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我在 java 中完成了一个项目，即使用 javaCV 库的运动检测软件。当我从 netbeans 调试代码时，它可以正常工作。它检测运动并发出警报，发送邮件等。但是当我清理和构建代码时，获得的 .jar 文件没有加载网络摄像头。当我打开那个 .jar 文件时，它显示一个空白画布。我可以提供的另一个信息是，当我清理和构建时，o/p 会显示一些警告，例如不推荐使用的 API。

init:
deps-clean:
Created dir: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build
Updating property file: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\built-clean.properties
Deleting directory C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build
clean:
init:
deps-jar:
Created dir: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build
Updating property file: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\built-jar.properties
Created dir: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\classes
Created dir: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\empty
Created dir: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\generated-sources\ap-source-output
Compiling 35 source files to C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\classes
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:7: warning: String is internal proprietary API and may be removed in a future release
import com.sun.org.apache.xpath.internal.operations.String;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:17: warning: AudioPlayer is internal proprietary API and may be removed in a future release
import sun.audio.AudioPlayer;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:18: warning: AudioStream is internal proprietary API and may be removed in a future release
import sun.audio.AudioStream;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:12: warning: AudioStream is internal proprietary API and may be removed in a future release
import sun.audio.AudioStream;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:32: warning: String is internal proprietary API and may be removed in a future release
    String t;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:36: warning: String is internal proprietary API and may be removed in a future release
    static String user;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:287: warning: AudioStream is internal proprietary API and may be removed in a future release
            AudioStream as = null;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:300: warning: AudioStream is internal proprietary API and may be removed in a future release
                as = new AudioStream(in);
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:312: warning: AudioPlayer is internal proprietary API and may be removed in a future release
            AudioPlayer.player.start(as);
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\NewJFrame1.java:502: warning: String is internal proprietary API and may be removed in a future release
    public static void main(String args[]) {
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:44: warning: AudioStream is internal proprietary API and may be removed in a future release
    AudioStream as;
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:109: warning: AudioStream is internal proprietary API and may be removed in a future release
        as = new AudioStream(in);
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:220: warning: AudioPlayer is internal proprietary API and may be removed in a future release
                        AudioPlayer.player.start(as);
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:232: warning: AudioStream is internal proprietary API and may be removed in a future release
                        as = new AudioStream(in);
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:281: warning: AudioPlayer is internal proprietary API and may be removed in a future release
            AudioPlayer.player.stop(as);
C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\src\projectlogin\operation.java:286: warning: AudioPlayer is internal proprietary API and may be removed in a future release
        AudioPlayer.player.stop(as);
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
16 warnings
Copying 15 files to C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build\classes
compile:
Created dir: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\dist
Copying 1 file to C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\build
Copy libraries to C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\dist\lib.
Building jar: C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\dist\projectlogin.jar
To run this application from the command line without Ant, try:
java -jar "C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\dist\projectlogin.jar"
jar:
BUILD SUCCESSFUL (total time: 7 seconds)
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1 回答 1

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输出表明您应该从命令行运行它java -jar "C:\Users\Anooj\Documents\NetBeansProjects\projectlogin\dist\projectlogin.jar

如果从 dist 目录运行它，它将包含项目所需的库。我怀疑您正在尝试在没有关联库的情况下运行该项目。

于 2012-12-12T18:01:17.370 回答