MongoTemplate按日期转换查找

Question

我想转换以下查询:

{ "cd" : { "$lte" : ISODate("2013-06-30T09:12:29Z") , "$gte" : ISODate("2013-06-11T09:12:29Z")}}

与MongoTemplate和Query一起使用.

目前我正在做和接近:

 Query query = new Query();
 query.addCriteria(Criteria.where("cd").lte(request.getTo()).gte(request.getFrom()));
 mongoTemplate.find(query,MyDesiredEntity.class)

但是当第一个返回大约15时,上面的查询没有返回结果(request.getTo和request.getFrom是java.util.Date).

有没有办法用org.springframework.data.mongodb.core.query.Query实现这一目标

Answer 1

我通过颠倒lte和gte调用来实现这一点.我写了一个测试来证明它有效:

@Test
public void shouldBeAbleToQueryBetweenTwoDates() throws Exception {
    // setup
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss'Z'");

    MongoTemplate mongoTemplate = new MongoTemplate(new Mongo(), "TheDatabase");
    DBCollection collection = mongoTemplate.getCollection("myObject");
    // cleanup
    collection.drop();

    // date that should match
    Date expectedDate = dateFormat.parse("2013-06-12T00:00:00Z");
    collection.insert(new BasicDBObject("cd", expectedDate));
    // date that should not match (it's last year)
    collection.insert(new BasicDBObject("cd", dateFormat.parse("2012-06-12T00:00:00Z")));

    // create and execute the query
    final Date to = dateFormat.parse("2013-06-30T09:12:29Z");
    final Date from = dateFormat.parse("2013-06-11T09:12:29Z");

    Query query = new Query();
    query.addCriteria(Criteria.where("cd").gte(from).lte(to));

    // check it returned what we expected
    List<MyObject> basicDBObjects = mongoTemplate.find(query, MyObject.class);
    Assert.assertEquals(1, basicDBObjects.size());
    Assert.assertEquals(expectedDate, basicDBObjects.get(0).cd);
}

笔记:

• 这是TestNG而不是JUnit
• 我正在使用SimpleDateFormat只是为了使日期的测试更容易,并且(可能)更具可读性

需要注意的主要事项是:

query.addCriteria(Criteria.where("cd").gte(from).lte(to));

之前我颠倒的顺序lte和gte查询是返回什么.