SpringDataForMongoDB

 

package springmongodb;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;

public class BaseMongoDAOImpl<T> implements BaseMongoDAO<T> {

	private static final int DEFAULT_SKIP = 0;
	private static final int DEFAULT_LIMIT = 200;

	/**
	 * spring mongodb　集成操作类　
	 */
	protected MongoTemplate mongoTemplate;

	@Override
	public List<T> find(Query query) {
		return mongoTemplate.find(query, this.getEntityClass());
	}

	@Override
	public T findOne(Query query) {
		return mongoTemplate.findOne(query, this.getEntityClass());
	}

	@Override
	public void update(Query query, Update update) {
		mongoTemplate.findAndModify(query, update, this.getEntityClass());
	}

	@Override
	public T save(T entity) {
		mongoTemplate.save(entity);
		return entity;
	}

	@Override
	public T findById(String id) {
		return mongoTemplate.findById(id, this.getEntityClass());
	}

	@Override
	public T findById(String id, String collectionName) {
		return mongoTemplate
				.findById(id, this.getEntityClass(), collectionName);
	}

	@Override
	public long count(Query query) {
		return mongoTemplate.count(query, this.getEntityClass());
	}

	/**
	 * 获取需要操作的实体类class
	 * 
	 * @return
	 */
	private Class<T> getEntityClass() {

		return getSuperClassGenricType(getClass(), 0);
	}

	@SuppressWarnings("all")
	private Class getSuperClassGenricType(Class clazz, int index) {
		Type genType = clazz.getGenericSuperclass();// 得到泛型父类
		// 如果没有实现ParameterizedType接口，即不支持泛型，直接返回Object.class
		if (!(genType instanceof ParameterizedType)) {
			return Object.class;
		}
		// 返回表示此类型实际类型参数的Type对象的数组,数组里放的都是对应类型的Class, 如BuyerServiceBean extends
		// DaoSupport<Buyer,Contact>就返回Buyer和Contact类型
		Type[] params = ((ParameterizedType) genType).getActualTypeArguments();
		if (index >= params.length || index < 0) {
			throw new RuntimeException("你输入的索引"
					+ (index < 0 ? "不能小于0" : "超出了参数的总数"));
		}
		if (!(params[index] instanceof Class)) {
			return Object.class;
		}
		return (Class) params[index];
	}

	/**
	 * 注入mongodbTemplate
	 * 
	 * @param mongoTemplate
	 */
	@Autowired
	public void setMongoTemplate(MongoTemplate mongoTemplate) {
		this.mongoTemplate = mongoTemplate;
	}

} 

Spring.xml

<?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:batch="http://www.springframework.org/schema/batch"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/batch
	   http://www.springframework.org/schema/batch/spring-batch-2.2.xsd
	   http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.0.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
       ">




	<context:component-scan base-package="springmongodb" />

	<context:property-placeholder location="mongodb.properties" />

	<context:annotation-config />
	<bean id="mongo" class="org.springframework.data.mongodb.core.MongoFactoryBean">
		<property name="host" value="localhost" />
		<property name="port" value="27017" />
	</bean>
	<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
		<constructor-arg name="mongo" ref="mongo" />
		<constructor-arg name="databaseName" value="test" />
	</bean>
	<bean id="mongodb" class="springmongodb.BaseMongoDAOImpl"/>
	<!-- <mongo:db-factory id="mongoDbFactory" host="${db.host}" port="${db.port}" 
		dbname="${db.port}" /> -->



</beans>

所需的jar

commons-logging-1.1.1.jar
hibernate-validator-4.1.0.Final.jar
jackson-core-asl-1.7.2.jar
jackson-mapper-asl-1.7.2.jar
log4j-1.2.15.jar
mongo-java-driver-2.9.3.jar
mybatis-3.2.0-SNAPSHOT.jar
mybatis-spring-1.1.1.jar
servlet-api.jar
slf4j-api-1.5.8.jar
slf4j-log4j12-1.5.8.jar
spring-aop-3.2.2.RELEASE.jar
spring-aspects-3.2.2.RELEASE.jar
spring-beans-3.2.2.RELEASE.jar
spring-build-src-3.2.2.RELEASE.jar
spring-context-3.2.2.RELEASE.jar
spring-context-support-3.2.2.RELEASE.jar
spring-core-3.2.2.RELEASE.jar
spring-data-commons-1.5.0.RELEASE.jar
spring-data-mongodb-1.2.0.RELEASE.jar
spring-data-mongodb-cross-store-1.2.0.RELEASE.jar
spring-data-mongodb-log4j-1.2.0.RELEASE.jar
spring-expression-3.2.2.RELEASE.jar
spring-instrument-3.2.2.RELEASE.jar
spring-instrument-tomcat-3.2.2.RELEASE.jar
spring-jdbc-3.2.2.RELEASE.jar
spring-jms-3.2.2.RELEASE.jar
spring-orm-3.2.2.RELEASE.jar
spring-oxm-3.2.2.RELEASE.jar
spring-struts-3.2.2.RELEASE.jar
spring-test-3.2.2.RELEASE.jar
spring-tx-3.2.2.RELEASE.jar
spring-web-3.2.2.RELEASE.jar
spring-webmvc-3.2.2.RELEASE.jar
spring-webmvc-portlet-3.2.2.RELEASE.jar
tomcat-coyote.jar
validation-api-1.0.0.GA.jar