spring实用程序项目 - 在Ubuntu上的java.io.FileNotFoundException

Question

我刚接触春天。 我尝试用奇怪的异常FileNotFoundException编写简单的项目和堆栈。

在我看来，加载app-context.xml是一个问题。但我确定设置正确的绝对路径。

有什么建议吗？

主要代码：

package com.prospring.ch2;

public class HelloWorldSpringDI {

    public static void main(String[] args) {
        ApplicationContext ctx = new ClassPathXmlApplicationContext(
                "/home/nazar_art/workspace/ch2/src/main/resources/META-INF/spring/app-context.xml");
        MessageRenderer mr = ctx.getBean("renderer", MessageRenderer.class);
        mr.render();
    }
}

app-context.xml的内容：

    <?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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <bean id="provider" class="com.prospring.ch2.HelloWorldMessageProvider" />
    <bean id="rendere" class="com.prospring.ch2.StandartOutMessageRenderer" 
        p:messageProvider-ref="provider" />

    <!--<description>Example configuration to get you started.</description --> 
    <!-- context:component-scan base-package="com.prospring.ch2" />  -->
</beans>

控制台消息的摘要：

14:24:06,360  INFO t.support.ClassPathXmlApplicationContext: 456 - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@3f62e847: startup date [Wed Nov 13 14:24:06 EET 2013]; root of context hierarchy
14:24:06,509  INFO eans.factory.xml.XmlBeanDefinitionReader: 315 - Loading XML bean definitions from class path resource [home/nazar_art/workspace/ch2/src/main/resources/META-INF/spring/app-context.xml]
Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [home/nazar_art/workspace/ch2/src/main/resources/META-INF/spring/app-context.xml]; nested exception is java.io.FileNotFoundException: class path resource [home/nazar_art/workspace/ch2/src/main/resources/META-INF/spring/app-context.xml] cannot be opened because it does not exist

我在终端中检查了app-context.xml 的路径，看起来一切正常：

nazar_art@nazar-desktop:~/workspace/ch2/src/main/resources/META-INF/spring$ pwd
/home/nazar_art/workspace/ch2/src/main/resources/META-INF/spring
nazar_art@nazar-desktop:~/workspace/ch2/src/main/resources/META-INF/spring$ ls -lg
total 4
-rw-rw-r-- 1 nazar_art 867 Nov 13 14:25 app-context.xml

以下是我的看法：

• 如何解决这个问题？

Answer 1

您正在使用类路径应用程序上下文加载器ClassPathXmlApplicationContext并将绝对路径传递给它。

您需要使用FileSystemXmlApplicationContext

如果要使用ClassPathXmlApplicationContext，则必须确保app-context.xml位于应用程序的类路径中并传递相应的资源名称，该名称与文件系统上的绝对路径不同

Answer 2

使用

public static void main(String[] args) {
    ApplicationContext ctx = new FileSystemXmlApplicationContext(
            "/home/nazar_art/workspace/ch2/src/main/resources/META-INF/spring/app-context.xml");
    ...
}

或

public static void main(String[] args) {
    ApplicationContext ctx = new ClassPathXmlApplicationContext(
            "META-INF/spring/app-context.xml");
  ...
}

FileSystemXmlApplicationContext

ClassPathXmlApplicationContext