java jackson : get from url rest web service call pojo's (with inner pojo's) as json and map them back to pojo

Question

我使用的是jackson，场景是:

1. 在客户端 (Android) 中生成对 Web 服务的 URL 调用
2. Web 服务以 json 形式返回“complex pojo”(具有与其他 pojo 相同的类成员)
3. 返回客户端将 json 映射到 pojo

我不知道如何完成这段代码以使事情正常工作，尽管我进行了全面搜索并找出了以下起点，但后来我完全堆积起来了，我需要帮助......

1. “复杂的 pojo”:

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

2. 客户端代码:

   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

解决方案感谢@peeskillet:

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