autowire异常的三个情况

  1. 2010-3-11 16:06:00 net.sf.ehcache.config.ConfigurationFactory parseConfiguration  
  2. 警告: No configuration found. Configuring ehcache from ehcache-failsafe.xml  found in the classpath: jar:file:/E:/kenny/%e9%a1%b9%e7%9b%ae/shops/webapp/WEB-INF/lib/ehcache-1.6.1.jar!/ehcache-failsafe.xml  
  3. 2010-03-11 16:06:02,734 [main] ERROR [org.springframework.test.context.TestContextManager] - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@1292d12] to prepare test instance [com.zzh.entity.product.BrandServiceImplTest@4e32c8]  
  4. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.zzh.entity.product.BrandServiceImplTest': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.service.product.impl.BrandServiceImpl com.zzh.entity.product.BrandServiceImplTest.brandServiceImpl; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean  
  5.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)  
  6.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)  
  7.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:329)  
  8.     at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110)  
  9.     at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)  
  10.     at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:255)  
  11.     at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:111)  
  12.     at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:148)  
  13.     at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)  
  14.     at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)  
  15.     at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)  
  16.     at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)  
  17.     at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)  
  18.     at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97)  
  19.     at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)  
  20.     at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)  
  21.     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)  
  22.     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)  
  23.     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)  
  24.     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)  
  25. Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.service.product.impl.BrandServiceImpl com.zzh.entity.product.BrandServiceImplTest.brandServiceImpl; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean  
  26.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)  
  27.     at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)  
  28.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:240)  
  29.     ... 19 more  
  30. Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean  
  31.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)  
  32.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)  
  33.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)  
  34.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)  
  35.     at java.security.AccessController.doPrivileged(Native Method)  
  36.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)  
  37.     at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)  
  38.     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)  
  39.     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)  
  40.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)  
  41.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)  
  42.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:671)  
  43.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:610)  
  44.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:412)  
  45.     ... 21 more  
  46. Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean  
  47.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)  
  48.     at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)  
  49.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:240)  
  50.     ... 34 more  
  51. Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean  
  52.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:613)  
  53.     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:412)  
  54.     ... 36 more  

 autowire异常主要由三个情况发生的

像上面的情况是BrandDao没有注入，


1。你的BrandServiceImpl必须以@Service或@Component注解才行。

2。自动写入的时候把接口写成实现类了 
@Autowired 
private BrandServiceImpl      brandServiceImpl; 
应该是 
@Autowired 
private BrandService    brandService ;

3.在BrandDao 类上加上@Repository注解

在

package com.biber.yxyz.service.impl.leave;

import oracle.sql.DATE;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.biber.yxyz.service.leave.TbLeaveRegisterServiceI;
import com.biber.yxyz.service.student.TbStudentServiceI;

import org.jeecgframework.core.common.service.impl.CommonServiceImpl;
import org.jeecgframework.web.system.service.SystemService;

import com.biber.yxyz.entity.leave.TbLeaveRegisterEntity;
import com.biber.yxyz.entity.student.TbStudentEntity;

import java.util.Date;
import java.util.List;
import java.util.UUID;
import java.io.Serializable;

@Service("tbLeaveRegisterService")
@Transactional
public class TbLeaveRegisterServiceImpl extends CommonServiceImpl implements TbLeaveRegisterServiceI {


@Autowired
private SystemService systemService;

//@autowired（如果你不小心在这里加了这个，会出现autowired异常，因为这个类已经存在了 不需要注入）

private TbLeaveRegisterServiceI tbLeaveRegisterService;
@Autowired
private TbStudentServiceI tbStudentService;

public <T> void delete(T entity) {
super.delete(entity);
//执行删除操作配置的sql增强
this.doDelSql((TbLeaveRegisterEntity)entity);
}

public <T> Serializable save(T entity) {
Serializable t = super.save(entity);
//执行新增操作配置的sql增强
this.doAddSql((TbLeaveRegisterEntity)entity);
return t;
}

public <T> void saveOrUpdate(T entity) {
super.saveOrUpdate(entity);
//执行更新操作配置的sql增强
this.doUpdateSql((TbLeaveRegisterEntity)entity);
}

/**
* 默认按钮-sql增强-新增操作
* @param id
* @return
*/
public boolean doAddSql(TbLeaveRegisterEntity t){
return true;
}
/**
* 默认按钮-sql增强-更新操作
* @param id
* @return
*/
public boolean doUpdateSql(TbLeaveRegisterEntity t){
return true;
}
/**
* 默认按钮-sql增强-删除操作
* @param id
* @return
*/
public boolean doDelSql(TbLeaveRegisterEntity t){
return true;
}
/**
* 生成迟到信息
* @param
* @return
*/
public void beforeCount(){
List<TbLeaveRegisterEntity> tList=systemService.findByProperty(TbLeaveRegisterEntity.class, "type", "1");
Date date=new Date();
for(TbLeaveRegisterEntity a:tList){
if(date.after(a.getEndtime())){
a.setType("0");
tbLeaveRegisterService.saveOrUpdate(a);
TbStudentEntity tS=systemService.getEntity(TbStudentEntity.class, a.getStudent().getId());
tS.setMatter("0");
tS.setLeave(null);
tbStudentService.saveOrUpdate(tS);
}
}

}
/**
* 针对考勤报表时间内的处理
* @param
* @return
*/
public void afterCount(){
List<TbLeaveRegisterEntity> tList=systemService.findByProperty(TbLeaveRegisterEntity.class, "type", "1");
Date date=new Date();
for(TbLeaveRegisterEntity a:tList){
if(date.before(a.getEndtime())&&date.after(a.getCreatetime())){
a.setType("8");
tbLeaveRegisterService.saveOrUpdate(a);
TbStudentEntity tS=systemService.getEntity(TbStudentEntity.class, a.getStudent().getId());
tS.setMatter("1");
tbStudentService.saveOrUpdate(tS);
}
}

}
/**
* 替换sql中的变量
* @param sql
* @return
*/
public String replaceVal(String sql,TbLeaveRegisterEntity t){
sql = sql.replace("#{id}",String.valueOf(t.getId()));
sql = sql.replace("#{begintime}",String.valueOf(t.getBegintime()));
sql = sql.replace("#{endtime}",String.valueOf(t.getEndtime()));
sql = sql.replace("#{type}",String.valueOf(t.getType()));
sql = sql.replace("#{earlyafter}",String.valueOf(t.getEarlyafter()));
// sql = sql.replace("#{departid}",String.valueOf(t.getDepart().getId()));
//sql = sql.replace("#{studentid}",String.valueOf(t.getStudent().getId()));
sql = sql.replace("#{createtime}",String.valueOf(t.getCreatetime()));
sql = sql.replace("#{updatetime}",String.valueOf(t.getUpdatetime()));
sql = sql.replace("#{status}",String.valueOf(t.getStatus()));
sql = sql.replace("#{createuser}",String.valueOf(t.getCreateuser()));
sql = sql.replace("#{shuoming}",String.valueOf(t.getShuoming()));
sql = sql.replace("#{name}",String.valueOf(t.getName()));
sql = sql.replace("#{banji}",String.valueOf(t.getBanji()));
sql = sql.replace("#{UUID}",UUID.randomUUID().toString());
return sql;
}
}

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原文地址：https://www.cnblogs.com/mrdoor/p/4690389.html