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Added java-mongodb module (#978) 

* Made maven project.

* Added mongo driver dependencies.

* Added crud operations.

* Class rename

* Added tests
This commit is contained in:
Shubham Aggarwal 2017-01-09 22:20:14 +05:30 committed by maibin
parent 66917a2877
commit e27131f3a5
5 changed files with 178 additions and 4 deletions
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5
java-mongodb/.gitignore vendored Normal file
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.classpath
.project
.settings
target
build

44
java-mongodb/pom.xml Normal file
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<?xml version="1.0"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>java-mongodb</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<junit.version>4.12</junit.version>
<mongo.version>3.4.1</mongo.version>
<flapdoodle.version>1.11</flapdoodle.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>de.flapdoodle.embedmongo</groupId>
<artifactId>de.flapdoodle.embedmongo</artifactId>
<version>${flapdoodle.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>${mongo.version}</version>
</dependency>
</dependencies>
</project>

53
java-mongodb/src/main/java/com/baeldung/MongoExample.java Normal file
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package com.baeldung;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.MongoClient;
public class MongoExample {
public static void main( String[] args ) {
MongoClient mongoClient = new MongoClient("localhost", 27017);
DB database = mongoClient.getDB("myMongoDb");
// print existing databases
mongoClient.getDatabaseNames().forEach(System.out::println);
database.createCollection("customers", null);
// print all collections in customers database
database.getCollectionNames().forEach(System.out::println);
// create data
DBCollection collection = database.getCollection("customers");
BasicDBObject document = new BasicDBObject();
document.put("name", "Shubham");
document.put("company", "Baeldung");
collection.insert(document);
// update data
BasicDBObject query = new BasicDBObject();
query.put("name", "Shubham");
BasicDBObject newDocument = new BasicDBObject();
newDocument.put("name", "John");
BasicDBObject updateObject = new BasicDBObject();
updateObject.put("$set", newDocument);
collection.update(query, updateObject);
// read data
BasicDBObject searchQuery = new BasicDBObject();
searchQuery.put("name", "John");
DBCursor cursor = collection.find(searchQuery);
while (cursor.hasNext()) {
System.out.println(cursor.next());
}
// delete data
BasicDBObject deleteQuery = new BasicDBObject();
deleteQuery.put("name", "John");
collection.remove(deleteQuery);
}
}

72
java-mongodb/src/test/java/com/baeldung/AppTest.java Normal file
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package com.baeldung;
import static org.junit.Assert.assertEquals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.Mongo;
import de.flapdoodle.embedmongo.MongoDBRuntime;
import de.flapdoodle.embedmongo.MongodExecutable;
import de.flapdoodle.embedmongo.MongodProcess;
import de.flapdoodle.embedmongo.config.MongodConfig;
import de.flapdoodle.embedmongo.distribution.Version;
import de.flapdoodle.embedmongo.runtime.Network;
public class AppTest {
private static final String DB_NAME = "myMongoDb";
private MongodExecutable mongodExe;
private MongodProcess mongod;
private Mongo mongo;
private DB db;
private DBCollection collection;
@Before
public void setup() throws Exception {
// Creating Mongodbruntime instance
MongoDBRuntime runtime = MongoDBRuntime.getDefaultInstance();
// Creating MongodbExecutable
mongodExe = runtime.prepare(new MongodConfig(Version.V2_0_1, 12345,
Network.localhostIsIPv6()));
// Starting Mongodb
mongod = mongodExe.start();
mongo = new Mongo("localhost", 12345);
// Creating DB
db = mongo.getDB(DB_NAME);
// Creating collection Object and adding values
collection = db.getCollection("customers");
}
@After
public void teardown() throws Exception {
mongod.stop();
mongodExe.cleanup();
}
@Test
public void testAddressPersistance() {
BasicDBObject contact = new BasicDBObject();
contact.put("name", "John");
contact.put("company", "Baeldung");
// Inserting document
collection.insert(contact);
DBCursor cursorDoc = collection.find();
BasicDBObject contact1 = new BasicDBObject();
while (cursorDoc.hasNext()) {
contact1 = (BasicDBObject) cursorDoc.next();
System.out.println(contact1);
}
assertEquals(contact1.get("name"), "John");
}
}

8
pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
@ -175,6 +174,7 @@
<module>xml</module>
<module>xmlunit2</module>
<module>xstream</module>
</modules>
<module>java-mongodb</module>
</modules>
</project>
</project>