Url获取图片流并打包~

因为公司项目需求，做一个所有数据以excle的格式汇出，其中包括了图片。

而数据库保存的是图片的url.

自己捣鼓的代码.

 

imageFile的类

public class ImageFile {
    /**
     * 图片url
     */
    private String Path;
    /**
     * 图片名字
     */
    private String FileName;
    /**
     * 图片编号
     */
    private String CustomerNo;

    public ImageFile(String path, String FileName, String CustomerNo) {
        this.Path = path;
        this.FileName = FileName;
        this.CustomerNo = CustomerNo;
    }

    public ImageFile() {

    }

    public String getPath() {
        return Path;
    }

    public void setPath(String path) {
        Path = path;
    }

    public String getFileName() {
        return FileName;
    }

    public void setFileName(String fileName) {
        FileName = fileName;
    }

    public String getCustomerNo() {
        return CustomerNo;
    }

    public void setCustomerNo(String customerNo) {
        CustomerNo = customerNo;
    }

}

 

工具类

package com.bnuz.utils;

import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.apache.tomcat.util.http.fileupload.IOUtils;

import com.bnuz.domain.ImageFile;

public class Utils {
    /**
     * 
     * @param zip
     * @param file
     * @param index
     * @return index 当图片名字为空时，以index命名图片
     * @throws IOException
     */
    public static int ZipImage(ZipOutputStream zip, ImageFile file,
            String type, int index) throws IOException {
        // String fileName = StringUtils.isNotBlank(file.getFileName()) ? file
        // .getFileName() : index + "";
        String fileName = "";
        if (file.getFileName() == null || file.getFileName().trim().equals("")) {
            fileName = index + "";
        }
        ZipEntry entry = new ZipEntry(file.getCustomerNo() + "/" + fileName
                + "_" + type + ".jpg");
        zip.putNextEntry(entry);
        InputStream in = loadImageInputStream(file);
        IOUtils.copy(in, zip);
        zip.closeEntry();
        index++;
        return index;
    }

    /**
     * 
     * @param imageFile
     * @return 
     */
    public static InputStream loadImageInputStream(ImageFile imageFile) {
        URL url;
        InputStream dataInputStream = null;
        try {
            url = new URL(imageFile.getPath());
            dataInputStream = new DataInputStream(url.openStream());
            dataInputStream.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return dataInputStream;
    }
}

 

因为是自己写的玩意,所以就随便弄了~

package com.bnuz.zip;

import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipOutputStream;

import com.bnuz.domain.ImageFile;
import com.bnuz.utils.Utils;

public class Zip {
    public void toZip() throws IOException {
        FileOutputStream out = new FileOutputStream("D:/sb.zip");
        String url = "http://cnc.ef-cdn.com/_imgs/lp/cn/2016yr/mobile/template/billboard/billboard-fly.jpg";
        String fileName = "";
        String customerNo = "sb";
        try {
            ZipOutputStream zip = new ZipOutputStream(out);
            List<ImageFile> photoList = new ArrayList<ImageFile>();
            ImageFile logo = new ImageFile(url, fileName, customerNo);
            ImageFile photo = new ImageFile(url, fileName, customerNo);
            photoList.add(photo);
            photoList.add(photo);
            photoList.add(photo);
            int index = 1;
            for (ImageFile file : photoList) {
                index = Utils.ZipImage(zip, file, "en", index);
                // index = ZipImage(zip, file, "cn", index);
            }
            index = Utils.ZipImage(zip, logo, "logo", index);

            zip.close();
            out.flush();
        } catch (Exception e) {
            System.out.println("??");
        } finally {
            out.close();
        }
    }

    
    public static void main(String[] args) throws IOException {
        Zip a = new Zip();
        a.toZip();
    }
}