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build.xml Required by Apache Ant
What is the build.xml Required by Apache Ant?
✍: FYIcenter.com
The build.xml file required by Apache Ant
is XML file that contains instructions to build final
targets using system commands and source files.
Here is a tutorial on how to create a build.xml file and use "ant" to build a simple Java project.
1. Create a build.xml as shown below:
> type build.xml <?xml version="1.0" encoding="UTF-8"?> <!-- Set the project name, basedir and default target to be executed--> <project name="Ant-Build-Project-Test" default="mainTarget" basedir="."> <!-- Sets the properties here--> <property name="src.dir" location="src" /> <property name="build.dir" location="bin" /> <!-- Target for deleting the existing directories--> <target name="clean"> <delete dir="${build.dir}" /> </target> <!-- Target for creating the new directories--> <target name="makedir"> <mkdir dir="${build.dir}" /> </target> <!-- Target for compiling the java code--> <target name="compile" depends="clean, makedir"> <javac srcdir="${src.dir}" destdir="${build.dir}"> </javac> </target> <!-- Defualt target to run all targets--> <target name="mainTarget" depends="compile"> <description>Main target</description> </target> </project>
2. Verify your Apache Ant installation:
> \local\ant\bin\ant.bat -version Apache Ant(TM) version 1.10.10 compiled on April 12 2021
3. Run the default target defined in the build.xml. The build process will fail, because there is no "src" sub-directory and Java source code to compile.
> \local\ant\bin\ant.bat Buildfile: \Users\fyicenter\build.xml clean: makedir: [mkdir] Created dir: \Users\fyicenter\bin compile: [javac] build.xml:21: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds BUILD FAILED build.xml:21: srcdir "\Users\fyicenter\src" does not exist! Total time: 0 seconds
4. Run the default target again with a sample Java source code.
> mkdire src > edit src\Hello.java public class Hello { public static void main(String[] args) { System.out.println("Hello world!"); } } > \local\ant\bin\ant.bat Buildfile: build.xml clean: [delete] Deleting directory bin makedir: [mkdir] Created dir: bin compile: [javac] Compiling 1 source file to bin mainTarget: BUILD SUCCESSFUL Total time: 0 seconds
5. Verify the build result:
> dir bin 336 Hello.class > java -cp bin Hello Hello world!
⇒ Download Apache Ant Source Package
⇐ Run Apache Ant on Windows, Mac and Linux
2021-07-10, 462👍, 0💬
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