java - 如何在spring中获取访问配置文件的路径

Question

我编写了一个 Spring 程序，其中以下类、接口(interface)和 xml 文件位于不同的包中。我使用 Eclipse Kepler。

选择客户端.java

package com.rajeev.spring.action;

import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import com.rajeev.spring.DAOI.Select;

/**
 * @author rajeev
 *
 * 
 */
public class SelectClient {

    /**
     * @param args
     */
    public static void main(String[] args) {
        String path=System.getProperty("user.dir");
        System.out.println(path+"/src/com/rajeev/spring/DAOImpl/SelectCfg.xml");
        Resource resource=new ClassPathResource(path+"/src/com/rajeev/spring/DAOImpl/SelectCfg.xml");
        XmlBeanFactory beanFactory=new XmlBeanFactory(resource);
        Object object=beanFactory.getBean("sb");
        Select select=(Select)object;
        System.out.println("emp name is:"+select.fetchName(101));
    }

}

问题是当我执行 SelectClient.java 时，出现以下错误

E:\javahyd\eclipse\Spring_DataSource_Object_Inject/src/com/rajeev/spring/DAOImpl/SelectCfg.xmlJan 17, 2014 11:41:43 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitionsINFO: Loading XML bean definitions from class path resource [E:/javahyd/eclipse/Spring_DataSource_Object_Inject/src/com/rajeev/spring/DAOImpl/SelectCfg.xml]Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [E:/javahyd/eclipse/Spring_DataSource_Object_Inject/src/com/rajeev/spring/DAOImpl/SelectCfg.xml]; nested exception is java.io.FileNotFoundException: class path resource [E:/javahyd/eclipse/Spring_DataSource_Object_Inject/src/com/rajeev/spring/DAOImpl/SelectCfg.xml] cannot be opened because it does not exist    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:341)    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)    at org.springframework.beans.factory.xml.XmlBeanFactory.(XmlBeanFactory.java:78)    at org.springframework.beans.factory.xml.XmlBeanFactory.(XmlBeanFactory.java:66)    at com.rajeev.spring.action.SelectClient.main(SelectClient.java:26)Caused by: java.io.FileNotFoundException: class path resource [E:/javahyd/eclipse/Spring_DataSource_Object_Inject/src/com/rajeev/spring/DAOImpl/SelectCfg.xml] cannot be opened because it does not exist    at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:158)    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:328)    ... 4 more

上面的异常，是由于路径。当我在 run(windows+r) 中使用相同的路径时，它正在打开特定的文件。我不想让我的配置文件脱离任何包。

Answer 1

ClassPathResource 用于引用类路径中资源的路径。 ClassPathResource中传递的path参数指的是类路径中的绝对路径。所以，使用

Resource resource=new ClassPathResource("com/rajeev/spring/DAOImpl/SelectCfg.xml");

尝试使用FileSystemResource来提及文件系统中的绝对路径