代码优化之工厂

本文主要是介绍代码优化之工厂，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1. 定义抽象类

public interface PullDataService{void pullData();
}

2. 定义各自得类型并实现该接口

@Service("note")
public class NoteService implements PullDataService{@Overridepublic void pullData(){System.out.println("node");}
}
@Service("order")
public class OrderService implements PullDataService{@Overridepublic void pullData(){System.out.println("order");}
}

3. 项目启动生成工厂

import lombok.RequiredArgsConstructor;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;import java.util.HashMap;
import java.util.Map;@Component
@RequiredArgsConstructor
public class ServiceFactory implements ApplicationRunner{public static final Map<String,PullDataService> SERVICE_MAP =new HashMap<>();private final ApplicationContext applicationContext;@Overridepublic void run(ApplicationArguments args){Map<String, PullDataService> beansOfType = applicationContext.getBeansOfType(JkyService.class);beansOfType.forEach(SERVICE_MAP::put);}public PullDataService getService(String serviceName){return SERVICE_MAP.get(serviceName);}
}

4. 使用

    private final ServiceFactory serviceFactory;@GetMapping("/x")@ApiOperation(value = "x")public void x(@RequestParam("service")String service){serviceFactory.getService(service).pullData();}

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