struts2的文件下传和上载

2012-09-23

struts2的文件上传和下载struts2的文件上传和下载文件上传部分:上传页面 upload.jsps:form action uplo

struts2的文件上传和下载
struts2的文件上传和下载
文件上传部分:
上传页面 upload.jsp
        <s:form action ="upload" method ="POST" enctype ="multipart/form-data" >
                <s:file name ="file" label ="上传文件"/>
                <s:submit />
        </s:form >
上传 UploadAction.java
private File file;

private String fileFileName;

private String fileContextType;

private String root;

private HttpServletRequest request;
private Map session;

   @Override
public String execute() throws Exception {

     session.put("fileFileName", fileFileName);

    //取文件后缀名
     String lastname=null;
    int i = fileFileName.lastIndexOf('.');
     lastname=fileFileName.substring(i+1);

    //取当前日期
     SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
     Calendar calendar = Calendar.getInstance();
     String date=sdf.format(calendar.getTime());

    //10亿的随机数
     java.util.Random r=new java.util.Random();
     String radom=String.valueOf(r.nextInt(1000000000));

     fileFileName=date+radom+"."+lastname;

     session.put("fname", fileFileName);

     InputStream is=new FileInputStream(file);

     root= ServletActionContext.getRequest().getRealPath("/upload") ;//存储到apache项目发布目录上
//     String root="D:\\a1/upload";//存储到项目文件夹里

     session.put("fpath", root);
     File copyFile=new File(root,fileFileName);

     OutputStream os=new FileOutputStream(copyFile);

    byte[] buffer=new byte[400];

    int length=0;

    while(     (length=is.read(buffer))     >     0     ){
       os.write(buffer, 0, length);
     }

     is.close();

     os.close();

    return SUCCESS;
   }
struts.xml配置
     <action name="upload"
       type="stream">
        <param name="contentType">
           application/octet-stream;charset=ISO8859-1
        </param>
        <param name="inputName">inputStream</param>
         
        <param name="contentDisposition">
           attachment;filename="${downloadFileName}"
        </param>
        <param name="bufferSize">4096</param>
      </result>
    </action>
以上均为部分核心文件.

Unable to load bean org.apache.struts2.dispatcher.multipart.MultiPartRequest (jakarta) - [unknown location]

java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream

这两个错误的原因是缺少jar包.
commons-fileupload-1.2.1.jar
commons-io-1.4.jar

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struts2的文件下传和上载