postgresql 在运行编译的jar时,Sping Boot / Java项目“无法确定合适的驱动程序类”,但在vscode中工作正常

yzuktlbb  于 2023-03-29  发布在  PostgreSQL
关注(0)|答案(2)|浏览(104)

我正在使用Sping Boot 在Java中创建REST API。我遇到了一个我不理解的问题:当我通过vscode运行我的代码时,一切都很好。但是当我试图运行编译后的.jar文件时,我得到以下错误消息:

<message>org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration': Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception with message: Failed to determine a suitable driver class</message>
    <frame>
      <class>org.springframework.beans.factory.support.ConstructorResolver</class>
      <method>createArgumentArray</method>
      <line>798</line>
    </frame>

它是一个PostgreSQL数据库。
我猜我的 * pom.xml * 文件可能有问题?

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.0.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.languagehub</groupId>
    <artifactId>languagehubpublicapi</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>languagehubpublicapi</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>

        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <scope>runtime</scope>
        </dependency>

        <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-devtools</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>

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

</project>

下面是我的 application.properties 文件:

spring.datasource.url = jdbc:postgresql://localhost:5432/languagehub
spring.datasource.username = [USER]
spring.datasource.password = [PASSWORD]
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.datasource.driver-class-name=org.postgresql.Driver
server.port = 8080
logging.level.org.springframework.web=DEBUG
logging.level.org.hibernate=ERROR

谢谢你的阅读!如果你有任何想法,我会非常感谢你的帮助!我祝大家有一个美好的一天!

**编辑:**我修改了 pom.xml 文件中的 postgresql 依赖项部分。现在我有以下内容:

<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
</dependency>

但我还是得到同样的错误...

tvmytwxo

tvmytwxo1#

你的问题就在这里:

<groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <scope>runtime</scope>

当你说runtime时,你是在告诉maven jar将在运行时提供(就像在deployment中一样),它不应该在捆绑中包含它。所以当你创建你的 Boot jar时,这个依赖项不会被包含。删除scope或者只是手动将它添加到CLI(不建议)。默认范围是compiled
VS代码在这里为您架起了差距,当您运行时,您只是没有意识到,它将它放在类路径上。

qeeaahzv

qeeaahzv2#

你试过从postgresql依赖中删除<scope>runtime</scope>吗?

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