文章目录
1.登录七牛云官网，注册账号并登录2.在项目中导入七牛云依赖3.编写创建文件名工具类4.编写连接七牛云工具类5.编写前端请求的Controller6.上传成功1.登录七牛云官网，注册账号并登录
2.在项目中导入七牛云依赖
<!-- 七牛云依赖 --><!-- /artifact/com.qiniu/qiniu-java-sdk --><dependency><groupId>com.qiniu</groupId><artifactId>qiniu-java-sdk</artifactId><version>7.9.3</version></dependency>
3.编写创建文件名工具类
package com.handsome.utils;import java.text.SimpleDateFormat;import java.util.Date;import java.util.HashMap;import java.util.Map;import java.util.Random;/*** @Author 识时务者* @Date /03/22 19:00* @Version 1.0*/@SuppressWarnings({"all"})public class CreateDestFileNameUtil {private volatile static CreateDestFileNameUtil createDestFileUtil;private CreateDestFileNameUtil() {}public static CreateDestFileNameUtil getCreateDestFileUtil() {if (createDestFileUtil == null) {synchronized (CreateDestFileNameUtil.class) {if (createDestFileUtil == null) {createDestFileUtil = new CreateDestFileNameUtil();}}}return createDestFileUtil;}// 上传的七牛云的获取文件名称的方法public Map<String, Object> getDestFile(String fileName) {String suffixName = fileName.substring(fileName.lastIndexOf("."));// 生成文件名称通用方法SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");Random r = new Random();StringBuilder tempName = new StringBuilder();tempName.append(sdf.format(new Date())).append(r.nextInt(100)).append(suffixName);String newFileName = tempName.toString();Map<String, Object> map = new HashMap();map.put("newFileName", newFileName);return map;}}
4.编写连接七牛云工具类
package com.handsome.utils;import com.alibaba.fastjson.JSON;import mon.QiniuException;import com.qiniu.http.Response;import com.qiniu.storage.Configuration;import com.qiniu.storage.Region;import com.qiniu.storage.UploadManager;import com.qiniu.storage.model.DefaultPutRet;import com.qiniu.util.Auth;import org.ponent;import java.io.InputStream;/*** @Author Handsome* @Date /4/24 9:39* @Version 1.0*/@SuppressWarnings({"all"})@Componentpublic class QiniuUtils {// 设置需要操作的账号的AK和SKprivate static final String ACCESS_KEY = "你的七牛云ACCESS_KEY";private static final String SECRET_KEY = "你的七牛云SECRET_KEY";// 密钥private static final Auth auth = Auth.create(ACCESS_KEY, SECRET_KEY);// 要上传的空间名称private static final String BUCKETNAME = "你的七牛云创建的空间名称";// 认证信息 不能使用static的upToken 会过期// private static final String upToken = auth.uploadToken(BUCKETNAME);// 外链默认域名public static final String DOMAIN = "你的七牛云外链默认域名";例如：http://cdn.handsomehjj.vip/handsomeforum/public boolean upload(InputStream file, String fileName) {//构造一个带指定 Region 对象的配置类Configuration cfg = new Configuration(Region.huanan()); //根据自己的对象空间的地址选（华南）//...其他参数参考类注释UploadManager uploadManager = new UploadManager(cfg);//默认不指定key的情况下，以文件内容的hash值作为文件名try {String upToken = auth.uploadToken(BUCKETNAME);Response response = uploadManager.put(file, "handsomeforum/" + fileName, upToken, null, null);// 解析上传成功的结果//DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);DefaultPutRet putRet = JSON.parseObject(response.bodyString(), DefaultPutRet.class);// 这个returnPath是获得到的外链地址,通过这个地址可以直接打开图片// String returnPath = DOMAIN + putRet.key;return true;} catch (QiniuException ex) {Response r = ex.response;System.err.println(r.toString());try {System.err.println(r.bodyString());} catch (QiniuException ex2) {//ignore}}return false;}
5.编写前端请求的Controller
// axios上传头像到七牛云@PostMapping("/user/upload/yourAvatar/{uid}")@ResponseBodypublic String uploadyourAvatar(@PathVariable String uid,HttpServletRequest httpServletRequest,@RequestParam(value = "file", required = true) MultipartFile file) throws Exception {String fileName = file.getOriginalFilename();if (fileName.isEmpty()) {Map datamap = new HashMap<>();datamap.put("code", 555);datamap.put("msg", "未上传图片！");String jasonmap = JSONObject.toJSONString(datamap);return jasonmap;}// 获取destFile和newFileNameCreateDestFileNameUtil createDestFileUtil = CreateDestFileNameUtil.getCreateDestFileUtil();Map<String, Object> map = createDestFileUtil.getDestFile(fileName);String newFileName = (String) map.get("newFileName");// 使用七牛云工具列上传图片boolean upload = qiniuUtils.upload(file.getInputStream(), newFileName);if (upload) {// 头像图片地址String yourAvatar = QiniuUtils.DOMAIN + newFileName;Map datamap = new HashMap<>();datamap.put("code", 200);datamap.put("msg", "头像上传成功！请重新登录！");String jasonmap = JSONObject.toJSONString(datamap);return jasonmap;} else {Map datamap = new HashMap<>();datamap.put("code", 555);datamap.put("msg", "图片上传失败！");String jasonmap = JSONObject.toJSONString(datamap);return jasonmap;}}
6.上传成功
成功上传到七牛云后获取到图片的地址，保存到数据库，前端获取数据库中的图片地址即可访问七牛云中的图片
