java.lang.IllegalStateException: 无法加载 JDBC 驱动程序类 [com.mysql.jdbc.Driver]

Question

When I try to run this Test way:

import org.junit.Test;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

public class Demo1 {
    @Test
    public void run(){
        //create DataSource
        DriverManagerDataSource driverManagerDataSource = new DriverManagerDataSource();
        driverManagerDataSource.setDriverClassName("com.mysql.jdbc.Driver");
        driverManagerDataSource.setUrl("jdbc:mysql:///spring_db");
        driverManagerDataSource.setUsername("root");
        driverManagerDataSource.setPassword("root");
        //create jdbcTemplate
        JdbcTemplate jdbcTemplate = new JdbcTemplate(driverManagerDataSource);
        System.out.println(jdbcTemplate);
    }
}

And I had put the mysql-connector-java dependency into my config.xml file,And this is all my dependencies:

While I get this error,how could I solve this problem?:

java.lang.IllegalStateException: Could not load JDBC driver class [com.mysql.jdbc.Driver]

    at org.springframework.jdbc.datasource.DriverManagerDataSource.setDriverClassName(DriverManagerDataSource.java:131)
at Demo1.run(Demo1.java:10)
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:468)
    at org.springframework.jdbc.datasource.DriverManagerDataSource.setDriverClassName(DriverManagerDataSource.java:128)
    ... 23 more

Answer 1

您使用的是 MySQL Connector/J 8.0 JAR 文件，因此驱动程序类名称应为“com.mysql.cj.jdbc.Driver”而不是“com.mysql.jdbc.Driver”。