java傑克遜：從url rest網絡服務獲取作為json的pojo（帶有內部pojo），並將其映射回pojo

Question

我正在使用傑克遜，情況是：

1. 在客戶端（Android）中生成對Web服務的url調用
2. Web服務將“ complex pojo”（具有類成員作為其他pojo）返回為json
3. 返回客戶端將json映射到pojo

盡管我四處搜尋並找出以下起點，但我不知道如何完成此代碼以使事情正常進行，但是后來我完全堆砌了，需要幫助...

1. “復雜的pojo”：

    public class MyPojo { private List<MyOtherPojo> myOtherPojo; private List<HashMap<String, String>> listOfMaps; private Map<String, String> map; //Constructors, getters & setters } 

2. 客戶端代碼：

    String wsURI = "server.com/myservice?param1=a&param2=b"; try { URL url = new URL(wsURI); URLConnection connection = url.openConnection(); BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream())); StringBuilder sbuilder = new StringBuilder(); String aux = ""; while ( (aux = in.readLine()) != null) { sbuilder.append(aux); } ObjectMapper mapper = new ObjectMapper(); //TODO get myPojo object from his representation as string at sbuilder.toString(); myPojo = ???; } catch (Exception e) {} 

Answer 1

解決方案感謝@peeskillet：

MyPojo myPojo = mapper.readValue(connection.getInputStream(), MyPojo.class);