Exception: multipart/form-data request failed in Spring Boot - spring

Question

tech stack: Java 14, Spring Boot 2.5.3, MySQL 8.0.26, JPA
I'v got a spring boot uploading Excel web application. Excel file with 14KB capacity was uploaded successfully. However, if you try to upload an Excel file with 15MB and 50MB capacity, the following exception occurs.
I guess that server connection timed out when uploading. I guess the server to be closed before file is uploaded due to the short server connection time. To solve this problem, I tried to change the server settings in application.properties. I found some property. But it was not proper. The IDE underlines like this. I also visited Spring Common Application Properties Page to find the appropriate property, but I couldn't find it.
I would like to know what causes the exception. And I wonder if this is the right way to solve the problem.
Thank you in advance. If you reply, I will reply as soon as possible.
exception console
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.impl.IOFileUploadException: Processing of multipart/form-data request failed. java.io.EOFException] with root cause
java.io.EOFException: null
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1294) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1206) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:805) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.coyote.http11.Http11InputBuffer.access$300(Http11InputBuffer.java:42) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.coyote.http11.Http11InputBuffer$SocketInputBuffer.doRead(Http11InputBuffer.java:1172) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:101) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.coyote.http11.Http11InputBuffer.doRead(Http11InputBuffer.java:249) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.coyote.Request.doRead(Request.java:640) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:317) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.InputBuffer.checkByteBufferEof(InputBuffer.java:600) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:340) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:132) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at java.base/java.io.FilterInputStream.read(FilterInputStream.java:132) ~[na:na]
at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:975) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:879) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at java.base/java.io.FilterInputStream.read(FilterInputStream.java:132) ~[na:na]
at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at java.base/java.io.FilterInputStream.read(FilterInputStream.java:106) ~[na:na]
at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:98) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:291) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.Request.parseParts(Request.java:2922) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.Request.getParts(Request.java:2824) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.apache.catalina.connector.RequestFacade.getParts(RequestFacade.java:1098) ~[tomcat-embed-core-9.0.52.jar:9.0.52]
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:95) ~[spring-web-5.3.9.jar:5.3.9]
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:88) ~[spring-web-5.3.9.jar:5.3.9]
at org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:122) ~[spring-web-5.3.9.jar:5.3.9]
at ...
application.properties
server.tomcat.connection-timeout is right. But server.tomcat.disable-upload-timeout and server.connectionUploadTimeout are not proper.
server.tomcat.connection-timeout=5000
server.tomcat.disable-upload-timeout=false
server.connectionUploadTimeout=5000
# MultiPart
spring.servlet.multipart.max-file-size=50MB
spring.servlet.multipart.max-request-size=50MB
controller
package com.nc.ojtfirstproject.web;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import com.nc.ojtfirstproject.message.ResponseMessage;
import com.nc.ojtfirstproject.service.StandardProductService;
#Controller
public class StandardProductController {
private final StandardProductService standardProductService;
public StandardProductController(StandardProductService standardProductService) {
this.standardProductService = standardProductService;
}
#PostMapping("/excel/upload")
public ResponseEntity<ResponseMessage> uploadFile(#RequestParam("file") MultipartFile file) {
String TYPE = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
HttpStatus status = HttpStatus.OK;
String message = "";
if (TYPE.equals(file.getContentType())) {
try {
standardProductService.save(file);
status = HttpStatus.OK;
message = "success: " + file.getOriginalFilename();
} catch (Exception e) {
status = HttpStatus.EXPECTATION_FAILED;
message = "fail: " + file.getOriginalFilename();
}
} else {
status = HttpStatus.BAD_REQUEST;
message = "Please upload excel file";
}
return ResponseEntity.status(status).body(new ResponseMessage(message));
}
}
service
package com.nc.ojtfirstproject.service;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;
import com.nc.ojtfirstproject.domain.standardProduct.StandardProduct;
import com.nc.ojtfirstproject.domain.standardProduct.StandardProductRepository;
#Service
public class StandardProductService {
private final StandardProductRepository standardProductRepository;
public StandardProductService(StandardProductRepository standardProductRepository) {
this.standardProductRepository = standardProductRepository;
}
#Transactional
public void save(MultipartFile file) {
final int TRANSACTION_CHUNK_LIMIT = 10000;
List<StandardProduct> standardProductList = new ArrayList<StandardProduct>();
try {
Workbook workbook = new XSSFWorkbook(file.getInputStream());
Sheet sheet = workbook.getSheetAt(0);
for (int i = 1; i < sheet.getPhysicalNumberOfRows(); i++) {
Row row = sheet.getRow(i);
StandardProduct standardProduct = new StandardProduct();
standardProduct.setCode((int) row.getCell(0).getNumericCellValue());
standardProduct.setCategoryCode((int) row.getCell(1).getNumericCellValue());
standardProduct.setName(row.getCell(2).getStringCellValue());
standardProduct.setLowestPrice((int) row.getCell(3).getNumericCellValue());
standardProduct.setMobileLowestPrice((int) row.getCell(4).getNumericCellValue());
standardProduct.setAveragePrice((int) row.getCell(5).getNumericCellValue());
standardProduct.setCompanies((int) row.getCell(6).getNumericCellValue());
standardProductList.add(standardProduct);
// TRANSACTION_CHUNK_LIMIT saveAll()
if (TRANSACTION_CHUNK_LIMIT == standardProductList.size()) {
standardProductRepository.saveAll(standardProductList);
standardProductList.clear();
System.out.println(TRANSACTION_CHUNK_LIMIT + " success");
}
}
workbook.close();
} catch (IOException e) {
throw new RuntimeException("save fail: " + e.getMessage());
}
// TRANSACTION_CHUNK_LIMIT saveAll()
try {
standardProductRepository.saveAll(standardProductList);
} catch (Exception e) {
throw new RuntimeException("save fail: " + e.getMessage());
}
}
}
build.gradle
plugins {
id 'org.springframework.boot' version '2.5.4'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.nc'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '14'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'io.springfox:springfox-boot-starter:3.0.0'
implementation 'org.apache.poi:poi:4.1.2'
implementation 'org.apache.poi:poi-ooxml:4.1.2'
compileOnly 'org.projectlombok:lombok'
developmentOnly 'org.springframework.boot:spring-boot-devtools'
runtimeOnly 'mysql:mysql-connector-java'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}

Answer 1

I had similar error and updated the following configuration parameters in the application.properties file like so:
spring.servlet.multipart.max-file-size=XX MB
spring.servlet.multipart.max-request-size=XX MB
server.tomcat.connectionUploadTimeout=XXX (in miliseconds)
server.tomcat.connectionTimeout=XXX (in miliseconds)
server.tomcat.connection-timeout=XXX (in miliseconds)
server.tomcat.max-swallow-size=XX MB
server.tomcat.max-http-form-post-size=XX MB
server.tomcat.background-processor-delay=XXX (in miliseconds)
server.tomcat.keep-alive-timeout=XXX (in miliseconds)
server.tomcat.max-swallow-size=XXX MB
Setting these parameters like shown should solve the problem.