sample mongodb

http://city81.blogspot.co.uk/2012/07/using-spring-data-to-access-mongodb.html

SpringMongoConfig.java

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.data.document.mongodb.MongoTemplate;

import org.springframework.data.document.mongodb.config.AbstractMongoConfiguration;

import com.mongodb.Mongo;

@Configuration

public class SpringMongoConfig extends AbstractMongoConfiguration {

@Override

public @Bean Mongo mongo() throws Exception {

return new Mongo("localhost");

}

@Override

public @Bean MongoTemplate mongoTemplate() throws Exception {

return new MongoTemplate(mongo(),"blog","users");

}

}

MongoApp.java (Main)

import java.net.UnknownHostException;

import com.mongodb.BasicDBObject;

import com.mongodb.DB;

import com.mongodb.DBCollection;

import com.mongodb.DBCursor;

import com.mongodb.Mongo;

import com.mongodb.MongoException;

public class MongoApp {

public static void main(String[] args) throws UnknownHostException {

try {

// connect to mongoDB

Mongo mongo = new Mongo("localhost", 27017);

// if database doesn't exists, mongoDB will create it

DB db = mongo.getDB("blog");

// Get collection from MongoDB, database named "mydb"

// if collection doesn't exists, mongoDB will create it

DBCollection collection = db.getCollection("users");

// create a document to store attributes

BasicDBObject document = new BasicDBObject();

document.get("_id");

// save it into collection named "myCollection"

System.out.println( collection.find());

DBCursor cur = collection.find();

while(cur.hasNext()) {

    System.out.println(cur.next());

}

// search query

} catch (MongoException e) {

e.printStackTrace();

}

}

}

User.java

public class User {

private String id;

private String password;

public User(){};

public User(String id, String password) {

super();

this.id = id;

this.password = password;

}

public String getId() {

return id;

}

public void setId(String id) {

this.id = id;

}

/**

     * @return the password

     */

    public String getPassword() {

        return password;

    }

    /**

     * @param password the password to set

     */

    public void setPassword(String password) {

        this.password = password;

    }

    @Override

public String toString() {

return "User [id=" + id + ", firstname=" + password +  "]";

}

}

pom.xml

Just change the groupID by your package name

<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/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId></groupId>

<artifactId>SpringExample</artifactId>

<packaging>jar</packaging>

<version>1.0</version>

<name>SpringMongoExample</name>

<url>http://maven.apache.org</url>

<repositories>

<repository>

<id>spring-milestone</id>

<name>Spring Maven MILESTONE Repository</name>

<url>http://maven.springframework.org/milestone</url>

</repository>

</repositories>

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.10</version>

<scope>test</scope>

</dependency>

<!-- Spring framework -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-core</artifactId>

<version>3.0.5.RELEASE</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context</artifactId>

<version>3.0.5.RELEASE</version>

</dependency>

<!-- mongodb java driver -->

<dependency>

<groupId>org.mongodb</groupId>

<artifactId>mongo-java-driver</artifactId>

<version>2.5.2</version>

</dependency>

<dependency>

<groupId>org.springframework.data</groupId>

<artifactId>spring-data-mongodb</artifactId>

<version>1.0.0.M2</version>

</dependency>

<dependency>

<groupId>cglib</groupId>

<artifactId>cglib</artifactId>

<version>2.2</version>

</dependency>

</dependencies>

<build>

<plugins>

<plugin>

<artifactId>maven-compiler-plugin</artifactId>

<configuration>

<source>1.6</source>

<target>1.6</target>

</configuration>

</plugin>

</plugins>

</build>

</project>