Question

我创建了一个spring-boot2应用程序，还在AWS上启动了POSTGRES DB。在本地启动应用程序时，可以很好地连接到它。但是，当我右键单击template.yaml并选择“部署无服务器应用程序”时，部署就可以了。但是在日志中，我看到此错误： Caused by: java.lang.IllegalStateException: Cannot load driver class: org.postgresql.Driver 而且我所有的端点都返回了错误的网关502。

这是我的application.properties：

spring.datasource.driverClassName=org.postgresql.Driver
spring.datasource.url=myurl
spring.datasource.username=postgres
spring.datasource.password=mypassword
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=create

我的template.yaml：

Globals:
  Function:
    Timeout: 20

Resources:
  EmployeeFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: EmployeeTest
      Handler: com.test.LambdaHandler::handleRequest
      Runtime: java8
      MemorySize: 512
      Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object
        Variables:
          PARAM1: VALUE
      Events:
        GetResource:
          Type: Api
          Properties:
            Path: /{proxy+}
            Method: any
Outputs:
  EmployeeTestAPI:
    Description: URL for application
    Value: !Sub 'https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Stage/employee'
    Export:
      Name: EmployeeTestAPI

还有我的pom.xml：

<?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>org.example</groupId>
    <artifactId>EmployeeTest</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
    </parent>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

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

        <dependency>
            <groupId>com.amazonaws.serverless</groupId>
            <artifactId>aws-serverless-java-container-springboot2</artifactId>
            <version>[1.4,)</version>
        </dependency>


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

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

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

    <profiles>
        <profile>
            <id>boot</id>
            <activation>
                <property>
                    <name>boot</name>
                </property>
            </activation>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-maven-plugin</artifactId>
                    </plugin>
                </plugins>
            </build>
        </profile>
        <profile>
            <id>default</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-shade-plugin</artifactId>
                        <version>2.3</version>
                        <configuration>
                            <createDependencyReducedPom>false</createDependencyReducedPom>
                        </configuration>
                        <executions>
                            <execution>
                                <phase>package</phase>
                                <goals>
                                    <goal>shade</goal>
                                </goals>
                                <configuration>
                                    <artifactSet>
                                        <excludes>
                                            <exclude>org.apache.tomcat.embed:*</exclude>
                                        </excludes>
                                    </artifactSet>
                                </configuration>
                            </execution>
                        </executions>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>


</project>

此外，当我不在任何端点中使用postgres并将其从pom.xml中的依赖项中删除并删除我的application.properties时，没有错误，并且可以正常访问我的端点。为什么AWS Lambda无法选择postgres驱动程序？

Answer 1

我让它工作了，替换了注释掉的依赖项：

    <!--        <dependency>-->
<!--            <groupId>org.postgresql</groupId>-->
<!--            <artifactId>postgresql</artifactId>-->
<!--            <scope>runtime</scope>-->
<!--        </dependency>-->
        <!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>42.2.5</version>
        </dependency>

将应用程序部署到AWS Lambda上会引发Postgres驱动程序错误

1 个答案: