인프런 커뮤니티 질문&답변

차노쓰님의 프로필 이미지
차노쓰

작성한 질문수

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

서블릿과 파일 업로드2

itemName에 null

작성

·

351

0

public class ServletUploadControllerV2 {
    @Value("${file.dir}")
    private String fileDir;
    @GetMapping("/upload")
    public String newFile() {
        return "upload-form";
    }
    @PostMapping("/upload")
    public String saveFileV1(HttpServletRequest request) throws
            ServletException, IOException {
        log.info("request={}", request);
        String itemName = request.getParameter("itemName");
        log.info("itemName={}", itemName);
        Collection<Part> parts = request.getParts();
        log.info("parts={}", parts);
        for (Part part : parts) {
            log.info("==== PART ====");
            log.info("name={}", part.getName());
            Collection<String> headerNames = part.getHeaderNames();
            for (String headerName : headerNames) {
                log.info("header {}: {}", headerName,
                        part.getHeader(headerName));
            }
            //편의 메서드
            //content-disposition; filename
            log.info("submittedFileName={}", part.getSubmittedFileName());
            log.info("size={}", part.getSize()); //part body size
            //데이터 읽기
            InputStream inputStream = part.getInputStream();
            String body = StreamUtils.copyToString(inputStream,
                    StandardCharsets.UTF_8);
            log.info("body={}", body);
            //파일에 저장하기
            if (StringUtils.hasText(part.getSubmittedFileName())) {
                String fullPath = fileDir + part.getSubmittedFileName();
                log.info("파일 저장 fullPath={}", fullPath);
                part.write(fullPath);
            }
        }
        return "upload-form";
    }
}

 

<로그>

2023-08-15 18:53:08.744 INFO 11860 --- [nio-8081-exec-7] h.u.c.ServletUploadControllerV2 : request=org.apache.catalina.connector.RequestFacade@46f8d0d

2023-08-15 18:53:08.744 INFO 11860 --- [nio-8081-exec-7] h.u.c.ServletUploadControllerV2 : itemName=null

2023-08-15 18:53:08.744 INFO 11860 --- [nio-8081-exec-7] h.u.c.ServletUploadControllerV2 : parts=[]

2023-08-15 18:53:08.747 DEBUG 11860 --- [nio-8081-exec-7] o.a.coyote.http11.Http11InputBuffer : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [926]

2023-08-15 18:53:08.747 DEBUG 11860 --- [nio-8081-exec-7] o.a.coyote.http11.Http11InputBuffer : Received []

2023-08-15 18:53:08.747 DEBUG 11860 --- [nio-8081-exec-7] o.apache.coyote.http11.Http11Processor : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@7e5a37d:org.apache.tomcat.util.net.NioChannel@72e2ee37:java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1:8081 remote=/0:0:0:0:0:0:0:1:50696]], Status in: [OPEN_READ], State out: [OPEN]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.a.coyote.http11.Http11InputBuffer : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [926]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-9] o.a.coyote.http11.Http11InputBuffer : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [0]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.apache.coyote.http11.Http11Processor : Error parsing HTTP request header

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-9] o.apache.coyote.http11.Http11Processor : Error parsing HTTP request header

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.apache.coyote.http11.Http11Processor : Error state [CLOSE_CONNECTION_NOW] reported while processing request

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-8] o.apache.coyote.http11.Http11Processor : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@45100ea6:org.apache.tomcat.util.net.NioChannel@3f9eb895:java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1:8081 remote=/0:0:0:0:0:0:0:1:50697]], Status in: [OPEN_READ], State out: [CLOSED]

2023-08-15 18:53:16.474 DEBUG 11860 --- [nio-8081-exec-9] o.apache.coyote.http11.Http11Processor : Error state [CLOSE_CONNECTION_NOW] reported while processing request

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1347) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1234) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:785) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:348) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.78.jar:9.0.78]

at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

2023-08-15 18:53:16.475 DEBUG 11860 --- [nio-8081-exec-9] o.apache.coyote.http11.Http11Processor : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@7e5a37d:org.apache.tomcat.util.net.NioChannel@72e2ee37:java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1:8081 remote=/0:0:0:0:0:0:0:1:50696]], Status in: [OPEN_READ], State out: [CLOSED]

 

itemName에서부터 null이 들어가서 오류가 나는 것 같은데 강사님 소스 그대로 붙여넣기 해도 동일한 오류가 발생합니다ㅠㅠ

itemName 파라미터를 왜 못 가져올까요,,

springmvc

답변 2

1

차노쓰님의 프로필 이미지
차노쓰
질문자

아,,, 지난 강의때 이 옵션 false 처리한걸 안 바꿨네요..ㅎㅎ

true로 바꾸니 작동합니당

spring.servlet.multipart.enabled=false

0

y2gcoder님의 프로필 이미지
y2gcoder

안녕하세요. 차노쓰님, 공식 서포터즈 y2gcoder입니다.

스스로 잘 해결하셨습니다 :) 

강의 수강 중 강의 관련 궁금한 사항은 언제든 질문 남겨주세요^^

차노쓰님의 프로필 이미지
차노쓰

작성한 질문수

전체 Q&A
질문하기