【问题标题】:Ant build fails to mkdirAnt 构建失败 mkdir
【发布时间】:2016-05-23 00:17:38
【问题描述】:

我目前正在尝试为不再为美国服务的旧 MMO 获取私人服务器。我绝不是 Java 高手,但我一直在谷歌上搜索并用头撞墙几个小时,但没有运气。我为此使用 eclipse,安装了 JDK 和 JRE 并配置了路径。

build.xml 文件:

<?xml version="1.0" encoding="UTF-8"?>
<project name="L1J" default="all" basedir=".">
<description>
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see http://www.gnu.org/licenses/
</description>

<!-- Set Property -->
<property name="src.dir" value="src" />
<property name="lib.dir" value="libs" />
<property name="build.dir" value="build" />
<property name="main.class" value="jp.l1j.Server" />
<property name="jarfile" value="l1jserver.jar" />

<path id="libs">
    <fileset dir="${lib.dir}" includes="*.jar"/>
</path>
<pathconvert property="classpath" refid="libs" targetos="windows"  pathsep=" ">
    <map from="${basedir}\${lib.dir}\" to="./${lib.dir}/"/>
    <map from="\" to="/"/>
</pathconvert>

<!-- Set DefaultTarget -->
<target name="all" depends="clean,compile,jar,clean2" />

<!-- clean Target -->
<target name="clean">
    <delete dir="${build.dir}" />
</target>

<!-- Compile Target -->
<target name="compile">
    <mkdir dir="${build.dir}" />
    <javac includeantruntime="true" srcdir="${src.dir}"
        destdir="${build.dir}"
        optimize="on"
        debug="on"
        encoding="UTF-8">
        <classpath refid="libs" />
        <compilerarg value="-Xlint:unchecked" />
    </javac>
</target>

<!-- jar Target -->
<target name="jar">
    <jar jarfile="${jarfile}" basedir="${build.dir}">
        <manifest>
            <attribute name="Main-Class" value="${main.class}" />
            <attribute name="Class-Path" value="${classpath}" />
        </manifest>
    </jar>
</target>

<!-- clean Target -->
<target name="clean2">
    <delete dir="${build.dir}" />
</target>

</project>

运行 Build.xml 后 Eclipse 的输出:

Buildfile: C:\Users\Administrator\workspace\L1J\build.xml

BUILD FAILED
C:\Users\Administrator\workspace\L1J\build.xml:28: C:\Users\Administrator\workspace\L1J\libs does not exist.

Total time: 390 milliseconds

我确实尝试过手动创建目录并这样做允许脚本运行,但是当它与此启动服务器批处理文件一起运行时,这给了我一个“找不到或加载主类 jp.l1j.server”错误:

@java -server -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=256m -Xms1024m -Xmx1024m -XX:NewRatio=2 -XX:SurvivorRatio=8  -jar l1jserver
@pause

任何帮助将不胜感激!

【问题讨论】:

    标签: java xml eclipse ant


    【解决方案1】:

    您不需要任何第三方库来编译或运行您的应用程序吗? 由于您必须手动创建 libs 目录,因此您的类路径似乎始终为空。我假设您在构建 jar 时不需要任何依赖项,因为 ant 构建成功,但也许您在运行时需要一些依赖项?

    【讨论】:

      【解决方案2】:

      fileset 嵌套在path 中,ID 为 libs,一旦执行pathconvert 任务,它就会扫描目录 libs。由于pathconvert 在任何target 之外,它在任何target 之前执行。

      此外,无论如何,我没有看到任何 mkdir 与 lib.dir。

      【讨论】:

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