autowire异常的三个情况

2010-3-11 16:06:00 net.sf.ehcache.config.ConfigurationFactory parseConfiguration
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
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]
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
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:329)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:255)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:111)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:148)
    at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
    at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
    at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
    at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
    at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.service.product.impl.BrandServiceImpl com.zzh.entity.product.BrandServiceImplTest.brandServiceImpl; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)
    at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:240)
    ... 19 more
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
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:671)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:610)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:412)
    ... 21 more
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
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)
    at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:240)
    ... 34 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching bean
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:613)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:412)
    ... 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;
}
}