springboot集成阿里OSS上传文件

开发前的准备：

自己在阿里云上申请免费的Oss对象存储，新建Bucket---读写权限选择公共读,我开始这里忘了导致后来踩了小坑

接下来是代码中的一些配置：我用的是springboot

1》添加pom依赖:

         <!--OSS上传--><dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>2.8.3</version></dependency>

2》yml配置：

oss:endpoint: http://oss-cn-hangzhou.aliyuncs.comaccessKeyId: 你自己的---阿里云右上角头像点击选择可以获取accessKeySecret: 你自己的---阿里云右上角头像点击选择可以获取bucketName: tao11140------你自己创建的bucket节点key: group1/pic-----------目录前缀webserver: https://tao11140.oss-cn-hangzhou.aliyuncs.com

3》添加配置类：

OssProperties：

@Data
@ConfigurationProperties(prefix = "oss")
public class OssProperties {private String endpoint;private String accessKeyId;private String accessKeySecret;private String bucketName;private String key;private String webserver;
}

OssConfig：

Configuration
@EnableConfigurationProperties(OssProperties.class)
public class OssConfig {@Autowiredprivate OssProperties ossProperties;@Beanpublic OSSClient getOSSClient(){ClientConfiguration conf=new ClientConfiguration();// Set the maximum number of allowed open HTTP connectionsconf.setMaxConnections(1000);conf.setConnectionTimeout(600000);conf.setSocketTimeout(600000);OSSClient client = new OSSClient(ossProperties.getEndpoint(),ossProperties.getAccessKeyId(),ossProperties.getAccessKeySecret(),conf);return client;}}

OssClientUtils：

@Component
public class OssClientUtils {@Autowiredprivate OssConfig ossConfig;@Autowiredprivate OssProperties ossProperties;/*** 上传图片* @param file* @param nfixName* @param schoolId* @return*/public String uploadPic(MultipartFile file, String nfixName, Long schoolId, String module){String result="";  //返回图片路径OSSClient ossClient =null;String key=assembleOssPath(schoolId,module,nfixName);  //目标oss文件路径try {ossClient=ossConfig.getOSSClient();PutObjectResult tip=ossClient.putObject(ossProperties.getBucketName(), key, new ByteArrayInputStream(file.getBytes()));if(tip!=null && !"".equals(tip.getETag())) {
//                result = key;result = ossProperties.getWebserver() + "/" + key;}}catch (Exception ex){ex.printStackTrace();}return result;}public String uploadPic(MultipartFile file, String nfixName, String module){String result="";  //返回图片路径OSSClient ossClient =null;String key=assembleOssPath(module,nfixName);  //目标oss文件路径try {ossClient=ossConfig.getOSSClient();PutObjectResult tip=ossClient.putObject(ossProperties.getBucketName(), key, new ByteArrayInputStream(file.getBytes()));if(tip!=null && !"".equals(tip.getETag())) {
//                result = key;result = ossProperties.getWebserver() + "/" + key;}}catch (Exception ex){ex.printStackTrace();}return result;}private List<MultipartFile> getFileList(HttpServletRequest request, String key){//创建一个通用的多部分解析器CommonsMultipartResolver multipartResovler = new CommonsMultipartResolver();//判断 request 是否有文件上传,即多部分请求if (!multipartResovler.isMultipart(request)) {//无附件上传return null;}// 转型为MultipartHttpRequest：MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;// 获得文件：List<MultipartFile> files = multipartRequest.getFiles(key);System.out.println(files.size());return files;}public String uploadImage(HttpServletRequest request, String module) {Map<String, MultipartFile> files = this.getFileMap(request);String result = "";if (files == null || files.keySet().size() <=0) {return result;}for(String key : files.keySet()){MultipartFile file = files.get(key);// 获取文件名String uploadFileName = file.getOriginalFilename();if(StringUtils.isBlank(uploadFileName)){return result;}//不带.的后缀String nfixName = uploadFileName.substring(uploadFileName.lastIndexOf(".")+1);result = this.uploadPic(file, nfixName, module);return result;}return null;}public Map<String, MultipartFile> getFileMap(HttpServletRequest request){//创建一个通用的多部分解析器CommonsMultipartResolver multipartResovler = new CommonsMultipartResolver();//判断 request 是否有文件上传,即多部分请求if (!multipartResovler.isMultipart(request)) {//无附件上传return null;}// 转型为MultipartHttpRequest：MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;// 获得文件：Map<String, MultipartFile> files = multipartRequest.getFileMap();return files;}//组装上传路径private String assembleOssPath(Long schoolId,String ossConstant,String suffix){return ossProperties.getKey()+schoolId+ossConstant+ UUID.randomUUID().toString().replace("-", "")+"."+suffix;}private String assembleOssPath(String ossConstant,String suffix){return ossProperties.getKey()+ossConstant+ UUID.randomUUID().toString().replace("-", "")+"."+suffix;}}

4》测试Controller:

@Api(value="OssController",description="oss上传文件测试",tags={"oss上传文件测试"})
@RestController
@RequestMapping("oss")
public class OssController {@Autowiredprivate OssClientUtils ossClientUtils;@RequestMapping(value = "uploadPic",method = RequestMethod.POST)public String uploadOss(HttpServletRequest request,String path) {return ossClientUtils.uploadImage(request, path);}
}

至此，代码已经准备完毕，接下来postman本地模拟上传图片看看：

postman需要这么传：

首先传参需要传递需要自定义保存的路径，我这里是test

设置Headers:

选择上传文件：

发送请求后，报错：

Caused by: java.lang.NoClassDefFoundError: org/apache/commons/fileupload/disk/DiskFileItemFactory

解决：

缺少pom依赖：

        <!-- common --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2.2</version></dependency><!-- 上传文件开始 --><dependency><groupId>net.sf.staccatocommons</groupId><artifactId>commons-io</artifactId><version>1.2</version></dependency><!-- 上传文件结束 -->

再次发送请求：

OK图片上传成功，返回图片路径

浏览器中访问显示：

<Error>
<Code>AccessDenied</Code>
<Message>You do not have read permission on this object.</Message>
<RequestId>5D78AA96EBEC9441BEB05BA1</RequestId>
<HostId>tao11140.oss-cn-hangzhou.aliyuncs.com</HostId>
</Error>

神码，竟然没有权限？？？赶紧去阿里云后台看了下，图片确实是上传成功了

那么可能是要设置一个全局的读取权限

在oss后台的基础设置中找到读写权限，更改为公共读即可

接下来我尝试上传一个apk文件到oss，大概一兆多的大小，结果报错：

The field file exceeds its maximum permitted size of 1048576 bytes.

查看文档之后，原因可能是springboot限制了单次请求的文件大小

解决：

Spring Boot1.4版本后配置更改为:


spring.http.multipart.maxFileSize = 10Mb
spring.http.multipart.maxRequestSize=100Mb

Spring Boot2.0之后的版本配置修改为:


spring.servlet.multipart.max-file-size = 10MB
spring.servlet.multipart.max-request-size=100MB

我的yml添加配置如下：如果是想要不限制文件上传的大小，那么就把两个值都设置为-1就行

spring:servlet:multipart:max-file-size: 10MBmax-request-size: 100MB

之后重新请求上传apk,上传成功

至此，springboot集成oss文件上传圆满成功