How to make javac compiler write the output to both file and console?

问题

I am running javac task using ant and I send the output to a log file using -Xstdout compiler argument for reporting purposes, but I would like the output also still being send to the console so hudson can capture it for on screen review.

Is there a way for this to be done?

回答1:

Just came across another alternative using the recorder task. Nearer as you don't have to introduce new targets.

<compile >
    <record name="log.txt" action="start"/>
    <javac ...
    <record name="log.txt" action="stop"/>
<compile/>

回答2:

use the ant task with an output attribute to call a target that has the javac task.

e.g.

<target name="javac" depends="libs" description="Compile java source">
    <mkdir dir="${classes.dir}" />
    <ant target="actual-javac" output="javac.log"/>
</target>

<target name="actual-javac">
    <javac .../>
    </javac>
</target>

回答3:

you can use tee on any process on the command line to output to the console and a file:

>myprocess.sh | tee myprocess.log

will print the output of myprocess.sh both to the console and myprocess.log.

来源：https://stackoverflow.com/questions/1235970/how-to-make-javac-compiler-write-the-output-to-both-file-and-console