Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException: 
Annotation-specified bean name 'helloIntfImpl' for bean class [dyyx.intf.b.HelloIntfImpl] conflicts with existing, non-compatible bean definition of same name and class [dyyx.intf.a.HelloIntfImpl]





package dyyx.intf.a;
import org.springframework.stereotype.Service;
@Service
public class HelloIntfImpl implements HelloIntf{
    public String hello(String name){
        return "hello a,"+name+","+this.getClass();
    }
}




package dyyx.intf.b;
import org.springframework.stereotype.Service;
@Service
public class HelloIntfImpl implements HelloIntf {
    public String hello(String name){
        return "hello b,"+name+","+this.getClass();
    }
}




package dyyx;

import dyyx.intf.a.HelloIntf;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloAController {
    @Autowired
    HelloIntf intf;
    @RequestMapping("/a/hello")
    public String hello(){
        return intf.hello("cat");

    }
}



package dyyx;

import dyyx.intf.b.HelloIntf;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloBController {
    @Autowired
    HelloIntf intf;
    @RequestMapping("/b/hello")
    public String hello(){
        return intf.hello("cat");
    }
}


http://127.0.0.1:8088/a/hello
hello a,cat,class dyyx.intf.a.HelloIntfImpl

http://127.0.0.1:8088/b/hello
hello b,cat,class dyyx.intf.b.HelloIntfImpl



类名相同（包不同） ，spring bean name 冲突 
给 a包下的 指定 bean name ，问题解决 ，其他都不用动
注入时     @Autowired  会根据具体类型找到 对应的 bean 
@Autowired默认按byType自动注入


@Service("HelloIntfImplA")
public class HelloIntfImpl implements HelloIntf



https://gitee.com/dyyx/hellocode/tree/master/demo/springbootdemo/src/main/java/dyyx