在此服务类中,我可以在其中编写文件压缩代码并将文件另存为“ Base64”格式。当我在aws s3存储桶中使用邮递员上传MultipartFile []时,出现“ 413 Request Entity Too Large”错误。如何解决此错误。
这是我的服务等级
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import javax.annotation.PostConstruct;
import org.apache.commons.codec.binary.Base64;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.CannedAccessControlList;
import com.amazonaws.services.s3.model.PutObjectRequest;
@Component
public class TeacherGalleryService {
@Autowired
TeacherGalleryRepository galleryRepo;
private AmazonS3 amazonS3;
@Value("${aws.access.key.id}")
private String accessKey;
@Value("${aws.access.key.secret}")
private String secretKey;
@Value("${aws.region}")
private String region;
@Value("${aws.s3.audio.bucket}")
private String s3Bucket;
@Value("${aws.endpointUrl}")
private String endpointUrl;
@SuppressWarnings("deprecation")
@PostConstruct
private void initializeAmazon() {
System.out.println(accessKey);
AWSCredentials credentials = new BasicAWSCredentials(this.accessKey, this.secretKey);
this.amazonS3 = new AmazonS3Client(credentials);
}
public String uploadFile(MultipartFile file) {
String fileUrl = "";
try {
File myFile = convertMultiPartToFile(file);
String fileName = generateFileName(file);
fileUrl = endpointUrl + "/" + s3Bucket + "/" + fileName;
uploadFileTos3bucket(fileName, myFile);
myFile.delete();
} catch (Exception e) {
e.printStackTrace();
}
return fileUrl;
}
private File convertMultiPartToFile(MultipartFile file) throws IOException {
File convFile = new File(file.getOriginalFilename());
FileOutputStream fos = new FileOutputStream(convFile);
fos.write(file.getBytes());
fos.close();
return convFile;
}
private String generateFileName(MultipartFile multiPart) {
return multiPart.getOriginalFilename().replace(" ", "_");
}
private void uploadFileTos3bucket(String fileName, File file) {
amazonS3.putObject(new PutObjectRequest(s3Bucket, fileName, file)
.withCannedAcl(CannedAccessControlList.PublicRead));
}
public TeacherGallery storeFile(TeacherGallery teacherGallery, MultipartFile file) {
String fileNames = StringUtils.cleanPath(file.getOriginalFilename());
String fileUrls = endpointUrl + "/" + s3Bucket + "/" + fileNames;
byte[] images = null;
try {
images = Base64.encodeBase64(file.getBytes());
} catch (IOException e) {
e.printStackTrace();
}
teacherGallery = new TeacherGallery(images, fileNames, fileUrls, teacherGallery.getTitle());
return galleryRepo.save(teacherGallery);
}
}
这是我的控制器类
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import com.findlogics.SchoolServicesFindlogics.Student.StudentGallery;
import com.findlogics.SchoolServicesFindlogics.Student.StudentGalleryService;
@Controller
public class TeacherGalleryController {
@Autowired
TeacherGalleryService galleryService;
@PostMapping("/tchrsinglefile")
@ResponseBody
public TeacherGallery uploadFile(TeacherGallery tchrgallery, @RequestPart(value = "file") MultipartFile file) {
galleryService.uploadFile(file);
return tchrgallery = galleryService.storeFile(tchrgallery, file);
}
@PostMapping("/tchrmultiplefiles")
@ResponseBody
public List<TeacherGallery> uploadFiles(TeacherGallery tchrgallery, @RequestParam("files") MultipartFile[] files){
return Arrays.asList(files)
.stream()
.map(file -> uploadFile(tchrgallery, file))
.collect(Collectors.toList());
}
}
这似乎是在Spring的Servlet容器中配置的较小尺寸。看看Web properties for your Spring Boot:
您想研究这些属性
spring.servlet.multipart.max-file-size (default 1MB)
spring.servlet.multipart.max-request-size (default 10 MB)