在spring MVC的controller中获取ServletConfig

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在使用SmartUpload进行文件上传时，需要用到srevletConfig:

如果是在servlet中写当然是很容易实现的：

        private ServletConfig config;//初始化Servletfinal public void init(ServletConfig config)throws ServletException{this.config=config;}

init方法会在servlet初始化时获取到servletConfig.

但是在Controller中怎么获得呢？经过小编多方请教，可以通过继承ServletConfigAware,ServletContextAware这两个接口来实现：

package module.system.controller;import java.io.IOException;import javax.servlet.ServletConfig;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import module.system.common.FileLoad;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.context.ServletConfigAware;import org.springframework.web.context.ServletContextAware;/** * 文件上传下载. *  */@Controller@RequestMapping("/fileLoad")public class FileLoadController implements ServletConfigAware,ServletContextAware{private ServletContext servletContext;@Overridepublic void setServletContext(ServletContext arg0) {this.servletContext = arg0;}    private ServletConfig servletConfig;@Overridepublic void setServletConfig(ServletConfig arg0) {        this.servletConfig = arg0;}@RequestMapping(value = "/upload.do", method = RequestMethod.POST)@ResponseBody  //此注解表明返回值跳过视图处理部分，直接写入 http response body中public String upload(HttpServletRequest request,HttpServletResponse response) { FileLoad fileLoad = new FileLoad();try {fileLoad.upload(request, response,servletConfig);} catch (ServletException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return "";}}

里边这个upload方法是另外写的一个方法，将会在下一篇文章中介绍。通过这样就可以得到servletConfig了

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