版权声明： https://blog.csdn.net/W_Leodong/article/details/79868023
java图片上传-文件(图片)上传到七牛
一、在配置文件中引入依赖（注：七牛开发者url：https://developer.qiniu.com/kodo）
<-- 引入依赖 -->
<dependency>
<groupId>com.qiniu</groupId>
<artifactId>qiniu-java-sdk</artifactId>
<version>7.2.6</version>
<scope>compile</scope>
</dependency>
二、工具类（UploadUtil
）
import java.io.IOException;
import java.io.InputStream;
import com.foriseland.fjf.base.BaseController;
import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.common.Zone;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
/**
* @describe 图片上传
* @author: LeoD
* @createTime 2018年3月27日 下午12:23:33
*/
public class UploadUtil extends BaseController {
private static final Logger logger = LoggerFactory.getLogger(UploadUtil.class);
private static final String ACCESS_KEY = "RGnPGwxZhQGoB-yEx4Yc-40位的key...";
private static final String SECRET_KEY = "_h6eA9vScnPzhiWAdEa1-40位的key...";
private static final String BUCKET = "test2";
public static final String IMG_SUFFIX_LIST = "jpg,jpeg,gif,png,ico,bmp,jpeg";
public static final String URL = "http://p22kr8qzx.bkt.clouddn.com/";
/**
* 上传图片
* @param file
* @return
* @throws IOException
*/
public static String upload(@RequestParam MultipartFile file) {
if (file == null) {
logger.warn("上传文件为空!");return null;
}
InputStream inputStream = null;
try {
/** 获取文件的后缀* */
if (!checkFile(file.getOriginalFilename())) {
logger.warn("上传文件类型不支持");
return null;
}
inputStream = file.getInputStream();
DefaultPutRet ret = qiNiuUpload(inputStream);
if (null == ret) {
logger.error("上传文件服务器返回为null");
return null;
}
logger.info("上传图片名称:" + file.getOriginalFilename());
logger.info("上传后hash:" + ret.hash);
logger.info("上传后key:" + ret.key);
return URL+"&#&"+ret.hash;
} catch (QiniuException ex) {
logger.error("上传七牛服务器异常", ex);
} catch (Exception e) {
logger.error("上传异常", e);
} finally {
try {
inputStream.close();
} catch (IOException e) {
logger.error("上传文件，关闭输入流异常", e);
}
}
return null;
}
/**
* 检测图片文件类型
* @param fileName
* @return
*/
public static boolean checkFile(String fileName) {
boolean flag = false;
String suffix = fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length());
logger.info("上传文件后缀:" + suffix);
if (IMG_SUFFIX_LIST.contains(suffix.trim().toLowerCase())) {
flag = true;
}
return flag;
}
/**
* 上传七牛服务器
* @param is
* @return
*/
private static DefaultPutRet qiNiuUpload(InputStream is) throws Exception {
Configuration cfg = new Configuration(Zone.zone0());
UploadManager uploadManager = new UploadManager(cfg);
Auth auth = Auth.create(ACCESS_KEY, SECRET_KEY);
String upToken = auth.uploadToken(BUCKET);
com.qiniu.http.Response response = uploadManager.put(is, null, upToken, null, null);
//解析上传成功的结果
DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
logger.info(putRet.toString());
logger.info(putRet.key);
logger.info(putRet.hash);
return putRet;
}
}
三、入参的实体Dto
public class CrowdDto implements Serializable{
private static final long serialVersionUID = 1L; //序列化生成uid，在后面生成一个uid
private String crowdId; //编号
private String userId; //用户Id
private String crowdName;//名称
private String crowdLogo;//群头像
private MultipartFile multipartFile; //文件对象属性
public MultipartFile getMultipartFile() {
return multipartFile;
}
public void setMultipartFile(MultipartFile multipartFile) {
this.multipartFile = multipartFile;
}
public String getCrowdName() {
return crowdName;
}
public void setCrowdName(String crowdName) {
this.crowdName = crowdName;
}
public String getCrowdLogo() {
return crowdLogo;
}
public void setCrowdLogo(String crowdLogo) {
this.crowdLogo = crowdLogo;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getCrowdId() {
return crowdId;
}
public void setCrowdId(String crowdId) {
this.crowdId = crowdId;
}
//生成Json字符串（类似重写ToString）
@Override public String toString() {
String js = JSONObject.toJSONString(this);
return js;
}
//静态生成uid
public static long getSerialVersionUID() {
return serialVersionUID;
}
}
四、API层
public interface IWASCrowdInfoApi {
/**
* 上传文件（图片）
* @param request* @return
*/
public String uploadFile(@RequestBody CrowdDto requestDto);
}
五、Provide层（实现API）
/**
*
* @className: BackendCrowdInfoProvide
* @describe:
* @author: LeoD
* @createTime
*/
@Service("backendCrowdInfoProvide")
public class BackendCrowdInfoProvide implements IWASCrowdInfoApi {
@Override
public String uploadFile(CrowdDto requestDto) {
return UploadUtil.upload(requestDto.getMultipartFile());
}
}
六
、Controller层(通过Swagger来进行测试的，详情配置见回复的链接）
@CrossOrigin(origins = "*", maxAge = 3600)
@Controller@Api(tags="信息管理")
@RequestMapping("/crowdInfo")
public class CrowdInfoController {
private static final Logger logger = LoggerFactory.getLogger(CrowdInfoController.class);
@Autowired
private IWASCrowdInfoApi iWASCrowdInfoApi;
/*上传文件(图片)*/
@ApiOperation(value = "上传图片", notes = "上传图片", httpMethod = "POST") @RequestMapping(value="uploadFile", method=RequestMethod.POST, produces="text/plain;charset=UTF-8;", consumes="application/json") @ResponseBody
public Response<String> uploadFile(@RequestBody CrowdDto requestDto){
String url = iWASCrowdInfoApi.uploadFile(requestDto);
Response<String> response = Response.create();
response.setData(url);return response;
}
}