spring测试中发现的问题

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把spring 的lib下所有的jar包全部放入到buildpath下边，构建service.xml如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd">

  <bean id="Student" class="money.spring.test.Student">
    <!-- collaborators and configuration for this bean go here -->
  </bean>
<!-- 
  <bean id="StudentManager" class="money.spring.test.StudentManager">
      <property name=""></property>
  </bean>
 -->
  <!-- more bean definitions go here -->

</beans>

Student.java的内容

/**
 * 
 */
package money.spring.test;

/**
 * @author Administrator
 *
 */
public class Student {
    private String name;
    private int id;
    
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    
}

单元测试StudentTest.java的内容

package money.spring.test;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class StudentTest {

    @Test
    public void testStudent() {
        ApplicationContext context =
                new ClassPathXmlApplicationContext("service.xml");
        //Student stu=context.getBean("Student",Student.class);//泛型构造方法，不需要手动转换
        Student stu=(Student)context.getBean("Student");//返回object，需要手动转换
    }

}

这时出现如下错误提示

添加commons.logging.jar包后问题得到解决.