如何用struts获取客户端文件的2进制流。

1.FormFile
This interface represents a file that has been uploaded by a client.
2.MultipartRequestHandler
MultipartRequestHandler provides an standard interface for struts to deal with file uploads from forms with enctypes of "multipart/form-data". 你可以通过这二个接口得到文件的二进制流。struts的example里只介绍了FormFile的用法，你可以去看看。MultipartRequestHandler的用法和commons-fileupload包有点类似。

用jspsmartupload上传后用:
<jsp:useBean id="mySmartUpload" scope="page" class="com.jspsmart.upload.SmartUpload" />
声明一个SmartUpload 的实例
然后 mySmartUpload.initialize(pageContext); mySmartUpload.setTotalMaxFileSize(100000);
mySmartUpload.upload();//上传
for (int i=0;i<mySmartUpload.getFiles().getCount();i++){ com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(i);
}//获得上传的文件!这个你详细看看jspsmartupload的操作!

to:zhutouzip(Speak out!-shyboy) 请问jspsmartupload和struts结合的怎么样？

我觉得MultipartRequestHandler接口挺好的。

请问jspsmartupload和struts结合的怎么样？
---
结合得不错啊，呵呵

只能通过上传文件
jspsmartupload
struts也自己有上传类
================================
不通过上传文件，不能读到客户端文件的2进制的流吗？

还有，怎样用FormFile设置上传文件大小

import java.io.FileNotFoundException;
import java.io.IOException;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
public class ImageUploadAction extends Action {
    public ActionForward execute(ActionMapping actionMapping,
            ActionForm actionForm,
            HttpServletRequest httpServletRequest,
            HttpServletResponse httpServletResponse)
    {
        ImageUploadForm imageUploadForm = (ImageUploadForm)actionForm;
        ImageUpload  imageUpload = new ImageUpload();

        String pathId=(String)imageUploadForm.getPathId();  //前台<input>元素的ID
        String imgId=(String)imageUploadForm.getImgId(); //前台<img> 图片显示元素的ID
        FormFile theFile=imageUploadForm.getImagePath(); //图片路径

        String fileName="none.jpg";
        if(theFile!=null&&!theFile.equals("")){
        String path=this.getServlet().getServletContext().getRealPath("upload/congress/picture");
        fileName=imageUpload.getUName(theFile);
        try {
            //上传文件
            imageUpload.upload(theFile,path,fileName);
    } catch (FileNotFoundException e) {
            httpServletRequest.setAttribute("exception","文件未找到！"+e);
         return actionMapping.findForward("exception");
    } catch (IOException e) {
            httpServletRequest.setAttribute("exception","文件上传异常！"+e);
         return actionMapping.findForward("exception");
    }
        }
        httpServletRequest.setAttribute("pathId",pathId);
        httpServletRequest.setAttribute("pathId",pathId);
        httpServletRequest.setAttribute("pic",fileName);
        return actionMapping.findForward("success");
    }
}
import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;
/**
* <p>Title: 图片上传Form</p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2005</p>
* <p>Company: 西安恩科网络科技有限公司</p>
* @author zhangyh
* @version 1.0
*/
public class ImageUploadForm extends ActionForm{

    private FormFile imagePath; //图片路径
    private String pathId;     //前台<input>图片路径元素的ID
    private String imgId;      //前台<img> 图片显示元素的ID

    /**
     * @return Returns the imagePath.
     */
    public FormFile getImagePath() {
        return imagePath;
    }
    /**
     * @param imagePath The imagePath to set.
     */
    public void setImagePath(FormFile imagePath) {
        this.imagePath = imagePath;
    }

    /**
     * @return Returns the imgId.
     */
    public String getImgId() {
        return imgId;
    }
    /**
     * @param imgId The imgId to set.
     */
    public void setImgId(String imgId) {
        this.imgId = imgId;
    }
    /**
     * @return Returns the pathId.
     */
    public String getPathId() {
        return pathId;
    }
    /**
     * @param pathId The pathId to set.
     */
    public void setPathId(String pathId) {
        this.pathId = pathId;
    }
}
import org.apache.struts.upload.FormFile;import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
public class ImageUpload {    /**
     * 图片上传
     * @param formFile
     * @param path
     * @param uName
     * @throws FileNotFoundException
     * @throws IOException
     */
    public void upload(FormFile formFile,String path,String uName) throws FileNotFoundException, IOException{
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        InputStream stream = formFile.getInputStream();
        OutputStream bos = new FileOutputStream(path+"/"+uName);
        int bytesRead = 0;
        byte buffer[] = new byte[8192];
        while((bytesRead = stream.read(buffer, 0, 8192)) != -1)
            bos.write(buffer, 0, bytesRead);
        bos.close();

    }
    /**
     * 获取文件上传后名称
     * @param formFile
     * @return
     */
    public String getUName(FormFile formFile){
        return this.uid()+this.postfix(formFile);
    }

    /**
     * 文件数据库编号（别名）
     * @return
     */
    private String uid()
    {
        SimpleDateFormat format = new SimpleDateFormat("yyyyMMddhhmmss");
        Date d = new Date();
        return format.format(d);
    }

    /**
     * 文件后缀
     * @param fileName
     * @return
     */
    public String postfix(FormFile formFile){
        if (formFile != null && !formFile.getFileName().equals("")) {
            String name = formFile.getFileName();
            return name.substring(name.indexOf("."), name.length());
        } else {
            return null;
        }
    }
}

调试易

如何用struts获取客户端文件的2进制流。

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