如何將多個元素放入java的byte []中

Question

如何將多個元素放入byte[]？我有以下3個元素：1）String data,2）String status和3）HashMap<String,String> headers，它們需要作爲字節數組傳遞給setContent(byte[] data)。下面是我想用以前的3個參數作爲輸入statusResult.setContent()代碼：

public void onSuccess(ClientResponse clientResponse){ 
     String data=clientResponse.getMessage(); 
     String status=String.valueOf(clientResponse.getStatus()); 
     HashMap<String,String> headers=clientResponse.getHeaders(); 

    // Now StatusResult is a class where we need to pass all this data,having only getters and 
    // setters for Content,so here in the next line i need to pass data,status and headers as 
    // a byte[] to setContent. 

     statusResult.setContent(byte[]); 
} 

有人可以幫我解決了這一點？

Answer 1

這是粗略的序列化。我會建議如下：

1. 創建封裝三個元素的類。
2. 確保類implementsserializable接口。
3. 使用下面的代碼[從this post]採取創建一個字節數組，你想，從字節數組讀取對象回（它，儘管你還沒有指定的要求，但需要提到的完整性）的緣故

ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
ObjectOutput out = null; 
try { 
    //Assuming that bos is the object to be seriaized 
    out = new ObjectOutputStream(bos); 
    out.writeObject(yourObject); 
    byte[] yourBytes = bos.toByteArray(); 
    ... 
} finally { 
    try { 
    if (out != null) { 
     out.close(); 
    } 
    } catch (IOException ex) { 
    // ignore close exception 
    } 
    try { 
    bos.close(); 
    } catch (IOException ex) { 
    // ignore close exception 
    } 
} 
//Create object from bytes: 

ByteArrayInputStream bis = new ByteArrayInputStream(yourBytes); 
ObjectInput in = null; 
try { 
    in = new ObjectInputStream(bis); 
    Object o = in.readObject(); 
    ... 
} finally { 
    try { 
    bis.close(); 
    } catch (IOException ex) { 
    // ignore close exception 
    } 
    try { 
    if (in != null) { 
     in.close(); 
    } 
    } catch (IOException ex) { 
    // ignore close exception 
    } 
}