struts文件上传

Struts文件上传

1. 页面配置：

<form action="upload.do" method="post" enctype="multipart/form-data">

       标题：<input type="text" name="title"><br>

       文件：<input type="file" name="file"><br>

       <input type="submit" value="提交">

  </form>

2. ActionForm中使用FormFile来接受上传文件，代码如下：

public class UploadForm extends ActionForm {  

    private FormFile file;

    public FormFile getFile() {

       return file;

    }

    public void setFile(FormFile file) {

       this.file = file;

    }

}

3.    在Action中使用FormFile来接收上传文件，代码如下:

public ActionForward execute(ActionMapping mapping, ActionForm form,

           HttpServletRequest request, HttpServletResponse response) {

       ActionForward af = null;

       UploadForm uploadForm = (UploadForm) form;// TODO Auto-generated method stub

       FormFile myFile = uploadForm.getFile();       

       if(myFile!=null){

           try {

              FileOutputStream fos = new FileOutputStream("c:\\"+myFile.getFileName());

              fos.write(myFile.getFileData());

              fos.flush();

              fos.close();

              af =  mapping.findForward("success");

           } catch (Exception e) {

              e.printStackTrace();

              af =  mapping.findForward("error");

           }

       }

       return af;

    }

4.       在struts-config.xml中的配置

<action

      attribute="uploadForm"

      name="uploadForm"

      path="/upload"

      scope="request"

      type="com.zsw.struts.action.UploadAction" >

      <forward name="success" path="/upload_success.jsp" />

      <forward name="error" path="/upload_error.jsp" />

</action>

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补充: 文件下载


//下载公文附件

	public ActionForward download(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		
		Document document = documentManager.findDocument(daf.getId());
		
		response.reset();
		response.setContentType("application/x-download;charset=GBK");
		response.setHeader("Content-Disposition", "attachment;filename=temp.doc");
		
		response.getOutputStream().write(document.getContent());
		
		response.getOutputStream().flush();
		response.getOutputStream().close();
		
		//指示struts，不要对返回值进行处理
		return null;
	}