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Failed to convert property value of type [java.lang.String] to required type [javax.sql.DataSource] for property 'dataSource' 这个错误 怎么改啊
发表在Java图书答疑 2008-10-22
是否精华
版块置顶:
这是报错信息:

log4j:WARN No appenders could be found for logger (org.springframework.core.CollectionFactory).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [D:\Documents and Settings\Administrator\MyHibernate\springHibernate\src\applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyAccessExceptionsException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1:[font color=#FF0000] org.springframework.beans.TypeMismatchException: Failed to convert property value of type [java.lang.String] to required type [javax.sql.DataSource] for property 'dataSource'[/font]
org.springframework.beans.PropertyAccessExceptionsException; nested PropertyAccessException details (1) are:
PropertyAccessException 1:
org.springframework.beans.TypeMismatchException: Failed to convert property value of type [java.lang.String] to required type [javax.sql.DataSource] for property 'dataSource'
at org.springframework.beans.BeanWrapperImpl.doTypeConversionIfNecessary(BeanWrapperImpl.java:949)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:690)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:570)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:735)
at org.springframework.beans.BeanWrapperImpl.setPropertyValues(BeanWrapperImpl.java:762)
at org.springframework.beans.BeanWrapperImpl.setPropertyValues(BeanWrapperImpl.java:751)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1065)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:863)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:382)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:144)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:277)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:321)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:89)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:74)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:65)
at Tester.main(Tester.java:12)


这是我的applicationContext.xml文件


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>


<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>

<property name="url" value="jdbc:mysql://localhost/test"/>
<property name="username" value="root"/>
<property name="password" value="wsq"/>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<idref local="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>./Test.hbm.xml</value></list>
</property></bean></beans>


这是我的test.hbm.xml文件:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="Test" table="mytest" catalog="test">
        <id name="testId" type="java.lang.Integer">
            <column name="test_id" />
            <generator class="identity"></generator>
        </id>
        <property name="name" type="java.lang.String">
            <column name="name" length="45" not-null="true" />
        </property>
    </class>
</hibernate-mapping>

这是我的javabean文件

// default package



/**
 * Test generated by MyEclipse Persistence Tools
 */

public class Test  implements java.io.Serializable {


    // Fields    

     private Integer testId;
     private String name;


    // Constructors

    /** default constructor */
    public Test() {
    }

    
    /** full constructor */
    public Test(String name) {
        this.name = name;
    }

   
    // Property accessors

    public Integer getTestId() {
        return this.testId;
    }
    
    public void setTestId(Integer testId) {
        this.testId = testId;
    }

    public String getName() {
        return this.name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
   
这是我的测试文件:

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;


public class Tester {

/**
 * @param args
 */
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext context = new FileSystemXmlApplicationContext("src/applicationContext.xml");
}

}





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精彩评论 1
小小邪
学分:0 LV1
2008-10-22
沙发
<idref local="dataSource" />
 应该是
<ref local="dataSource" />
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