java代码运行pi4j的例子报错（ubuntu mate64位系统）

小土豆 65cm • 2020-09-05 • 1166 次点击

Exception in thread "main" java.lang.UnsatisfiedLinkError: com.pi4j.wiringpi.Gpio.wiringPiSetup()I
	at com.pi4j.wiringpi.Gpio.wiringPiSetup(Native Method)
	at com.pi4j.io.gpio.RaspiGpioProvider.<init>(RaspiGpioProvider.java:69)
	at com.pi4j.io.gpio.RaspiGpioProvider.<init>(RaspiGpioProvider.java:51)
	at com.pi4j.platform.Platform.getGpioProvider(Platform.java:125)
	at com.pi4j.platform.Platform.getGpioProvider(Platform.java:118)
	at com.pi4j.io.gpio.GpioFactory.getDefaultProvider(GpioFactory.java:109)
	at com.pi4j.io.gpio.impl.GpioControllerImpl.<init>(GpioControllerImpl.java:53)
	at com.pi4j.io.gpio.GpioFactory.getInstance(GpioFactory.java:91)
	at LEDBreathingLight.main(LEDBreathingLight.java:29)

以下是正常的类库什么的
xiaotudou@xiaotudou:/opt/pi4j/lib$ gpio -v
gpio version: 2.60
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
  Type: Pi 4B, Revision: 04, Memory: 0MB, Maker: Sony 
  * Device tree is enabled.
  *--> Raspberry Pi 4 Model B Rev 1.4
  * This Raspberry Pi supports user-level GPIO access.

xiaotudou@xiaotudou:/opt/pi4j/lib$ gpio readall
 +-----+-----+---------+------+---+---Pi 4B--+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
 |   2 |   8 |   SDA.1 | ALT0 | 1 |  3 || 4  |   |      | 5v      |     |     |
 |   3 |   9 |   SCL.1 | ALT0 | 1 |  5 || 6  |   |      | 0v      |     |     |
 |   4 |   7 | GPIO. 7 |   IN | 1 |  7 || 8  | 1 | ALT5 | TxD     | 15  | 14  |
 |     |     |      0v |      |   |  9 || 10 | 1 | ALT5 | RxD     | 16  | 15  |
 |  17 |   0 | GPIO. 0 |   IN | 0 | 11 || 12 | 0 | IN   | GPIO. 1 | 1   | 18  |
 |  27 |   2 | GPIO. 2 |   IN | 0 | 13 || 14 |   |      | 0v      |     |     |
 |  22 |   3 | GPIO. 3 |   IN | 0 | 15 || 16 | 0 | IN   | GPIO. 4 | 4   | 23  |
 |     |     |    3.3v |      |   | 17 || 18 | 0 | IN   | GPIO. 5 | 5   | 24  |
 |  10 |  12 |    MOSI | ALT0 | 0 | 19 || 20 |   |      | 0v      |     |     |
 |   9 |  13 |    MISO | ALT0 | 0 | 21 || 22 | 0 | IN   | GPIO. 6 | 6   | 25  |
 |  11 |  14 |    SCLK | ALT0 | 0 | 23 || 24 | 1 | OUT  | CE0     | 10  | 8   |
 |     |     |      0v |      |   | 25 || 26 | 1 | OUT  | CE1     | 11  | 7   |
 |   0 |  30 |   SDA.0 |   IN | 1 | 27 || 28 | 1 | IN   | SCL.0   | 31  | 1   |
 |   5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |     |
 |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  | 12  |
 |  13 |  23 | GPIO.23 |   IN | 0 | 33 || 34 |   |      | 0v      |     |     |
 |  19 |  24 | GPIO.24 |   IN | 0 | 35 || 36 | 0 | IN   | GPIO.27 | 27  | 16  |
 |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  | 20  |
 |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  | 21  |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+---Pi 4B--+---+------+---------+-----+-----+

xiaotudou@xiaotudou:~/data/test$ java -classpath .:classes:/opt/pi4j/lib/'*' LEDBreathingLight
Let's gogogogogoogo...Breathing~
Sep 05, 2020 2:21:15 PM com.pi4j.util.NativeLibraryLoader load
SEVERE: Unable to load [libpi4j.so] using path: [/lib/raspberrypi/dynamic/libpi4j.so]
java.lang.UnsatisfiedLinkError: /tmp/libpi4j1709006903530610670.so: /tmp/libpi4j1709006903530610670.so: wrong ELF class: ELFCLASS32
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1824)
at java.lang.Runtime.load0(Runtime.java:809)
at java.lang.System.load(System.java:1086)
at com.pi4j.util.NativeLibraryLoader.loadLibraryFromClasspath(NativeLibraryLoader.java:159)
at com.pi4j.util.NativeLibraryLoader.load(NativeLibraryLoader.java:105)
at com.pi4j.wiringpi.Gpio.<clinit>(Gpio.java:189)
at com.pi4j.io.gpio.RaspiGpioProvider.<init>(RaspiGpioProvider.java:69)
at com.pi4j.io.gpio.RaspiGpioProvider.<init>(RaspiGpioProvider.java:51)
at com.pi4j.platform.Platform.getGpioProvider(Platform.java:125)
at com.pi4j.platform.Platform.getGpioProvider(Platform.java:118)
at com.pi4j.io.gpio.GpioFactory.getDefaultProvider(GpioFactory.java:109)
at com.pi4j.io.gpio.impl.GpioControllerImpl.<init>(GpioControllerImpl.java:53)
at com.pi4j.io.gpio.GpioFactory.getInstance(GpioFactory.java:91)
at LEDBreathingLight.main(LEDBreathingLight.java:29)

Exception in thread "main" java.lang.UnsatisfiedLinkError: com.pi4j.wiringpi.Gpio.wiringPiSetup()I
at com.pi4j.wiringpi.Gpio.wiringPiSetup(Native Method)
at com.pi4j.io.gpio.RaspiGpioProvider.<init>(RaspiGpioProvider.java:69)
at com.pi4j.io.gpio.RaspiGpioProvider.<init>(RaspiGpioProvider.java:51)
at com.pi4j.platform.Platform.getGpioProvider(Platform.java:125)
at com.pi4j.platform.Platform.getGpioProvider(Platform.java:118)
at com.pi4j.io.gpio.GpioFactory.getDefaultProvider(GpioFactory.java:109)
at com.pi4j.io.gpio.impl.GpioControllerImpl.<init>(GpioControllerImpl.java:53)
at com.pi4j.io.gpio.GpioFactory.getInstance(GpioFactory.java:91)
at LEDBreathingLight.main(LEDBreathingLight.java:29)

以下是正常的类库什么的
xiaotudou@xiaotudou:/opt/pi4j/lib$ gpio -v
gpio version: 2.60
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
Type: Pi 4B, Revision: 04, Memory: 0MB, Maker: Sony
* Device tree is enabled.
*--> Raspberry Pi 4 Model B Rev 1.4
* This Raspberry Pi supports user-level GPIO access.

xiaotudou@xiaotudou:/opt/pi4j/lib$ gpio readall
+-----+-----+---------+------+---+---Pi 4B--+---+------+---------+-----+-----+
| BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM |
+-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
| | | 3.3v | | | 1 || 2 | | | 5v | | |
| 2 | 8 | SDA.1 | ALT0 | 1 | 3 || 4 | | | 5v | | |
| 3 | 9 | SCL.1 | ALT0 | 1 | 5 || 6 | | | 0v | | |
| 4 | 7 | GPIO. 7 | IN | 1 | 7 || 8 | 1 | ALT5 | TxD | 15 | 14 |
| | | 0v | | | 9 || 10 | 1 | ALT5 | RxD | 16 | 15 |
| 17 | 0 | GPIO. 0 | IN | 0 | 11 || 12 | 0 | IN | GPIO. 1 | 1 | 18 |
| 27 | 2 | GPIO. 2 | IN | 0 | 13 || 14 | | | 0v | | |
| 22 | 3 | GPIO. 3 | IN | 0 | 15 || 16 | 0 | IN | GPIO. 4 | 4 | 23 |
| | | 3.3v | | | 17 || 18 | 0 | IN | GPIO. 5 | 5 | 24 |
| 10 | 12 | MOSI | ALT0 | 0 | 19 || 20 | | | 0v | | |
| 9 | 13 | MISO | ALT0 | 0 | 21 || 22 | 0 | IN | GPIO. 6 | 6 | 25 |
| 11 | 14 | SCLK | ALT0 | 0 | 23 || 24 | 1 | OUT | CE0 | 10 | 8 |
| | | 0v | | | 25 || 26 | 1 | OUT | CE1 | 11 | 7 |
| 0 | 30 | SDA.0 | IN | 1 | 27 || 28 | 1 | IN | SCL.0 | 31 | 1 |
| 5 | 21 | GPIO.21 | IN | 1 | 29 || 30 | | | 0v | | |
| 6 | 22 | GPIO.22 | IN | 1 | 31 || 32 | 0 | IN | GPIO.26 | 26 | 12 |
| 13 | 23 | GPIO.23 | IN | 0 | 33 || 34 | | | 0v | | |
| 19 | 24 | GPIO.24 | IN | 0 | 35 || 36 | 0 | IN | GPIO.27 | 27 | 16 |
| 26 | 25 | GPIO.25 | IN | 0 | 37 || 38 | 0 | IN | GPIO.28 | 28 | 20 |
| | | 0v | | | 39 || 40 | 0 | IN | GPIO.29 | 29 | 21 |
+-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
| BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM |
+-----+-----+---------+------+---+---Pi 4B--+---+------+---------+-----+-----+

收藏 ♥ 感谢

Spoony 小组长 2020-09-05

这类问题建议通过百度错误日志去找解决方法

小土豆 65cm 2020-09-05

@Spoony 找了，没解决才来这的

小土豆 65cm 2020-09-05

@Spoony 弄好了，改的源码，加载的*.so文件不是64位的原因。

Spoony 小组长 2020-09-05

@小土豆谢谢反馈
https://talk.quwj.com/topic/1471

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