如何使用Mulesoft 4为Postgresql查找合适的驱动程序

Question

我建立了从Anypoint Studio 7.4到数据库的连接，并且我使用的是PostgreSQL版本42.2.1。

这是我的数据库配置：

错误响应：

org.mule.runtime.api.connection.ConnectionException: Could not obtain connection from data source
  Caused by: org.mule.extension.db.api.exception.connection.ConnectionCreationException: Could not obtain connection from data source
  Caused by: org.mule.runtime.extension.api.exception.ModuleException: java.sql.SQLException: Cannot get connection for URL jdbc:postgresql://myhost:port/mulesoft : No suitable driver found for jdbc:postgresql:myhost:port/mulesoft
  Caused by: java.sql.SQLException: Cannot get connection for URL jdbc:postgresql:myhost:port/mulesoft : No suitable driver found for jdbc:postgresql:myhost:port/mulesoft
    at org.mule.extension.db.internal.domain.connection.JdbcConnectionFactory.createConnection(JdbcConnectionFactory.java:57)
    at org.mule.extension.db.internal.domain.connection.DbConnectionProvider.connect(DbConnectionProvider.java:139)
    at org.mule.extension.db.internal.domain.connection.DbConnectionProvider.connect(DbConnectionProvider.java:71)

Answer 1

您需要使用configure按钮或手动将Postgresql JDBC驱动程序依赖项添加到pom。

示例pom：

<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>42.2.9</version>
</dependency>

您还需要将驱动程序groupId和artifactId添加到pom中Mule Maven插件的共享库部分，以便可以通过DB连接器进行访问。

示例：

...
<plugins>
    <plugin>
        <groupId>org.mule.tools.maven</groupId>
        <artifactId>mule-maven-plugin</artifactId>
        <version>3.3.5</version>
        <configuration>
            <sharedLibraries>
                <sharedLibrary>
                    <groupId>org.postgresql</groupId>
                    <artifactId>postgresql</artifactId>
                </sharedLibrary>
            </sharedLibraries>
        </configuration>
    </plugin>
</plugins>