How to get from HttpResponse java object class?-CodePudding

I have a method that receives a HttpResponse.He receives a response from the server in the form of a JSON.

 public static PostDTO getRequest(String url, String path) {
   
    HttpResponse<JsonNode> response = Unirest.get(url   path).asJson();
    postDTO.setStatus(response.getStatus());
    /*
     Here I have to write code that makes from HttpResponse<JsonNode> 
     response PostDTO
    */
    return postDTO;
}

In a variable response i have json.Now I need to somehow convert this JSON into PostDTO.

public class PostDTO {

private int status;
private List<PostPojo> posts;

public int getStatus() {
    return status;
}

public void setStatus(int status) {
    this.status = status;
}

public List<PostPojo> getPosts() {
    return posts;
}

public void setPosts(List<PostPojo> posts) {
    this.posts = posts;
}
}

PostPojo class

public class PostPojo {

private int userId;
private int id;
private String title;
private String body;

public PostPojo() {
}

public PostPojo(int userId, int id, String title, String body) {
    this.userId = userId;
    this.id = id;
    this.title = title;
    this.body = body;
}

public int getUserId() {
    return userId;
}

public void setUserId(int userId) {
    this.userId = userId;
}

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public String getTitle() {
    return title;
}

public void setTitle(String title) {
    this.title = title;
}

public String getBody() {
    return body;
}

public void setBody(String body) {
    this.body = body;
}


@Override
public String toString() {
    return "PostModel{"  
            "userId="   userId  
            ", id="   id  
            ", title='"   title   '\''  
            ", body='"   body   '\''  
            '}';
}
}

Tell me how to get from HttpResponse and serialize it into PostDTO?I do not understand what needs to be written to convert HttpResponse in PostDTO.

CodePudding user response：

Have you heard about Gson?

Add Gson to your depndencys: https://search.maven.org/artifact/com.google.code.gson/gson/2.8.9/jar

And you can simply do this:

Gson gson = new GsonBuilder().create();
HttpEntity entity = response.getEntity();
String jsonString = EntityUtils.toString(entity);
PostDTO postDTO = gson.fromJson(jsonString, PostDTO.getClass());

If you want to know more about it: https://www.baeldung.com/gson-deserialization-guide