java - Ant javac : package x does not exist, 但我将 x.jar 添加到 java 构建路径库

Question

我使用 ant 构建文件打开了一个现有项目。我收到很多关于 import x 无法解决的错误。我的项目文件夹中没有这些文件的 src 文件，但我有他们编译的 jar 文件。所以我转到 java build path -> libraries 并使用 add external JARs 将它们添加到我的项目中，我项目中的所有错误都消失了。

但是，现在当我通过运行 ant 文件构建项目时，我得到了

 [javac] Compiling 149 source files to X:\swt\documation\build
 [javac] X:\swt\documation\src\swt\documation\bookshelf\objectmodel\Trans.java:20: package utilities does not exist
 [javac] import utilities.StringUtils;

所以相同的文件给我错误，但我修复了，但再次给我错误。我究竟做错了什么？我将 jar 文件添加到 java 构建路径库中，为什么 eclipse 找不到这些包？

这是 build.xml 文件。

<?xml version="1.0"?>
<project name="documation" basedir="." default="packageApplication">

    <condition property="vob.prefix" value="/cm_data" else="X:">
        <os family="unix" />        
    </condition>

    <property name="jar.keystore" value="${vob.prefix}/swt/cots/signJarKey"/>
    <property name="oracle.cots.dir" value="${vob.prefix}/swt/cots/oracle/oracle/9.2.0"/>
    <property name="utilities.dir" value="${vob.prefix}/swt/utilities/lib"/>    
    <property name="swt.mailer.dir" value="${vob.prefix}/swt/mailer/lib"/>      
    <property name="swt.logger.dir" value="${vob.prefix}/swt/logger/lib"/>  
    <property name="userprofile.dir" value="${vob.prefix}/swt/ups/lib"/>    
    <property name="apache.dir" value="${vob.prefix}/swt/cots/apache/apache/1.3.12"/>   
    <property name="jakarta.dir" value="${vob.prefix}/swt/cots/apache/jakarta"/>    
    <property name="frameworks.dir" value="${vob.prefix}/swt/cots/frameworks"/>
    <property name="spring.dir" value="${frameworks.dir}/spring"/>
    <property name="zk.dir" value="${frameworks.dir}/zk"/>
    <property name="junit.dir" value="${vob.prefix}/swt/cots/junit"/>
    <property name="vob.dir" value="."/>
    <property name="webapp.name" value="documation"/>
    <property name="src.dir" value="${vob.dir}/src"/>
    <property name="bin.dir" value="${vob.dir}/bin"/>

    <!-- This directory must be created view-private -->            
    <property name="build.dir" value="${vob.dir}/build"/>
    <property name="web.dir" value="${vob.dir}/webapps"/>
    <property name="dist.web.dir" value="${build.dir}/webapps"/>    
    <property name="lib.dir" value="${web.dir}/WEB-INF/lib"/>
    <property name="tomcat.home" value="${vob.prefix}/swt/cots/apache/tomcat/6.0.28"/>  
    <property name="dist.dir" value="${vob.dir}/dist"/>
    <property name="tmp.dir" value="${vob.dir}/temp"/>
    <property name="report.dir" value="${vob.dir}/webapps/reports"/>

    <path id="classpath">
        <fileset dir="${junit.dir}">
            <include name="*.jar"/>
        </fileset>     
        <fileset dir="${jakarta.dir}">
            <include name="*.jar"/>
        </fileset>     
        <fileset dir="${apache.dir}">
            <include name="*.jar"/>
        </fileset>    
        <fileset dir="${swt.logger.dir}">
            <include name="*.jar"/>
        </fileset>    
        <fileset dir="${oracle.cots.dir}">
            <include name="*.jar"/>
        </fileset>    
        <fileset dir="${utilities.dir}">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${swt.mailer.dir}">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${userprofile.dir}">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${tomcat.home}">
            <include name="servlet*.jar"/>
        </fileset>
        <fileset dir="${frameworks.dir}">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${spring.dir}">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${zk.dir}">
            <include name="*.jar"/>
        </fileset>
        <fileset dir="${web.dir}/WEB-INF/lib">
            <include name="*.jar"/>
        </fileset>        
        <pathelement path="${build.dir}"/>
    </path>

    <target name="packageApplication" description="tar all application files"
        depends="signJars" >
        <tar destfile="${dist.dir}/documation.tar"
         basedir="${tmp.dir}/webapp"
         includes="**"
        />
    </target>

    <target name="signJars" depends="appletJar">
            <signjar jar="${tmp.dir}/${webapp.name}-applet.jar"
                     alias="dmsKey" 
                     keystore="${jar.keystore}" 
                     storepass="dmsKey" 
                     signedjar="${tmp.dir}/webapp/jsp/${webapp.name}-signed-applet.jar"
            />
            <signjar jar="${vob.prefix}/swt/logger/lib/logger.jar"
                     alias="dmsKey" 
                     keystore="${jar.keystore}" 
                     storepass="dmsKey" 
                     signedjar="${tmp.dir}/webapp/jsp/logger-signed.jar"
            />
            <signjar jar="${vob.prefix}/swt/cots/apache/jakarta/commons-httpclient-3.0.1.jar"
                     alias="dmsKey" 
                     keystore="${jar.keystore}" 
                     storepass="dmsKey" 
                     signedjar="${tmp.dir}/webapp/jsp/httpclient-signed.jar"
            />
            <signjar jar="${vob.prefix}/swt/cots/apache/jakarta/commons-logging-api.jar" 
                     alias="dmsKey" 
                     keystore="${jar.keystore}" 
                     storepass="dmsKey" 
                     signedjar="${tmp.dir}/webapp/jsp/commonlogging-signed.jar"
            />

            <signjar jar="${vob.prefix}/swt/cots/apache/jakarta/commons-codec-1.3.jar" 
                     alias="dmsKey" 
                     keystore="${jar.keystore}" 
                     storepass="dmsKey" 
                     signedjar="${tmp.dir}/webapp/jsp/commoncodec-signed.jar"
            />
    </target>   



    <target name="appletJar" depends="documationJar">
      <jar destfile="${tmp.dir}/${webapp.name}-applet.jar"
           basedir="${build.dir}"
           includes="swt/documation/dms/webdocs/client/*.class"
      />
     </target>  


  <target name="documationJar" depends="zkStyleJar">
    <jar destfile="${tmp.dir}/webapp/WEB-INF/lib/${webapp.name}.jar"
         basedir="${build.dir}"
        includes="swt/documation/bookshelf/**, swt/documation/dms/** swt/documation/objectmodel/** swt/documation/servlets/**" 
        excludes="swt/documation/dms/webdocs/client/*.class"
    />        
   </target>    

    <target name="zkStyleJar" depends="documationNGJar">
      <jar destfile="${tmp.dir}/webapp/WEB-INF/lib/${webapp.name}-ZkStyle.jar"
           basedir="${web.dir}/zkStyle"
           includes="**"
      />
     </target>  


    <target name="documationNGJar" depends="compileBuildDir">
      <jar destfile="${tmp.dir}/webapp/WEB-INF/lib/${webapp.name}NG.jar"
           basedir="${build.dir}"
        includes="swt/documation/ng/** swt/documation/service/** swt/documation/web/**" />    
   </target>

    <target name="compileBuildDir"  description="Compile main source tree java files" depends="copyToTmp">
        <javac destdir="${build.dir}" target="1.5" debug="true"
               deprecation="false" optimize="true" failonerror="true">
               <src path="${src.dir}"/>
                <exclude name="test/swt/documation/service/**/*.java"/>
            <classpath refid="classpath"/>
        </javac>        

    </target>   


    <target name="copyToTmp" depends="cleanTmpDir">             
        <copy todir="${tmp.dir}/webapp">
            <fileset dir="${web.dir}">              
                <exclude name="**/classes/**"/>
                <exclude name="**/lib/*.jar"/>
                <exclude name="**/zkStyle/**"/>
            </fileset>
        </copy>         
   </target>


    <target name="cleanTmpDir">
        <delete>
            <fileset dir="${build.dir}" />
        </delete> 
        <delete>
            <fileset dir="${dist.dir}" />
        </delete>
        <delete>
            <fileset dir="${tmp.dir}" />
        </delete>
        <mkdir dir="${tmp.dir}/webapp"/>
        <mkdir dir="${tmp.dir}/webapp/lib"/>
    </target>


    <target name="reports" description="Compiles all the XML report designs and produces the .jasper files.">
        <taskdef name="jrc" classname="net.sf.jasperreports.ant.JRAntCompileTask"> 
            <classpath refid="classpath"/>
        </taskdef>
        <jrc destdir="${report.dir}">
            <src>
                <fileset dir="${report.dir}">
                    <include name="**/*.jrxml"/>
                </fileset>
            </src>
            <classpath refid="classpath"/>
        </jrc> 
    </target>   

</project>

Answer 1

添加libraries eclipse 构建路径不同于 Ant构建路径，让 Eclipse 编译你的项目，你所做的是正确的。但是为了使您的 ant 构建正常工作，您需要放置 libraries在您的 Ant 中定义的位置构建 xml。我想看看你的Ant构建 xml，您应该放置用于修复的库 import utilities.StringUtils ${vob.prefix}/swt/utilities/lib 中的问题检查线路

<property name="utilities.dir" value="${vob.prefix}/swt/utilities/lib"/>