struts2上传多文件(b)

UploadUtil.java<br>-------------------
/**
 * 上传文件，名称以日期命名
 *
 * @author Administrator
 */
public class UploadUtil {
    /**
     * 上传文件
     *
     * @param src
     *            源文件
     * @param dst
     *            目标文件
     * @param BUFFER_SIZE
     *            缓冲大小
     */
    public static void copy(File src, File dst, final int BUFFER_SIZE) {
        try {
            InputStream in = null;
            OutputStream out = null;
            try {
                in = new BufferedInputStream(new FileInputStream(src));
                dst = rename(dst);
                out = new BufferedOutputStream(new FileOutputStream(dst));
                int word = 0;
                while ((word = in.read()) != -1) {
                    out.write(word);
                }
            } finally {
                if (null != in) {
                    in.close();
                }
                if (null != out) {
                    out.close();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 
    /**
     * 得到扩展名
     * @param fileName
     * @return
     */
    public static String getExt(String fileName) {
        int pos = fileName.lastIndexOf(".");
        return fileName.substring(pos);
    }
 
    /**
     * 更改上传文件名
     * @param file 文件对象
     * @return 更名后的文件对象
     */
    public static File rename(File file) {
        String fileName = "";// 文件名
        String extName = "";// 文件扩展名
        Calendar cal = Calendar.getInstance();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
        fileName = formatter.format(cal.getTime()) + (int) (Math.random() * 10);
        extName = getExt(file.getName());
        String newName = fileName + "." + extName;
        file = new File(file.getParent(), newName);
        return file;
    }
 
}

　　

 upload.jsp
<html>
  <body>
   <s:form method="post" action="jupload" enctype ="multipart/form-data">
    上传图片：<s:file name ="upload" theme="simple"/>
    <br/>
    上传附件：<s:file name ="upload" theme="simple"/>
    <br/>
    <s:submit theme="simple" value="提交"/>
  </s:form>
  </body>
</html>

　　struts.xml

<!-- 上传文件 cyjch -->
<action name="jupload"  method="add" class="upAction" >
    <result name="upload">upload.jsp</result>
</action>
posted @ 2016-11-28 13:58  To哥  阅读(114)  评论(0)    收藏  举报