帮助.

I looked at other issues related to 'java.lang.ClassNotFoundException: com.mysql.jdbc.Driver' but weren't of much help.

我将不胜感激.

/**这就是我加载驱动程序的方式*/

/** This is how I load the Driver */

static {
        DriverAdapterCPDS cpds_Customer = new DriverAdapterCPDS();
        try {                        cpds_Customer.setDriver(productConfig.getProperty("dbcp.connection.customer.driver_class"));

        } catch (ClassNotFoundException e) {
            // log.error("setDriver Exception " + e);
            e.printStackTrace();
        }
               }

推荐答案

Tomcat 7要求JDBC驱动程序JAR必须进入其/lib目录:

Tomcat 7 requires that JDBC driver JARs must go in its /lib directory:

http://tomcat.apache.org/tomcat-7.0-doc/jndi-datasource-examples-howto.html

搜索忘记"一词.

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