找不到具有driverClassName = org.gjt.mm.mysql.Driver的已注册驱动程序

Posted 2021-03-27

我正在开发一个项目并使用弹簧。它工作正常，但当我添加一个数据库时，我有一些例外。

WARN com.zaxxer.hikari.util.DriverDataSource  : Registered driver with driverClassName=org.gjt.mm.mysql.Driver was not found, trying direct instantiation.
ERROR com.zaxxer.hikari.pool.HikariPool        : root - Exception during pool initialization.

java.sql.SQLException: Access denied for user ''@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965) ~[mysql-connector-java-5.1.46.jar:5.1.46]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976) ~[mysql-connector-java-5.1.46.jar:5.1.46]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912) ~[mysql-connector-java-5.1.46.jar:5.1.46]
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:871) ~[mysql-connector-java-5.1.46.jar:5.1.46]......

依赖关系：

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>com.detectlanguage</groupId>
        <artifactId>detectlanguage</artifactId>
        <version>1.1.0</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
    <dependency>
        <groupId>org.jsoup</groupId>
        <artifactId>jsoup</artifactId>
        <version>1.9.1</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-test</artifactId>
        <scope>test</scope>
    </dependency>

application.property:

#Database settings
spring.datasource.url=jdbc:mysql://localhost:3306/mSecond
spring.jpa.hibernate.ddl-auto=update
spring.datasource.name=name
spring.datasource.password=password
spring.datasource.driver-class-name=org.gjt.mm.mysql.Driver

spring.datasource.tomcat.connection-properties=useUnicode=true;characterEncoding=utf-8;
spring.datasource.sql-script-encoding=UTF-8

数据库的地址正确且有效 - 100％

有人可以展示另一种方法，更适合春天的数据库初始化吗？

答案

如果您使用以下行更改属性文件，它应该工作：

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root

这个驱动程序类适用于mysql，你需要使用spring.datasource.username=而不是spring.datasource.name=

我希望这可以帮助你

另一答案

不要使用它，因为它已被弃用！

spring.datasource.driver-class-name=com.mysql.jdbc.Driver

请改用它

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.username=root