1
首先,请注意我的问题非常类似于: Jackson xml and json root element 但只是略有不同,我只想为JSON使用单个根元素。杰克逊的JSON/XML根元素不一样
这里是我的UserList类:
@XmlRootElement(name = "users")
@JsonRootName(value = "users")
@JsonTypeName(value = "users")
public class UserList {
// Tried all of these:
// @JacksonXmlElementWrapper(localName = "user")
// @JacksonXmlProperty(localName = "user")
// @JsonUnwrapped
// @JsonTypeInfo(include = JsonTypeInfo.As.WRAPPER_OBJECT, use = JsonTypeInfo.Id.NONE /**.NAME */)
// @JsonProperty("users") // <-- Sets both XML and JSON to 'users'
@JacksonXmlElementWrapper(useWrapping = false) // <-- This gets rid of duplicate 'users' in XML
public List<User> user = new ArrayList<User>();
public UserList() {}
}
这里是我的用户等级:
@XmlRootElement(name = "user")
@JsonRootName(value = "user")
@JsonInclude(Include.NON_NULL)
@XmlAccessorType(XmlAccessType.FIELD)
public class User {
private int userId;
private String userName;
private String password;
private long passwordUpdated;
private long passwordExpire;
private String sessionKey;
public User() {}
getters and setters here ...
}
这是我所希望的JSON(目前我得到的“用户”而不是“用户”与当前测试代码):
{
"users": [{
"userId": 1,
"userName": "[email protected]",
"passwordUpdated": 0,
"passwordExpire": 0,
"sessionKey": "key"
}, {
"userId": 2,
"userName": "[email protected]",
"passwordUpdated": 0,
"passwordExpire": 0,
"sessionKey": "key"
}]
}
这是我期望的XML(这是我用当前测试代码得到的):
<?xml version="1.0" encoding="UTF-8"?>
<users>
<user>
<userId>1</userId>
<userName>[email protected]</userName>
<passwordUpdated>0</passwordUpdated>
<passwordExpire>0</passwordExpire>
<sessionKey>key</sessionKey>
</user>
<user>
<userId>2</userId>
<userName>[email protected]</userName>
<passwordUpdated>0</passwordUpdated>
<passwordExpire>0</passwordExpire>
<sessionKey>key</sessionKey>
</user>
</users>
这里是我的测试代码:
{
User user1 = new User();
user1.setUserId(1);
user2.setUserName("[email protected]");
user1.setPasswordExpire(0);
user1.setPasswordUpdated(0);
user1.setSessionKey("key");
User user2 = new User();
user2.setUserId(1);
user2.setUserName("[email protected]");
user2.setPasswordExpire(0);
user2.setPasswordUpdated(0);
user2.setSessionKey("key");
UserList userList = new UserList();
userList.user.add(user1);
userList.user.add(user2);
String json = MapperUtils.modelToJson(userList);
String xml = MapperUtils.modelToXml(userList);
}
public class MapperUtils {
final static ObjectMapper jsonMapper = new ObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
final static ObjectMapper xmlMapper = new XmlMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
public static String modelToJson(final Object object) throws IOException {
return jsonMapper.writeValueAsString(object);
}
public static String modelToXml(final Object object) throws IOException {
return xmlMapper.writer().writeValueAsString(object);
}
}
我的问题是,我想我的JSON的根元素是“用户”而不是“用户”。 任何帮助,将不胜感激。