python jpype从java类的实例获取值
我有一个类似的代码python jpype从java类的实例获取值,java,python,jpype,Java,Python,Jpype,我有一个类似的代码 message = "abc".encode() messageDigest = java.security.MessageDigest.getInstance("SHA-256") messageDigest.update(message) hashdata = messageDigest.digest() 在这里,当我打印hashdata时,我得到 但我需要它的价值。如何获取其值?试试这个 for (int i = 0; i < hash.length; i++)
message = "abc".encode()
messageDigest = java.security.MessageDigest.getInstance("SHA-256")
messageDigest.update(message)
hashdata = messageDigest.digest()
在这里,当我打印hashdata
时,我得到
但我需要它的价值。如何获取其值?试试这个
for (int i = 0; i < hash.length; i++) {
if ((0xff & hash[i]) < 0x10) {
hexString.append("0"
+ Integer.toHexString((0xFF & hash[i])));
} else {
hexString.append(Integer.toHexString(0xFF & hash[i]));
}
}
for(int i=0;i
目前,我们不支持Java字节数组的\uuuuu字节
运算符,但它很容易通过自定义程序添加
import jpype
from jpype import java
# Add the customizer before starting the JVM
@jpype.JImplementationFor('byte[]')
class ByteConverter(object):
def __bytes__(self):
return bytes(self[:])
# Now start the JVM
jpype.startJVM(convertStrings=False)
# Perform Java operations
message = "abc".encode()
messageDigest = java.security.MessageDigest.getInstance("SHA-256")
messageDigest.update(message)
hashdata = messageDigest.digest()
# We got back a Java byte[] and we would like a Python bytes
print(bytes(hashdata))
像这样使用<代码>字符串hashdata=新字符串(messageDigest.digest())代码>