‘未能配置url:未指定’datasource‘属性，并且无法配置任何嵌入的数据源。’springboot应用程序出错

Question

我创建了一个springboot应用程序，它使用Spring Boot和Apache Camel JDBC组件在postgreSQL中插入记录。为此，我使用以下依赖项：

    <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>

至于数据库配置，我使用application.properties文件创建了以下java类：

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文件：

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

我用以下方式编写了路由器，并注意到我尝试用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");
    }
}

我得到了以下错误：

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application.properties文件PostgresDBUrl中提供了URL

那么我能做些什么来解决这个问题呢？谢谢你！！

Answer 1

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

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

它成功了！