如何使用Maven 3配置文件在IntelliJ中切换字节码目标级别

Question

I am using maven profiles to switch between two "setups" in Intelli J. How can I switch the bytecode target level? That is: I want to change the following setting in compiler.xml

<bytecodeTargetLevel>
  <module name="finmath-lib" target="1.6" />
</bytecodeTargetLevel>

Note: I tried to perform this via the following part in the respective Maven 3 profile

<profile>
    <id>java-8</id>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</profile>

but this does not work!

Note: The pom.xml etc. belongs to the finmath lib project, and if you are interested, it can be found at www.finmath.net

Answer 1

I am using IntelliJ IDEA 14.1.3 and it works with following config ...

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.3</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
    </configuration>
</plugin>

Hope this is helpful. Thanks!

Answer 2

The problem is that you want to change it to 1.8.

I've tried to switch IntelliJ's compiler version between 1.7 and 1.6 or 1.5 using Maven profile successfully .

However when you want to change it to 1.8, the config will be ignored.

I don't know whether this is maven's problem or Intellj's. It seems that the JDK 1.8 is not well supported now, which is understandable.

Answer 3

您可以在IntelliJ中打开Maven项目工具窗口，然后从列表中选择要使用的配置文件。

Answer 4

在IntelliJ 13， File > Project Structure ，将Project language level设置为8.0。