MongoDB 连接

package com.cdel.portal.core.mongo;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.UnknownHostException;
import java.util.List;
import java.util.Properties;

import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.Mongo;
import com.mongodb.MongoException;

public class MongoDBManager {

/**
* 连接池
*/
private static Mongo mg = null;
/**
* you can think it is similar to connection
*/
private static DB db;

// private static final String dbAddress="192.168.190.49";
// private static final int dbPort=27017;
// private static final String dbName="lectureDB";

static{
try {
InputStream is = MongoDBManager.class.getClassLoader().getResourceAsStream("mongDB.properties");
Properties p = new Properties();
p.load(is);

Integer dbPort = Integer.parseInt((String)p.get( "dbPort") );
mg = new Mongo( (String)p.get( "dbAddress") ,dbPort );
db = mg.getDB((String) p.get("dbName") );
is.close();
} catch (Exception e) {
e.printStackTrace();
}

}
public MongoDBManager() throws UnknownHostException, MongoException{

// users = db.getCollection("users");
}

/**
* 根据 集合的名字 得到集合对象
* @param collectionName
* @return
*/
public DBCollection getCollection(final String collectionName ){
return db.getCollection( collectionName);
}

/**
*
* @param dbCollection
* @param dbObject 添加数据
*/

public void AdddOneData(DBCollection dbCollection, DBObject dbObject){
dbCollection.insert( dbObject );
}


/**
*
* @param collection
* @param dbCondition 删除数据的条件
*/
public void remove(DBCollection collection ,DBObject dbCondition ){
collection.remove( dbCondition );
}

/**
* 更新数据
* @param collection
* @param updateCondition 根据这个条件 所要 更新的的数据
* @param updateResult 数据 更新后的结果
*/

public void update(DBCollection collection,DBObject updateCondition ,DBObject updateResult ){

collection.update( updateCondition , updateResult ,false,false );
}

/**
* 根据条件查询 相应的数据
* @param collection
* @return
*/
public List<DBObject> queryByCondition(DBCollection collection,DBObject condition ){
return collection.find(condition).toArray();
}


/**
* 取得查询结果集
* @param collection
* @return
*/
private static DBCursor getResult(DBCollection collection){
return collection.find();
}



// /**
// * 打印结果数据
// * @param description　结果数据相关描述
// * @param recordResult　结果集
// */
// private static void printData(String description,DBCursor recordResult){
// System.out.println(description);
// for(Iterator<DBObject> iter=recordResult.iterator();iter.hasNext();){
// System.out.println(iter.next());
// }
// }
//
// public DB getDb() {
// return db;
// }
//
// public void setDb(DB db) {
// this.db = db;
// }
//
public static void main(String[] args) throws UnknownHostException, MongoException {
MongoDBManager mongoDBUtil = new MongoDBManager();
DBCollection con = mongoDBUtil.getCollection( "col_lecture");

DBObject lectureObject=new BasicDBObject();
lectureObject.put("kcjyID",44 );

lectureObject.put("jyContent","讲义主体部分" );
mongoDBUtil.AdddOneData(con , lectureObject );



// DBObject lectureObject2 = new BasicDBObject();
//
// lectureObject2.put("kcjyID",111 );
// lectureObject2.put("jyContent","讲义主体部分1111" );
//
// con.update( lectureObject , lectureObject2 ,true,true );
//
// mongoDBUtil.update( con , lectureObject, lectureObject2);
//
// mongoDBUtil.remove( con, lectureObject );
// con.remove( lectureObject );
//
//
// List<DBObject> list = mongoDBUtil.queryByCondition(con , lectureObject );
// for( int i=0 ;i<list.size();i++ ){
// DBObject obj = list.get(i);
// System.out.println( obj.get("kcjyID"));
// System.out.println( obj.get("jyContent"));
// }
// printData("删除pig后的所有结果记录为：",getResult(mongoDBUtil.getDb().getCollection("col_lecture")));
}
}


也可以 继承到spring中 。


附件中是自己整理的MongoDB的使用文档，仅供参考