一.配置阿里云注册信息常量OSSClientConstants
public class OSSClientConstants {
//阿里云API的外网域名
public static final String ENDPOINT = "oss-cn-hangzhou.aliyuncs.com";
//阿里云API的密钥Access Key ID
public static final String ACCESS_KEY_ID = "";
//阿里云API的密钥Access Key Secret
public static final String ACCESS_KEY_SECRET = "";
//阿里云API的bucket名称
public static final String BACKET_NAME = "cht-bucket";
//阿里云API的文件夹名称
public static final String FOLDER="cht-platform/upload/";
}
其中ENDPOINT 的配置常量不要添加bucket的名称,直接加后面的参数!
二.配置AliyunOSSClientUtil类使用阿里云OSS存储对象上传图片
1.获取之前配置的阿里云OSS注册常量信息
//log日志
private static Logger logger = Logger.getLogger(AliyunOSSClientUtil.class);
//阿里云API的内或外网域名
private static String ENDPOINT;
//阿里云API的密钥Access Key ID
private static String ACCESS_KEY_ID;
//阿里云API的密钥Access Key Secret
private static String ACCESS_KEY_SECRET;
//阿里云API的bucket名称
private static String BACKET_NAME;
//阿里云API的文件夹名称
private static String FOLDER;
//初始化属性
static{
ENDPOINT = OSSClientConstants.ENDPOINT;
ACCESS_KEY_ID = OSSClientConstants.ACCESS_KEY_ID;
ACCESS_KEY_SECRET = OSSClientConstants.ACCESS_KEY_SECRET;
BACKET_NAME = OSSClientConstants.BACKET_NAME;
FOLDER = OSSClientConstants.FOLDER;
}
2.导入jar包
aliyun-sdk-oss-3.1.0.jar
3.通过常量域名ENDPOINT ,秘钥ACCESS_KEY_ID 和ACCESS_KEY_SECRET链接阿里云生成OSS存储对象OSSClient
public static OSSClient getOSSClient(){
return new OSSClient(ENDPOINT,ACCESS_KEY_ID, ACCESS_KEY_SECRET);
}
4.判断存储空间是否存在,无则创建
public static String createBucketName(OSSClient ossClient,String bucketName){
//存储空间
final String bucketNames=bucketName;
if(!ossClient.doesBucketExist(bucketName)){
//创建存储空间
Bucket bucket=ossClient.createBucket(bucketName);
logger.info("创建存储空间成功");
return bucket.getName();
}
return bucketNames;
}
5.删除存储空间操作
public static void deleteBucket(OSSClient ossClient, String bucketName){
ossClient.deleteBucket(bucketName);
logger.info("删除" + bucketName + "Bucket成功");
}
6.判断文件夹是否存在,无则创建
public static String createFolder(OSSClient ossClient,String bucketName,String folder){
//文件夹名
final String keySuffixWithSlash =folder;
//判断文件夹是否存在，不存在则创建
if(!ossClient.doesObjectExist(bucketName, keySuffixWithSlash)){
//创建文件夹
ossClient.putObject(bucketName, keySuffixWithSlash, new ByteArrayInputStream(new byte[0]));
logger.info("创建文件夹成功");
//得到文件夹名
OSSObject object = ossClient.getObject(bucketName, keySuffixWithSlash);
String fileDir=object.getKey();
return fileDir;
}
return keySuffixWithSlash;
}
7. 根据key删除OSS服务器上的文件
public static void deleteFile(OSSClient ossClient, String bucketName, String folder, String key){
ossClient.deleteObject(bucketName, folder + key);
logger.info("删除" + bucketName + "下的文件" + folder + key + "成功");
}
8. 上传图片至OSS
public static String uploadObject2OSS(OSSClient ossClient, File file, String bucketName, String folder) {
String resultStr = null;
try {
//以输入流的形式上传文件
InputStream is = new FileInputStream(file);
//文件名
String fileName = file.getName();
//文件大小
Long fileSize = file.length();
//创建上传Object的Metadata
ObjectMetadata metadata = new ObjectMetadata();
//上传的文件的长度
metadata.setContentLength(is.available());
//指定该Object被下载时的网页的缓存行为
metadata.setCacheControl("no-cache");
//指定该Object下设置Header
metadata.setHeader("Pragma", "no-cache");
//指定该Object被下载时的内容编码格式
metadata.setContentEncoding("utf-8");
//文件的MIME，定义文件的类型及网页编码，决定浏览器将以什么形式、什么编码读取文件。如果用户没有指定则根据Key或文件名的扩展名生成，
//如果没有扩展名则填默认值application/octet-stream
metadata.setContentType(getContentType(fileName));
//指定该Object被下载时的名称（指示MINME用户代理如何显示附加的文件，打开或下载，及文件名称）
metadata.setContentDisposition("filename/filesize=" + fileName + "/" + fileSize + "Byte.");
//上传文件 (上传文件流的形式)
PutObjectResult putResult = ossClient.putObject(bucketName, folder + fileName, is, metadata);
//解析结果
resultStr = putResult.getETag();
} catch (Exception e) {
e.printStackTrace();
logger.error("上传阿里云OSS服务器异常." + e.getMessage(), e);
}
return resultStr;
}
9. 通过文件名判断并获取OSS服务文件上传时文件的contentType
public static String getContentType(String fileName){
//文件的后缀名
String fileExtension = fileName.substring(fileName.lastIndexOf("."));
if(".bmp".equalsIgnoreCase(fileExtension)) {
return "image/bmp";
}
if(".gif".equalsIgnoreCase(fileExtension)) {
return "image/gif";
}
if(".jpeg".equalsIgnoreCase(fileExtension) || ".jpg".equalsIgnoreCase(fileExtension) || ".png".equalsIgnoreCase(fileExtension) ) {
return "image/jpeg";
}
if(".html".equalsIgnoreCase(fileExtension)) {
return "text/html";
}
if(".txt".equalsIgnoreCase(fileExtension)) {
return "text/plain";
}
if(".vsd".equalsIgnoreCase(fileExtension)) {
return "application/vnd.visio";
}
if(".ppt".equalsIgnoreCase(fileExtension) || "pptx".equalsIgnoreCase(fileExtension)) {
return "application/vnd.ms-powerpoint";
}
if(".doc".equalsIgnoreCase(fileExtension) || "docx".equalsIgnoreCase(fileExtension)) {
return "application/msword";
}
if(".xml".equalsIgnoreCase(fileExtension)) {
return "text/xml";
}
//默认返回类型
return "image/jpeg";
}
测试
public static void main(String[] args) {
//初始化OSSClient
OSSClient ossClient=AliyunOSSClientUtil.getOSSClient();
//上传文件
String files="D:\\image\\1010.jpg,D:\\image\\1111.jpg,D:\\image\\1212.jpg,D:\\image\\1313.jpg,D:\\image\\2222.jpg,D:\\image\\3333.jpg,"
+ "D:\\image\\4444.jpg,D:\\image\\5555.jpg,D:\\image\\6666.jpg,D:\\image\\7777.jpg,D:\\image\\8888.jpg";
String[] file=files.split(",");
for(String filename:file){
//System.out.println("filename:"+filename);
File filess=new File(filename);
String md5key = AliyunOSSClientUtil.uploadObject2OSS(ossClient, filess, BACKET_NAME, FOLDER);
logger.info("上传后的文件MD5数字唯一签名:" + md5key);
//上传后的文件MD5数字唯一签名:40F4131427068E08451D37F02021473A
}
}