java.lang.IllegalArgumentException異常處理的一種方法

我遇到的問題

用spring注解來加載bean，都是一個簡單的了，但是還是報了這樣一個錯java.lang.IllegalArgumentException

網上查了一下，說是jdk版本要1.7的，然后我就改了，就好了。

Person.java

package com.xiaostudy.service;

import org.springframework.stereotype.Component;

@Component("person")
public class Person {
    
}

applicationContext.xml

<?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.xsd
                              http://www.springframework.org/schema/context 
                              http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.xiaostudy.service"></context:component-scan>
</beans>

測試類Test.java

package com.xiaostudy.service;

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

import com.xiaostudy.service.Person;

public class Test {

    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        Person person = ac.getBean("person", Person.class);
        System.out.println(person);
    }

}

錯誤信息

Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [E:\IT\spring3\demo9\bin\com\xiaostudy\service\Person.class]; nested exception is java.lang.IllegalArgumentException

---

 

解決問題

1、把eclipse的jdk調整為1.7

2、新建項目的jdk選擇1.7

---