从Maven Quarkus项目的资源文件夹中读取txt文件，来自Docker容器。

huangapple
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标题翻译

Read txt file from resources folder on maven Quarkus project From Docker Container

问题

public  void buffer() throws IOException {
    try (InputStream inputStream = getClass().getResourceAsStream("/151279.txt");
         BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
        String contents = reader.lines()
                .collect(Collectors.joining(System.lineSeparator()));
    }
}

./mvnw package
java -jar target/file-parser-1.0-SNAPSHOT-runner.jar

./mvnw package -Pnative -Dquarkus.native.container-build=true
java -jar target/file-parser-1.0-SNAPSHOT-native-image-source-jar/file-parser-1.0-SNAPSHOT-runner.jar

docker build -f src/main/docker/Dockerfile.native -t quarkus/file-parser
docker run -i --rm -p 8080:8080 quarkus/file-parser

docker build -f src/main/docker/Dockerfile.jvm -t quarkus/file-parser-jvm
docker run -i --rm -p 8080:8080 quarkus/file-parser-jvm

Dockerfile.Native:

####
# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode
#
# Before building the docker image run:
#
# mvn package -Pnative -Dquarkus.native.container-build=true
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.native -t quarkus/file-parser .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/file-parser
#
###
FROM registry.access.redhat.com/ubi8/ubi-minimal:8.1
WORKDIR /work/
COPY target/*-runner /work/application

# set up permissions for user `1001`
RUN chmod 775 /work /work/application \
  && chown -R 1001 /work \
  && chmod -R "g+rwX" /work \
  && chown -R 1001:root /work

EXPOSE 8080
USER 1001

CMD ["./application", "-Dquarkus.http.host=0.0.0.0"]

DockerFile.jvm:

####
# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
#
# Before building the docker image run:
#
# mvn package
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.jvm -t quarkus/file-parser-jvm .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/file-parser-jvm
#
###
FROM registry.access.redhat.com/ubi8/ubi-minimal:8.1

ARG JAVA_PACKAGE=java-1.8.0-openjdk-headless
ARG RUN_JAVA_VERSION=1.3.5

ENV LANG='en_US.UTF-8' LANGUAGE='en_US:en'

# Install java and the run-java script
# Also set up permissions for user `1001`
RUN microdnf install openssl curl ca-certificates ${JAVA_PACKAGE} \
    && microdnf update \
    && microdnf clean all \
    && mkdir /deployments \
    && chown 1001 /deployments \
    && chmod "g+rwX" /deployments \
    && chown 1001:root /deployments \
    && curl https://repo1.maven.org/maven2/io/fabric8/run-java-sh/${RUN_JAVA_VERSION}/run-java-sh-${RUN_JAVA_VERSION}-sh.sh -o /deployments/run-java.sh \
    && chown 1001 /deployments/run-java.sh \
    && chmod 540 /deployments/run-java.sh \
    && echo "securerandom.source=file:/dev/urandom" >> /etc/alternatives/jre/lib/security/java.security

# Configure the JAVA_OPTIONS, you can add -XshowSettings:vm to also display the heap size.
ENV JAVA_OPTIONS="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"

COPY target/lib/* /deployments/lib/
COPY target/*-runner.jar /deployments/app.jar

EXPOSE 8080
USER 1001

ENTRYPOINT ["/deployments/run-java.sh"]

Refs:
https://www.baeldung.com/java-classpath-resource-cannot-be-opened


<details>
<summary>英文翻译</summary>

I have one project to parse some info from a large file. 

The project uses maven and java:
[![enter image description here][1]][1]

And the structure bellow:

[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/zELbF.png
  [2]: https://i.stack.imgur.com/tJi5i.png

When I run the application from my IDEA, I can read the file with:


    public  void buffer() throws IOException {
        try (InputStream inputStream = getClass().getResourceAsStream(&quot;/151279.txt&quot;);
             BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
            String contents = reader.lines()
                    .collect(Collectors.joining(System.lineSeparator()));
        }
    }

Then, if I run:

     ./mvnw package 
    java -jar target/file-parser-1.0-SNAPSHOT-runner.jar

Everything goes well.

Even when I generate the GraalNative jar and run the application from the native generate jar  with:

    ./mvnw package -Pnative -Dquarkus.native.container-build=true
    
    java -jar target/file-parser-1.0-SNAPSHOT-native-image-source-jar/file-parser-1.0-SNAPSHOT-runner.jar


it all works Well.

But then, when I run the commands to build and run with docker, is where I got my error:

    docker build -f src/main/docker/Dockerfile.native -t quarkus/file-parser 
    
    docker run -i --rm -p 8080:8080 quarkus/file-parser

    2020-03-16 17:48:04,908 ERROR [io.qua.ver.htt.run.QuarkusErrorHandler] (executor-thread-1) HTTP Request to /init failed, error id: 8471ff6c-f124-4e0f-9d83-afe7f066b3a8-1: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
    	at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:106)
    	at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:372)
    	at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:209)
    	at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496)
    	at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:252)
    	at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:153)
    	at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:363)
    	at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:156)
    	at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:238)
    	at io.quarkus.resteasy.runtime.standalone.RequestDispatcher.service(RequestDispatcher.java:73)
    	at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.dispatch(VertxRequestHandler.java:120)
    	at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.access$000(VertxRequestHandler.java:36)
    	at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler$1.run(VertxRequestHandler.java:85)
    	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
    	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2011)
    	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1535)
    	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1395)
    	at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:29)
    	at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:29)
    	at java.lang.Thread.run(Thread.java:748)
    	at org.jboss.threads.JBossThread.run(JBossThread.java:479)
    	at com.oracle.svm.core.thread.JavaThreads.threadStartRoutine(JavaThreads.java:460)
    	at com.oracle.svm.core.posix.thread.PosixJavaThreads.pthreadStartRoutine(PosixJavaThreads.java:193)
    Caused by: java.lang.NullPointerException
    	at java.io.Reader.&lt;init&gt;(Reader.java:78)
    	at java.io.InputStreamReader.&lt;init&gt;(InputStreamReader.java:72)
    	at com.erickmob.fileparser.service.ParseService.buffer(ParseService.java:74)
    	at com.erickmob.fileparser.service.ParseService_ClientProxy.buffer(ParseService_ClientProxy.zig:98)
    	at com.erickmob.fileparser.resource.ParseResource.hello(ParseResource.java:27)
    	at java.lang.reflect.Method.invoke(Method.java:498)
    	at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:151)
    	at org.jboss.resteasy.core.MethodInjectorImpl.lambda$invoke$3(MethodInjectorImpl.java:122)
    	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:616)
    	at java.util.concurrent.CompletableFuture.uniApplyStage(CompletableFuture.java:628)
    	at java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:1996)
    	at java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:110)
    	at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:122)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:594)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:468)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$2(ResourceMethodInvoker.java:421)
    	at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:363)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:423)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:391)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invoke$1(ResourceMethodInvoker.java:365)
    	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:995)
    	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)
    	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:110)
    	at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:365)
    	at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:477)
    	... 19 more


Does anyone can help me with this?
How can I read a txt file on src/main/resources on a Docker Container?

Dockerfile.Native:


    ####
    # This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode
    #
    # Before building the docker image run:
    #
    # mvn package -Pnative -Dquarkus.native.container-build=true
    #
    # Then, build the image with:
    #
    # docker build -f src/main/docker/Dockerfile.native -t quarkus/file-parser .
    #
    # Then run the container using:
    #
    # docker run -i --rm -p 8080:8080 quarkus/file-parser
    #
    ###
    FROM registry.access.redhat.com/ubi8/ubi-minimal:8.1
    WORKDIR /work/
    COPY target/*-runner /work/application
    
    # set up permissions for user `1001`
    RUN chmod 775 /work /work/application \
      &amp;&amp; chown -R 1001 /work \
      &amp;&amp; chmod -R &quot;g+rwX&quot; /work \
      &amp;&amp; chown -R 1001:root /work
    
    EXPOSE 8080
    USER 1001
    
    CMD [&quot;./application&quot;, &quot;-Dquarkus.http.host=0.0.0.0&quot;]



DockerFile.jvm

    ####
    # This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
    #
    # Before building the docker image run:
    #
    # mvn package
    #
    # Then, build the image with:
    #
    # docker build -f src/main/docker/Dockerfile.jvm -t quarkus/file-parser-jvm .
    #
    # Then run the container using:
    #
    # docker run -i --rm -p 8080:8080 quarkus/file-parser-jvm
    #
    ###
    FROM registry.access.redhat.com/ubi8/ubi-minimal:8.1
    
    ARG JAVA_PACKAGE=java-1.8.0-openjdk-headless
    ARG RUN_JAVA_VERSION=1.3.5
    
    ENV LANG=&#39;en_US.UTF-8&#39; LANGUAGE=&#39;en_US:en&#39;
    
    # Install java and the run-java script
    # Also set up permissions for user `1001`
    RUN microdnf install openssl curl ca-certificates ${JAVA_PACKAGE} \
        &amp;&amp; microdnf update \
        &amp;&amp; microdnf clean all \
        &amp;&amp; mkdir /deployments \
        &amp;&amp; chown 1001 /deployments \
        &amp;&amp; chmod &quot;g+rwX&quot; /deployments \
        &amp;&amp; chown 1001:root /deployments \
        &amp;&amp; curl https://repo1.maven.org/maven2/io/fabric8/run-java-sh/${RUN_JAVA_VERSION}/run-java-sh-${RUN_JAVA_VERSION}-sh.sh -o /deployments/run-java.sh \
        &amp;&amp; chown 1001 /deployments/run-java.sh \
        &amp;&amp; chmod 540 /deployments/run-java.sh \
        &amp;&amp; echo &quot;securerandom.source=file:/dev/urandom&quot; &gt;&gt; /etc/alternatives/jre/lib/security/java.security
    
    # Configure the JAVA_OPTIONS, you can add -XshowSettings:vm to also display the heap size.
    ENV JAVA_OPTIONS=&quot;-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager&quot;
    
    COPY target/lib/* /deployments/lib/
    COPY target/*-runner.jar /deployments/app.jar
    
    EXPOSE 8080
    USER 1001
    
    ENTRYPOINT [ &quot;/deployments/run-java.sh&quot; ]

Refs:
https://www.baeldung.com/java-classpath-resource-cannot-be-opened


</details>


# 答案1
**得分**: 11

你需要确保该资源已包含在本地镜像中（默认情况下不包含）。

添加一个 `src/main/resources/resources-config.json` 文件，内容类似于：

{
"resources": [
{
"pattern": "151279\.txt$"
}
]
}


你还需要设置以下属性：

quarkus.native.additional-build-args =-H:ResourceConfigurationFiles=resources-config.json


详见[此链接][1]以获取更多详情。

[1]: https://quarkus.io/guides/writing-native-applications-tips#including-resources

<details>
<summary>英文翻译</summary>

You need to make sure that the resource is included in the native image (it isn&#39;t by default).

Add a `src/main/resources/resources-config.json` that includes something like:

    {
      &quot;resources&quot;: [
        {
          &quot;pattern&quot;: &quot;151279\\.txt$&quot;
        }
      ]
    }

You will also need to set the following property:



    quarkus.native.additional-build-args =-H:ResourceConfigurationFiles=resources-config.json

See [this][1] for more details.


  [1]: https://quarkus.io/guides/writing-native-applications-tips#including-resources



</details>

huangapple
  • 本文由 发表于 2020年3月17日 02:02:30
  • 转载请务必保留本文链接：https://java.coder-hub.com/60711034.html
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