| | coll.find(Filters.eq("title", "Hamlet")).first(); |
| { title: 'Hamlet', type: 'movie', ... } |
|
| | coll.find(Filters.eq("year", 2005)) |
| [ | | { title: 'Christmas in Boston', year: 2005, ... }, | | { title: 'Chicken Little', year: 2005, ... }, | | ... | | ] |
|
| | coll.insertOne(new Document("title", "Jackie Robinson")); |
|
Insert Multiple Documents
| | coll.insertMany( | | Arrays.asList( | | new Document("title", "Dangal").append("rating", "Not Rated"), | | new Document("title", "The Boss Baby").append("rating", "PG"))); |
|
| | coll.updateOne( | | Filters.eq("title", "Amadeus"), | | Updates.set("imdb.rating", 9.5)); |
| { title: 'Amadeus', imdb: { rating: 9.5, ... } } |
|
Update Multiple Documents
| | coll.updateMany( | | Filters.eq("year", 2001), | | Updates.inc("imdb.votes", 100)); |
| [ | | { title: 'A Beautiful Mind', year: 2001, imdb: { votes: 826257, ... }, | | { title: 'Shaolin Soccer', year: 2001, imdb: { votes: 65442, ... }, | | ... | | ] |
|
Update an Array in a Document
| | coll.updateOne( | | Filters.eq("title", "Cosmos"), | | Updates.push("genres", "Educational")); |
| { title: 'Cosmos', genres: [ 'Documentary', 'Educational' ], ...} |
|
| | coll.replaceOne( | | Filters.and(Filters.eq("name", "Deli Llama"), Filters.eq("address", "2 Nassau St")), | | new Document("name", "Lord of the Wings").append("zipcode", 10001)); |
| { name: 'Lord of the Wings', zipcode: 10001 } |
|
| | coll.deleteOne(Filters.eq("title", "Congo")); |
|
Delete Multiple Documents
| | coll.deleteMany(Filters.regex("title", "^Shark.*")); |
|
| | coll.bulkWrite( | | Arrays.asList( | | new InsertOneModel<Document>( | | new Document().append("title", "A New Movie").append("year", 2022)), | | new DeleteManyModel<Document>( | | Filters.lt("year", 1970)))); |
|
| | coll.watch(Arrays.asList( | | Aggregates.match(Filters.gte("year", 2022)))); |
|
Access Data from a Cursor Iteratively
| | MongoCursor<Document> cursor = coll.find().cursor(); | | while (cursor.hasNext()) { | | System.out.println(cursor.next().toJson()); | | } |
| [ | | { title: '2001: A Space Odyssey', ... }, | | { title: 'The Sound of Music', ... }, | | ... | | ] |
|
Access Results from a Query as an Array
| | List<Document> resultList = new ArrayList<Document>(); | | coll.find().into(resultList); |
| [ | | { title: '2001: A Space Odyssey', ... }, | | { title: 'The Sound of Music', ... }, | | ... | | ] |
|
| | coll.countDocuments(Filters.eq("year", 2000)); |
|
List the Distinct Documents or Field Values | | coll.distinct("year", Integer.class); |
| [ 1891, 1893, 1894, 1896, 1903, ... ] |
|
Limit the Number of Documents Retrieved
| | [ | | { title: 'My Neighbor Totoro', ... }, | | { title: 'Amélie', ... } | | ] |
|
| | coll.find(Filters.regex("title", "^Rocky")).skip(2); |
| [ | | { title: 'Rocky III', ... }, | | { title: 'Rocky IV', ... }, | | { title: 'Rocky V', ... } | | ] |
|
Sort the Documents When Retrieving Them
| | coll.find().sort(Sorts.ascending("year")); |
| [ | | { title: 'Newark Athlete', year: 1891, ... }, | | { title: 'Blacksmith Scene', year: 1893, ...}, | | { title: 'Dickson Experimental Sound Film', year: 1894}, | | ... | | ] |
|
Project Document Fields When Retrieving Them
| | coll.find().projection(Projections.fields( | | Projections.excludeId(), | | Projections.include("year", "imdb"))); |
| [ | | { year: 2012, imdb: { rating: 5.8, votes: 230, id: 8256 }}, | | { year: 1985, imdb: { rating: 7.0, votes: 447, id: 1654 }}, | | ... | | ] |
|
| | coll.createIndex( | | Indexes.compoundIndex( | | Indexes.ascending("title"), | | Indexes.descending("year"))); |
|
| | | coll.find(Filters.text("zissou")); |
| [ | | { title: 'The Life Aquatic with Steve Zissou', ... } | | ] |
|
Install the Driver Dependency with Maven | | <dependencies> | | <dependency> | | <groupId>org.mongodb</groupId> | | <artifactId>mongodb-driver-sync</artifactId> | | <version>4.7.2</version> | | </dependency> | | </dependencies> |
|
Install the Driver Dependency with Gradle | | dependencies { | | implementation 'org.mongodb:mongodb-driver-sync:4.7.2' | | } |
|