在服务器上部署应用程序时出现问题( java版本不匹配)

Question

我在我的电脑上安装了java 8，在服务器上安装了java 1.6.0_32。所以在我的pom文件中，我使用了

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

另外，在我的项目设置中，我可以看到我在每个模块和整个项目中都使用了java 6。但是，当我尝试在服务器上部署应用程序时，我得到了错误

Unsupported major.minor version 52.0

所以看起来maven编译器忽略了我的1.6配置...我不知道我应该多做些什么。我用的是intelij终极版，顺便说一句。我在pom文件中的依赖项是：

<dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-core</artifactId>
            <version>2.3.15</version>
        </dependency>


        <!-- https://mvnrepository.com/artifact/org.apache.struts/struts2-tiles-plugin -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-tiles-plugin</artifactId>
            <version>2.3.15</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.struts/struts2-jasperreports-plugin -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-jasperreports-plugin</artifactId>
            <version>2.3.15</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.jasypt/jasypt -->
        <dependency>
            <groupId>org.jasypt</groupId>
            <artifactId>jasypt</artifactId>
            <version>1.9.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/net.sf.jasperreports/jasperreports -->
        <dependency>
            <groupId>net.sf.jasperreports</groupId>
            <artifactId>jasperreports</artifactId>
            <version>6.2.0</version>
        </dependency>

        <dependency>
            <groupId>net.sf.jasperreports</groupId>
            <artifactId>jasperreports-fonts</artifactId>
            <version>6.8.0</version>
        </dependency>

        <dependency>
            <groupId>ar.com.fdvs</groupId>
            <artifactId>DynamicJasper-core-fonts</artifactId>
            <version>2.0</version>
        </dependency>

        <dependency>
            <groupId>xml-apis</groupId>
            <artifactId>xml-apis</artifactId>
            <version>1.4.01</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/ar.com.fdvs/DynamicJasper -->
        <dependency>
            <groupId>ar.com.fdvs</groupId>
            <artifactId>DynamicJasper</artifactId>
            <version>5.0.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/net.sourceforge.dynamicreports/dynamicreports-core -->
        <dependency>
            <groupId>net.sourceforge.dynamicreports</groupId>
            <artifactId>dynamicreports-core</artifactId>
            <version>3.1.5</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/net.sourceforge.jexcelapi/jxl -->
        <dependency>
            <groupId>net.sourceforge.jexcelapi</groupId>
            <artifactId>jxl</artifactId>
            <version>2.6.12</version>
        </dependency>
        <dependency>
            <groupId>dans</groupId>
            <artifactId>dans-lib</artifactId>
            <version>1.0.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/javax.mail/mail -->
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.7</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.13</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.14.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.14.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.faces/javax.faces-api -->
        <dependency>
            <groupId>javax.faces</groupId>
            <artifactId>javax.faces-api</artifactId>
            <version>2.3</version>
            <scope>provided</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.0.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils -->
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.8.0</version>
        </dependency>


        <!-- https://mvnrepository.com/artifact/commons-validator/commons-validator -->
        <dependency>
            <groupId>commons-validator</groupId>
            <artifactId>commons-validator</artifactId>
            <version>1.3.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker -->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.19</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf -->
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itextpdf</artifactId>
            <version>5.3.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.opensymphony/xwork -->
        <dependency>
            <groupId>com.opensymphony</groupId>
            <artifactId>xwork</artifactId>
            <version>2.1.3</version>
        </dependency>

Answer 1

这可能是由于您的POM中的一些<dependency>。

Java 6非常旧，所以现在的大多数依赖项都需要较新版本的Java。