Spring:设置一个简单的PropertyPlaceholderConfigurer示例

对此的解决方案可能非常简单,但我不确定我缺少什么.这就是我拥有的,PropertyPlaceholderConfigurer不会取代的${...}.

/* ---- org/company/springtest/Test.java: ---- */
package org.company.springtest;

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

public class Test {
    public static void main( String... args ) {
         Resource res = new FileSystemResource("conf/xml/context2.xml");
             XmlBeanFactory beanFactory = new XmlBeanFactory(res);
             TestApp app = (TestApp) beanFactory.getBean("testApp");
             app.print();
    }   
}


/* ---- org/company/springtest/TestApp.java: ---- */
package org.company.springtest;
import org.springframework.beans.factory.annotation.Required;

public class TestApp {
    private String m_message;

    public void setMessage( String message ) {
         m_message = message;
    }

    public void print() {
        System.out.println(m_message);
    }
}

/* ---- conf/xml/context2.xml: ---- */



    
        
    
    
         
    


/* ---- conf/xml/test.properties: ---- */
test.message=Hello world!

以下是运行Test时的输出:

Feb 17, 2009 11:23:06 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from file [C:\eclipse\workspace\SpringTest\conf\xml\context2.xml]
${test.message}

看起来配置器没有替换属性值......

也许尝试使用ApplicationContext而不是BeanFactory？