需要有关 Maven 示例的帮助

发布于 2024-08-20 03:51:08 字数 5379 浏览 4 评论 0原文

我正在尝试尽快学习 Maven,因为它适合我当前的工作场所。我发现很棒这本书几乎解释了关于 Maven 的一切。

我正在使用 eclipse 进行 java 开发,并且安装了 maven eclipse 插件,在我上面提到的书中有一个示例(可能相关也可能不相关)4.2.1。雅虎!天气 RSS

此示例的目的是通过连接到 yahoo 天气 RSS 服务器并从中获取适当的数据来说明 Maven 如何以稍微复杂的方式工作。

我挣扎的是下面这一行,我设法从cmd执行它(我使用的是win-7)

mvn exec:java -Dexec.mainClass=org.sonatype.mavenbook.weather.Main

当我使用文本编辑器和cmd时,首先编辑文件,然后使用maven执行命令,我所做的一切都与本书一切运行完美,但我们使用 Eclipse,所以我想学习如何使用 Eclipse 做同样的事情。

我如何从日食中做到这一点?

这是我尝试运行的图像:

alt text http://postavi.com/hosted/bc0de2440ba2b5017a92672c721dcca1 .gif

所以我进入下一个屏幕:

alt text http://postavi.com/ Hosted/5c79320f64e850879d49823c4a6e2ecb.gif

我运行它并收到此错误:

Version: 1.1.1
Mojo: exec
brought in via: Direct invocation

While building project:
Group-Id: org.sonatype.mavenbook.custom
Artifact-Id: weather
Version: 0.0.1-SNAPSHOT
From file: C:\OPR-CS\weather\pom.xml


Missing parameters include:
executable



[INFO] ------------------------------------------------------------------------
[INFO] For more information, run with the -e flag
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILED
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Tue Feb 02 14:47:04 CET 2010
[INFO] Final Memory: 1M/7M
[INFO] ------------------------------------------------------------------------

我假设我没有传递适当的参数,如上面的错误中所述。

-Dexec.mainClass=org.sonatype.mavenbook.weather.Main 

上面这一行。因为我不知道怎么做。这是 pom.xml 文件,与书中相同,稍作调整:

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.sonatype.mavenbook.custom</groupId>
    <artifactId>weather</artifactId>
    <packaging>jar</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>weather</name>
    <url>http://maven.apache.org</url>

    <licenses>
        <license>
            <name>Apache 2</name>
            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
            <distribution>repo</distribution>
            <comments>A business-friendly OSS license</comments>
        </license>
    </licenses>

    <organization>
        <name>ORIGIGI</name>
        <url>http://www.devs.com</url>
    </organization>

    <developers>
        <developer>
            <id>emco</id>
            <name>Myself and I</name>
            <email>[email protected]</email>
            <url>http://www.devs.com</url>
            <organization>ORIGIGI</organization>
            <organizationUrl>http://www.devs.com</organizationUrl>
            <roles>
                <role>developer</role>
            </roles>
            <timezone>-6</timezone>
        </developer>

    </developers>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.14</version>
        </dependency>
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>jaxen</groupId>
            <artifactId>jaxen</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>velocity</groupId>
            <artifactId>velocity</artifactId>
            <version>1.5</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.5</source>
                    <target>1.5</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

有人可以帮助我吗?谢谢

I'm trying to learn maven ASAP as its required for my current work place. I found this great book which pretty much explains everything about maven.

I'm using eclipse for java development and I installed maven eclipse plugin, in the book I mentioned above there is example(which may or may not be relevant) 4.2.1. Yahoo! Weather RSS.

Purpose of this example is to ilustrate how maven works in a slightly more complex way, by connecting to the yahoo weather rss server and getting the appropriate data from it.

With what I struggle is this line below,I manage to execute it from cmd(I'm using win-7)

mvn exec:java -Dexec.mainClass=org.sonatype.mavenbook.weather.Main

When I use text editor and cmd, first to edit files and second to perform commands with maven I do everything as in the book everything runs perfectly, but we work with eclipse so I'd like to learn how to do the same with eclipse.

How do I do this from eclipse?

Here is the image of what I try to run :

alt text http://postavi.com/hosted/bc0de2440ba2b5017a92672c721dcca1.gif

So I get to the next screen :

alt text http://postavi.com/hosted/5c79320f64e850879d49823c4a6e2ecb.gif

I run it and I get this error :

Version: 1.1.1
Mojo: exec
brought in via: Direct invocation

While building project:
Group-Id: org.sonatype.mavenbook.custom
Artifact-Id: weather
Version: 0.0.1-SNAPSHOT
From file: C:\OPR-CS\weather\pom.xml


Missing parameters include:
executable



[INFO] ------------------------------------------------------------------------
[INFO] For more information, run with the -e flag
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILED
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Tue Feb 02 14:47:04 CET 2010
[INFO] Final Memory: 1M/7M
[INFO] ------------------------------------------------------------------------

I assume I didn't pass the appropriate parameteres as it says in error above.

-Dexec.mainClass=org.sonatype.mavenbook.weather.Main 

This line above. Because I don't know how. Here is the pom.xml file, same as in book slightly adjusted here it is:

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.sonatype.mavenbook.custom</groupId>
    <artifactId>weather</artifactId>
    <packaging>jar</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>weather</name>
    <url>http://maven.apache.org</url>

    <licenses>
        <license>
            <name>Apache 2</name>
            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
            <distribution>repo</distribution>
            <comments>A business-friendly OSS license</comments>
        </license>
    </licenses>

    <organization>
        <name>ORIGIGI</name>
        <url>http://www.devs.com</url>
    </organization>

    <developers>
        <developer>
            <id>emco</id>
            <name>Myself and I</name>
            <email>[email protected]</email>
            <url>http://www.devs.com</url>
            <organization>ORIGIGI</organization>
            <organizationUrl>http://www.devs.com</organizationUrl>
            <roles>
                <role>developer</role>
            </roles>
            <timezone>-6</timezone>
        </developer>

    </developers>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.14</version>
        </dependency>
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>jaxen</groupId>
            <artifactId>jaxen</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>velocity</groupId>
            <artifactId>velocity</artifactId>
            <version>1.5</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.5</source>
                    <target>1.5</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Can anyone help me? Thank you

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盗梦空间 2024-08-27 03:51:08

您正在调用 exec:exec 而不是 exec:java

目标部分应为 exec:java,并位于 JRE 选项卡和 -Dexec.mainClass=... 参数中。

You're invoking exec:exec instead of exec:java.

The goals section should be exec:java, and in the JRE tab and the -Dexec.mainClass=... argument.

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