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package com.gcloud.common;import javax.imageio.ImageIO;import java.awt.image.BufferedImage;import java.io.*;/** * 图片上传工具类 * Created by charlin on 2017/9/10. */public class UploadImageUtil {
       private String fileType;    private Long maxSize;    private Long width;    private Long height;    public UploadImageUtil() {  }    public UploadImageUtil(String fileType, Long maxSize, Long width, Long height) {        this.fileType = fileType;        this.maxSize = maxSize;        this.width = width;        this.height = height;    }    /**     * 检查上传图像大小     *     * @param upload     * @param uploadFileName     * @param uploadContentType     * @return     */    public String checkUploadImage(File upload, String uploadFileName, String uploadContentType) {        try {            if (fileType != null) {                String[] fileTypes = fileType.split(",");                int count = 0;                for (int i = 0; i < fileTypes.length; i++) {                    if (uploadContentType.equals(fileTypes[i])) {                        count++;                        continue;                    }                }                if (count == 0) {                    return "您上传的文件类型不对!";                }            }            BufferedImage bi = ImageIO.read(upload);            int w = bi.getWidth();            int h = bi.getHeight();            if (w > width || h > height) {                return "上传照片宽度和高度不符合要求";            }            if (upload.length() > maxSize) {                return "上传照片过大";            }        } catch (IOException e) {            e.printStackTrace();        }        return null;    }    /**     * 图片上传     *     * @param upload     * @param uploadFileName     * @param path     * @return     * @throws Exception     */    public void uploadImage(File upload, String uploadFileName, String path) throws Exception {        InputStream is = null;        OutputStream os = null;        try {            is = new FileInputStream(upload);            File f = new File(path);            if (!f.exists()) f.mkdirs();            os = new FileOutputStream(path + "/" + uploadFileName);            byte buffer[] = new byte[1024];            int count = 0;            int flag = 0;            while ((count = is.read(buffer)) > 0) {                os.write(buffer, 0, count);            }        } catch (FileNotFoundException e) {        } catch (IOException e) {            File f = new File(path + "/" + uploadFileName);            if (f.exists()) {                f.delete();            }        } finally {            try {                os.close();                is.close();            } catch (IOException ioe) {            }        }    }    /**     * 清除文件     * @param path     */    public void clear(String path) {        File file = new File(path);        if (file.isFile() && file.exists()) {            file.delete();        }    }    public String getFileType() {        return fileType;    }    public void setFileType(String fileType) {        this.fileType = fileType;    }    public Long getMaxSize() {        return maxSize;    }    public void setMaxSize(Long maxSize) {        this.maxSize = maxSize;    }    public Long getWidth() {        return width;    }    public void setWidth(Long width) {        this.width = width;    }    public Long getHeight() {        return height;    }    public void setHeight(Long height) {        this.height = height;    }}

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