文件上传(Struts2)

UploadFileAction.java(上传文件Action)

package com.blog.action.upload;    

import java.io.File;    
import java.io.FileInputStream;    
import java.io.FileNotFoundException;    
import java.io.FileOutputStream;    

import com.blog.util.Constant;    
import com.blog.util.file.FileUtil;    
import com.opensymphony.xwork2.ActionSupport;    

public class UploadFileAction extends ActionSupport {    
            
         /**    
         * <param name="allowTypes">        
        image/bmp,image/png,image/gif,image/jpeg        
</param>    
         */
         private static final long serialVersionUID = 1L;    
         /** 上传文件对象 */
         private File upload;    
            
         /** 上传文件文件名 */
         private String uploadFileName;    
            
         /** 上传文件文件类型 */
         private String uploadContentType;    
            
         /** 允许上传文件类型 */
         private String allowTypes = "image/bmp,image/png,image/gif,image/jpeg";    
         /**    
         * 复制文件到本地目录    
         *    
         * @param origPath    
         * @param targPath    
         */
         private void copy(String savePath, String saveToDBPath){    
                    
                System.out.println( "开始上传单个文件--------------------");    
                System.out.println(savePath);    
                System.out.println( "============" + getUploadFileName());    
                System.out.println( "============" + getUploadContentType());    
                System.out.println( "============" + getUpload());    
                    
                 //以服务器的文件保存地址和原文件名建立上传文件输出流    
                 try {    
                        FileOutputStream fos = new FileOutputStream(savePath + "/" + this.getUploadFileName());    
                            
                        FileInputStream fis = new FileInputStream(getUpload());    
                            
                         byte[] buffer = new byte[1024];    
                            
                         int len = 0 ;    
                            
                         while((len = fis.read(buffer)) > 0){    
                                fos.write(buffer, 0, len);    
                        }    
                            
                         //关闭流    
                        fis.close();    
                        fos.close();    
                } catch (FileNotFoundException e) {    
                         // TODO Auto-generated catch block    
                        e.printStackTrace();    
                } catch(Exception exception){    
                        exception.printStackTrace();    
                }    
                    
        }    
            
         /**    
         * 上传文件    
         */
         public String upload(){    
                    
                FileUtil fileUtil = FileUtil.getFileUtil();    
                    
                 // 文件保存路径    
                String savePathRoot = Constant.UPLOAD_FILE_SAVE_ROOT + "bus/" + fileUtil.getDateFolderName();    
                 // 数据库保存路径    
                String saveToDBRoot = "bus/" + fileUtil.getDateFolderName() + "/" + this.getUploadFileName();    
                 //创建该文件目录    
                fileUtil.createFolder(savePathRoot);    
                 //开始复制文件    
                 this.copy(savePathRoot, saveToDBRoot);    
                    
                 return SUCCESS;    
        }    

         public String execute(){    
                    
                 return this.upload();    
                    
        }    
            
            
         public File getUpload() {    
                 return upload;    
        }    

         public void setUpload(File upload) {    
                 this.upload = upload;    
        }    

         public String getUploadFileName() {    
                 return uploadFileName;    
        }    

         public void setUploadFileName(String uploadFileName) {    
                 this.uploadFileName = uploadFileName;    
        }    

         public String getUploadContentType() {    
                 return uploadContentType;    
        }    

         public void setUploadContentType(String uploadContentType) {    
                 this.uploadContentType = uploadContentType;    
        }    

         public String getAllowTypes() {    
                 return allowTypes;    
        }    

         public void setAllowTypes(String allowTypes) {    
                 this.allowTypes = allowTypes;    
        }    
            
}    
辅助类：FileUtil

package com.blog.util.file;    

import java.io.File;    
import java.util.Date;    

import com.blog.util.date.DateUtil;    

public class FileUtil {    
            
         private static FileUtil fileUtil = new FileUtil();    
            
         private FileUtil(){    
                    
        }    
            
         /**    
         * 创建指定目录文件夹    
         *    
         * @param dst    
         * @return boolean    
         */
         public boolean createFolder(String dst){    
                    
                 boolean result = false;    
                    
                File file = new File(dst);    
                    
                file.delete(); //删除文件夹    
                    
                 if(!file.exists()){    
                        result = file.mkdirs();    
                }    
                    
                    
                 return result;    
        }    
            
         /**    
         * 获取日期名文件夹字符串    
         *    
         * @return String    
         */
         public String getDateFolderName(){    
                    
                DateUtil    dateUtil = DateUtil.getDateUtil();    
                Date date = dateUtil.getDate();    
                StringBuffer sBuffer = new StringBuffer();    
                    
                sBuffer.append(String.valueOf(date.getYear()+1900));    
                sBuffer.append(String.valueOf(date.getMonth() + 1));    
                sBuffer.append(String.valueOf(date.getDate()));    
                sBuffer.append(String.valueOf(date.getHours()));    
                sBuffer.append(String.valueOf(date.getMinutes()));    
                sBuffer.append(String.valueOf(date.getSeconds()));    
                    
                 return sBuffer.toString();    
                    
        }    

         /**    
         * 获取文件工具类对象    
         *    
         * @return FileUtil    
         */
         public static FileUtil getFileUtil() {    
                 return fileUtil;    
        }    
            
}    
辅助类:Constant

package com.blog.util;    

public interface Constant {    
            
         /** 上传文件根目录 */
         public static final String UPLOAD_FILE_SAVE_ROOT = "F:/upload/";    
}    

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