java - ClassNotFoundException : com. mysql.jdbc.jdbc2.optional.MysqlDataSource 错误

Question

我在项目中使用 Hikari 库进行 MySQL 连接。当我尝试运行该程序时，出现 ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource 错误。我认为我必须在我的项目中包含 mysql-connector 库。

这是我的 pom.xml

    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.34</version>
        </dependency>
        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP-java6</artifactId>
            <version>2.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.18.1-GA</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-all</artifactId>
            <version>4.1.0.Beta3</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>

    <build>
        <finalName>GridControl</finalName>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <archive>
                        <manifestEntries>
                            <Main-Class>net.thegridmc.control.GridControl</Main-Class>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.3</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <minimizeJar>true</minimizeJar>
                            <createDependencyReducedPom>false</createDependencyReducedPom>
                            <artifactSet>
                                <includes>
                                    <include>mysql:*</include>
                                    <include>org.slf4j:*</include>
                                    <include>com.zaxxer:*</include>
                                    <include>org.javassist:javassist</include>
                                    <include>io.netty:netty-all</include>
                                </includes>
                            </artifactSet>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

jar 构建成功，但仍然出现错误。非常感谢任何帮助。谢谢。

Answer 1

尝试 com.mysql.cj.jdbc.MysqlDataSource。它适用于

mysql-connector-java 6.0.4