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Java-如何导入外部软件包?

[英]Java - How to import external packages?

我对Java还是比较陌生。 我已经尝试寻找解决方案,但是我想我对Java的了解还不够,甚至不知道我应该寻找什么。

我想尝试语音识别,所以我下载了CMU的Sphinx-4源代码并进行了编译。 一旦一切正常,我就可以运行包含的演示了。 接下来,我在保存Sphinx-4目录的目录中为我的代码创建了目录(/ Jarvis /)。 在Sphinx-4源目录中,有一长串目录可以引导我玩过的演示(/Sphinx4-1.0beta6/src/apps/edu/cmu/sphinx/demo/)。 在demo文件夹中,是一个HelloWorld目录,其中包含使用Sphinx-4函数的简单程序的源代码。 我的首要目标是在为自己的代码设置的目录中获取此演示的副本。 因此,我已经制作了HelloWorld文件的副本,并将它们放置在我的Jarvis目录中。 重命名并更改了代码,因此以前是HelloWorld的所有内容现在都是Jarvis。 不幸的是,我遇到的问题并不像命名问题那么简单,而是找到软件包的路径。

对于Java,过去我只使用过一个简单的“ javac example.java”命令来编译代码。 我猜在这种情况下我可能还需要一些东西,但是我不确定到底是什么。 当尝试以这种方式进行编译时,出现错误:

Jarvis.java:15: error: package edu.cmu.sphinx.frontend.util does not exist
import edu.cmu.sphinx.frontend.util.Microphone;
                                   ^
Jarvis.java:16: error: package edu.cmu.sphinx.recognizer does not exist
import edu.cmu.sphinx.recognizer.Recognizer;
                                ^
Jarvis.java:17: error: package edu.cmu.sphinx.result does not exist
import edu.cmu.sphinx.result.Result;
                            ^
Jarvis.java:18: error: package edu.cmu.sphinx.util.props does not exist
import edu.cmu.sphinx.util.props.ConfigurationManager;
                                ^
Jarvis.java:28: error: cannot find symbol
        ConfigurationManager cm;
        ^
  symbol:   class ConfigurationManager
  location: class Jarvis
Jarvis.java:31: error: cannot find symbol
            cm = new ConfigurationManager(args[0]);
                     ^
  symbol:   class ConfigurationManager
  location: class Jarvis
Jarvis.java:33: error: cannot find symbol
            cm = new ConfigurationManager(Jarvis.class.getResource("jarvis.config.xml"));
                     ^
  symbol:   class ConfigurationManager
  location: class Jarvis
Jarvis.java:36: error: cannot find symbol
        Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
        ^
  symbol:   class Recognizer
  location: class Jarvis
Jarvis.java:36: error: cannot find symbol
        Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
                                 ^
  symbol:   class Recognizer
  location: class Jarvis
Jarvis.java:40: error: cannot find symbol
        Microphone microphone = (Microphone) cm.lookup("microphone");
        ^
  symbol:   class Microphone
  location: class Jarvis
Jarvis.java:40: error: cannot find symbol
        Microphone microphone = (Microphone) cm.lookup("microphone");
                                 ^
  symbol:   class Microphone
  location: class Jarvis
Jarvis.java:53: error: cannot find symbol
            Result result = recognizer.recognize();
            ^
  symbol:   class Result
  location: class Jarvis
12 errors

因此,我希望包括那些缺少的包裹。 我知道这与代码中如何定义路径有关,但是我对Java的了解还不够,还不知道如何定义这些路径。 我是否想在代码中进行更多更改? 我应该以不同的方式执行编译吗? 只要朝正确的方向推进就很有用。

下面,我包括了4个文件,这些文件最初来自HelloWorld演示,我对其做了些微的命名修改。

感谢您的时间!

Jarvis.java:

package jarvis.jarvis;

import edu.cmu.sphinx.frontend.util.Microphone;
import edu.cmu.sphinx.recognizer.Recognizer;
import edu.cmu.sphinx.result.Result;
import edu.cmu.sphinx.util.props.ConfigurationManager;


/**
 * A simple HelloWorld demo showing a simple speech application built using Sphinx-4. This application uses the Sphinx-4
 * endpointer, which automatically segments incoming audio into utterances and silences.
 */
public class Jarvis {

    public static void main(String[] args) {
            ConfigurationManager cm;

        if (args.length > 0) {
            cm = new ConfigurationManager(args[0]);
        } else {
            cm = new ConfigurationManager(Jarvis.class.getResource("jarvis.config.xml"));
        }

        Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
        recognizer.allocate();

        // start the microphone or exit if the programm if this is not possible
        Microphone microphone = (Microphone) cm.lookup("microphone");
        if (!microphone.startRecording()) {
            System.out.println("Cannot start microphone.");
            recognizer.deallocate();
            System.exit(1);
        }

        System.out.println("Say: (Good morning | Hello) ( Bhiksha | Evandro | Paul | Philip | Rita | Will )");

        // loop the recognition until the programm exits.
        while (true) {
            System.out.println("Start speaking. Press Ctrl-C to quit.\n");

            Result result = recognizer.recognize();

            if (result != null) {
                String resultText = result.getBestFinalResultNoFiller();
                System.out.println("You said: " + resultText + '\n');
            } else {
                System.out.println("I can't hear what you said.\n");
            }
        }
    }
}

jarvis.config.xml:

<?xml version="1.0" encoding="UTF-8"?>

<!--
   Sphinx-4 Configuration file
-->

<!-- ******************************************************** -->
<!--  an4 configuration file                             -->
<!-- ******************************************************** -->

<config>

    <!-- ******************************************************** -->
    <!-- frequently tuned properties                              -->
    <!-- ******************************************************** -->

    <property name="logLevel" value="WARNING"/>

    <property name="absoluteBeamWidth"  value="-1"/>
    <property name="relativeBeamWidth"  value="1E-80"/>
    <property name="wordInsertionProbability" value="1E-36"/>
    <property name="languageWeight"     value="8"/>

    <property name="frontend" value="epFrontEnd"/>
    <property name="recognizer" value="recognizer"/>
    <property name="showCreations" value="false"/>


    <!-- ******************************************************** -->
    <!-- word recognizer configuration                            -->
    <!-- ******************************************************** -->

    <component name="recognizer" type="edu.cmu.sphinx.recognizer.Recognizer">
        <property name="decoder" value="decoder"/>
        <propertylist name="monitors">
            <item>accuracyTracker </item>
            <item>speedTracker </item>
            <item>memoryTracker </item>
        </propertylist>
    </component>

    <!-- ******************************************************** -->
    <!-- The Decoder   configuration                              -->
    <!-- ******************************************************** -->

    <component name="decoder" type="edu.cmu.sphinx.decoder.Decoder">
        <property name="searchManager" value="searchManager"/>
    </component>

    <component name="searchManager"
        type="edu.cmu.sphinx.decoder.search.SimpleBreadthFirstSearchManager">
        <property name="logMath" value="logMath"/>
        <property name="linguist" value="flatLinguist"/>
        <property name="pruner" value="trivialPruner"/>
        <property name="scorer" value="threadedScorer"/>
        <property name="activeListFactory" value="activeList"/>
    </component>


    <component name="activeList"
             type="edu.cmu.sphinx.decoder.search.PartitionActiveListFactory">
        <property name="logMath" value="logMath"/>
        <property name="absoluteBeamWidth" value="${absoluteBeamWidth}"/>
        <property name="relativeBeamWidth" value="${relativeBeamWidth}"/>
    </component>

    <component name="trivialPruner"
                type="edu.cmu.sphinx.decoder.pruner.SimplePruner"/>

    <component name="threadedScorer"
                type="edu.cmu.sphinx.decoder.scorer.ThreadedAcousticScorer">
        <property name="frontend" value="${frontend}"/>
    </component>

    <!-- ******************************************************** -->
    <!-- The linguist  configuration                              -->
    <!-- ******************************************************** -->

    <component name="flatLinguist"
                type="edu.cmu.sphinx.linguist.flat.FlatLinguist">
        <property name="logMath" value="logMath"/>
        <property name="grammar" value="jsgfGrammar"/>
        <property name="acousticModel" value="wsj"/>
        <property name="wordInsertionProbability"
                value="${wordInsertionProbability}"/>
        <property name="languageWeight" value="${languageWeight}"/>
        <property name="unitManager" value="unitManager"/>
    </component>


    <!-- ******************************************************** -->
    <!-- The Grammar  configuration                               -->
    <!-- ******************************************************** -->

    <component name="jsgfGrammar" type="edu.cmu.sphinx.jsgf.JSGFGrammar">
        <property name="dictionary" value="dictionary"/>
        <property name="grammarLocation"
             value="resource:/edu/cmu/sphinx/demo/jarvis/"/>
        <property name="grammarName" value="jarvis"/>
    <property name="logMath" value="logMath"/>
    </component>


    <!-- ******************************************************** -->
    <!-- The Dictionary configuration                            -->
    <!-- ******************************************************** -->

    <component name="dictionary"
        type="edu.cmu.sphinx.linguist.dictionary.FastDictionary">
        <property name="dictionaryPath"
     value="resource:/WSJ_8gau_13dCep_16k_40mel_130Hz_6800Hz/dict/cmudict.0.6d"/>
        <property name="fillerPath"
     value="resource:/WSJ_8gau_13dCep_16k_40mel_130Hz_6800Hz/noisedict"/>
        <property name="addSilEndingPronunciation" value="false"/>
        <property name="allowMissingWords" value="false"/>
        <property name="unitManager" value="unitManager"/>
    </component>

    <!-- ******************************************************** -->
    <!-- The acoustic model configuration                         -->
    <!-- ******************************************************** -->
    <component name="wsj"
               type="edu.cmu.sphinx.linguist.acoustic.tiedstate.TiedStateAcousticModel">
        <property name="loader" value="wsjLoader"/>
        <property name="unitManager" value="unitManager"/>
    </component>

    <component name="wsjLoader" type="edu.cmu.sphinx.linguist.acoustic.tiedstate.Sphinx3Loader">
        <property name="logMath" value="logMath"/>
        <property name="unitManager" value="unitManager"/>
        <property name="location" value="resource:/WSJ_8gau_13dCep_16k_40mel_130Hz_6800Hz"/>
    </component>


    <!-- ******************************************************** -->
    <!-- The unit manager configuration                           -->
    <!-- ******************************************************** -->

    <component name="unitManager"
        type="edu.cmu.sphinx.linguist.acoustic.UnitManager"/>

    <!-- ******************************************************** -->
    <!-- The frontend configuration                               -->
    <!-- ******************************************************** -->

    <component name="frontEnd" type="edu.cmu.sphinx.frontend.FrontEnd">
        <propertylist name="pipeline">
            <item>microphone </item>
            <item>preemphasizer </item>
            <item>windower </item>
            <item>fft </item>
            <item>melFilterBank </item>
            <item>dct </item>
            <item>liveCMN </item>
            <item>featureExtraction </item>
        </propertylist>
    </component>

    <!-- ******************************************************** -->
    <!-- The live frontend configuration                          -->
    <!-- ******************************************************** -->
    <component name="epFrontEnd" type="edu.cmu.sphinx.frontend.FrontEnd">
        <propertylist name="pipeline">
            <item>microphone </item>
            <item>dataBlocker </item>
            <item>speechClassifier </item>
            <item>speechMarker </item>
            <item>nonSpeechDataFilter </item>
            <item>preemphasizer </item>
            <item>windower </item>
            <item>fft </item>
            <item>melFilterBank </item>
            <item>dct </item>
            <item>liveCMN </item>
            <item>featureExtraction </item>
        </propertylist>
    </component>

    <!-- ******************************************************** -->
    <!-- The frontend pipelines                                   -->
    <!-- ******************************************************** -->

    <component name="dataBlocker" type="edu.cmu.sphinx.frontend.DataBlocker">
        <!--<property name="blockSizeMs" value="10"/>-->
    </component>

    <component name="speechClassifier"
               type="edu.cmu.sphinx.frontend.endpoint.SpeechClassifier">
        <property name="threshold" value="13"/>
    </component>

    <component name="nonSpeechDataFilter"
               type="edu.cmu.sphinx.frontend.endpoint.NonSpeechDataFilter"/>

    <component name="speechMarker"
               type="edu.cmu.sphinx.frontend.endpoint.SpeechMarker" >
        <property name="speechTrailer" value="50"/>
    </component>


    <component name="preemphasizer"
               type="edu.cmu.sphinx.frontend.filter.Preemphasizer"/>

    <component name="windower"
               type="edu.cmu.sphinx.frontend.window.RaisedCosineWindower">
    </component>

    <component name="fft"
            type="edu.cmu.sphinx.frontend.transform.DiscreteFourierTransform">
    </component>

    <component name="melFilterBank"
        type="edu.cmu.sphinx.frontend.frequencywarp.MelFrequencyFilterBank">
    </component>

    <component name="dct"
            type="edu.cmu.sphinx.frontend.transform.DiscreteCosineTransform"/>

    <component name="liveCMN"
               type="edu.cmu.sphinx.frontend.feature.LiveCMN"/>

    <component name="featureExtraction"
               type="edu.cmu.sphinx.frontend.feature.DeltasFeatureExtractor"/>

    <component name="microphone"
               type="edu.cmu.sphinx.frontend.util.Microphone">
        <property name="closeBetweenUtterances" value="false"/>
    </component>


    <!-- ******************************************************* -->
    <!--  monitors                                               -->
    <!-- ******************************************************* -->

    <component name="accuracyTracker"
                type="edu.cmu.sphinx.instrumentation.BestPathAccuracyTracker">
        <property name="recognizer" value="${recognizer}"/>
        <property name="showAlignedResults" value="false"/>
        <property name="showRawResults" value="false"/>
    </component>

    <component name="memoryTracker"
                type="edu.cmu.sphinx.instrumentation.MemoryTracker">
        <property name="recognizer" value="${recognizer}"/>
    <property name="showSummary" value="false"/>
    <property name="showDetails" value="false"/>
    </component>

    <component name="speedTracker"
                type="edu.cmu.sphinx.instrumentation.SpeedTracker">
        <property name="recognizer" value="${recognizer}"/>
        <property name="frontend" value="${frontend}"/>
    <property name="showSummary" value="true"/>
    <property name="showDetails" value="false"/>
    </component>


    <!-- ******************************************************* -->
    <!--  Miscellaneous components                               -->
    <!-- ******************************************************* -->

    <component name="logMath" type="edu.cmu.sphinx.util.LogMath">
        <property name="logBase" value="1.0001"/>
        <property name="useAddTable" value="true"/>
    </component>

</config>

jarvis.gram:

#JSGF V1.0;

/**
 * JSGF Grammar for Hello World example
 */

grammar jarvis;

public <greet> = (Good morning | Hello) ( Bhiksha | Evandro | Paul | Philip | Rita | Will );

jarvis.Manifest

Main-Class: jarvis.Jarvis
Class-Path: ../sphinx4-1.0beta6/lib/sphinx4.jar ../sphinx4-1.0beta6/lib/WSJ_8gau_13dCep_16k_40mel_130Hz_6800Hz.jar

编译器使用“类路径”查找所需的库。 设置类路径的方法有很多:一种是使用CLASSPATH环境变量,另一种是使用-classpath命令行开关。 总之,您可以使用以下命令进行编译:

javac -classpath path/to/sphinx.jar jarvis/Jarvis.java

您可以在http://docs.oracle.com/javase/7/docs/technotes/tools/windows/classpath.html中找到完整的文档

另一件事:您的Jarvis类声明它在名为jarvis.jarvis的包中,因此jarvis.jarvis的完全限定名称为jarvis.jarvis.Jarvis ...不确定您要使用的是什么。

使用“ -classpath”选项告诉javac在哪里可以找到所有需要的类。

javac -classpath lib/blablabla.jar;lib/foobar.jar

设置类路径

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