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Eclipse中使用Ant來(lái)運(yùn)行Junit的錯(cuò)誤及解決方法

今天在試著在eclipse中使用Ant來(lái)運(yùn)行JUnit進(jìn)行單元測(cè)試時(shí)彈出如下錯(cuò)誤提示,但在外部窗口執(zhí)行Ant時(shí)不會(huì)出現(xiàn)

BUILD FAILED
D:\EclipseWorkSpace\message\build.xml:11: Could not create task or type of type: junit.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes; the usual
solutions are to read the manual pages then download and
install needed JAR files, or fix the build file:
- You have misspelt 'junit'.
   Fix: check your spelling.
- The task needs an external JAR file to execute
     and this is not found at the right place in the classpath.
   Fix: check the documentation for dependencies.
   Fix: declare the task.
- The task is an Ant optional task and the JAR file and/or libraries
     implementing the functionality were not found at the time you
     yourself built your installation of Ant from the Ant sources.
   Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the
     task and make sure it contains more than merely a META-INF/MANIFEST.MF.
     If all it contains is the manifest, then rebuild Ant with the needed
     libraries present in ${ant.home}/lib/optional/ , or alternatively,
     download a pre-built release version from apache.org
- The build file was written for a later version of Ant
   Fix: upgrade to at least the latest release version of Ant
- The task is not an Ant core or optional task
     and needs to be declared using <taskdef>.
- You are attempting to use a task defined using
    <presetdef> or <macrodef> but have spelt wrong or not
   defined it at the point of use

Remember that for JAR files to be visible to Ant tasks implemented
in ANT_HOME/lib, the files must be in the same directory or on the
classpath

Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.

按著錯(cuò)誤提示將JUnit.jar放在ANT_HOME/lib中還是同樣出現(xiàn)上述錯(cuò)誤提示

這是因?yàn)?lt;junit>任務(wù)在ant中是一個(gè)optinal task,非core task,需要junit.jar支持

解決方法:在window --> preferences --> Ant --> Runtime --> Classpath中選擇Global Entries,然后添加JUnit.jar文件即可,以便eclipse在運(yùn)行ant任務(wù)時(shí)會(huì)加載junit.jar,這樣就可以解決上述問(wèn)題現(xiàn)象,其實(shí)這里也可以將JUnit.jar文件放在Ant Home Entries,但這樣有可能造成與Ant本身包的混淆.


ok

posted on 2007-07-19 22:41 紙飛機(jī) 閱讀(2051) 評(píng)論(3) 編輯收藏

評(píng)論

# re: Eclipse中使用Ant來(lái)運(yùn)行Junit的錯(cuò)誤及解決方法 2008-07-22 15:15 yhmymemory

剛才試了一下很好. 回復(fù) 更多評(píng)論

# re: Eclipse中使用Ant來(lái)運(yùn)行Junit的錯(cuò)誤及解決方法[未登錄](méi) 2008-12-05 11:03 user

謝謝回復(fù) 更多評(píng)論

# re: Eclipse中使用Ant來(lái)運(yùn)行Junit的錯(cuò)誤及解決方法[未登錄](méi) 2009-07-24 11:25 ling

很不錯(cuò)。最近正為這個(gè)郁悶，現(xiàn)在解決了回復(fù) 更多評(píng)論

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