@Resource按类名注射报错，大大们求教啊~~~~

Question

package com.free.dao;public interface PersonDao { public abstract void add();}package com.free.dao.impl;import com.free.dao.PersonDao;public class PersonDaoBean implements PersonDao {
public void add(){
System.out.println("执行PersonDaoBean中的add()方法");
}
}
<?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-2.5.xsd
                      http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd">
    <context:annotation-config/>
           
    <bean id="personDaos" class="com.free.dao.impl.PersonDaoBean" ></bean>       
<bean id="personService" class="com.free.service.impl.PersonServiceBean"  >
</bean><!-- 交给spring管理的bean 默认是单实例的 直接加载的 -->

</beans>  
package junit.test;import junit.framework.TestCase;import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;import com.free.service.PersonService;
public class SpringTest extends TestCase {
public void testInsertSpring(){
AbstractApplicationContext ac =new ClassPathXmlApplicationContext("beans.xml");
PersonService ps=(PersonService)ac.getBean("personService");
ps.save();
}
}package com.free.service.impl;
import javax.annotation.Resource;import org.springframework.beans.factory.annotation.Autowired;import com.free.dao.PersonDao;
import com.free.dao.impl.PersonDaoBean;
import com.free.service.PersonService;public class PersonServiceBean implements PersonService {
@Resource(type=PersonDaoBean.class) private PersonDao personDao;  
private String name;


public void init(){
System.out.println("init.......");
}

public PersonServiceBean() {
}
public void save(){
System.out.println(name);
personDao.add();
System.out.println("我是save方法");
}

public void destory(){
System.out.println("关闭打开的资源");
}


}小弟不才，刚学spring求教大大们。小弟特地把bean的name改成不一样，给@Resource按类名注射怎么报错了求999999999999
ERROR如下:org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personService': Injection of resources failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'personDao' is defined
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'personDao' is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:353)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedBeanDefinition(AbstractBeanFactory.java:916)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:243)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:197)
at org.springframework.beans.factory.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.injectResource(CommonAnnotationBeanPostProcessor.java:278)
at org.springframework.beans.factory.annotation.CommonAnnotationBeanPostProcessor$ResourceMetadata.injectResources(CommonAnnotationBeanPostProcessor.java:215)
at org.springframework.beans.factory.annotation.CommonAnnotationBeanPostProcessor.postProcessAfterInstantiation(CommonAnnotationBeanPostProcessor.java:139)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:412)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:287)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:91)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:75)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:65)
at junit.test.SpringTest.testInsertSpring(SpringTest.java:13)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:79)
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)

Answer 1

package com.free.dao.impl;import com.free.dao.PersonDao;
@Service(value = "personDao")
public class PersonDaoBean implements PersonDao {
    public void add(){
        System.out.println("执行PersonDaoBean中的add()方法");
    }
}public class PersonServiceBean implements PersonService {
    @Resource
 private PersonDao personDao;  
    private String name;
    
    
    public void init(){
        System.out.println("init.......");
    }
    
    public PersonServiceBean() {
    }
    public void save(){
        System.out.println(name);
        personDao.add();
        System.out.println("我是save方法");
    }
    
    public void destory(){
        System.out.println("关闭打开的资源");
    }
    
    
}

Answer 2

PersonServiceBean 这个类上面也加上@Service(value = "personService ")配置文件改为：<?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-2.5.xsd
                      http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd">
    <context:annotation-config/>
<context:component-scan base-package="com.free" />
</beans> 

Answer 3

spring视频上 没写那哥怎么可以运行啊

Answer 4

LZ配置和设置有问题
 @Resource(type=PersonDaoBean.class) 
private PersonDao personDao 
该为：
 @Resource("personDaos") --->就是在xml文件中的实现类的Id或是name 的值
private PersonDao personDao 
想用annotion的话，就全部使用吧

Answer 5

public static void main(String[] args) {
AbstractApplicationContext ac =new ClassPathXmlApplicationContext("beans.xml");
        PersonService ps=(PersonService)ac.getBean("personService");
        ps.save();
}运行的话写个main方法，测试一下。

Answer 6

这个是junit的方法 可以云新的

Answer 7

哈哈  是jar包版本落后的问题