Camel '无法配置数据源:未指定'url'属性,无法配置任何嵌入式数据源'springboot应用程序中出现错误

vpfxa7rd  于 2022-11-07  发布在  Apache
关注(0)|答案(2)|浏览(217)

我创建了一个springboot应用程序,它使用Spring Boot和Apache Camel JDBC组件在PostgreSQL中插入一条记录。

<dependency>
                <groupId>org.postgresql</groupId>
                <artifactId>postgresql</artifactId>
                <scope>runtime</scope>
            </dependency>
        <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
        <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
        <version>2.9.0</version>
    </dependency>
        <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-jdbc</artifactId>
        <version>${camel.version}</version>
        <!-- use the same version as your Camel core version -->
    </dependency>

对于数据库配置,我使用一个www.example.com文件创建了以下java类application.properties:
数据库配置java类:

import java.io.FileInputStream;
    import java.io.IOException;
    import java.util.Properties;
    import org.apache.camel.support.SimpleRegistry;
    import org.apache.commons.dbcp2.BasicDataSource;

    public class DatabaseConfiguration {
        public static SimpleRegistry createDatabaseConfiguration() throws IOException {
            Properties properties = new Properties();
            properties.load(new FileInputStream("src/main/resources/application.properties"));
            BasicDataSource basic = new BasicDataSource();
            basic.setDriverClassName(properties.getProperty("PostgresDBClassname"));
            basic.setUsername(properties.getProperty("PostgresDBUsername"));
            basic.setPassword(properties.getProperty("PostgresDBPassword"));
            basic.setUrl(properties.getProperty("PostgresDBUrl"));
            SimpleRegistry registry = new SimpleRegistry();
            registry.bind("myDataSource", basic);
            return registry;
        }
    }

application.properties 档案:

PostgresDBUsername = username
PostgresDBPassword = password
PostgresDBClassname = org.postgresql.Driver
PostgresDBUrl = jdbc:postgresql://localhost:5432/postgres

我以下面的方式编写了路由器,并注意到我试图用myDataSource替换dataSource:

@Component
public class InsertRestService extends RouteBuilder {

    @Override
    public void configure() throws Exception {

        rest("/").produces("text/plain")
            .get("insert")
            .to("direct:hello");

        from("direct:hello")
            .transform().simple("INSERT INTO person (name, country) VALUES (DANY, LB)")
            .to("jdbc:dataSource") //spring boot starter jdbc creates the bean in the registry
            .transform().simple("Data inserted in Postgres successfully");
    }
}

出现以下错误:

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class

我在www.example.com文件PostgresDBUrl中提供了URLapplication.properties
另外请注意,我下载了jdbc驱动程序jar文件,并将其添加到模块路径中,右键单击包后,构建路径,配置构建路径x1c 0d1x那么我该怎么做才能解决这个问题呢?谢谢!!

eblbsuwk

eblbsuwk1#

我删除了配置文件(DatabaseConfiguration),并将www.example.com文件的内容替换application.properties为:

spring.datasource.url=jdbc:postgresql://localhost:5432/test
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.platform=postgres
spring.jpa.hibernate.ddl-auto=none

而且成功了!

pnwntuvh

pnwntuvh2#

检查您的pom.xml文件,并将其打包为war。这对我很有效。

<packaging>war</packaging>

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