spring NoSuchBeanDefinitionException 至少有 1 个 bean 有资格作为此依赖项的自动装配候选者
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时间：2020-09-08 05:31:17 来源:igfitidea点击:
NoSuchBeanDefinitionException at least 1 bean which qualifies as autowire candidate for this dependency
提问by Peter Jurkovic
I have problem with Spring framework, I was searching for solution long time, but any result.
我对 Spring 框架有问题，我一直在寻找解决方案，但没有任何结果。
When I Deploying an application, I get Exception:
当我部署应用程序时，出现异常：
14.11.2012 0:37:23 org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
14.11.2012 0:37:23 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
14.11.2012 0:37:24 org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private sk.peterjurkovic.moro.service.UserService sk.peterjurkovic.moro.controller.UserController.userService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private sk.peterjurkovic.moro.dao.UserDao sk.peterjurkovic.moro.service.UserServiceImpl.userDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void sk.peterjurkovic.moro.dao.UserDaoImpl.setDataSource(javax.sql.DataSource); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
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.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:655)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:536)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1453)
at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1445)
at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:860)
at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:357)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1813)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private sk.peterjurkovic.moro.service.UserService sk.peterjurkovic.moro.controller.UserController.userService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private sk.peterjurkovic.moro.dao.UserDao sk.peterjurkovic.moro.service.UserServiceImpl.userDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void sk.peterjurkovic.moro.dao.UserDaoImpl.setDataSource(javax.sql.DataSource); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
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)
... 52 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private sk.peterjurkovic.moro.dao.UserDao sk.peterjurkovic.moro.service.UserServiceImpl.userDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void sk.peterjurkovic.moro.dao.UserDaoImpl.setDataSource(javax.sql.DataSource); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
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.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:848)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:790)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 54 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private sk.peterjurkovic.moro.dao.UserDao sk.peterjurkovic.moro.service.UserServiceImpl.userDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void sk.peterjurkovic.moro.dao.UserDaoImpl.setDataSource(javax.sql.DataSource); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
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)
... 65 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void sk.peterjurkovic.moro.dao.UserDaoImpl.setDataSource(javax.sql.DataSource); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
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.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:848)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:790)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 67 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void sk.peterjurkovic.moro.dao.UserDaoImpl.setDataSource(javax.sql.DataSource); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
... 78 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:924)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:793)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:551)
... 80 more
14.11.2012 0:37:24 org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
Here is the UserDaoImpl, where is DataSource injected
这是 UserDaoImpl，数据源注入的位置
@Component
public class UserDaoImpl implements UserDao {
private JdbcTemplate template;
@Override
public List<User> findAll(){
return template.query(Sql.SQL_QUERY_FIND_ALL ,new UserRowMapper<User>());
}
@Override
public User fintById(long id){
return template.queryForObject(Sql.SQL_QUERY_FIND_BY_ID, new Object[]{id}, new UserRowMapper<User>());
}
@Override
public void create(final User user){
KeyHolder keyHolder = new GeneratedKeyHolder();
PreparedStatementCreator psCreator = new PreparedStatementCreator() {
@Override
public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
PreparedStatement stmt = connection.prepareStatement(
Sql.SQL_QUERY_SAVE, Statement.RETURN_GENERATED_KEYS);
stmt.setString(1, user.getFirstName());
stmt.setString(2, user.getLastName());
stmt.setString(3, user.getEmail());
return stmt;
}
};
template.update(psCreator, keyHolder);
user.setId(keyHolder.getKey().longValue());
}
@Override
public void delete(User user){
template.update(Sql.SQL_QUERY_DELETE, new Object[]{ user.getId() });
}
@Autowired
@Qualifier("dataSource")
public void setDataSource(DataSource dataSource){
template = new JdbcTemplate(dataSource);
}
}
Application context
应用上下文
<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<mvc:annotation-driven/>
<context:component-scan base-package="sk.peterjurkovic.moro" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="jspViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<import resource="db-config.xml" />
<bean class="org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor" />
<aop:aspectj-autoproxy/>
<bean class="sk.peterjurkovic.moro.dao.UserDaoImpl">
<property name="dataSource" ref="dataSource" />
</bean>
<bean class="sk.peterjurkovic.moro.service.UserServiceImpl" />
</beans>
db-config file
数据库配置文件
<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<jdbc:embedded-database id="dataSource" type="DERBY">
<jdbc:script location="classpath:create-schema.sql" />
</jdbc:embedded-database>
<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
<constructor-arg ref="dataSource" />
</bean>
</beans>
Using Tomcat 7, Java 6, Spring version 3.1.0.RELEASE
使用 Tomcat 7、Java 6、Spring 版本 3.1.0.RELEASE
EDITthank you for help, its only moved to JdbcTemplate
编辑谢谢你的帮助，它只移到了 JdbcTemplate
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [org.springframework.jdbc.core.JdbcTemplate] 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:952)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:821)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:735)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
EDIT
编辑
problem solved. I had to include beans.xml into xx-servlet.xml config.
问题解决了。我必须将 beans.xml 包含到 xx-servlet.xml 配置中。
回答by MasterV
The setter injection is not applied properly. In spring you cannot call the new operator. look into setter and constructor injection. Here is an example of setter injection...Try this:
未正确应用 setter 注入。在 spring 中，您不能调用 new 运算符。查看 setter 和构造函数注入。下面是一个 setter 注入的例子......试试这个：
@Repository
public class UserDaoImpl implements UserDao {
@Autowired
private JdbcTemplate template;
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
@Override
public List<User> findAll(){
return this.template.query(Sql.SQL_QUERY_FIND_ALL ,new UserRowMapper<User>());
}
@Override
public User fintById(long id){
return this.template.queryForObject(Sql.SQL_QUERY_FIND_BY_ID, new Object[]{id}, new UserRowMapper<User>());
}
@Override
public void create(final User user){
...
}
@Override
public void delete(User user){
this.template.update(Sql.SQL_QUERY_DELETE, new Object[]{ user.getId() });
}
DBContext:
数据库上下文：
<jdbc:embedded-database id="dataSource" type="DERBY">
<jdbc:script location="classpath:create-schema.sql"/>
</jdbc:embedded-database>
<!--JDBC Template Bean...-->
<bean id="reportJdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource" />
</bean>
For repository/DAO classes use @Respositoryannotation, rather than @Component. Ensure that the base scan is enabled for the DAO classes so Spring can find and inject them. You don't have to explicit define the bean to be injected in the xml file with @Service, @Repository and @Controller annotations.
对于存储库/DAO 类，使用@Respository注释，而不是@Component。确保为 DAO 类启用基本扫描，以便 Spring 可以找到并注入它们。您不必使用@Service、@Repository 和@Controller 批注显式定义要在xml 文件中注入的bean。
<context:component-scan base-package="com.something.dao"/>
Hope that helps.
希望有帮助。
