使用 @transactional 注释我的服务类的方法时遇到问题。这样的注释会在我的服务类自动装配的测试类中导致 NoSuchBeanDefinitionExcpetion。如果删除事务注释，它会再次正常工作。为什么会发生这种情况，我在 spring 文档中找不到线索。
这是我的 application-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<context:component-scan base-package="<mypackage...>" />
<import resource="data-context.xml"/>
<import resource="resources-context.xml"/>
<import resource="persistence-context.xml"/>
这是我的 persistence-context.xml 的一部分
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSourceConnection" />
<property name="configLocation"
value="classpath:configuration/mybatis/config.xml"></property>
</bean>
<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSourceConnection" />
</bean>
<tx:annotation-driven transaction-manager="txManager" />
<bean id="accessDao" class="dao.impl.AccessDaoImpl">
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
<bean id="utilitiesDao" class="dao.impl.UtilitiesDaoImpl">
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
<bean id="portafoglioDao" class="dao.impl.PortafoglioDaoImpl">
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
我的测试课的一部分
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:configuration/applicationContext.xml" })
public class MyTest {
@Autowired
ApplicationContext context;
@Autowired
DriverManagerDataSource dataSourceConnection;
@Autowired
AccessAppDelegate accessApp;
产生问题的类
@Service
public class AccessAppDelegate extends Delegate implements DelegateInterface {
private PersonalCodesManager pcm;
AccessApp accessReq;
@Override
@Transactional
public void elaborateRequestImpl() throws Exception {
accessReq = (AccessApp) requestBean;
if (accessReq.getLan() != null) {
lang = StringUtilities.toLan(accessReq.getLan());
accessDao.updateDeviceLanguage(accessReq.getUser().getImei(),
accessReq.getLan());
}
if (requestWrap.getRequestType().compareTo(
ApplicativeConsts.INTESTAZIONE_REQUEST_LOGIN) == 0)
elaborateRequestLogin();
else
elaborateRequestAttivazione();
}
some private methods...
public PersonalCodesManager getPcm() {
return pcm;
}
public void setPcm(PersonalCodesManager pcm) {
this.pcm = pcm;
}
@Override
public String getUserId() {
accessReq = (AccessApp) requestBean;
return accessReq.getUser().getId();
}
@Override
public Class getRequestType() {
return AccessApp.class;
}
}
班级代表
@Component
public class Delegate{
String jsonReq;
String jsonRes;
@Autowired
ApplicationContext ctx;
@Autowired
AccessDao accessDao;
Locale lang;
java.sql.Timestamp timestamp;
RequestWrapper requestWrap;
UserAndDeviceTable userInfo;
AuthUserTable auth;
BaseResponse responseBean;
BaseRequest requestBean;
public void elaborateRequest(String body,boolean authenticationRequired){
DelegateInterface endpointImplementation = (DelegateInterface) this;
timestamp = new java.sql.Timestamp(new java.util.Date().getTime());
if (body.startsWith("json=")){
body = body.split("json=")[1];
}
requestWrap = new RequestWrapper(body);
requestBean=requestWrap.getReq(endpointImplementation.getRequestType());
this.jsonReq = requestWrap.getRequestBody();
lang = StringUtilities.toLan("en");
try {
if (authenticationRequired) {
auth = this.accessDao.checkSessioneAperta(requestBean.getSessionID(), timestamp);
if(auth==null) {
throw new Exception("Unauthorized Access");
}else{
setUserInfo(auth.getEmail());
}
}else{
setUserInfo(endpointImplementation.getUserId());
}
if(userInfo!=null){
lang=StringUtilities.toLan(userInfo.getLanguage());
}
endpointImplementation.elaborateRequestImpl();
} catch (Exception e) {
responseBean= new BaseResponse(String.valueOf(ApplicativeConsts.RC_ERRORE),ctx.getMessage(ApplicativeConsts.MSG_ERRORE_GENERAL, null, lang));
e.printStackTrace();
}
try {
ObjectMapper mapper = new ObjectMapper();
this.jsonRes = mapper.writeValueAsString(responseBean);
} catch (Exception e) {
e.printStackTrace();
}
}
public ModelMap getResponse(ModelMap model) {
// TODO Auto-generated method stub
model.addAttribute(ApplicativeConsts.INTESTAZIONE_RESPONSE, responseBean);
return model;
}
public void setUserInfo(String email) {
List<UserAndDeviceTable> userList = accessDao.findUserAndDeviceTableByEmail(email);
if (userList.size()==1){
this.userInfo = userList.get(0);
}
}
public String getJsonReq() {
return jsonReq;
}
public String getJsonRes() {
return jsonRes;
}
public BaseResponse getResponseBean() {
return responseBean;
}
}
界面
public interface DelegateInterface {
public void elaborateRequestImpl() throws Exception;
public ModelMap getResponse(ModelMap response);
public String getUserId();
public Class getRequestType();
}
例外
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'TestClass': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.something.be.delegates.AccessAppDelegate it.something.controller.somethingControllerTestAuto.accessApp; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [it.something.be.delegates.AccessAppDelegate] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:374)
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:321)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:220)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:301)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:303)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.something.be.delegates.AccessAppDelegate it.something.controller.somethingControllerTestAuto.accessApp; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [it.something.be.delegates.AccessAppDelegate] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:506)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
... 26 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [it.something.be.delegates.AccessAppDelegate] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:924)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:793)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 28 more