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我的 android 项目关于演奏钢琴音乐，所以我添加jfugue.jar到我的项目中。我的Java代码是：

 line no:29    Player player=new Player();
 line no:30    player.play("C D E F G A B");

上面的代码是用按钮 onclick 监听器编写的。当我点击button我得到RunTimeEexception的，如下：

  02-25 09:20:54.062: W/dalvikvm(846): VFY: unable to find class referenced in signature (Ljavax/sound/midi/Sequencer;)

   02-25 09:20:54.082: I/dalvikvm(846): Could not find method javax.sound.midi.MidiSystem.getSequencer, referenced from method org.jfugue.Player.<init>

   02-25 09:20:54.082: W/dalvikvm(846): VFY: unable to resolve static method 3600: Ljavax/sound/midi/MidiSystem;.getSequencer (Z)Ljavax/sound/midi/Sequencer;

    02-25 09:20:54.082: D/dalvikvm(846): VFY: replacing opcode 0x71 at 0x0011
    02-25 09:20:54.092: W/dalvikvm(846): VFY: unable to find exception handler at addr 0x1c
     02-25 09:20:54.102: W/dalvikvm(846): VFY:  rejected Lorg/jfugue/Player;.<init> (Z)V
    02-25 09:20:54.102: W/dalvikvm(846): Verifier rejected class Lorg/jfugue/Player;

     02-25 09:20:54.122: D/AndroidRuntime(846): Shutting down VM
    02-25 09:20:54.122: W/dalvikvm(846): threadid=1: thread exiting with uncaught exception (group=0x40a70930)

     02-25 09:20:54.152: E/AndroidRuntime(846): FATAL EXCEPTION: main
     02-25 09:20:54.152: E/AndroidRuntime(846): java.lang.VerifyError: org/jfugue/Player
    02-25 09:20:54.152: E/AndroidRuntime(846):  at com.example.xyz.MainActivity$1.onClick(MainActivity.java:29)
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2 回答 2

3

我从未使用过 jFugue，但看起来你的问题是 Android 没有实现 javax.sound.midi。所以你需要找到/开发这个包的实现。

以下是讨论的一些选项：除了 javax.sound.midi，Java 中一个简单的免费 MIDI 实现：有吗？

于 2013-02-25T10:02:10.980 回答
0

你在哪里插入你的jar文件。？另外请检查您是否已经构建了jar文件。

于 2013-02-25T09:45:40.810 回答