在修改国家项目中间件 edt 时，用 Maven 编译 necc-edt-api 模块时，总是编译不过，并提示了“文件名、目录名或卷标语法不正确”的错误。

错误提示

观察控制台，输出如下：

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 32.730 s
[INFO] Finished at: 2016-06-26T18:59:50+08:00
[INFO] Final Memory: 42M/336M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:2.4:jar
 (default-jar) on project necc-edt-api: Error assembling JAR: Problem creating j
ar: D:\workspaceZYH\necc_20150817\edt\api\target\necc-edt-api-2016-06-26T10:59:1
8Z.jar (文件名、目录名或卷标语法不正确。) (and the archive is probably corrupt b
ut I could not delete it) -> [Help 1]
[ERROR]

中文提示很友好且明确“文件名、目录名或卷标语法不正确”， 再观察生成的jar 名称，居然是 “necc-edt-api-2016-06-26T10:59:1 8Z.jar”，显然“：”（冒号） 是不能作为文件名称的。

解决

查看该模块 pom.xml 中文件名生成的策略：

 <build>
 ....
        <finalName>${project.artifactId}-${maven.build.timestamp}</finalName>
 ....
 </build>

命名使用了 Maven 内置的属性 ${maven.build.timestamp} ， 该属性是指项目构件开始时间。显然时间中时分秒是带有了“：”（冒号）的。

解决方式：自然是去掉时间中的“：”

对上述时间进行格式化，使用了另外一个 Maven 内置的属性来格式话时间，如下：

pom.xml 添加如下：

<properties>
...
    <maven.build.timestamp.format>yyyy-MM-dd</maven.build.timestamp.format>
...
</properties>

再次构建,成功

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] NECC Parent ........................................ SUCCESS [  0.885 s]
[INFO] NECC Database Table Access Component. .............. SUCCESS [  8.129 s]
[INFO] NECC Bussiness Model Component. .................... SUCCESS [  2.722 s]
[INFO] necc-edt ........................................... SUCCESS [  0.043 s]
[INFO] necc-edt-protocol .................................. SUCCESS [  1.122 s]
[INFO] NECC Core Service JAVA API Component. .............. SUCCESS [  1.605 s]
[INFO] NECC Common Component. ............................. SUCCESS [  1.600 s]
[INFO] NECC Task Runner Component. ........................ SUCCESS [  0.410 s]
[INFO] NECC Core Service JAVA IMPL Component. ............. SUCCESS [  4.209 s]
[INFO] NECC Service Facade Component. ..................... SUCCESS [  1.782 s]
[INFO] NECC Core EDT Kernel Component. .................... SUCCESS [  3.537 s]
[INFO] necc-edt-api ....................................... SUCCESS [  8.250 s]
[INFO] necc-edt-client .................................... SUCCESS [  6.947 s]
[INFO] NECC Core EDT register Component. .................. SUCCESS [  4.870 s]
[INFO] necc-edt-pump ...................................... SUCCESS [ 15.917 s]
[INFO] NECC Core EDT sync Component. ...................... SUCCESS [  3.257 s]
[INFO] NECC Task Repository Component. .................... SUCCESS [  0.456 s]
[INFO] NECC Web Government Component. ..................... SUCCESS [ 44.963 s]
[INFO] NECC Web Enterprise Component. ..................... SUCCESS [ 19.090 s]
[INFO] NECC Task Administrator Component. ................. SUCCESS [  2.860 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:13 min
[INFO] Finished at: 2016-06-26T19:12:38+08:00
[INFO] Final Memory: 60M/717M
[INFO] ------------------------------------------------------------------------

生成文件格式为：necc-edt-api-2016-06-26.jar

相关知识

Maven共有6类属性,内置属性 Maven 预定义,用户可以直接使用:

  • ${basedir}表示项目根目录,即包含 pom.xml 文件的目录;
  • ${version}表示项目版本;
  • ${project.basedir}同${basedir};
  • ${project.baseUri}表示项目文件地址;
  • ${maven.build.timestamp}表示项目构件开始时间;
  • ${maven.build.timestamp.format}表示属性${maven.build.timestamp}的展示格式,默认值为 yyyyMMdd-HHmm,可自定义其格式,其类型可参考