注解 @Autowired @Qualifier @Resource 的区别

一、区别

1、@Autowired 按类型自动装配
2、@Qualifier 按名称进行装配,与@Autowired搭配使用
3、@Resource 可以先按名称再按类型自动进行装配，如果指定了名称，只能按名称进行装配，是J2EE规范，@Autowired和@Qualifier 是spring规范。

二、说明

　　 1、@Autowired这个注解是spring定义的，根据类型自动注入，如果Spring配置了component scan，并且要注入的接口只有一个实现的话，那么spring框架可以自动将interface于实现组装起来。

　　 2、一个接口有多个实现，那么就需要@Qualifier和@Autowired一起使用来标明。

　　3、@Resource是JDK1.6支持的注解，默认按照名称进行装配，名称可以通过name属性进行指定，如果没有指定name属性，当注解写在字段上时，默认取字段名，按照名称查找，如果注解写在setter方法上默认取属性名进行装配。当找不到与名称匹配的bean时才按照类型进行装配。但是需要注意的是，如果name属性一旦指定，就只会按照名称进行装配。如果name和type都使用，还是按name去匹配，匹配不到报错（这个是不容易被理解的地方）。

特别说明：@Resource 的type就是个鸡肋，不建议使用，容易引起歧义与混淆。

三、实战

1、@Autowired 按类型匹配。

A、定义了接口

 1 package com.yzc.springMVC.service;
 2 
 3 /**
 4  * 
 5  * @Title: AutowiredController.java
 6  * @Package: com.yzc.springMVC
 7  * @Description: 描述该文件做什么
 8  * @author yangzhancheng
 9  * @2020年4月19日:下午10:39:55
10  *
11  */
12 
13 public interface IAutowiredService {
14     
15     String action();
16 }

B、一个实现类

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: AutowiredServiceOne.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 按类型进行注解
10  * @author yangzhancheng
11  * @2020年4月19日:下午10:56:42
12  *
13  */
14 @Service
15 public class AutowiredServiceTYPE implements IAutowiredService{
16     
17     public String action(){
18         String msg = "AutowiredServiceTYPE：是按类型。";
19         return msg;
20     }
21 }

C、Controller 类中根据类型自动匹配

 1 package com.yzc.springMVC.controller;
 2 
 3 
 4 import org.springframework.beans.factory.annotation.Autowired;
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 import com.yzc.springMVC.service.IAutowiredService;
10 
11 
12 /**
13  * 
14  * @Title: AutowiredController.java
15  * @Package: com.yzc.springMVC
16  * @Description: 描述该文件做什么
17  * @author yangzhancheng
18  * @2020年4月19日:下午10:39:55
19  *
20  */
21 @Controller
22 @RequestMapping(value = "/autowired")
23 public class AutowiredController {
24 
25     /**
26      * 通过类自动匹配
27      */
28     @Autowired
29     private IAutowiredService autowiredService;
30     
31     @RequestMapping(value = "/action",produces = "application/json;charset=UTF-8")
32     @ResponseBody
33     public String action(){
34         String msg = autowiredService.action();
35         System.out.print(msg);
36         return msg;
37     }
38     
39     
40 }

E、运行结果

AutowiredServiceTYPE：是按类型。

2、@Autowired 按类型匹配，如果两个接口实现了本接口，通过类型匹配时出错。

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: AutowiredServiceOne.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 按名称进行注解
10  * @author yangzhancheng
11  * @2020年4月19日:下午10:56:42
12  *
13  */
14 @Service
15 public class AutowiredServiceNAME implements IAutowiredService{
16     
17     public String action(){
18         String msg = "AutowiredServiceTYPE：是按名称。";
19         return msg;
20     }
21 }

系统运行时报错，说明@Autowired 在spring加载时出现问题。

 1 四月 23, 2020 3:48:03 下午 org.springframework.context.support.AbstractApplicationContext refresh
 2 警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'autowiredController': Unsatisfied dependency expressed through field 'autowiredService'; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'com.yzc.springMVC.service.IAutowiredService' available: expected single matching bean but found 2: autowiredServiceNAME,autowiredServiceTYPE
 3 四月 23, 2020 3:48:03 下午 org.springframework.web.servlet.FrameworkServlet initServletBean
 4 严重: Context initialization failed
 5 org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'autowiredController': Unsatisfied dependency expressed through field 'autowiredService'; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'com.yzc.springMVC.service.IAutowiredService' available: expected single matching bean but found 2: autowiredServiceNAME,autowiredServiceTYPE
 6     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643)
 7     at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130)
 8     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
 9     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422)
10     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
11     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
12     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
13     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
14     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
15     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
16     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882)
17     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
18     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
19     at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
20     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
21     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
22     at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
23     at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
24     at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
25     at javax.servlet.GenericServlet.init(GenericServlet.java:158)
26     at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1144)
27     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
28     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:985)
29     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4887)
30     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5201)
31     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
32     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1412)
33     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1402)
34     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
35     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
36     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
37     at java.lang.Thread.run(Thread.java:745)
38 Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'com.yzc.springMVC.service.IAutowiredService' available: expected single matching bean but found 2: autowiredServiceNAME,autowiredServiceTYPE
39     at org.springframework.beans.factory.config.DependencyDescriptor.resolveNotUnique(DependencyDescriptor.java:220)
40     at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1268)
41     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1210)
42     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
43     ... 31 more
44 
45 四月 23, 2020 3:48:03 下午 org.apache.catalina.core.ApplicationContext log
46 严重: StandardWrapper.Throwable

其中本提示十分明确：

No qualifying bean of type 'com.yzc.springMVC.service.IAutowiredService' available: expected single matching bean but found 2: autowiredServiceNAME,autowiredServiceTYPE

2、@Autowired 和 @Qualifer 结合使用，在原来的注解上增加@Qualifer，指定名称

A、指定service的名称

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: AutowiredServiceOne.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 按名称进行注解
10  * @author yangzhancheng
11  * @2020年4月19日:下午10:56:42
12  *
13  */
14 @Service("autowiredServiceBYNAME")
15 public class AutowiredServiceNAME implements IAutowiredService{
16     
17     public String action(){
18         String msg = "AutowiredServiceTYPE：是按名称。";
19         return msg;
20     }
21 }

B、默认Service的名称是类名小写 autowiredServiceTYPE

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: AutowiredServiceOne.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 按类型进行注解
10  * @author yangzhancheng
11  * @2020年4月19日:下午10:56:42
12  *
13  */
14 @Service
15 public class AutowiredServiceTYPE implements IAutowiredService{
16     
17     public String action(){
18         String msg = "AutowiredServiceTYPE：是按类型。";
19         return msg;
20     }
21 }

C 、Controller类中内容

 1 package com.yzc.springMVC.controller;
 2 
 3 
 4 import org.springframework.beans.factory.annotation.Autowired;
 5 import org.springframework.beans.factory.annotation.Qualifier;
 6 import org.springframework.stereotype.Controller;
 7 import org.springframework.web.bind.annotation.RequestMapping;
 8 import org.springframework.web.bind.annotation.ResponseBody;
 9 
10 import com.yzc.springMVC.service.IAutowiredService;
11 
12 
13 /**
14  * 
15  * @Title: AutowiredController.java
16  * @Package: com.yzc.springMVC
17  * @Description: 描述该文件做什么
18  * @author yangzhancheng
19  * @2020年4月19日:下午10:39:55
20  *
21  */
22 @Controller
23 @RequestMapping(value = "/autowired")
24 public class AutowiredController {
25 
26     /**
27      * 通过类自动匹配
28      */
29     @Autowired
30     @Qualifier("autowiredServiceBYNAME")
31     private IAutowiredService autowiredService;
32     
33     @Autowired
34     @Qualifier("autowiredServiceTYPE")
35     private IAutowiredService autowiredServiceTYPE;
36     
37     @RequestMapping(value = "/action",produces = "application/json;charset=UTF-8")
38     @ResponseBody
39     public String action(){
40         String msg = autowiredService.action();
41         System.out.println(msg);
42         return msg;
43     }
44 
45 
46     
47     @RequestMapping(value = "/actionName",produces = "application/json;charset=UTF-8")
48     @ResponseBody
49     public String actionByName(){
50         String msg = autowiredServiceTYPE.action();
51         System.out.println(msg);
52         return msg;
53     }
54 
55     
56 }

运行结果

postMan请求地址：

http://localhost:8888/webdemo/autowired/action

运行结果

"AutowiredServiceTYPE：是按名称。"

postMan请求地址：

http://localhost:8888/webdemo/autowired/actionName

运行结果

"AutowiredServiceTYPE：是按类型。"

3、@Resource 使用情况

A、默认先按名字查找，如果没有名字，按类型匹配

 1 package com.yzc.springMVC.service;
 2 
 3 /**
 4  * 
 5  * @Title: IResourceService.java
 6  * @Package: com.yzc.springMVC.service
 7  * @Description: 通过Resource资源实现
 8  * @author yangzhancheng
 9  * @2020年4月23日:下午4:35:45
10  *
11  */
12 public interface IResourceService {
13     
14     String action();
15 }

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: ResourceServiceA.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 描述该文件做什么
10  * @author yangzhancheng
11  * @2020年4月23日:下午4:37:20
12  *
13  */
14 @Service
15 public class ResourceServiceA implements IResourceService{
16     
17     public String action(){
18         String msg = "ResourceServiceA";
19         return msg;
20     }
21 }

 1 package com.yzc.springMVC.controller;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 import com.yzc.springMVC.service.IResourceService;
10 
11 /**
12  * 
13  * @Title: ResourceController.java
14  * @Package: com.yzc.springMVC.controller
15  * @Description: 测试Resource
16  * @author yangzhancheng
17  * @2020年4月23日:下午4:34:08
18  *
19  */
20 @Controller
21 @RequestMapping(value = "/resource")
22 public class ResourceController {
23 
24     /**
25      * 先通过名字匹配，如果匹配不到，报错.本例子为找不到，报错
26      */
27     @Resource
28     private IResourceService resourceService;
29 
30     @RequestMapping(value = "/action", produces = "application/json;charset=UTF-8")
31     @ResponseBody
32     public String action() {
33         String msg = resourceService.action();
34         System.out.println(msg);
35         return msg;
36     }
37 
38 }

POSTman调用

1 http://localhost:8888/webdemo/resource/action

运行结果

1 "ResourceServiceA"

B、默认先按名字查找，如果匹配到对应的名称的资源，不再按类型匹配

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: ResourceServiceA.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 描述该文件做什么
10  * @author yangzhancheng
11  * @2020年4月23日:下午4:37:20
12  *
13  */
14 @Service
15 public class ResourceServiceA implements IResourceService{
16     
17     public String action(){
18         String msg = "ResourceServiceA";
19         return msg;
20     }
21 }

定义名称为resourceServiceByName

 1 package com.yzc.springMVC.service;
 2 
 3 import org.springframework.stereotype.Service;
 4 
 5 /**
 6  * 
 7  * @Title: ResourceServiceA.java
 8  * @Package: com.yzc.springMVC.service
 9  * @Description: 描述该文件做什么
10  * @author yangzhancheng
11  * @2020年4月23日:下午4:37:20
12  *
13  */
14 @Service("resourceServiceByName")
15 public class ResourceServiceB implements IResourceService{
16     
17     public String action(){
18         String msg = "ResourceServiceB";
19         return msg;
20     }
21 }

在ResourceController，用@Resource匹配名称类型

 1 package com.yzc.springMVC.controller;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 import com.yzc.springMVC.service.IResourceService;
10 
11 /**
12  * 
13  * @Title: ResourceController.java
14  * @Package: com.yzc.springMVC.controller
15  * @Description: 测试Resource
16  * @author yangzhancheng
17  * @2020年4月23日:下午4:34:08
18  *
19  */
20 @Controller
21 @RequestMapping(value = "/resource")
22 public class ResourceController {
23 
24     /**
25      * 先通过名字匹配，如果匹配到，不在匹配类型
26      */
27     @Resource
28     private IResourceService resourceServiceByName;
29 
30     @RequestMapping(value = "/action", produces = "application/json;charset=UTF-8")
31     @ResponseBody
32     public String action() {
33         String msg = resourceServiceByName.action();
34         System.out.println(msg);
35         return msg;
36     }
37 
38 }

POSTMAN 执行

1 http://localhost:8888/webdemo/resource/action

运行结果

1 "ResourceServiceB"

先通过名字找的。

C、如果指定了名称，只找对应名称，否则报错

注解了一个不存名字的，虽然类型都存在 @Resource(name="resourceServiceByNameOther")

 1 package com.yzc.springMVC.controller;
 2 
 3 import javax.annotation.Resource;
 4 
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 import com.yzc.springMVC.service.IResourceService;
10 
11 /**
12  * 
13  * @Title: ResourceController.java
14  * @Package: com.yzc.springMVC.controller
15  * @Description: 测试Resource
16  * @author yangzhancheng
17  * @2020年4月23日:下午4:34:08
18  *
19  */
20 @Controller
21 @RequestMapping(value = "/resource")
22 public class ResourceController {
23 
24     /**
25      * 先通过名字匹配，如果匹配到，不在匹配类型
26      */
27     @Resource(name="resourceServiceByNameOther")
28     private IResourceService resourceServiceByName;
29 
30     @RequestMapping(value = "/action", produces = "application/json;charset=UTF-8")
31     @ResponseBody
32     public String action() {
33         String msg = resourceServiceByName.action();
34         System.out.println(msg);
35         return msg;
36     }
37 
38 }

启动报错

  1 四月 23, 2020 6:18:43 下午 org.springframework.context.support.AbstractApplicationContext refresh
  2 警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'resourceServiceByNameOther' available
  3 四月 23, 2020 6:18:43 下午 org.springframework.web.servlet.FrameworkServlet initServletBean
  4 严重: Context initialization failed
  5 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'resourceServiceByNameOther' available
  6     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:337)
  7     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422)
  8     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
  9     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
 10     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
 11     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
 12     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
 13     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
 14     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882)
 15     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
 16     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
 17     at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
 18     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
 19     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
 20     at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
 21     at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
 22     at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
 23     at javax.servlet.GenericServlet.init(GenericServlet.java:158)
 24     at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1144)
 25     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
 26     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:985)
 27     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4887)
 28     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5201)
 29     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
 30     at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3761)
 31     at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:297)
 32     at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5539)
 33     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1381)
 34     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1385)
 35     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1385)
 36     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1353)
 37     at java.lang.Thread.run(Thread.java:745)
 38 Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'resourceServiceByNameOther' available
 39     at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:808)
 40     at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1279)
 41     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:297)
 42     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
 43     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454)
 44     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543)
 45     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513)
 46     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653)
 47     at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:239)
 48     at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130)
 49     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334)
 50     ... 31 more
 51 
 52 四月 23, 2020 6:18:43 下午 org.apache.catalina.core.ApplicationContext log
 53 严重: StandardWrapper.Throwable
 54 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'resourceServiceByNameOther' available
 55     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:337)
 56     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422)
 57     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
 58     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
 59     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
 60     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
 61     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
 62     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
 63     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882)
 64     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
 65     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
 66     at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
 67     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
 68     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
 69     at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
 70     at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
 71     at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
 72     at javax.servlet.GenericServlet.init(GenericServlet.java:158)
 73     at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1144)
 74     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
 75     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:985)
 76     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4887)
 77     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5201)
 78     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
 79     at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3761)
 80     at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:297)
 81     at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5539)
 82     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1381)
 83     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1385)
 84     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1385)
 85     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1353)
 86     at java.lang.Thread.run(Thread.java:745)
 87 Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'resourceServiceByNameOther' available
 88     at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:808)
 89     at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1279)
 90     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:297)
 91     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
 92     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454)
 93     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543)
 94     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513)
 95     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653)
 96     at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:239)
 97     at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130)
 98     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334)
 99     ... 31 more
100 
101 四月 23, 2020 6:18:43 下午 org.apache.catalina.core.StandardContext loadOnStartup
102 严重: Servlet [spring] in web application [/webdemo] threw load() exception
103 org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'resourceServiceByNameOther' available
104     at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:808)
105     at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1279)
106     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:297)
107     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
108     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454)
109     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543)
110     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513)
111     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653)
112     at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:239)
113     at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130)
114     at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334)
115     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422)
116     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
117     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
118     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
119     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
120     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
121     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
122     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882)
123     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
124     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
125     at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
126     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
127     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
128     at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
129     at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
130     at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
131     at javax.servlet.GenericServlet.init(GenericServlet.java:158)
132     at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1144)
133     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
134     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:985)
135     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4887)
136     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5201)
137     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
138     at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3761)
139     at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:297)
140     at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5539)
141     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1381)
142     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1385)
143     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1385)
144     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1353)
145     at java.lang.Thread.run(Thread.java:745)
146 
147 四月 23, 2020 6:18:43 下午 org.apache.catalina.core.StandardContext reload
148 信息: Reloading Context with name [/webdemo] is completed

无法识别bean :No bean named 'resourceServiceByNameOther' available

posted on 2020-04-23 15:41 茫然的法庭阅读(1069) 评论(0) 收藏举报

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