@Resource按类名注射报错，大大们求教啊~~~~



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)

--------------------编程问答-------------------- 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");
    }


} --------------------编程问答-------------------- 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> --------------------编程问答-------------------- spring视频上没写。。。那哥怎么可以运行啊 --------------------编程问答-------------------- 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 --------------------编程问答-------------------- 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。 --------------------编程问答--------------------

引用 4 楼的回复:

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

我就是要用按类名注射，才特地改了id的名字的 --------------------编程问答--------------------

引用 5 楼的回复:

public static void main(String[] args) {
AbstractApplicationContext ac =new ClassPathXmlApplicationContext("beans.xml");
PersonService ps=(PersonService)ac.getBean("personService");
……

这个是junit的方法。。。可以云新的 --------------------编程问答-------------------- --------------------编程问答--------------------

哈哈是jar包版本落后的问题

补充：Java ,  Java EE