oss图片处理实例

最近用到阿里云的oss存储图片数据，并且使用了图片处理功能，发现相关的技术文档都没有实例提供，我就把代码奉献出来喽。

主要的Control类

package com.zufangbao.earth.web.controller;import java.io.File;import java.io.FileOutputStream;import java.sql.Timestamp;import java.text.DateFormat;import java.text.SimpleDateFormat;import java.util.Arrays;import java.util.Date;import java.util.HashMap;import java.util.List;import java.util.UUID;import javax.servlet.http.HttpServletRequest;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.multipart.MultipartHttpServletRequest;import com.zufangbao.earth.util.ExceptionUtils;import com.zufangbao.earth.util.UploadUtil;import com.zufangbao.earth.web.controller.ImageControllerSpec.I_Get_Image_Key;import com.zufangbao.gluon.spec.earth.MessageTable4Earth;/** * @author Xiepf * 2015年12月21日 */@Controller@RequestMapping(ImageControllerSpec.NAME)public class ImageController {@Autowiredprivate UploadUtil uploadUtil;private static final Log logger = LogFactory.getLog(ImageController.class);@RequestMapping(value = I_Get_Image_Key.NAME, method = RequestMethod.POST)public HashMap<String, String> uploadImage(HttpServletRequest request, HashMap<String , Integer> parameters) {FileOutputStream fos = null;HashMap<String, String> urlMap = new HashMap<String, String>();try {MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;MultipartFile multipartFile = multipartRequest.getFile(I_Get_Image_Key.PARAM_IMAGE);String key = multipartFile.getContentType();Boolean isAllowType = IsAllowType(key);if(!isAllowType){logger.error("#uploadImage occur error, FileType is not allow!");return null;}if(parameters.containsKey("width")==false && parameters.containsKey("hight")){logger.error("#uploadImage occur error, width and hight should have one least!");return null;}byte[] arr = multipartFile.getBytes();String targetPath = getTargetPath();File imageFile = new File(targetPath);fos = new FileOutputStream(imageFile);try {fos.write(arr);} finally {if(null != fos){fos.close();}}UploadUtil.uploadImage(targetPath);urlMap.put("original", UploadUtil.getAliYunUrl()+getFileName());urlMap.put("thumbnail", uploadUtil.getThumbnail(getFileName(),parameters));//System.out.println(urlMap);return urlMap;} catch (Exception e) {int errCode = ExceptionUtils.getErrorCodeFromException(e);String message = MessageTable4Earth.getMessage(errCode);logger.error("#uploadImage occur error, code[" + errCode +" ],message["+message+"]", e.fillInStackTrace());return null;}}//判断图片格式是否合法public Boolean IsAllowType(String key) {String fileType = key.split("/")[1];String[] formats = {"jpg","png","webp","bmp","jpeg"};List<String> allowFormats = Arrays.asList(formats);if(allowFormats.contains(fileType.toLowerCase()))return true;else return false;}@Value("#{config['IMG_ROOT_PATH']}")private String IMG_ROOT_PATH = "/temp";private String imgUUID;public String getTargetPath() {imgUUID = UUID.randomUUID().toString();String path = IMG_ROOT_PATH + format(getNowTimestamp(), I_Get_Image_Key.DEFAULT_DATE_PATTERN)+ "/";File file =new File(path);    //如果文件夹不存在则创建    if  (!file .exists()  && !file .isDirectory()) {           file .mkdir();    } path += getFileName();return path;}private String getFileName() {String fileName = imgUUID + I_Get_Image_Key.JPEG;return fileName;}public static Timestamp getNowTimestamp(){return new Timestamp(System.currentTimeMillis());}public static String format(Date date, String pattern){DateFormat df = new SimpleDateFormat(pattern);String s = df.format(date);return s;}}

工具类

package com.zufangbao.earth.util;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.util.Arrays;import java.util.HashMap;import java.util.List;import java.util.Properties;import java.util.Set;import org.apache.commons.lang.StringUtils;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.springframework.core.io.ClassPathResource;import org.springframework.core.io.Resource;import org.springframework.core.io.support.PropertiesLoaderUtils;import org.springframework.stereotype.Component;import com.aliyun.oss.OSSClient;import com.aliyun.oss.model.ObjectMetadata;/** * @author Xiepf 2015年12月21日 */@Componentpublic class UploadUtil {private static final Log logger = LogFactory.getLog(UploadUtil.class);private static final String ACCESS_ID = getValue("ACCESS_ID");private static final String ACCESS_KEY = getValue("ACCESS_KEY");private static final String BUCKET_NAME = getValue("BUCKET_NAME");private static final String END_POINT = getValue("END_POINT");private static final String PICTURE_SERVICE = getValue("PICTURE_SERVICE");private static final String IMAGE_CONTENT_TYPE = "image/jpeg";public static void uploadImage(String filePath) {try {File file = new File(filePath);String key = file.getName();String fileType = key.split("\\.")[1];OSSClient client = new OSSClient(END_POINT, ACCESS_ID, ACCESS_KEY);logger.debug("开始上传----->");uploadImage(client, BUCKET_NAME, key, filePath, fileType);logger.debug("上传完成----->");} catch (IOException e) {e.printStackTrace();}}private static void uploadImage(OSSClient client, String bucketName,String key, String uploadFilePath, String fileType)throws IOException {InputStream is = null;File file = new File(uploadFilePath);ObjectMetadata objectMeta = new ObjectMetadata();objectMeta.setContentLength(file.length());objectMeta.setContentType(IMAGE_CONTENT_TYPE);try {is = new FileInputStream(file);client.putObject(bucketName, key, is, objectMeta);} finally {if (null != is) {is.close();}}}private static final String HTTP = "http://";private static final String POINT = ".";private static final String AT = "@";private static final String CONNECT = "_";private static final String SEPARATOR = "/";private static final String TYPE = ".jpg";public static String getAliYunUrl() {StringBuffer buffer = new StringBuffer();buffer.append(HTTP).append(BUCKET_NAME).append(POINT).append(END_POINT).append(SEPARATOR);return buffer.toString();}private static final HashMap<String, String> picuture_service_argument_mapping = new HashMap<String, String>() {{put("width", "w");put("hight", "h");put("quality", "q");put("Quality", "Q");put("multiple", "x");put("immobilize", "i");put("cut", "c");put("edge", "e");put("Orient", "o");}};private static final String[] keys = {"width","hight","quality","Quality","multiple","immobilize","cut","edge","Orient"}; private static final List<String> keyList = Arrays.asList(keys); /**  * 获得说略图URL，根据传入的Parameters参数  */ public String getThumbnail(String fileName,HashMap<String, Integer> parameters) {StringBuffer buffer = new StringBuffer();buffer.append(HTTP).append(BUCKET_NAME).append(POINT).append(PICTURE_SERVICE).append(SEPARATOR).append(fileName).append(AT);StringBuffer paraString = new StringBuffer();Set<String> keySet = parameters.keySet();for (String key : keyList) if(keySet.contains(key)){String arugmentString = picuture_service_argument_mapping.get(key);if (StringUtils.isEmpty(arugmentString))continue;paraString.append(CONNECT).append(parameters.get(key).toString()+ picuture_service_argument_mapping.get(key));}buffer.append(paraString.toString().substring(1, paraString.length()));buffer.append(TYPE);return buffer.toString();}private static final String OSS_PROPERTIES = "oss.properties";public static String getValue(String key) {Resource imgResource = new ClassPathResource(OSS_PROPERTIES);try {Properties properties = PropertiesLoaderUtils.loadProperties(imgResource);return properties.getProperty(key);} catch (IOException e) {e.printStackTrace();return null;}}}