java上传阿里云oss
文章目录
-
-
- 第一步 pom.xml引入
- 第二步 在application.yml中添加
- 第三步 在util包下面创建OssUtil
- 第四步 在Controller层创建OssController类
- 前端上传
-
第一步 pom.xml引入
com.aliyun.oss
aliyun-sdk-oss
3.6.0
第二步 在application.yml中添加
aliyun:
oss:
bucketName: 你的bucket名字
endpoint: oss-cn-chengdu.aliyuncs.com
accessKeyId: 你的keyid
accessKeySecret: 你的secret
第三步 在util包下面创建OssUtil
package com.hailan.hailan.util;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import org.apache.tomcat.util.http.fileupload.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.thymeleaf.util.StringUtils;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
/**
* 阿里云OSS服务器工具类
*/
@Component
public class OssUtil {
//---------变量----------
protected static final Logger log = LoggerFactory.getLogger(OssUtil.class);
@Value("${aliyun.oss.endpoint}")
private String endpoint;
@Value("${aliyun.oss.accessKeyId}")
private String accessKeyId;
@Value("${aliyun.oss.accessKeySecret}")
private String accessKeySecret;
@Value("${aliyun.oss.bucketName}")
private String bucketName;
//文件存储目录
private String filedir = "MyFile/";
/**
* 1、单个文件上传
* @param file
* @return 返回完整URL地址
*/
public String uploadFile(MultipartFile file) {
String fileUrl = uploadImg2Oss(file);
String str = getFileUrl(fileUrl);
return str.trim();
}
/**
* 1、单个文件上传(指定文件名（带后缀）)
* @param file
* @return 返回完整URL地址
*/
public String uploadFile(MultipartFile file,String fileName) {
try {
InputStream inputStream = file.getInputStream();
this.uploadFile2OSS(inputStream, fileName);
return fileName;
}
catch (Exception e) {
return "上传失败";
}
}
/**
* 2、多文件上传
* @param fileList
* @return 返回完整URL，逗号分隔
*/
public String uploadFile(List fileList) {
String fileUrl = "";
String str = "";
String photoUrl = "";
for(int i = 0;i< fileList.size();i++){
fileUrl = uploadImg2Oss(fileList.get(i));
str = getFileUrl(fileUrl);
if(i == 0){
photoUrl = str;
}else {
photoUrl += "," + str;
}
}
return photoUrl.trim();
}
/**
* 3、通过文件名获取文完整件路径
* @param fileUrl
* @return 完整URL路径
*/
public String getFileUrl(String fileUrl) {
if (fileUrl !=null && fileUrl.length()>0) {
String[] split = fileUrl.split("/");
String url = this.getUrl(this.filedir + split[split.length - 1]);
return url;
}
return null;
}
//获取去掉参数的完整路径
private String getShortUrl(String url) {
String[] imgUrls = url.split("\\?");
return imgUrls[0].trim();
}
// 获得url链接
private String getUrl(String key) {
// 设置URL过期时间为20年 3600l* 1000*24*365*20
Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 20);
// 生成URL
OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
if (url != null) {
return getShortUrl(url.toString());
}
return null;
}
// 上传文件
private String uploadImg2Oss(MultipartFile file) {
//1、限制最大文件为1G
if (file.getSize() > 1024 * 1024 * 1024) {
return "文件太大";
}
String fileName = file.getOriginalFilename();
String suffix = fileName.substring(fileName.lastIndexOf(".")).toLowerCase(); //文件后缀
String uuid = UUID.randomUUID().toString();
String name = uuid + suffix;
try {
InputStream inputStream = file.getInputStream();
this.uploadFile2OSS(inputStream, name);
return name;
}
catch (Exception e) {
return "上传失败";
}
}
// 上传文件（指定文件名）
private String uploadFile2OSS(InputStream instream, String fileName) {
String ret = "";
try {
//创建上传Object的Metadata
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setContentLength(instream.available());
objectMetadata.setCacheControl("no-cossClientache");
objectMetadata.setHeader("Pragma", "no-cache");
objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
objectMetadata.setContentDisposition("inline;filename=" + fileName);
//上传文件
OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
PutObjectResult putResult = ossClient.putObject(bucketName, filedir + fileName, instream, objectMetadata);
ret = putResult.getETag();
} catch (IOException e) {
log.error(e.getMessage(), e);
} finally {
try {
if (instream != null) {
instream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return ret;
}
/**
* 删除某个Object
*
* @param bucketUrl
* @return
*/
public boolean deleteObject(String bucketUrl) {
bucketUrl = bucketUrl.substring(bucketUrl.lastIndexOf(filedir));
OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
try {
// 删除Object.
client.deleteObject(bucketName, bucketUrl);
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
client.shutdown();
}
return true;
}
/**
* 删除多个Object
*
* @param bucketUrls
* @return
*/
public boolean deleteObjects(List bucketUrls) {
OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
try {
// 删除Object.
DeleteObjectsResult deleteObjectsResult = client.deleteObjects(new DeleteObjectsRequest(bucketName).withKeys(bucketUrls));
List deletedObjects = deleteObjectsResult.getDeletedObjects();
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
client.shutdown();
}
return true;
}
private static String getcontentType(String FilenameExtension) {
if (FilenameExtension.equalsIgnoreCase(".bmp")) {
return "image/bmp";
}
if (FilenameExtension.equalsIgnoreCase(".gif")) {
return "image/gif";
}
if (FilenameExtension.equalsIgnoreCase(".jpeg") ||
FilenameExtension.equalsIgnoreCase(".jpg") ||
FilenameExtension.equalsIgnoreCase(".png")) {
return "image/jpeg";
}
if (FilenameExtension.equalsIgnoreCase(".html")) {
return "text/html";
}
if (FilenameExtension.equalsIgnoreCase(".txt")) {
return "text/plain";
}
if (FilenameExtension.equalsIgnoreCase(".vsd")) {
return "application/vnd.visio";
}
if (FilenameExtension.equalsIgnoreCase(".pptx") ||
FilenameExtension.equalsIgnoreCase(".ppt")) {
return "application/vnd.ms-powerpoint";
}
if (FilenameExtension.equalsIgnoreCase(".docx") ||
FilenameExtension.equalsIgnoreCase(".doc")) {
return "application/msword";
}
if (FilenameExtension.equalsIgnoreCase(".xml")) {
return "text/xml";
}
//PDF
if (FilenameExtension.equalsIgnoreCase(".pdf")) {
return "application/pdf";
}
return "image/jpeg";
}
public static void main(String[] args) {
OssUtil o = new OssUtil();
//http://dqva.oss-cn-beijing.aliyuncs.com/
String bucketUrl = "http://dqva.oss-cn-beijing.aliyuncs.com/my_file/706491db-4fde-4d9c-9a91-ef929d53a45c.jpg";
String url = bucketUrl.substring(bucketUrl.lastIndexOf("my_file"));
System.out.println(url);
// boolean b = o.deleteObject( "my_file/706491db-4fde-4d9c-9a91-ef929d53a45c.jpg");
// System.out.println(b);
//下载
// String urllink = "https://shenlin.oss-cn-beijing.aliyuncs.com/my_file/ce176d37-dbba-4f2b-8b9c-4c76d0316274.jpg GE8LASyBUExjxPyLFfpmTs&Signature=F96dQ2zCdTPG66PlbQgpGxec34U%3D&versionId=CAEQAhiBgIC.nJm0vBciIDYwOTdmYjIzOGFhNjRhYTI5ZTgzMTRmZTE2YTlmMDlh&response-content-type=application%2Foctet-stream";
//
// method1(urllink);
}
//----下载---------
public static void method1(String urllink){
System.out.println("下载1");
try {
URL url = new URL(urllink);
//打开到此 URL 的连接并返回一个用于从该连接读入的 InputStream。
InputStream in = url.openStream();
download(in);
System.out.println("下载2");
} catch (IOException e){
}
}
public static void download(InputStream inputStream){
try {
System.out.println("下载3");
File file = new File("D:\\A.jpg");
OutputStream outputStream = new FileOutputStream(file);
int byteCount = 0;
//1M逐个读取
byte[] bytes = new byte[1024*1024];
while ((byteCount = inputStream.read(bytes)) != -1){
outputStream.write(bytes, 0, byteCount);
}
inputStream.close();
outputStream.close();
} catch (FileNotFoundException e){
e.printStackTrace();
} catch (IOException e){
e.printStackTrace();
}
}
}
第四步 在Controller层创建OssController类
package com.hailan.hailan.controller;
import com.hailan.hailan.util.OssUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import java.util.HashMap;
import java.util.Map;
@RestController
@RequestMapping("/oss")
public class OssController {
@Autowired
OssUtil ossUtil; //注入OssUtil
@PostMapping("/uploadfile")
public Object fileUpload(@RequestParam("file") MultipartFile file)
{
try {
String url = ossUtil.uploadFile(file); //调用OSS工具类
Map returnbody = new HashMap<>();
Map returnMap = new HashMap<>();
returnMap.put("url", url);
returnbody.put("data",returnMap);
returnbody.put("code","200");
returnbody.put("message","上传成功");
return returnbody;
}
catch (Exception e) {
Map returnbody = new HashMap<>();
returnbody.put("data",null);
returnbody.put("code","400");
returnbody.put("message","上传失败");
return returnbody;
}
}
@PostMapping("/fileDELET")
public boolean fileDELET(String bucketUrl) {
boolean b = ossUtil.deleteObject(bucketUrl);
return b;
}
}
前端上传
templates下面创建index.html
阿里云oss上传