无法加载驱动程序类:com.microsoft.jdbc.sqlserver.SQLServerDriver

Question

我在运行Spring启动应用程序时遇到异常,它说无法创建数据源bean,导致此异常的原因是它无法检测到SQLServer的DriverClass.

这是我的application.properties文件:

spring.jpa.database-platform=org.hibernate.dialect.SQLServerDialect
spring.jpa.hibernate.ddl-auto=update
spring.datasource.driverClassName=com.microsoft.jdbc.sqlserver.SQLServerDriver
spring.datasource.url=jdbc:sqlserver://localhost;databaseName=dbname
spring.datasource.username=name
spring.datasource.password=****

我已经下载了sqljdbc连接器jar并将其放在lib文件夹中,并在我的pom.xml文件中提供它的引用.

    <?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

<groupId>com.myproject</groupId>
<artifactId>myproject-notifications</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>netpace-notifications</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.8.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>

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

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-dbcp2</artifactId>
            <version>2.1.1</version>

        </dependency>
        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>sqljdbc4</artifactId>
            <version>4.0</version>
            <scope>system</scope>
            <systemPath>${project.basedir}/lib/sqljdbc4-2.0.jar</systemPath>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

我尝试过使用这些标签:

<dependency>
        <groupId>com.microsoft.sqlserver</groupId>
        <artifactId>sqljdbc4</artifactId>
        <version>4.0</version>
    </dependency>

但它在我的pom.xml文件中出错,所以我必须使用其他方法.我是新手,如果有人让我知道我在这里做错了什么,我会非常感激.提前致谢.

Answer 1

您正在尝试加载错误的驱动程序.名称的驱动程序com.microsoft.jdbc.sqlserver.SQLServerDriver来自非常旧的SQL Server 2000 JDBC驱动程序.

在SQL Server 2005 JDBC驱动程序中,Microsoft将其更改为com.microsoft.sqlserver.jdbc.SQLServerDriver(请注意在sqlserver和之间切换顺序jdbc.

附注:您使用的是旧版本的驱动程序.Microsoft已开源SQL Server JDBC驱动程序,它在maven上可用:

<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>mssql-jdbc</artifactId>
    <version>6.2.2.jre8</version>
</dependency>

有关实际的最新版本,请参阅https://github.com/Microsoft/mssql-jdbc.

Answer 2

您的系统上存在该 jar 吗？您正在强制 maven 从系统获取依赖项，如果它不在该路径上，maven 将失败。您可以将标签替换为以下内容：

<dependency>
    <groupId>com.microsoft</groupId>
    <artifactId>sqljdbc4</artifactId>
    <version>3.0</version>
</dependency>

来源： https ://mvnrepository.com/artifact/com.microsoft/sqljdbc4/3.0