Java Spring数据mongo模板返回时间戳而不是普通对象id
我在使用SpringDataMongo模板从MongoDB检索JSON响应时面临问题。响应不是检索文档的对象id,而是带有时间戳。 以下是存储在mongo db中的JSON负载:Java Spring数据mongo模板返回时间戳而不是普通对象id,java,mongodb,spring-data,spring-data-mongodb,nosql,Java,Mongodb,Spring Data,Spring Data Mongodb,Nosql,我在使用SpringDataMongo模板从MongoDB检索JSON响应时面临问题。响应不是检索文档的对象id,而是带有时间戳。 以下是存储在mongo db中的JSON负载: { "_id" : ObjectId("5457d80a59b6460a50f6cef1"), "menuId" : 123, "menuItemId" : 723, "lastUpdatedDate" : "2014-10-25T20:10:10+0000", "menuIte
{
"_id" : ObjectId("5457d80a59b6460a50f6cef1"),
"menuId" : 123,
"menuItemId" : 723,
"lastUpdatedDate" : "2014-10-25T20:10:10+0000",
"menuItemJson" : {
....
}
}
{
"id": {
"time": 1415043082000,
"date": 1415043082000,
"timeSecond": 1415043082,
"inc": 1358352113,
"machine": 1505117706,
"new": false,
"timestamp": 1415043082
},
"menuId": 123,
"menuItemId": 723,
"lastUpdatedDate": "2014-10-25T20:10:10+0000",
"menuItemJson": {
......
}
}
以下是来自mongo db的json响应:
{
"_id" : ObjectId("5457d80a59b6460a50f6cef1"),
"menuId" : 123,
"menuItemId" : 723,
"lastUpdatedDate" : "2014-10-25T20:10:10+0000",
"menuItemJson" : {
....
}
}
{
"id": {
"time": 1415043082000,
"date": 1415043082000,
"timeSecond": 1415043082,
"inc": 1358352113,
"machine": 1505117706,
"new": false,
"timestamp": 1415043082
},
"menuId": 123,
"menuItemId": 723,
"lastUpdatedDate": "2014-10-25T20:10:10+0000",
"menuItemJson": {
......
}
}
下面是我的Java POJO类,它是使用spring http消息转换器映射的:
import org.bson.types.ObjectId;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document(collection = "MenuItem")
public class MenuItemJsonCollection {
@Id
private ObjectId id;
private Integer menuId;
private Integer menuItemId;
....
}
以下是检索集合的my dao方法:
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
@Repository
public class MenuDaoImpl implements MenuDao {
@Autowired
private MongoTemplate mongoMenuOrderingTemplate;
@Override
public MenuItemJsonCollection fetchMenuItemById(Long menuItemId) {
Query query = new Query();
query.addCriteria(Criteria.where("id").is(menuItemId));
return mongoMenuOrderingTemplate.findOne(query, MenuItemJsonCollection.class, "MenuDb");
}
}
以下是控制器中的rest端点方法:
@Controller
public class MenuOrderController {
@Autowired
private MenuOrderService menuOrderService;
@RequestMapping(method = RequestMethod.GET, value = "/menuitems/{id}", produces = "application/json")
public ResponseEntity<MenuItemJsonCollection> getMenuItemByMenu(
@PathVariable("id") String menuItemId,
@RequestParam(value = "lastupdatedatetime", required = false) String lastUpdateDateTimeString) {
Long menuItemID = null;
try{
menuItemID = Long.parseLong(menuItemId);
}catch(Exception exe){
throw new ClassifiedsBadRequestException(ErrorMapping.INVALID_PAYLOAD.getErrorCode());
}
if (!ParamValidationUtil.validateNotNullOrEmptyParams(menuItemId) ) {
throw new ClassifiedsBadRequestException(ErrorMapping.MISSING_FIELD.getErrorCode());
} else{
MenuItemJsonCollection menuItem = menuOrderService.fetchMenuItemById(menuItemID, lastUpdateDateTimeString);
if (menuItem == null) {
return new ResponseEntity<>(HttpStatus.NO_CONTENT);
}
return new ResponseEntity<>(menuItem, HttpStatus.OK);
}
}
}
@控制器
公共类菜单控制器{
@自动连线
私有菜单服务菜单服务;
@RequestMapping(method=RequestMethod.GET,value=“/menuitems/{id}”,products=“application/json”)
公共响应getMenuItemByMenu(
@PathVariable(“id”)字符串菜单项id,
@RequestParam(value=“lastupdatedatetime”,required=false)字符串lastUpdateDateTimeString){
Long menuItemID=null;
试一试{
menuItemID=Long.parseLong(menuItemID);
}捕获(异常exe){
抛出新的ClassifiedsBadRequestException(ErrorMapping.INVALID_PAYLOAD.getErrorCode());
}
如果(!ParamValidationUtil.validateNotNullOrEmptyParams(menuItemId)){
抛出新的ClassifiedsBadRequestException(ErrorMapping.MISSING_FIELD.getErrorCode());
}否则{
MenuItemJsonCollection menuItem=menuOrderService.fetchMenuItemById(menuItemID,lastUpdateDateTimeString);
if(menuItem==null){
返回新的响应属性(HttpStatus.NO_内容);
}
返回新的响应状态(menuItem,HttpStatus.OK);
}
}
}
我应该怎么做才能只打印id而不是发送带有完整时间戳的响应
i、 e“id”:“5457d80a59b6460a50f6cef1”而不是整个时间戳
提前感谢。这里的问题是JSON响应的Jackson序列化。这些线程演示了如何连接自定义序列化程序: