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以下代码在Windows 10 64位计算机上作为jar文件运行时工作正常但是当我将jar文件复制到RPI时，它始终生成错误消息错误。我尝试了从上面的链接使用JAVAW的建议但是在RPI上找不到命令。 IOW，无法在RPI上正确计算校验和。有关如何解决此问题的任何建议吗？

int messageBody[] = new int[(messageLen / 2) - 2];
checkSum = 0;
            for (int charPtr = 2; charPtr < messageLen; ) {
                firstChar = theMessage.charAt(charPtr++);
                secondChar = theMessage.charAt(charPtr++);
                theValue = ((firstChar >= 'A' ? (firstChar - 'A') + 10 : (firstChar - '0')) << 4)
                        | (secondChar >= 'A' ? (secondChar - 'A') + 10 : (secondChar - '0'));

                if (messagePtr < messageBody.length) {
                    checkSum += theValue;
                    messageBody[messagePtr++] = theValue;
                    continue;
                }
                // Compute checksum

                checkSum = (-checkSum & 0xff);
                if (checkSum != theValue) {
                    System.err.println(System.lineSeparator() + "Check sum on received UPB packet failed -- should be " + checkSum + " but received as " + theValue);
                    System.err.println(System.lineSeparator() +"   BAD MESSAGE[" + theMessage + "], " + theMessage.length() + " bytes");
                    return;
                }
            }

Answer 1

只有我想到的是不同的字符串编码...

Answer 2

用32/64位编写的java中的本机代码不可移植，我们需要在目标环境中重新编译。

参考网址 http://www.oracle.com/technetwork/java/hotspotfaq-138619.html#64bit_native_porting

嗨Grogi＆amp;鲍勃S，感谢您的投入。

在Windows 64位上编译Java jar并在RPI 32位上执行它

2 个答案: