java Spring批处理：无法为数据库类型NONE确定嵌入式数据库驱动程序类

Question

我刚开始学习spring batch，之前没有spring batch的经验

我从一开始就下载了一个模板。春天io和选定的以下内容

在此之后，我在IntelliJ IDE中导入了该项目，并做了以下更改

添加了作业配置类：

package io.spring.helloworld.configuration;

import org.springframework.batch.core.Job;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration  //For spring configuration
@EnableBatchProcessing  //bootstrap all the infra needed to run spring batch
public class jobConfiguration {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;


    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Bean
    public Step step1() {
        return stepBuilderFactory.get("step1")
                .tasklet(new Tasklet() {
                    @Override
                    public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                        System.out.println("Hello World");
                        return RepeatStatus.FINISHED;
                    }
                }).build();
    }

    @Bean
    public Job HelloWorld() {
        return jobBuilderFactory.get("HelloWorldJob")
                .start(step1())
                .build();


    }

}

这就是我的入门课的样子

package io.spring.helloworld;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;

@SpringBootApplication

public class HelloWorldApplication {

    public static void main(String[] args) {
        SpringApplication.run(HelloWorldApplication.class, args);

        System.exit(0);
    }
}

我没有接触或修改任何类\配置。但当我运行应用程序时，我会收到以下消息：

Description:

Cannot determine embedded database driver class for database type NONE

Action:

If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).

我能做些什么来修复这个错误

Answer 1

要解决此错误，有两种方法：

方法1：

尝试添加以下注释：

@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})

例如：

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class HelloWorldApplication {
  -
}

方法2：

您可以在application.properties文件中添加以下行

spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration