如何显示构建失败与蚂蚁

Question

I am using a fake ant(we have our own version of ant that at some point calls the original ant) to run a java applciation. The I run the application I want ant to display Build Failed whenever there is an exception thrown in the code.

Right now what is happening is that if I throw an exception in the code, the ant displays the exception on the terminal but writes Build Successful in the end. How can I make the build fail in the case of any exception ? Even if I exit the program by writing System.exit(1) it writes Java Result: 1 but still writes that the Build was successful. I am using try/catch in the build.xml file but it doesn't help.

The ant target in the build file looks like this.

<target name="localhostIsAlive">
    <trycatch>
        <try>
            <java classname="x.y.z.ClassName" fork="true" spawn="${spawnDB}">  
                <arg line="${version}"/>    
                    <classpath>
                        <pathelement location="${basedir}/classes"/>
                    </classpath>                            
            </java>             
        </try>
        <catch>
            <fail message="Some error occured, build should fail"/>
        </catch>
    </trycatch>
</target>

Now, what I want is that if there is any exception thrown during the execution of the program, it should display build failed and not build successful.

Any ideas ?

Answer 1

使用failonerror属性：

<java classname="x.y.z.ClassName" fork="true" spawn="${spawnDB}" failonerror="true">

Answer 2

您可以使用 ：

failonerror="true"