Java 包 org.apache.commons.io 不存在错误
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package org.apache.commons.io does not exist error
提问by samnaction
I am compiling a .java file using ant compiler. I am getting the following errror "package org.apache.commons.io does not exist error"
我正在使用 ant 编译器编译 .java 文件。我收到以下错误“包 org.apache.commons.io 不存在错误”
I downloaded the apache Commons IO binaries and pasted the .jar files in "C:\Program Files\Java\jdk1.7.0_51\lib\missioncontrol\plugins "
我下载了 apache Commons IO 二进制文件并将 .jar 文件粘贴到“C:\Program Files\Java\jdk1.7.0_51\lib\missioncontrol\plugins”
Any help. Do I need to modify the classpath of my build xml file?
任何帮助。我需要修改我的构建 xml 文件的类路径吗？
<target name="compile" description="Compile source code">
<mkdir dir="${build.dir}/classes"/>
<javac includeantruntime="false"
srcdir="src"
destdir="${build.dir}/classes"
classpathref="classpath"
encoding="UTF8"
debug="on"
deprecation="on">
<include name="**/*.java"/>
<exclude name="**/NutchExample.java"/>
</javac>
<copy todir="${build.dir}/classes/lia/tools">
<fileset dir="src/lia/tools" excludes="**/*.java"/>
</copy>
</target>
回答by orientchen1978
Go to: http://commons.apache.org/proper/commons-io/download_io.cgiDownload: commons-io-2.4-bin.zip Unzip and find commons-io-2.4.jar in folder commons-io-2.4
前往：http://commons.apache.org/proper/commons-io/download_io.cgi 下载：commons-io-2.4-bin.zip 解压并在commons-io-2.4文件夹中找到commons-io-2.4.jar
回答by puppyDomminatedWorld
I was having same issue then realized that the version of commons-io getting picked up was lower than what I need (2.4)....I need to Override the already managed version as below to get the right one picked up:
我遇到了同样的问题，然后意识到获取的 commons-io 版本低于我需要的版本（2.4）。...我需要覆盖如下已管理的版本以获取正确的版本：
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
