在开始研究使用 jspSmartUpload 不知道 PageContext 怎么获取，后来找到了替代的方法，
在做项目的时候编写了两个完整的上传下载 Action 方法，希望对大家能有些帮助。同时还
有上传时中午文件名会显示乱码的处理方法。
上传：
package com.wb.ekeng.web.action.file;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessages;
import com.wb.ekeng.ebo.BO_File;
import com.wb.ekeng.info.INFO_Admin;
import com.wb.ekeng.info.INFO_File;
import com.wb.ekeng.web.action.BaseAction;
import com.wb.ekeng.web.filemanage.File;
import com.wb.ekeng.web.filemanage.SmartUpload;
import com.wb.ekeng.web.util.Convertor;
public class ACT_AddFile extends BaseAction {
public ACT_AddFile() {
super();
}
public ActionForward doExcute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response, ActionMessages errors) throws
Exception {
//文件保存路径
String strSavePath ="/upload/file/";
//允许上传的文件类型
String strAllowExt ="jpg,jpeg,gif,bmp,txt,java";
//允许上传最大字节数
int maxSize =1048576;
//上传文件
SmartUpload upload=new SmartUpload();
upload.initialize(this.getServlet().getServletConfig(), request, response);
upload.upload("UTF-8");
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