From bf40a0d81550d40ed096e8379fe7941718c6ff11 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sun, 17 May 2026 16:30:04 +0800
Subject: [PATCH] =?UTF-8?q?javaEEday05-=E5=88=86=E5=B1=82=E8=A7=A3?=
 =?UTF-8?q?=E8=80=A6-IOC&DI-DI=E8=AF=A6=E8=A7=A3?=
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---
 .../src/main/java/com/inmind/controller/EmpController.java   | 4 ++++
 .../src/main/java/com/inmind/service/impl/EmpServiceA.java   | 5 ++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/springboot-web-req-resp/src/main/java/com/inmind/controller/EmpController.java b/springboot-web-req-resp/src/main/java/com/inmind/controller/EmpController.java
index cc7fbab..0d96282 100644
--- a/springboot-web-req-resp/src/main/java/com/inmind/controller/EmpController.java
+++ b/springboot-web-req-resp/src/main/java/com/inmind/controller/EmpController.java
@@ -5,7 +5,9 @@ import com.inmind.pojo.Result;
 import com.inmind.service.EmpService;
 import com.inmind.service.impl.EmpServiceA;
 import com.inmind.utils.XmlParserUtils;
+import jakarta.annotation.Resource;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.stereotype.Component;
 import org.springframework.stereotype.Service;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -18,6 +20,8 @@ public class EmpController {
 
     //定义业务层对象
     @Autowired //运行时,IOC容器会提供该类型的bean对象,并赋值给该变量---依赖注入
+    @Qualifier("empServiceB")  //方式二：解决同一类型，有多个bean对象
+    //@Resource(name = "empServiceA")   方式三：解决同一类型，有多个bean对象
     private EmpService empService;//多态
 
     //定义一个获取员工列表的接口
diff --git a/springboot-web-req-resp/src/main/java/com/inmind/service/impl/EmpServiceA.java b/springboot-web-req-resp/src/main/java/com/inmind/service/impl/EmpServiceA.java
index c11bb21..75b60b5 100644
--- a/springboot-web-req-resp/src/main/java/com/inmind/service/impl/EmpServiceA.java
+++ b/springboot-web-req-resp/src/main/java/com/inmind/service/impl/EmpServiceA.java
@@ -4,9 +4,12 @@ import com.inmind.dao.EmpDao;
 import com.inmind.pojo.Emp;
 import com.inmind.service.EmpService;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Primary;
+import org.springframework.stereotype.Service;
 
 import java.util.List;
-
+//@Primary 方式一：解决同一类型，有多个bean对象
+@Service
 public class EmpServiceA implements EmpService {
     //获取dao层的对象，获取数据
     @Autowired