在java中构建maven程序集8

我在我的Project中更改了使用的java版本。现在我正在使用lambda表达式。在java中构建maven程序集8

如果我编译ith IDE（IntelliJ），它运行良好。但是当我用maven：assembly编译时，它失败了。

这里的输出：

[ERROR] ...../commands/parser/CommandParser.java:[141,73] lambda expressions are not supported in -source 1.5 
[ERROR] (use -source 8 or higher to enable lambda expressions)

和我的pom.xml：

<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.lefrantguillaume</groupId> 
<artifactId>ServerTinyTank</artifactId> 
<packaging>jar</packaging> 
<version>1.0-SNAPSHOT</version> 
<url>http://maven.apache.org</url> 

<dependencies> 
    <dependency> 
     <groupId>com.esotericsoftware</groupId> 
     <artifactId>kryonet</artifactId> 
     <version>2.22.0-RC1</version> 
    </dependency> 
    <dependency> 
     <groupId>com.sun.jersey</groupId> 
     <artifactId>jersey-server</artifactId> 
     <version>1.9</version> 
    </dependency> 

    <dependency> 
     <groupId>com.sun.jersey</groupId> 
     <artifactId>jersey-client</artifactId> 
     <version>1.9</version> 
    </dependency> 
    <dependency> 
     <groupId>com.sun.jersey</groupId> 
     <artifactId>jersey-json</artifactId> 
     <version>1.9</version> 
    </dependency> 

    <dependency> 
     <groupId>com.googlecode.json-simple</groupId> 
     <artifactId>json-simple</artifactId> 
     <version>1.1</version> 
    </dependency> 

    <dependency> 
     <groupId>args4j</groupId> 
     <artifactId>args4j</artifactId> 
     <version>2.32</version> 
    </dependency> 


</dependencies> 

<build> 
    <plugins> 
     <plugin> 
      <artifactId>maven-assembly-plugin</artifactId> 
      <configuration> 
       <source>${java.version}</source> 
       <target>${java.version}</target> 
       <descriptorRefs> 
        <descriptorRef>jar-with-dependencies</descriptorRef> 
       </descriptorRefs> 
       <archive> 
        <manifest> 
         <mainClass>com.lefrantguillaume.Main</mainClass> 
        </manifest> 
       </archive> 
      </configuration> 
     </plugin> 
    </plugins> 
</build>

来源

2015-05-09 Sw0ut

据我所见，你从未设置过${java.version}。而且，你不会在编译器目标中设置该变量。

这应该是什么样子：

<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.lefrantguillaume</groupId> 
    <artifactId>ServerTinyTank</artifactId> 
    <packaging>jar</packaging> 
    <version>1.0-SNAPSHOT</version> 
    <url>http://maven.apache.org</url> 

    <properties> 
     <java.version>1.8</java.version> 
    </properties> 

    <dependencies> 
     <dependency> 
      <groupId>com.esotericsoftware</groupId> 
      <artifactId>kryonet</artifactId> 
      <version>2.22.0-RC1</version> 
     </dependency> 
     <dependency> 
      <groupId>com.sun.jersey</groupId> 
      <artifactId>jersey-server</artifactId> 
      <version>1.9</version> 
     </dependency> 
     <dependency> 
      <groupId>com.sun.jersey</groupId> 
      <artifactId>jersey-client</artifactId> 
      <version>1.9</version> 
     </dependency> 
     <dependency> 
      <groupId>com.sun.jersey</groupId> 
      <artifactId>jersey-json</artifactId> 
      <version>1.9</version> 
     </dependency> 
     <dependency> 
      <groupId>com.googlecode.json-simple</groupId> 
      <artifactId>json-simple</artifactId> 
      <version>1.1</version> 
     </dependency> 
     <dependency> 
      <groupId>args4j</groupId> 
      <artifactId>args4j</artifactId> 
      <version>2.32</version> 
     </dependency> 
    </dependencies> 

    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>3.3</version> 
       <configuration> 
        <source>${java.version}</source> 
        <target>${java.version}</target> 
       </configuration> 
      </plugin> 
      <plugin> 
       <artifactId>maven-assembly-plugin</artifactId> 
       <configuration> 
        <source>${java.version}</source> 
        <target>${java.version}</target> 
        <descriptorRefs> 
         <descriptorRef>jar-with-dependencies</descriptorRef> 
        </descriptorRefs> 
        <archive> 
         <manifest> 
          <mainClass>com.lefrantguillaume.Main</mainClass> 
         </manifest> 
        </archive> 
       </configuration> 
      </plugin> 
     </plugins> 
    </build> 
</project>

来源

2015-05-09 08:17:28

任职：d！没有注意到编译器插件。我也错过了。谢谢！ – Sw0ut

这应该做的伎俩

<source>1.8</source> 
<target>1.8</target>

你在哪里定义你的属性？

来源

2015-05-09 08:15:09

  <plugin> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <configuration> 
        <source>1.8</source> 
        <target>1.8</target> 
       </configuration> 
      </plugin>

来源

2015-11-24 10:33:54

在java中构建maven程序集8

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