Parse a JSON to object JAVA without Root

Question

The response of my service ALFRESCO REST is:

[
{
"role": "SiteManager",
"authority":
{
    "authorityType": "USER",
    "fullName": "admin",
    "userName": "admin",
    "firstName": "Administrator",
    "lastName": "",
    "url": "\/alfresco\/service\/api\/people\/admin"
},
"url": "\/alfresco\/service\/api\/sites\/test3\/memberships\/admin"
}
,
{
"role": "SiteConsumer",
"authority":
{
    "authorityType": "GROUP",
    "shortName": "jamalgg",
    "fullName": "GROUP_jamalgg",
    "displayName": "jamalgg",
    "url": "\/alfresco\/service\/api\/groups\/jamalgg"
},
"url": "\/alfresco\/service\/api\/sites\/test3\/memberships\/GROUP_jamalgg"
}
,
{
"role": "SiteManager",
"authority":
{
    "authorityType": "GROUP",
    "shortName": "ALFRESCO_ADMINISTRATORS",
    "fullName": "GROUP_ALFRESCO_ADMINISTRATORS",
    "displayName": "ALFRESCO_ADMINISTRATORS",
    "url": "\/alfresco\/service\/api\/groups\/ALFRESCO_ADMINISTRATORS"
},
"url": "\/alfresco\/service\/api\/sites\/test3\/memberships\/GROUP_ALFRESCO_ADMINISTRATORS"
}
]

And I want to parse to list of object:

List<Memberships > listMemberships;

public class Memberships {
private String role;
private List<Authority> listAuthority ;
private String url;
}
public class Authority {
private String  authorityType;
private String  shortName;
private String  fullName;
private String  displayName;
private String  url;
}

I think that there are two solutions:

how to add the tag Memberships to JSON result for encapsulates the whole.
how to parse JSON result directly to my list

Thanks

score 4 · Accepted Answer · edited May 23 '17 at 12:06

4

As answered in a-better-java-json-library I would use the google-gson library.

edited May 23 '17 at 12:06

Community

1
1

answered Dec 08 '11 at 15:14

ozOli

1,414
1
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and there is even a example here: http://stackoverflow.com/questions/1688099/converting-json-to-java/1688182#1688182 – ozOli Dec 08 '11 at 15:23

score 1 · Answer 2 · edited Dec 13 '11 at 11:29

1

Thank you Ozoli. The answer to my question is:

Type targetType = new TypeToken<Collection<Memberships>>() {}.getType();
List<Memberships> list = (List<Memberships>)  new Gson().fromJson(renduJson,targetType);

edited Dec 13 '11 at 11:29

eeerahul

1,629
4
27
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answered Dec 13 '11 at 11:25

user1087686

13
3

score 0 · Answer 3 · answered Dec 12 '11 at 14:51

You can also use http://jsongen.byingtondesign.com/ to generate java code from json response and then use jackson library ( http://jackson.codehaus.org/ ) to bind that response data to your object(s):

ObjectMapper mapper = new ObjectMapper();
User user = mapper.readValue(new File("c:\\user.json"), User.class);

score 0 · Answer 4 · answered Dec 13 '11 at 11:30

0

sorry for not formatting code

Type targetType = new TypeToken<Collection<Memberships>>() {}.getType();
List<Memberships> list = (List<Memberships>)new Gson().fromJson(rendu,targetType);

answered Dec 13 '11 at 11:30

user1087686

13
3

Parse a JSON to object JAVA without Root

4 Answers4