spring mvc 静态资源版本控制

<bean class="cn.zno.smse.common.context.VersionServletContext"></bean>

package cn.zno.smse.common.context;

import java.util.Date;

import javax.servlet.ServletContext;

import org.springframework.web.context.ServletContextAware;

public class VersionServletContext implements ServletContextAware {

    private ServletContext servletContext;
    
    @Override
    public void setServletContext(ServletContext servletContext) {
        this.servletContext=servletContext; 
        getServletContext().setAttribute("resouceVersion", new Date().getTime()); 
    }
    
    public ServletContext getServletContext() {  
        return servletContext;  
    }  
}

<script type="text/javascript" src="js/common.js?v=${resouceVersion}"></script>