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JAVA-18264 Update article "A Guide to MongoDB with Java" (#13466)

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* JAVA-18264 Update article "A Guide to MongoDB with Java"

* JAVA-18264 Update with suggestion

* JAVA-18264 Additional updates

* JAVA-18264 Format pom.xml

---------

Co-authored-by: timis1 <noreplay@yahoo.com>
This commit is contained in:
timis1
2023-02-27 12:38:14 +02:00
committed by GitHub
parent 5bc3c69737
commit b161aeec27
20 changed files with 222 additions and 224 deletions
Download Patch File Download Diff File Expand all files Collapse all files
persistence-modules/java-mongodb/src/main/java/com/baeldung/mongo/CollectionExistence.java
+6 -6
View File
@@ -4,8 +4,8 @@ import java.util.ArrayList;
import org.bson.Document;
import com.mongodb.DB;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
@@ -18,7 +18,7 @@ public class CollectionExistence {
public static void setUp() {
if (mongoClient == null) {
mongoClient = new MongoClient("localhost", 27017);
mongoClient = MongoClients.create("mongodb://localhost:27017");
}
databaseName = "baeldung";
testCollectionName = "student";
@@ -26,9 +26,9 @@ public class CollectionExistence {
public static void collectionExistsSolution() {
DB db = mongoClient.getDB(databaseName);
MongoDatabase db = mongoClient.getDatabase(databaseName);
System.out.println("collectionName " + testCollectionName + db.collectionExists(testCollectionName));
System.out.println("collectionName " + testCollectionName + db.listCollectionNames().into(new ArrayList<>()).contains(testCollectionName));
}
@@ -62,7 +62,7 @@ public class CollectionExistence {
MongoCollection<Document> collection = database.getCollection(testCollectionName);
System.out.println(collection.count());
System.out.println(collection.countDocuments());
}
persistence-modules/java-mongodb/src/main/java/com/baeldung/mongo/objectid/RetrieveIdExample.java
+3 -2
View File
@@ -5,7 +5,8 @@ import java.util.Date;
import org.bson.Document;
import org.bson.types.ObjectId;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
@@ -13,7 +14,7 @@ public class RetrieveIdExample {
public static void main(String[] args) {
try ( MongoClient mongoClient = new MongoClient("localhost", 27017) ) {
try ( MongoClient mongoClient = MongoClients.create("mongodb://localhost:27017") ) {
MongoDatabase database = mongoClient.getDatabase("myMongoDb");
MongoCollection<Document> collection = database.getCollection("example");
persistence-modules/java-mongodb/src/main/java/com/baeldung/mongo/update/MultipleFieldsExample.java
+3 -2
View File
@@ -3,7 +3,8 @@ package com.baeldung.mongo.update;
import org.bson.Document;
import com.mongodb.BasicDBObject;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.result.UpdateResult;
@@ -16,7 +17,7 @@ public class MultipleFieldsExample {
// Connect to cluster (default is localhost:27017)
//
MongoClient mongoClient = new MongoClient("localhost", 27017);
MongoClient mongoClient = MongoClients.create("mongodb://localhost:27017");
MongoDatabase database = mongoClient.getDatabase("baeldung");
MongoCollection<Document> collection = database.getCollection("employee");
persistence-modules/java-mongodb/src/main/java/com/baeldung/mongo/update/UpdateFields.java
+3 -3
View File
@@ -2,7 +2,8 @@ package com.baeldung.mongo.update;
import org.bson.Document;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.model.Filters;
@@ -83,10 +84,9 @@ public class UpdateFields {
public static void setup() {
if (mongoClient == null) {
mongoClient = new MongoClient("localhost", 27017);
mongoClient = MongoClients.create("mongodb://localhost:27017");
database = mongoClient.getDatabase("baeldung");
collection = database.getCollection("student");
}
}
persistence-modules/java-mongodb/src/main/java/com/baeldung/mongo/update/UpdateMultipleFields.java
+12 -11
View File
@@ -2,7 +2,8 @@ package com.baeldung.mongo.update;
import org.bson.Document;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.model.Filters;
@@ -16,19 +17,19 @@ public class UpdateMultipleFields {
//
// Connect to cluster
//
try (MongoClient mongoClient = MongoClients.create("mongodb://localhost:27007");) {
MongoDatabase database = mongoClient.getDatabase("baeldung");
MongoCollection<Document> collection = database.getCollection("employee");
MongoClient mongoClient = new MongoClient("localhost", 27007);
MongoDatabase database = mongoClient.getDatabase("baeldung");
MongoCollection<Document> collection = database.getCollection("employee");
//
// Update query
//
//
// Update query
//
UpdateResult updateResult = collection.updateMany(Filters.eq("employee_id", 794875), Updates.combine(Updates.set("department_id", 4), Updates.set("job", "Sales Manager")));
UpdateResult updateResult = collection.updateMany(Filters.eq("employee_id", 794875), Updates.combine(Updates.set("department_id", 4), Updates.set("job", "Sales Manager")));
System.out.println("updateResult:- " + updateResult);
System.out.println("updateResult:- " + updateResult.getModifiedCount());
System.out.println("updateResult:- " + updateResult);
System.out.println("updateResult:- " + updateResult.getModifiedCount());
}
}