SpringBoot整合aws的示例代码
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2022-03-02 20:53:32
业务需求 将本地的一些文件保存到aws上 引入依赖 创建client 工具类引入依赖
业务需求
- 将本地的一些文件保存到aws上
- 引入依赖
- 创建client
- 工具类
引入依赖
<dependency> <groupid>software.amazon.awssdk</groupid> <artifactid>s3</artifactid> </dependency> <dependency> <groupid>com.amazonaws</groupid> <artifactid>aws-java-sdk-s3</artifactid> </dependency> <dependency> <groupid>com.amazonaws</groupid> <artifactid>aws-java-sdk-sqs</artifactid> </dependency> <dependency> <groupid>software.amazon.awssdk</groupid> <artifactid>sns</artifactid> </dependency> <dependency> <groupid>com.amazonaws</groupid> <artifactid>aws-java-sdk-cloudfront</artifactid> </dependency>
创建client
private s3client createclient() { awscredentialsprovider credentialsprovider = staticcredentialsprovider.create(awsbasiccredentials.create(minioaccesskey, miniosecretkey)); s3client s3 = s3client.builder() .region(region.cn_northwest_1) .credentialsprovider(credentialsprovider) .endpointoverride(uri.create(miniourl)) .build(); return s3; }
aws工具类
public class miniooperate { private string minioaccesskey; private string miniosecretkey; private string miniourl; public miniooperate() { } public miniooperate(string minioaccesskey, string miniosecretkey, string miniourl) { this.minioaccesskey = minioaccesskey; this.miniosecretkey = miniosecretkey; this.miniourl = miniourl; } #创建aws的客户端 private s3client createclient() { awscredentialsprovider credentialsprovider = staticcredentialsprovider.create(awsbasiccredentials.create(minioaccesskey, miniosecretkey)); s3client s3 = s3client.builder() .region(region.cn_northwest_1) .credentialsprovider(credentialsprovider) .endpointoverride(uri.create(miniourl)) .build(); return s3; } // public string generatepresignedurl(string bucketname, string objectkey, string acl) { // url url = null; // try { // awsstaticcredentialsprovider credentialsprovider = // new awsstaticcredentialsprovider( // new basicawscredentials(minioaccesskey, miniosecretkey)); // // amazons3clientbuilder builder = amazons3clientbuilder.standard(); // builder.withendpointconfiguration(new awsclientbuilder.endpointconfiguration(miniourl, regions.cn_northwest_1.getname())); // // amazons3 s3client = builder // .withpathstyleaccessenabled(true) // .withcredentials(credentialsprovider) // .build(); // // // set the presigned url to expire after one hour. // date expiration = new date(); // long exptimemillis = expiration.gettime(); // exptimemillis += 1000 * 60 * 60 * 4; // expiration.settime(exptimemillis); // // // generate the presigned url. // generatepresignedurlrequest generatepresignedurlrequest = // new generatepresignedurlrequest(bucketname, objectkey) // .withmethod(httpmethod.get) // .withexpiration(expiration); // // // set acl // if (!stringutils.isempty(acl)) { // generatepresignedurlrequest.withmethod(httpmethod.put); // generatepresignedurlrequest.addrequestparameter(headers.s3_canned_acl, acl); // } // // url = s3client.generatepresignedurl(generatepresignedurlrequest); // // } catch (amazonserviceexception e) { // // the call was transmitted successfully, but amazon s3 couldn't process // // it, so it returned an error response. // e.printstacktrace(); // } catch (sdkclientexception e) { // // amazon s3 couldn't be contacted for a response, or the client // // couldn't parse the response from amazon s3. // e.printstacktrace(); // } // // if (stringutils.isempty(url)) { // return null; // } // return url.tostring(); // } #获取所有的对象(根据桶和前缀) public list<s3object> listobjects(string bucket, string prefix) { s3client s3client = this.createclient(); list<s3object> contents = null; try { listobjectsv2request request = listobjectsv2request.builder().bucket(bucket).prefix(prefix).build(); listobjectsv2response listobjectsv2response = s3client.listobjectsv2(request); contents = listobjectsv2response.contents(); } finally { this.closeclient(s3client); } return contents; } #上传对象 public void putobject(string bucket, string key, string content) { s3client s3client = this.createclient(); try { bytebuffer bytebuffer = bytebuffer.wrap(content.getbytes(standardcharsets.utf_8)); putobjectresponse putobjectresponse = s3.putobject(putobjectrequest.builder().bucket(bucket).key(key) .build(), requestbody.frombytebuffer(bytebuffer)); } finally { this.closeclient(s3); } } #上传文件 public void putfile(string filepath, string key, string bucket) { s3client s3client = this.createclient(); file tempfile = new file(filepath); try { putobjectresponse putobjectresponse = s3client.putobject(putobjectrequest.builder().bucket(bucket).key(key) .build(), requestbody.fromfile(tempfile)); } catch (exception e) { e.printstacktrace(); } finally { this.closeclient(s3client); } } #获取对象大小 @override public long gets3objectlength(string bucket, string key) { s3client s3client = this.createclient(); long size = 0; try { list<s3object> s3objects = this.listobjects(s3, bucket, key); size = s3objects.get(0).size(); }catch (exception e){ e.printstacktrace(); }finally { this.closeclient(s3); } return size; } # 获取对象 public string getobject(string bucket, string key) { s3client s3client = this.createclient(); try { responsebytes<getobjectresponse> responseresponsebytes = s3.getobject(getobjectrequest.builder().bucket(bucket).key(key).build(), responsetransformer.tobytes()); # responsetransformer.tobytes() 将响应转换为二进制流 return this.decode(responseresponsebytes.asbytebuffer()); } finally { this.closeclient(s3); } } # 获取对象的流 @override public inputstream getinputstream(string bucket, string key) { s3client s3client = this.createclient(); try { responsebytes<getobjectresponse> responseresponsebytes = s3.getobject(getobjectrequest.builder().bucket(bucket).key(key).build(), responsetransformer.tobytes()); return responseresponsebytes.asinputstream(); } finally { this.closeclient(s3); } } #删除对象 public void deleteobject(string bucket, string key) { s3client s3client = this.createclient(); try { deleteobjectrequest deleteobjectrequest = deleteobjectrequest.builder().bucket(bucket).key(key).build(); deleteobjectresponse deleteobjectresponse = s3.deleteobject(deleteobjectrequest); } catch (exception e) { e.printstacktrace(); } finally { this.closeclient(s3); } } #批量删除对象 public void deleteobjects(list<string> buckets, string key) { s3client s3client = this.createclient(); try { string prefix = key.substring(0, key.lastindexof(file.separator)); for (string bucket : buckets) { listobjectsrequest listobjectsrequest = listobjectsrequest.builder().bucket(bucket).prefix(prefix).build(); listobjectsresponse listobjectsresponse = s3.listobjects(listobjectsrequest); list<s3object> contents = listobjectsresponse.contents(); for (s3object content : contents) { string objectkey = content.key(); this.deleteobject(s3, bucket, objectkey); } this.deleteobject(s3, bucket, prefix); } } finally { this.closeclient(s3); } } } public string decode(bytebuffer bytebuffer) { charset charset = standardcharsets.utf_8; return charset.decode(bytebuffer).tostring(); }
其中 minioaccesskey,miniosecretkey, miniourl;分别对应账号、密码、请求地址。需要对应自己的相关信息。
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