(异常-Junit) 程序包org.junit不存在

小咪咪 2023-02-23 05:21 99阅读 0赞

### 前言 ###

Junit打包.

程序包org.junit不存在

[ERROR] COMPILATION ERROR :
    [INFO] -------------------------------------------------------------
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[7,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[8,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[9,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[9,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[12,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[32,10] 找不到符号
      符号:   类 BeforeClass
      位置: 类 com.yanxml.bigdata.java.spark.demos.clickhistory.ClickHistoryTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[40,10] 找不到符号
      符号:   类 Test
      位置: 类 com.yanxml.bigdata.java.spark.demos.clickhistory.ClickHistoryTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[70,10] 找不到符号
      符号:   类 AfterClass
      位置: 类 com.yanxml.bigdata.java.spark.demos.clickhistory.ClickHistoryTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[31,10] 找不到符号
      符号:   类 BeforeClass
      位置: 类 com.yanxml.bigdata.java.spark.demos.exam.ExameDataTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[218,10] 找不到符号
      符号:   类 Test
      位置: 类 com.yanxml.bigdata.java.spark.demos.exam.ExameDataTrainDemo
    [INFO] 10 errors
    [INFO] -------------------------------------------------------------
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD FAILURE
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 3.409 s
    [INFO] Finished at: 2020-07-05T17:54:18+08:00
    [INFO] Final Memory: 39M/289M
    [INFO] ------------------------------------------------------------------------
    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project spark: Compilation failure: Compilation failure:
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[7,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[8,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[9,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[9,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[12,17] 程序包org.junit不存在
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[32,10] 找不到符号
    [ERROR] 符号:   类 BeforeClass
    [ERROR] 位置: 类 com.yanxml.bigdata.java.spark.demos.clickhistory.ClickHistoryTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[40,10] 找不到符号
    [ERROR] 符号:   类 Test
    [ERROR] 位置: 类 com.yanxml.bigdata.java.spark.demos.clickhistory.ClickHistoryTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/clickhistory/ClickHistoryTrainDemo.java:[70,10] 找不到符号
    [ERROR] 符号:   类 AfterClass
    [ERROR] 位置: 类 com.yanxml.bigdata.java.spark.demos.clickhistory.ClickHistoryTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[31,10] 找不到符号
    [ERROR] 符号:   类 BeforeClass
    [ERROR] 位置: 类 com.yanxml.bigdata.java.spark.demos.exam.ExameDataTrainDemo
    [ERROR] /Users/sean/Documents/Gitrep/bigdata/spark/src/main/java/com/yanxml/bigdata/java/spark/demos/exam/ExameDataTrainDemo.java:[218,10] 找不到符号
    [ERROR] 符号:   类 Test
    [ERROR] 位置: 类 com.yanxml.bigdata.java.spark.demos.exam.ExameDataTrainDemo
    [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

--------------------

### 原因&解决措施 ###

*  原因  
    `Maven`内引用.

<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>4.12</version>
    			<scope>test</scope> 
    		</dependency>

其本来是`test`部分进行编译的. 写在`src/java/main`部分, 编译时没法获取引用.

*  解决措施

去除`scope`标签.

--------------------

### Others ###

后来看到一篇博客. 突然发现, `<scope>`即是`maven的声明周期有关`. 其中, `<scope>test</scope>`, 即在`maven`的test周期内生效.

--------------------

### Reference ###

\[1\]. [maven 程序包org.junit不存在][maven _org.junit]

\[2\]. [Maven打包 错误: 程序包org.junit不存在][Maven_ _ _org.junit]

[maven _org.junit]: https://blog.csdn.net/ethan_fu/article/details/49450083
[Maven_ _ _org.junit]: https://blog.csdn.net/testcs_dn/article/details/70184216?fps=1&locationNum=5