Struts 二 文件上传

Struts 2 文件上传
FileUploadAction

   public class FileUploadAction extends ActionSupport  {     private static final long serialVersionUID = 572146812454l ;     private static final int BUFFER_SIZE = 16 * 1024 * 1024;         private File myFile;     private String contentType;     private String fileName;     private String imageFileName;     private String caption;         public void setMyFileContentType(String contentType)  {         this .contentType = contentType;    }          public void setMyFileFileName(String fileName)  {         this .fileName = fileName;    }              public void setMyFile(File myFile)  {         this .myFile = myFile;    }          public String getImageFileName()  {         return imageFileName;    }          public String getCaption()  {         return caption;    }        public void setCaption(String caption)  {         this .caption = caption;    }          private static void copy(File src, File dst)  {         try  {            InputStream in = null ;            OutputStream out = null ;             try  {                                in = new BufferedInputStream( new FileInputStream(src), BUFFER_SIZE);                out = new BufferedOutputStream( new FileOutputStream(dst), BUFFER_SIZE);                 byte [] buffer = new byte [BUFFER_SIZE];                 while (in.read(buffer) > 0 )  {                    out.write(buffer);                }              } finally  {                 if ( null != in)  {                    in.close();                }                   if ( null != out)  {                    out.close();                }             }          } catch (Exception e)  {            e.printStackTrace();        }     }          private static String getExtention(String fileName)  {         int pos = fileName.lastIndexOf( "." );         return fileName.substring(pos);    }      @Override     public String execute()      {                if(fileName != null){        imageFileName = new Date().getTime() + getExtention(fileName);        System.out.println(getExtention(fileName)+"==="+new Date());        File imageFile = new File(ServletActionContext.getServletContext().getRealPath( "/upload" ) + "/" + imageFileName);        copy(myFile, imageFile);        return SUCCESS;        }        return INPUT;    }     } 

struts.xml

      <constant name="struts.custom.i18n.resources"    value="message"></constant>    <constant name="struts.i18n.encoding" value="GBK"/>

<action name="fileUpload" >ShowUpload.jsp </result >        </action>

<param name="maximumSize">10240990</param>
<param name="allowedTypes">application/pdf</param>
其allowedTypes见Tomcat Home/config/web.xml可以添加你想要的类型

message.properties

   #xwork.default.invalid.fieldvalue={0} errorstruts.messages.error.content.type.not.allowed=\u4e0a\u4f20\u6587\u4ef6\u7c7b\u578b\u4e0d\u5141\u8bb8\uff0c\u8bf7\u91cd\u8bd5\uff01struts.messages.error.file.too.large=\u4e0a\u4f20\u6587\u4ef6\u8fc7\u5927\uff0c\u8bf7\u91cd\u8bd5\uff01

查看更多 下一篇