如何使用Apache Ant以UTF-8编码Java文件？

Question

在我的build.xml文件中,我通过cxf获取一些Java文件.其中一些Java文件需要以UTF-8编码.如何使用Ant将编码更改为UTF-8？

PS:我找到了如何将javac的编码设置为UTF-8的说明,但在javac之前,我需要Java文件为UTF-8.否则我收到一个错误:

警告:编码utf-8的不可映射的字符

这是我的代码:

<macrodef name="lpwservice">
    <attribute name="name"/>
    <attribute name="package"/>
    <sequential>
        <property name="wsdlfile" value="${portal.basedir}/lpw/wsdl/@{name}.wsdl"/>

        <mkdir dir="${portal.basedir}/lpw/wsdl"/>
        <get src="${lpw.baseuri.cxf}/@{name}?wsdl" dest="${portal.basedir}/lpw/wsdl/@{name}.wsdl.new"/>
        <if>
            <and>
                <filesmatch file1="${portal.basedir}/lpw/wsdl/@{name}.wsdl" file2="${portal.basedir}/lpw/wsdl/@{name}.wsdl.new"/>
                <uptodate targetfile="${portal.basedir}/lpw-wsdl.jar" srcfile="${portal.basedir}/lpw/wsdl/@{name}.wsdl"/>
            </and>
            <then>
                <echo message="${wsdlfile} is up to date" level="info"/>
                <delete file="${portal.basedir}/lpw/wsdl/@{name}.wsdl.new"/>
            </then>
            <else>
                <echo message="${portal.basedir}/lpw/wsdl/@{name}.wsdl needs update" level="info"/>
                <move file="${portal.basedir}/lpw/wsdl/@{name}.wsdl.new" tofile="${portal.basedir}/lpw/wsdl/@{name}.wsdl" overwrite="true" />
                <java classname="org.apache.cxf.tools.wsdlto.WSDLToJava" fork="true" failonerror="true">
                    <arg value="-client"/>
                    <arg value="-d"/>
                    <arg value="${portal.basedir}/lpw/src"/>
                    <arg value="${portal.basedir}/lpw/wsdl/@{name}.wsdl"/>
                    <classpath>
                        <path refid="cxf.classpath"/>
                    </classpath>
                </java>
            </else>
        </if>
    </sequential>
</macrodef>

我该怎么办呢

<java classname="org.apache.cxf.tools.wsdlto.WSDLToJava" fork="true" failonerror="true">

在utf-8中编码java文件？

Answer 1

Ant的<copy>任务有属性encoding和outputencoding.

单个Java文件

<copy file="myJavaFile.java" tofile="myJavaFile.java" overwrite="true"
    encoding="ISO-8859-1" outputencoding="UTF-8" />

目录中的所有Java文件

<property name="source.dir" location="/path/to/java/files" />

<copy todir="${source.dir}" overwrite="true"
    encoding="ISO-8859-1" outputencoding="UTF-8">
  <fileset dir="${source.dir}" includes="*.java" />
</copy>

只需更改ISO-8859-1为Java文件的编码格式即可.