2015-02-27

在 Eclipse 為 Tomcat Library 增加原始碼附件

在專案目錄下選擇 [Java Resources]->[Libraries]->[Apache Tomcat]->[xxx.jar]->[右鍵內容]


Java 程式碼附件 就可以連接程式原始碼


Javadoc 位置 則可以連接 Javadoc



其實剛剛的設定都記錄在:
{WorkSpace}/.metadata/.plugins/org.eclipse.jst.server.core/
org.eclipse.jst.server.tomcat.runtimeTarget.xml


內容如下:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<classpath>
  <source-attachment entry="D:/apache-tomcat-7.0.53/lib/commons-io-2.4.jar" runtime-id="Apache Tomcat v7.0" source-attachment-path="D:/apache-tomcat-7.0.53/src/commons-io-2.4-sources.jar">
    <attribute name="javadoc_location" value="jar:file:/D:/apache-tomcat-7.0.53/src/commons-io-2.4-javadoc.jar!/"/>
  </source-attachment>
  <source-attachment entry="D:/apache-tomcat-7.0.53/lib/commons-logging-1.1.3.jar" runtime-id="Apache Tomcat v7.0" source-attachment-path="D:/apache-tomcat-7.0.53/src/commons-logging-1.1.3-sources.jar">
    <attribute name="javadoc_location" value="jar:file:/D:/apache-tomcat-7.0.53/src/commons-logging-1.1.3-javadoc.jar!/"/>
  </source-attachment>
</classpath>


所以只要編寫 org.eclipse.jst.server.tomcat.runtimeTarget.xml 的內容,重新啟動 Eclipse 就會連結原始碼附件,當然這麼麻煩的事還是寫程式自動處理比較快樂,既然是用 Eclipse 寫 Java 當然是用 Ant 來處理是最好的。

首先幾個環境定義:
  • Server Src 路徑:D:/apache-tomcat-7.0.53/src
  • Server Lib 路徑:D:/apache-tomcat-7.0.53/lib
  • Runtime Id:Apache Tomcat v7.0
  • Jar 名稱:xxxxx.jar
  • Source 名稱:xxxxx-sources.jar
  • Javadoc 名稱:xxxxx-javadoc.jar


tomcat-xml-build.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE project>
<project name="tomcat-xml-build" default="deploy-output-xml" basedir=".">

    <!-- 載入額外 ant-contrib 定義  [if,not,or,then,equals] -->
    <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>

    <property name="tomcat.id" value="Apache Tomcat v7.0" />
    <property name="tomcat.home" value="D:/apache-tomcat-7.0.53" />
    <property name="output.file" value="org.eclipse.jst.server.tomcat.runtimeTarget.xml" />
    <basename property="ant.filename" file="${ant.file}" />


    <path id="tomcat.lib">
        <fileset dir="${tomcat.home}/lib" includes="*.jar" />
    </path>


    <target name="build-xml">
        <echo>====================================================================</echo>
        <echo>開始建立 ${output.file}</echo>

        <echo file="${output.file}"><?xml version="1.0" encoding="UTF-8" standalone="no"?>
<classpath>
<!-- Code Generate from "${ant.filename}" --></echo>

        <foreach target="loop-jar-file" param="jar-file">
            <path refid="tomcat.lib"/>
        </foreach>

        <echo file="${output.file}" append="true">
</classpath></echo>

        <echo>====================================================================</echo>
        <echo>完成產生 ${output.file}</echo>
    </target>


    <target name="loop-jar-file" if="jar-file">
        <echo level="info">${jar-file}</echo>

        <basename property="jar-name" file="${jar-file}" suffix=".jar"/>
        <if>
            <or>
                <available file="${tomcat.home}/src/${jar-name}-sources.jar"/>
                <available file="${tomcat.home}/src/${jar-name}-javadoc.jar"/>
            </or>
            <then>
                <echo>輸出  ${jar-name}</echo>
                <echo file="${output.file}" append="true">
  <source-attachment entry="${tomcat.home}/lib/${jar-name}.jar" runtime-id="${tomcat.id}" source-attachment-path="${tomcat.home}/src/${jar-name}-sources.jar">
    <attribute name="javadoc_location" value="jar:file://${tomcat.home}/src/${jar-name}-javadoc.jar!/"/>
  </source-attachment></echo>
            </then>
        </if>
    </target>



    <target name="deploy-output-xml" depends="build-xml">
        <echo>====================================================================</echo>
        <echo>部署 ${output.file} 到 .metadata</echo>

        <eclipse.convertPath resourcepath="workspace_loc:/" property="workspace_loc"/>
        <copy file="${output.file}" todir="${workspace_loc}/.metadata/.plugins/org.eclipse.jst.server.core" />
    </target>


    <target name="show-properties">
        <echoproperties />
    </target>

</project>


執行前需要 ant-contrib,然後啟動配置必須是[在工作區的同一個 JRE 中執行],這是因為用到 Eclipse Ant 所以提供的環境變數,執行完後重新啟動 Eclipse 就可以看到連結的附件。

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