异常org.springframework.beans.引起的异常，但我不知道为什么

Question

我是Spring的新人。我学习，但在学习过程中我出错了。我为Spring使用基于XML的配置，这里是编译错误：

线程“main”org . spring framework . beans . factory . beancreationexception中出现异常:创建在类路径资源[Beans.xml]中定义的名为“helloGeorgia”的bean时出错:设置属性值时出错；嵌套异常为org . spring framework . beans . notwritablepropertyexception:Bean类[com . tutorialspoint . hellogeorgia]的无效属性“werili”:Bean属性“wer Ili”不可写或具有无效的setter方法。setter的参数类型和getter的返回类型匹配吗？

但我不明白为什么.

下面是bean.xml文件:

<?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-3.0.xsd">

    <bean id="helloworld" class="com.tutorialspoint.HelloWorld">
        <property name="message" value = "Hello World" />
        <property name="werili" value = "Hello Hello" />
    </bean>


    <bean id="helloGeorgia" class="com.tutorialspoint.HelloGeorgia" 
             parent="helloworld">
        <property name="message" value="Hello Georgia" />
    </bean>
</beans>

以下是三个Java文件.java：

package com.tutorialspoint;

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



public class MainApp {
    public static void main(String[] args){
        ApplicationContext context = new ClassPathXmlApplicationContext("Beans.xml");

        HelloWorld f = (HelloWorld) context.getBean("helloworld");
        System.out.println(f.getMessage());

        HelloGeorgia georgia = (HelloGeorgia) context.getBean("helloGeorgia");
        System.out.println(georgia.getMessage());

    }
}

HelloWorld.java

package com.tutorialspoint;


public class HelloWorld {
    private String message;
    private String werili;

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public String getWerili() {
        return werili;
    }

    public void setWerili(String werili) {
        this.werili = werili;
    }
}

你好格鲁吉亚.java

package com.tutorialspoint;

public class HelloGeorgia {
    private String message;

    public String getMessage() {
        return message;

    }

    public void setMessage(String message) {
        this.message = message;
    }

}

请告诉我如何修理它。谢谢你。

Answer 1

查看您的Spring配置hello乔治亚预计是helloWorld bean的子级。在java类中，情况并非如此。要么您也应该在java中具有继承，要么至少；您应该在helloGeor中声明与getter/setter相同的字段。