使用springboot结合线程池，分批分页读取数据库表源数据，经过逻辑加工处理后，生成结果数据插入另一张结果表

为了使用Spring Boot结合线程池处理数据库表的分批分页读取和后续加工，你可以遵循以下步骤：

1. 配置线程池：在application.properties或application.yml中配置线程池的基本参数。

# application.properties
threadpool.corePoolSize=5
threadpool.maxPoolSize=10
threadpool.queueCapacity=50
threadpool.keepAliveSeconds=60

2. 创建配置类，定义线程池的Bean：

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
 
@Configuration
@EnableAsync
public class ThreadPoolConfig {
 
    @Value("${threadpool.corePoolSize}")
    private int corePoolSize;
 
    @Value("${threadpool.maxPoolSize}")
    private int maxPoolSize;
 
    @Value("${threadpool.queueCapacity}")
    private int queueCapacity;
 
    @Value("${threadpool.keepAliveSeconds}")
    private int keepAliveSeconds;
 
    @Bean(name = "taskExecutor")
    public Executor taskExecutor() {
        ThreadPoolExecutor executor = new ThreadPoolExecutor(corePoolSize, maxPoolSize,
                keepAliveSeconds, TimeUnit.SECONDS,
                new LinkedBlockingQueue<>(queueCapacity));
        return executor;
    }
}

3. 创建服务类，使用@Async注解来异步执行数据处理任务。

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import java.util.concurrent.Future;
 
@Service
public class AsyncDataProcessingService {
 
    @Async("taskExecutor")
    public Future<Boolean> processDataBatch(List<DataItem> batch) {
        // 对数据批次进行处理的逻辑
        // ...
        return new AsyncResult<>(true);
    }
}

4. 创建数据库读取服务，分批查询数据库并提交给异步服务处理。

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.concurrent.Future;
import java.util.stream.Collectors;
 
@Service
public class DatabaseReadingService {
 
    @Autowired
    private AsyncDataProcessingService asyncDataProcessingService;
    @Autowired
    private YourDataRepository dataRepository;
 
    public void readAndProcessDataInBatches() {
        int pageNumber =