将字节数组从 PLC 转换为 JSON 或 Java 对象

Question

Is there a way to get a json or Java object out of an byte stream?

If the structure in the plc looks like that

Data
  - id       int
  - pos      array[0..3] of int
  - time     dint

id=5
pos[0]=1
pos[1]=2
pos[2]=3
pos[3]=4
time = 5

I would get a bytearray of [0,5,0,1,0,2,0,3,0,4,0,0,0,5]

Now I want a Json out of this like

{
  id:5,
  pos:[1,2,3,4],
  time:5
}

The Deserialization Process needs to know the Datatypes and the Array lengths . Is there any framework which supports things like that?

Answer 1

JSON 只是文本，因此您可以将 JSON 对象转换为字符串，传输该字符串，然后将其转换回您正在使用的任何 JSON 库数据结构。