Database side -
Step 1: Download mongoDB from the following location : http://www.mongodb.org/downloads
Step 2: Create folder /data/db in your drive in which mongoDB is intalled.
Step 3: Run mongod located in bin folder. By default it will start listening on port 27017.
Application side -
Step 4: Add the following dependencies in your pom.xml.
<!-- Spring Data mongoDB Module -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>1.0.0.M2</version>
</dependency>
<!-- mongoDB Java Driver -->
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>2.5.2</version>
</dependency>
Step 5: Create a config file (e.g. spring-mongo-config.xml) in the resources folder and add the following:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mongo="http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/data/mongo
http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<mongo:mongo host="localhost" port="27017" />
<bean id="mongoTemplate"
class="org.springframework.data.document.mongodb.MongoTemplate">
<constructor-arg ref="mongo" />
<constructor-arg name="databaseName" value="company" />
<constructor-arg name="defaultCollectionName" value="employees" />
</bean>
</beans>
Step 6: Here is the SpringMongoExample class which connects to mongoDB and stores an employee object in the database:
package com.example.spring.mongo;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.GenericXmlApplicationContext;
import org.springframework.data.document.mongodb.MongoOperations;
import org.springframework.data.document.mongodb.query.Criteria;
import org.springframework.data.document.mongodb.query.Query;
import com.example.spring.mongo.model.Employee;
public class SpringMongoExample {
private MongoOperations mongoOperation;
public SpringMongoExample() {
ApplicationContext appContext = new GenericXmlApplicationContext("spring-mongo-config.xml");
MongoOperations mongoOperation = (MongoOperations) appContext.getBean("mongoTemplate");
this.mongoOperation = mongoOperation;
}
public static void main(String[] args) {
SpringMongoExample springMongoExample = new SpringMongoExample();
Employee employee = springMongoExample.createEmployeeObject();
springMongoExample.saveEmployee(employee);
springMongoExample.findEmployee();
}
/**
* Create data model
*
* @return employee
*/
private Employee createEmployeeObject() {
Employee employee = new Employee();
employee.setId(543);
employee.setName("Ranjan Kumar");
employee.setDepartment("Lab");
employee.setDesignation("Architect");
return employee;
}
/**
* Save new employee in the database
*/
private void saveEmployee(Employee employee) {
mongoOperation.save("EmployeeDetails", employee);
}
/**
* Find the newly added employee from the database
*/
private Employee findEmployee() {
Query query = new Query(Criteria.where("designation").is("Architect"));
Employee storedEmployee = mongoOperation.findOne("EmployeeDetails", query, Employee.class);
System.out.println("stored employee : " + storedEmployee.toString());
return storedEmployee;
}
}
And here is the Employee class:
package com.example.spring.mongo.model;
import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlSchemaType;
import javax.xml.bind.annotation.XmlType;
import javax.xml.datatype.XMLGregorianCalendar;
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "Employee", propOrder = { "id", "name", "designation", "joiningDate", "department" })
public class Employee implements Serializable {
private final static long serialVersionUID = 1L;
@XmlElement(name = "Id")
protected int id;
@XmlElement(name = "Name", required = true)
protected String name;
@XmlElement(name = "Designation", required = true)
protected String designation;
@XmlElement(name = "JoiningDate", required = true)
@XmlSchemaType(name = "date")
protected XMLGregorianCalendar joiningDate;
@XmlElement(name = "Department", required = true)
protected String department;
/**
* Gets the value of the id property.
*
*/
public int getId() {
return id;
}
/**
* Sets the value of the id property.
*
*/
public void setId(int value) {
this.id = value;
}
/**
* Gets the value of the name property.
*
* @return possible object is {@link String }
*
*/
public String getName() {
return name;
}
/**
* Sets the value of the name property.
*
* @param value
* allowed object is {@link String }
*
*/
public void setName(String value) {
this.name = value;
}
/**
* Gets the value of the designation property.
*
* @return possible object is {@link String }
*
*/
public String getDesignation() {
return designation;
}
/**
* Sets the value of the designation property.
*
* @param value
* allowed object is {@link String }
*
*/
public void setDesignation(String value) {
this.designation = value;
}
/**
* Gets the value of the joiningDate property.
*
* @return possible object is {@link XMLGregorianCalendar }
*
*/
public XMLGregorianCalendar getJoiningDate() {
return joiningDate;
}
/**
* Sets the value of the joiningDate property.
*
* @param value
* allowed object is {@link XMLGregorianCalendar }
*
*/
public void setJoiningDate(XMLGregorianCalendar value) {
this.joiningDate = value;
}
/**
* Gets the value of the department property.
*
* @return possible object is {@link String }
*
*/
public String getDepartment() {
return department;
}
/**
* Sets the value of the department property.
*
* @param value
* allowed object is {@link String }
*
*/
public void setDepartment(String value) {
this.department = value;
}
}
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