java 上传图片 二进制保存到 mysql 请求图片二进制转化为图片 cxf rest jax-rs

1.上传   cxf rest 接口 图片转成二进制 保存到mysql  数据库的数据类型选择  blob

@POST@Path("/uploadimagebyte")@Consumes("multipart/form-data")public Response downloadFileByForm(@Multipart(value = "id", type = "text/plain") String id,@Multipart(value = "name", type = "text/plain") String name,@Multipart(value = "file", type = "image/png") Attachment image);

@Overridepublic Response downloadFileByForm(@Multipart(value = "id", type = "text/plain") String id,@Multipart(value = "name", type = "text/plain") String name,@Multipart(value = "file", type = "image/png") Attachment image) {final int max_upsize = 200 * 1024; // 头像最大文件上传大小final int max_size = 60 * 1024; // 头像最大文件大小final int max_height = 600;final int max_weight = 600;try {// 将图片压缩并装入byteImage jimage = ImageIO.read(image.getDataHandler().getInputStream());int[] size = ImageUtil.getSize(max_weight, max_height, jimage);byte[] pic_bytes = ImageUtil.resize(size[0], size[1], 1f, jimage);System.out.println("photo size=" + pic_bytes.length);// 大小判断if (pic_bytes == null || pic_bytes.length > max_size) {// 不符合的话可以在这里返回 失败// 比如：// ResponseBuilder response = Response.status(500);// return response.build();}// 这里数据库入库// 构造Response} catch (Exception e) {// TODO: handle exception}ResponseBuilder response = Response.ok();return response.build();}

引用的各种package 

import java.awt.Image;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileFilter;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.io.PrintWriter;import java.util.Date;import java.util.List;import javax.activation.DataHandler;import javax.imageio.ImageIO;import javax.servlet.ServletContext;import javax.servlet.http.HttpServletRequest;import javax.ws.rs.BeanParam;import javax.ws.rs.Consumes;import javax.ws.rs.POST;import javax.ws.rs.Path;import javax.ws.rs.core.Context;import javax.ws.rs.core.MultivaluedMap;import javax.ws.rs.core.Response;import javax.ws.rs.core.Response.ResponseBuilder;import org.apache.commons.fileupload.FileItem;import org.apache.commons.fileupload.FileUploadException;import org.apache.commons.fileupload.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload;import org.apache.cxf.jaxrs.ext.multipart.Attachment;import org.apache.cxf.jaxrs.ext.multipart.Multipart;import org.json.JSONObject;import org.springframework.stereotype.Service;import org.springframework.web.context.request.RequestContextHolder;import org.springframework.web.context.request.ServletRequestAttributes;import org.springframework.web.servlet.support.RequestContextUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.HttpRequest;

2. 下载 保存图片 二进制转图片  

这里要用GET

@GET@Path("/downloadpic")public Response downloadpic();

@Overridepublic Response downloadpic() {//pic_bytes 是从数据库查出来的图片的二进制 byte[]ResponseBuilder response = Response.ok(pic_bytes);response.header("Content-Type", "image/jpeg");return response.build();}

附上一个 iamge的帮助类

package com.weds.framework.core.utils;import java.awt.AlphaComposite;import java.awt.Color;import java.awt.Graphics2D;import java.awt.Image;import java.awt.image.BufferedImage;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.IOException;import java.util.Iterator;import java.util.regex.Matcher;import java.util.regex.Pattern;import javax.imageio.ImageIO;import javax.imageio.ImageReader;import javax.imageio.stream.ImageInputStream;import com.sun.image.codec.jpeg.ImageFormatException;import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGEncodeParam;import com.sun.image.codec.jpeg.JPEGImageEncoder;import com.weds.framework.core.utils.SystemConstant.WatermarkPosition;public class ImageUtil { // 获取img标签正则    private static final String IMGURL_REG = "<img.*src=(.*?)[^>]*?>";    // 获取src路径的正则    private static final String IMGSRC_REG = "(http://7xqgf8.com1.z0.glb.clouddn.com\"?(.*?))(\"|>|\\s+)";    /**     * 图片缩放(图片等比例缩放为指定大小，空白部分以白色填充)     *     * @param srcBufferedImage 源图片     * @param destFile         缩放后的图片文件     */    public static void zoom(BufferedImage srcBufferedImage, File destFile, int destHeight, int destWidth) {        try {            int imgWidth = destWidth;            int imgHeight = destHeight;            int srcWidth = srcBufferedImage.getWidth();            int srcHeight = srcBufferedImage.getHeight();            if (srcHeight >= srcWidth) {                imgWidth = (int) Math.round(((destHeight * 1.0 / srcHeight) * srcWidth));            } else {                imgHeight = (int) Math.round(((destWidth * 1.0 / srcWidth) * srcHeight));            }            BufferedImage destBufferedImage = new BufferedImage(destWidth, destHeight, BufferedImage.TYPE_INT_RGB);            Graphics2D graphics2D = destBufferedImage.createGraphics();            graphics2D.setBackground(Color.WHITE);            graphics2D.clearRect(0, 0, destWidth, destHeight);            graphics2D.drawImage(srcBufferedImage.getScaledInstance(imgWidth, imgHeight, Image.SCALE_SMOOTH), (destWidth / 2) - (imgWidth / 2), (destHeight / 2) - (imgHeight / 2), null);            graphics2D.dispose();            ImageIO.write(destBufferedImage, "JPEG", destFile);        } catch (IOException e) {            e.printStackTrace();        }    }    /**     * 添加图片水印     *     * @param srcBufferedImage 需要处理的源图片     * @param destFile         处理后的图片文件     * @param watermarkFile    水印图片文件     */    public static void imageWatermark(BufferedImage srcBufferedImage, File destFile, File watermarkFile, WatermarkPosition watermarkPosition, int alpha) {        try {            int srcWidth = srcBufferedImage.getWidth();            int srcHeight = srcBufferedImage.getHeight();            BufferedImage destBufferedImage = new BufferedImage(srcWidth, srcHeight, BufferedImage.TYPE_INT_RGB);            Graphics2D graphics2D = destBufferedImage.createGraphics();            graphics2D.setBackground(Color.WHITE);            graphics2D.clearRect(0, 0, srcWidth, srcHeight);            graphics2D.drawImage(srcBufferedImage.getScaledInstance(srcWidth, srcHeight, Image.SCALE_SMOOTH), 0, 0, null);            if (watermarkFile != null && watermarkFile.exists() && watermarkPosition != null && watermarkPosition != WatermarkPosition.no) {                BufferedImage watermarkBufferedImage = ImageIO.read(watermarkFile);                int watermarkImageWidth = watermarkBufferedImage.getWidth();                int watermarkImageHeight = watermarkBufferedImage.getHeight();                graphics2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha / 100.0F));                int x = 0;                int y = 0;                if (watermarkPosition == WatermarkPosition.topLeft) {                    x = 0;                    y = 0;                } else if (watermarkPosition == WatermarkPosition.topRight) {                    x = srcWidth - watermarkImageWidth;                    y = 0;                } else if (watermarkPosition == WatermarkPosition.center) {                    x = (srcWidth - watermarkImageWidth) / 2;                    y = (srcHeight - watermarkImageHeight) / 2;                } else if (watermarkPosition == WatermarkPosition.bottomLeft) {                    x = 0;                    y = srcHeight - watermarkImageHeight;                } else if (watermarkPosition == WatermarkPosition.bottomRight) {                    x = srcWidth - watermarkImageWidth;                    y = srcHeight - watermarkImageHeight;                }                graphics2D.drawImage(watermarkBufferedImage, x, y, watermarkImageWidth, watermarkImageHeight, null);            }            graphics2D.dispose();            ImageIO.write(destBufferedImage, "JPEG", destFile);        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 图片缩放并添加图片水印(图片等比例缩放为指定大小，空白部分以白色填充)     *     * @param srcBufferedImage 需要处理的图片     * @param destFile         处理后的图片文件     * @param watermarkFile    水印图片文件     */    public static void zoomAndWatermark(BufferedImage srcBufferedImage, File destFile, int destHeight, int destWidth, File watermarkFile, WatermarkPosition watermarkPosition, int alpha) {        try {            int imgWidth = destWidth;            int imgHeight = destHeight;            int srcWidth = srcBufferedImage.getWidth();            int srcHeight = srcBufferedImage.getHeight();            if (srcHeight >= srcWidth) {                imgWidth = (int) Math.round(((destHeight * 1.0 / srcHeight) * srcWidth));            } else {                imgHeight = (int) Math.round(((destWidth * 1.0 / srcWidth) * srcHeight));            }            BufferedImage destBufferedImage = new BufferedImage(destWidth, destHeight, BufferedImage.TYPE_INT_RGB);            Graphics2D graphics2D = destBufferedImage.createGraphics();            graphics2D.setBackground(Color.WHITE);            graphics2D.clearRect(0, 0, destWidth, destHeight);            graphics2D.drawImage(srcBufferedImage.getScaledInstance(imgWidth, imgHeight, Image.SCALE_SMOOTH), (destWidth / 2) - (imgWidth / 2), (destHeight / 2) - (imgHeight / 2), null);            if (watermarkFile != null && watermarkFile.exists() && watermarkPosition != null && watermarkPosition != WatermarkPosition.no) {                BufferedImage watermarkBufferedImage = ImageIO.read(watermarkFile);                int watermarkImageWidth = watermarkBufferedImage.getWidth();                int watermarkImageHeight = watermarkBufferedImage.getHeight();                graphics2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha / 100.0F));                int x = 0;                int y = 0;                if (watermarkPosition == WatermarkPosition.topLeft) {                    x = 0;                    y = 0;                } else if (watermarkPosition == WatermarkPosition.topRight) {                    x = destWidth - watermarkImageWidth;                    y = 0;                } else if (watermarkPosition == WatermarkPosition.center) {                    x = (destWidth - watermarkImageWidth) / 2;                    y = (destHeight - watermarkImageHeight) / 2;                } else if (watermarkPosition == WatermarkPosition.bottomLeft) {                    x = 0;                    y = destHeight - watermarkImageHeight;                } else if (watermarkPosition == WatermarkPosition.bottomRight) {                    x = destWidth - watermarkImageWidth;                    y = destHeight - watermarkImageHeight;                }                graphics2D.drawImage(watermarkBufferedImage, x, y, watermarkImageWidth, watermarkImageHeight, null);            }            graphics2D.dispose();            ImageIO.write(destBufferedImage, "JPEG", destFile);        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 获取图片文件的类型.     *     * @param uploadFile 图片文件对象.     * @return 图片文件类型     */    public static String getImageFormatName(File uploadFile) {        try {            ImageInputStream imageInputStream = ImageIO.createImageInputStream(uploadFile);            Iterator<ImageReader> iterator = ImageIO.getImageReaders(imageInputStream);            if (!iterator.hasNext()) {                return null;            }            ImageReader imageReader = (ImageReader) iterator.next();            imageInputStream.close();            return imageReader.getFormatName().toLowerCase();        } catch (IOException e) {            e.printStackTrace();        }        return null;    }    public static String convertToWeChatSize(String origin) {        String result = origin;        Pattern p = Pattern.compile(IMGURL_REG, Pattern.CASE_INSENSITIVE);        Matcher m = p.matcher(origin);        String imgUrl = null;        String imgSrc = null;        while (m.find()) {            imgUrl = m.group();            Matcher matcher = Pattern.compile(IMGSRC_REG).matcher(imgUrl);            String newUrl = null;            while (matcher.find()) {                imgSrc = matcher.group(1);                System.out.println(matcher.group(1));                newUrl = matcher.replaceAll(imgSrc + "-o\"");            }            if (newUrl != null) {                result = m.replaceAll(newUrl);            }        }        return result;    }    /**     * <b>function:</b> 通过目标对象的大小和标准（指定）大小计算出图片缩小的比例     * @author hoojo     * @createDate 2012-2-6 下午04:41:48     * @param targetWidth 目标的宽度     * @param targetHeight 目标的高度     * @param standardWidth 标准（指定）宽度     * @param standardHeight 标准（指定）高度     * @return 最小的合适比例     */    public static double getScaling(double targetWidth, double targetHeight, double standardWidth, double standardHeight) {        double widthScaling = 0d;        double heightScaling = 0d;        if (targetWidth > standardWidth) {            widthScaling = standardWidth / (targetWidth * 1.00d);        } else {            widthScaling = 1d;        }        if (targetHeight > standardHeight) {            heightScaling = standardHeight / (targetHeight * 1.00d);        } else {            heightScaling = 1d;        }        return Math.min(widthScaling, heightScaling);    }    /**     * <b>function:</b> 通过指定大小和图片的大小，计算出图片缩小的合适大小     * @author hoojo     * @createDate 2012-2-6 下午05:53:10     * @param width 指定的宽度     * @param height 指定的高度     * @param image 图片文件     * @return 返回宽度、高度的int数组     */    public static int[] getSize(int width, int height, Image image) {        int targetWidth = image.getWidth(null);        int targetHeight = image.getHeight(null);        double scaling = getScaling(targetWidth, targetHeight, width, height);        long standardWidth = Math.round(targetWidth * scaling);        long standardHeight = Math.round(targetHeight * scaling);        return new int[] { Integer.parseInt(Long.toString(standardWidth)), Integer.parseInt(String.valueOf(standardHeight)) };    }     /**     * <b>function:</b> 可以设置图片缩放质量，并且可以根据指定的宽高缩放图片     * @author hoojo     * @createDate 2012-2-7 上午11:01:27     * @param width 缩放的宽度     * @param height 缩放的高度     * @param quality 图片压缩质量，最大值是1； Some guidelines: 0.75 high quality、0.5  medium quality、0.25 low quality     * @param targetImage 即将缩放的目标图片     * @return 图片二进制     * @throws ImageFormatException     * @throws IOException     */    public static byte[] resize(int width, int height, Float quality, Image targetImage) throws ImageFormatException, IOException {        width = Math.max(width, 1);        height = Math.max(height, 1);        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);        image.getGraphics().drawImage(targetImage, 0, 0, width, height, null);                ByteArrayOutputStream fos = new ByteArrayOutputStream();        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(fos);                if (quality == null || quality <= 0) {            quality = null;        }        /** 设置图片压缩质量 */          if(quality != null)        {        JPEGEncodeParam encodeParam = JPEGCodec.getDefaultJPEGEncodeParam(image);         encodeParam.setQuality(quality, true);        encoder.encode(image, encodeParam);          }        else        {        encoder.encode(image);        }         image.flush();        byte[] jout = fos.toByteArray();                fos.close();                return jout;    }}