Spring3中的@value注解

在spring 3.0中，可以通过使用@value，对一些如xxx.properties文件
中的文件，进行键值对的注入，例子如下：

1 首先在applicationContext.xml中加入：

<beans xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd">
</beans>

<beans xmlns:util="http://www.springframework.org/schema/util"  
    xsi:schemaLocation="http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd">  
</beans>

 
 
   的命名空间，然后

2

<util:properties id="settings" location="WEB-INF/classes/META-INF/spring/test.properties" />

<util:properties id="settings" location="WEB-INF/classes/META-INF/spring/test.properties" />  

3 创建test.properties
   abc=123

4

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@RequestMapping("/admin/images")
@Controller
public class ImageAdminController {

    private String imageDir;
           @Value("#{settings['test.abc']}")
    public void setImageDir(String val) {
        this.imageDir = val;
    }


}

import org.springframework.beans.factory.annotation.Value;   
import org.springframework.stereotype.Controller;   
import org.springframework.web.bind.annotation.RequestMapping;   
  
@RequestMapping("/admin/images")   
@Controller   
public class ImageAdminController {   
  
    private String imageDir;   
           @Value("#{settings['test.abc']}")   
    public void setImageDir(String val) {   
        this.imageDir = val;   
    }   
  

}  

这样就将test.abc的值注入了imageDir中了
【转载地址】
http://jackyrong.iteye.com/blog/1330946