./mvnw clean install
当我第一次运行install命令时,它遇到以下问题。
[INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.749s [INFO] Finished at: Fri Jun 21 02:14:32 IST 2013 [INFO] Final Memory: 4M/15M [INFO] ------------------------------------------------------------------------ **[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project spring-social-twitter4j: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile failed: A required class was missing while executing org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile: org/codehaus/plexus/compiler/CompilerException** [ERROR] ----------------------------------------------------- [ERROR] realm = plugin>org.apache.maven.plugins:maven-compiler-plugin:2.3.2 [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy [ERROR] urls[0] = file:/C:/Users/SS%20Computer/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/2.3.2/maven-compiler-plugin-2.3.2.jar [ERROR] urls[1] = file:/C:/Users/SS%20Computer/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar [ERROR] Number of foreign imports: 1 [ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]] [ERROR] [ERROR] -----------------------------------------------------: org.codehaus.plexus.compiler.CompilerException [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/PluginContainerException
然后,我陷入另一个问题
[ERROR] Source option 1.5 is no longer supported. Use 1.6 or later. [ERROR] Target option 1.5 is no longer supported. Use 1.6 or later.
我在OS X上。mvn -v显示:
mvn -v
Maven home: /Users/matthuntington/Desktop/apache-maven-3.5.0 Java version: 9, vendor: Oracle Corporation Java home: /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Home Default locale: en_US, platform encoding: UTF-8 OS name: "mac os x", version: "10.12.6", arch: "x86_64", family: "mac"
这是我的pom文件
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.packtpub.restapp</groupId> <artifactId>ticket-management</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>ticket-management</name> <description>Demo project for Spring Boot</description> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>5.0.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> <version>1.5.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <version>1.5.7.RELEASE</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.2</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>5.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.0.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <version>1.5.7.RELEASE</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
您可以通过将以下属性添加到pom.xml文件中来指定Maven源/目标版本
<properties> <maven.compiler.source>1.6</maven.compiler.source> <maven.compiler.target>1.6</maven.compiler.target> </properties>