maven-compiler-plugin 指定jdk的版本和编码

为了让maven的jdk编译版本一致, 使用maven-compiler-plugin插件来协助管理

建议新建maven项目后的第一步就是配置该插件

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

使用encoding参数课解决java文件的编码问题

<plugins>
          <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-compiler-plugin</artifactId>
              <executions>
                  <execution>
                      <id>default-compile</id>
                      <phase>compile</phase>
                      <goals>
                          <goal>compile</goal>
                      </goals>
                  </execution>
              </executions>
              <configuration>
                  <encoding>UTF-8</encoding>
              </configuration>
          </plugin>
</plugins>  

合起来就是

<plugins>
         <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
                <encoding>UTF8</encoding>
            </configuration>
         </plugin>
    </plu

默认jdk版本不匹配出现的异常信息为

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.0.2:compile (default-compile) on project springJMS: Compilation failure: Compilation failure:
[ERROR] /home/frank/programcode/SpringJMSSample/src/main/java/huangbowen/net/jms/MessageSender.java:[6,1] error: annotations are not supported in -source 1.3
[ERROR]
[ERROR] (use -source 5 or higher to enable annotations)
[ERROR] /home/frank/programcode/SpringJMSSample/src/main/java/net/EmbedBrokerApp.java:[5,7] error: static import declarations are not supported in -source 1.3
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException  

jdk1.8 的配置:

      <!-- the Maven compiler plugin will compile Java source files -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.6.</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <version>3.0.</version>
        <configuration>
          <encoding>UTF-</encoding>
        </configuration>
      </plugin>

scala 2.11.12 的配置

      <!-- the Maven Scala plugin will compile Scala source files -->
      <plugin>
        <groupId>net.alchim31.maven</groupId>
        <artifactId>scala-maven-plugin</artifactId>
        <version>3.2.</version>
        <executions>
          <execution>
            <goals>
              <goal>compile</goal>
              <goal>testCompile</goal>
            </goals>
          </execution>
        </executions>
      </plugin>