springboot多线程查询
时间: 2023-10-20 19:11:28 浏览: 91
在Spring Boot中进行多线程查询可以使用Java中的线程和Executor框架。以下是一个简单的示例:
1. 在Spring Boot应用程序中创建一个线程池:
```
@Configuration
@EnableAsync
public class AppConfig {
@Bean
public Executor taskExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(4);
executor.setMaxPoolSize(4);
executor.setQueueCapacity(500);
executor.setThreadNamePrefix("MyExecutor-");
executor.initialize();
return executor;
}
}
```
2. 创建一个异步方法,该方法使用上面创建的线程池执行查询:
```
@Service
public class MyService {
@Autowired
private MyRepository repository;
@Async
public CompletableFuture<List<MyEntity>> getAllEntities() {
List<MyEntity> entities = repository.findAll();
return CompletableFuture.completedFuture(entities);
}
}
```
3. 在控制器中调用异步方法:
```
@RestController
public class MyController {
@Autowired
private MyService service;
@GetMapping("/entities")
public CompletableFuture<List<MyEntity>> getAllEntities() {
return service.getAllEntities();
}
}
```
这将使用异步方法在后台线程池中执行查询,并在查询完成后返回结果。
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