SpringBoot一个接口多个实现类的调用方式总结
作者:yy_csdn1314
这篇文章主要介绍了SpringBoot一个接口多个实现类的调用方式,本文给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下
1、指定限定名注入实现类
1.1、定义一个接口
public interface AnimalService {
public void sound();
}1.2、创建多个实现类
@Service("s1")
public class CatService implements AnimalService {
@Override
public void sound() {
System.out.println("喵喵喵");
}
}@Service()
public class DogService implements AnimalService {
@Override
public void sound() {
System.out.println("汪汪汪");
}
}@Service("s3")
public class CattleService implements AnimalService {
@Override
public void sound() {
System.out.println("汪汪汪");
}
}1.3、指定限定名注入实现类
@RunWith(SpringRunner.class)
@SpringBootTest
public class Main {
@Autowired
@Qualifier(value = "s1")
AnimalService animalService1; //正常启动
//没有指定bean注入名字的,使用该类首字符小写的bean的名字
//使用默认的
@Resource(name = "dogService")
AnimalService animalService2; //正常启动
//通过@Resource注入,根据@Service指定的名称区分
@Resource(name = "s3")
AnimalService animalService3; //正常启动
@Test
public void test1() {
animalService1.sound();
animalService2.sound();
animalService3.sound();
}
}2、Map名注入实现类
2.1、定义一个接口
public interface AnimalService {
public void sound();
}2.2、创建多个实现类
@Service("s1")
public class CatService implements AnimalService {
@Override
public void sound() {
System.out.println("喵喵喵");
}
}2.3、枚举
public enum AnimalTypeEnum {
DOG(1, "狗狗", "dogService"),
CAT(2, "猫咪", "catService");
public Integer code;
public String msg;
public String service;
public static AnimalTypeEnum getAnimalTypeEnum (Integer code) {
return (AnimalTypeEnum )Arrays.stream(values()).filter((item) -> {
return item.code.equals(code);
}).findFirst().orElseThrow(() -> {
return new BusinessException("biz animal type is not exist");
});
}
private AnimalTypeEnum (final Integer code, final String msg, final String service) {
this.code = code;
this.msg = msg;
this.service = service;
}
}2.4、指定限定名注入实现类
@RunWith(SpringRunner.class)
@SpringBootTest
public class Main {
@Autowired
Map<String, AnimalService> animalServiceMap;
@Test
public void test1() {
String service = AnimalTypeEnum.getAnimalTypeEnum(1).service;
AnimalService animalService = animalServiceMap.get(service);
animalService.sound();
}
}以上就是SpringBoot一个接口多个实现类的调用方式的详细内容,更多关于SpringBoot一个接口多个实现类的资料请关注脚本之家其它相关文章!
