针对你提出的“byte array must not be null”错误,我将从理解错误信息、排查原因、修改代码以及测试验证四个方面进行回答。 1. 理解错误信息 错误信息“byte array must not be null”直译为“字节数组不能为空”。这意味着在你的代码中,某个期望非空字节数组的地方接收到了一个空值(null)。这通常会导致程序...
if (byteArray == null || byteArray.length < 1) throw new IllegalArgumentException("this byteArray must not be null or empty"); final StringBuilder hexString = new StringBuilder(); for (int i = 0; i < byteArray.length; i++) { if ((byteArray[i] & 0xff) < 0x10)//0~F前面不...
at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) at org.springframework.web.servlet...
//Check converted string against original String System.out.println("Decoded String : " + s); 这种方式使用平台默认字符集...方法二:使用String类的静态方法valueOf() byte[] byteArray = {65, 66, 67, 68}; String str = String.valueOf(byteArray...(byteArray); 这些方法在将byte数组转换为字符...
TypeError:theJSONobject must be str,bytes or bytearray,not'dict' 由于data现在是一个字典,只需要用’’'符号将它转换成字符串就可以了。 但要知道loads()和jumps()这两个函数的具体用法: loads(param) 将文本字符串转换为json对象的函数,其函数名是load string 的缩写,意思是加载字符串。所以其参数param必须...
Only object references can be null; bytes can be zero, though, as you obviously know, and that's what you meant. In your code snippet, the loop is completely unnecessary; when you allocate the array, all the elements are guaranteed to be zero already. If you have an array whose element...
The following example defines a string array and attempts to convert each string to a Byte. Note that while a null string parses to zero, String.Empty throws a FormatException. Also note that while leading and trailing spaces parse successfully, formatting symbols, such as currency symbols, gro...
The conversion is not supported. OverflowException value represents a number that is less than SByte.MinValue or greater than SByte.MaxValue. Examples The following example attempts to convert each element in an object array to a signed byte. C# Copy object[] values = { true, -12, 163,...
}publicvoidsetmNumber(String mNumber){this.mNumber = mNumber; } } 解决 需要修改为在写入时使用: byte[] bytes=getBytesFromBitmap(bitmap);dest.writeInt(bytes.length);dest.writeByteArray(bytes); 在读取时使用: byte[] bytes=newbyte[parcel.readInt()]; parcel.readByteArray(bytes);...
a byte array containing the ASN.1 DER encoding of a NameConstraints extension to be used for checking name constraints. Only the value of the extension is included, not the OID or criticality flag. Can benull, in which case no name constraints check will be performed. ...