springboot項目接入sap與部署到docker遇到的問題有哪些

本篇文章為大家展示了springboot項目接入sap與部署到docker遇到的問題有哪些，內容簡明扼要并且容易理解，絕對能使你眼前一亮，通過這篇文章的詳細介紹希望你能有所收獲。

前言

主要記錄在協助部署接入sap遇到的問題，且只記錄解決問題的答案，不說明原理。

問題實錄

1、問題一：Illegal JCo archive "sapjco-1.0.jar". It is not allowed to rename or repackage the original archive "sapjco3.jar"

解決方案一：手動項目中將sapjco-1.0.jar重名為sapjco3.jar

不過我們沒采用這種方案

解決方案二：指定maven的scope為system，形如下

 <dependency>
            <groupId>com.sap</groupId>
            <artifactId>sapjco</artifactId>
            <version>${sap.version}</version>
            <scope>system</scope>
            <systemPath>${project.basedir}/lib/sapjco3.jar</systemPath>
        </dependency>

然后指定resources，形如下

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring-boot.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                    <compilerArguments>
                        <extdirs>${project.basedir}/lib</extdirs>
                    </compilerArguments>
                </configuration>
            </plugin>

        </plugins>

        <resources>
            <resource>
                <directory>${project.basedir}/lib</directory>
                <targetPath>BOOT-INF/lib/</targetPath>
                <includes>
                    <include>**/*.jar</include>
                </includes>
            </resource>
            <resource>
                <directory>${project.basedir}/lib</directory>
                <targetPath>BOOT-INF</targetPath>
                <includes>
                    <include>**/*.so</include>
                    <include>**/*.dll</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <!--<targetPath>BOOT-INF/classes/</targetPath>-->
                <includes>
                    <include>**/*.yml</include>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
    </build>

這個的作用是將sapjco3.jar打進BOOT-INF/lib/

問題二：java.lang.UnsatisfiedLinkError: no sapjco3 in java.library.path

因為項目是部署到docker里面去，因此本文只寫基于docker的解決方案

解決方案如下：

在dockerFile里面指定LD_LIBRARY_PATH環境變量，形如下

FROM adoptopenjdk/openjdk8
VOLUME /tmp
#ENV JAVA_OPTS="-Dcom.sun.management.jmxremote.port=39083 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"
ENV JAVA_OPTS=""
ENV LD_LIBRARY_PATH /usr/local/lib:$LD_LIBRARY_PATH
COPY localtime /etc/localtime
RUN echo "Asia/Shanghai" > /etc/timezone
COPY hello-biz/target/hello-biz-*.jar app.jar
COPY hello-biz/lib/libsapjco3.so /usr/local/lib/libsapjco3.so
ENTRYPOINT [ "sh", "-c", "java $JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar /app.jar" ]

上述內容就是springboot項目接入sap與部署到docker遇到的問題有哪些，你們學到知識或技能了嗎？如果還想學到更多技能或者豐富自己的知識儲備，歡迎關注億速云行業資訊頻道。