struts2上传多张图片的方法

分手后的思念是犯贱 2024-02-18 21:12 27阅读 0赞

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){
    		//开一个和文件数组大小相同的字符串数组
    		String[] imgsrc=new String[pictures.length];
    		//获取项目上下文
    		ServletContext context=ServletActionContext.getServletContext();
    		//获取照片存储的相对地址在项目中应对应的全路径
    		String realSavePath=context.getRealPath(savePath);
    		//创建文件夹
    		File saveDirectory=new File(realSavePath);
    		if(!saveDirectory.exists()){saveDirectory.mkdirs();}
    		//处理图片
    		for(int i=0;i<imgsrc.length;i++){
    			//获取第i张图片的上传时的名称
    			String photoFileName=pictureFilename[i];
    			//获取第i张图片保存时的名称
    			String saveFileName=PictureNameBuilder.getPictureName();
    			//取文件后缀
    			String ext=photoFileName.substring(photoFileName.lastIndexOf("."));
    			//拼接得到文件的项目中存储地址
    			String outFilePath=realSavePath+"/"+saveFileName+ext;
    			//保存项目图片的相对地址，方便在网页中进行访问
    			imgsrc[i]=savePath+"/"+saveFileName+ext;
    			System.out.println("%%%%%%%%%%%%%%%%%%%%%%%% 截断前"+imgsrc[i]+"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
    			imgsrc[i]=imgsrc[i].substring(1);
    			System.out.println("%%%%%%%%%%%%%%%%%%%%%%%% 截断后"+imgsrc[i]+"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
    			try {
    				//开缓冲文件输入流，并将pictures[i]作为文件输入流传入
    				BufferedInputStream bis=new BufferedInputStream(new FileInputStream(pictures[i]));
    				//开缓冲文件输出流，并将outFilePath作为文件输出地址
    				BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(outFilePath));
    				int tmp=-1;
    				//按为写入输出流
    				while ((tmp=bis.read())!=-1){
    					bos.write(tmp);
    				}
    				//将输出流中的内容写入文件
    				bos.flush();
    				//关闭两个流
    				bos.close();
    				bis.close();
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    			
    		}
    		return imgsrc;
    	}
    }