原文地址

package eao;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import javax.servlet.ServletContext;

import org.apache.struts2.ServletActionContext;

import util.PictureNameBuilder;


public class PictureEAO {
	public static String[] savePicture(File[] pictures,String[] pictureFilename,String savePath){
		//開一個和檔案陣列大小相同的字串陣列
		String[] imgsrc=new String[pictures.length];
		//獲取專案上下文
		ServletContext context=ServletActionContext.getServletContext();
		//獲取照片儲存的相對地址在專案中應對應的全路徑
		String realSavePath=context.getRealPath(savePath);
		//建立資料夾
		File saveDirectory=new File(realSavePath);
		if(!saveDirectory.exists()){saveDirectory.mkdirs();}
		//處理圖片
		for(int i=0;i<imgsrc.length;i++){
			//獲取第i張圖片的上傳時的名稱
			String photoFileName=pictureFilename[i];
			//獲取第i張圖片儲存時的名稱
			String saveFileName=PictureNameBuilder.getPictureName();
			//取檔案字尾
			String ext=photoFileName.substring(photoFileName.lastIndexOf("."));
			//拼接得到檔案的專案中儲存地址
			String outFilePath=realSavePath+"/"+saveFileName+ext;
			//儲存專案圖片的相對地址，方便在網頁中進行訪問
			imgsrc[i]=savePath+"/"+saveFileName+ext;
			System.out.println("%%%%%%%%%%%%%%%%%%%%%%%% 截斷前"+imgsrc[i]+"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
			imgsrc[i]=imgsrc[i].substring(1);
			System.out.println("%%%%%%%%%%%%%%%%%%%%%%%% 截斷後"+imgsrc[i]+"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
			try {
				//開緩衝檔案輸入流，並將pictures[i]作為檔案輸入流傳入
				BufferedInputStream bis=new BufferedInputStream(new FileInputStream(pictures[i]));
				//開緩衝檔案輸出流，並將outFilePath作為檔案輸出地址
				BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(outFilePath));
				int tmp=-1;
				//按為寫入輸出流
				while ((tmp=bis.read())!=-1){
					bos.write(tmp);
				}
				//將輸出流中的內容寫入檔案
				bos.flush();
				//關閉兩個流
				bos.close();
				bis.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
			
		}
		return imgsrc;
	}
}