Java MongoDB非框架开发进阶--副本集链接开发

最近在用Java做MongoDB的副本集操作开发，由于网上的资料系统性较差，因此，这里进行系统性的记录，供大家参考。

1、MongoDB副本集设置说明

1）在没有进行用户权限设置的情况下进行MongoDB副本集设置，例如：设置副本集rs1

mongod --replSet rs1 --keyFile /home/mongoFile/key/r0 --fork --port 28010 --dbpath /home/mongoFile/data/r0 --logpath=/home/mongoFile/log/r0.log --logappendmongod --replSet rs1 --keyFile /home/mongoFile/key/r1 --fork --port 28011 --dbpath /home/mongoFile/data/r1 --logpath=/home/mongoFile/log/r1.log --logappendmongod --replSet rs1 --keyFile /home/mongoFile/key/r2 --fork --port 28012 --dbpath /home/mongoFile/data/r2 --logpath=/home/mongoFile/log/r2.log --logappendconfig_rs1 = {_id: 'rs1', members: [{_id: 0, host: '192.168.43.12:28010'},{_id: 1, host: '192.168.43.12:28011'},{_id: 2, host: '192.168.43.12:28012'}]}rs.initiate(config_rs1)

  2）kill掉所有mongo服务，在各副本中创建数据库，以及权限。例如，要使用admin数据库

mongod --fork --port 28010 --dbpath /home/mongoFile/data/r0 --logpath=/home/mongoFile/log/r0.log --logappend

use admin

db.createUser({user:"admin",pwd:"admin",roles:[{role:"userAdminAnyDatabase",db:"admin"},{role:"clusterAdmin",db:"admin"},{role:"clusterManager",db:"admin"},{role:"readWrite",db:"admin"}]});
mongod --fork --port 28011 --dbpath /home/mongoFile/data/r1 --logpath=/home/mongoFile/log/r1.log --logappend
use admin
db.createUser({user:"admin",pwd:"admin",roles:[{role:"userAdminAnyDatabase",db:"admin"},{role:"clusterAdmin",db:"admin"},{role:"clusterManager",db:"admin"},{role:"readWrite",db:"admin"}]});
mongod --fork --port 28012 --dbpath /home/mongoFile/data/r2 --logpath=/home/mongoFile/log/r2.log --logappend
use admindb.createUser({user:"admin",pwd:"admin",roles:[{role:"userAdminAnyDatabase",db:"admin"},{role:"clusterAdmin",db:"admin"},{role:"clusterManager",db:"admin"},{role:"readWrite",db:"admin"}]});

现在所有的副本设置操作已经完成，重新启动个副本即可:
mongod --replSet rs1 --keyFile /home/mongoFile/key/r0 --fork --port 28010 --dbpath /home/mongoFile/data/r0 --logpath=/home/mongoFile/log/r0.log --logappendmongod --replSet rs1 --keyFile /home/mongoFile/key/r1 --fork --port 28011 --dbpath /home/mongoFile/data/r1 --logpath=/home/mongoFile/log/r1.log --logappendmongod --replSet rs1 --keyFile /home/mongoFile/key/r2 --fork --port 28012 --dbpath /home/mongoFile/data/r2 --logpath=/home/mongoFile/log/r2.log --logappend

2、Java MongoDB副本集操作开发
应用MongoClient链接池即可，示例代码如下：
package Database;import java.text.DecimalFormat;import java.util.ArrayList;import java.util.Date;import java.util.List;import org.bson.Document;import Configuration.ConfigCallBack;import com.mongodb.BasicDBObject;import com.mongodb.BasicDBObjectBuilder;import com.mongodb.MongoClient;import com.mongodb.MongoCredential;import com.mongodb.ServerAddress;import com.mongodb.client.FindIterable;import com.mongodb.client.MongoCollection;import com.mongodb.client.MongoCursor;import com.mongodb.client.MongoDatabase;public class MongoDBAPI implements DataBaseCallBack{public static void main(String[] args) throws InterruptedException{System.out.println("start");MongoDBAPI m_md = new MongoDBAPI();DataBaseParameter m_dp = new DataBaseParameter();m_dp.setM_DBname("gps");m_dp.setM_IP("192.168.43.4");m_dp.setM_Password("liangsheng");m_dp.setM_Port(27017);m_dp.setM_User("liangsheng");m_md.SetInitParameter(m_dp);if(m_md.InitDataBase()){//DataBaseOperationParameter c_dbop = new DataBaseOperationParameter();//插入数据验证//c_dbop.setM_TableName("t7070_2016_4_22");//c_dbop.setM_Data("aaaaaaaa");//c_dbop.setM_Key("PP");//c_dbop.setM_Value("ty");//m_md.SetOperationParameter(c_dbop);//m_md.CreateTable();//while(true){m_md.Test_InsertData();//m_md.QueryDataBase();//Thread.sleep(1000);//}}elseSystem.out.println("Init error");}//mongodb操作对象private MongoClient m_Mongoclient = null;private MongoDatabase m_DB = null;private MongoCollection<Document> m_Collection = null;private volatile boolean isCheck = false;//mongodb操作初始化参数private String m_DBname;private List<DataBaseParameter> m_DBparameters;
//mongodb链接池链接副本集
 @Overridepublic boolean InitDataBase(){if(null == m_Mongoclient){try{List<ServerAddress> c_addrs = new ArrayList<ServerAddress>();List<MongoCredential> c_credentials = new ArrayList<MongoCredential>();for(int i = 0;i<m_DBparameters.size();i++){DataBaseParameter c_dbp = m_DBparameters.get(i);ServerAddress c_serverAddress = new ServerAddress(c_dbp.getM_IP(),c_dbp.getM_Port());c_addrs.add(c_serverAddress); //MongoCredential.createScramSha1Credential()三个参数分别为 用户名 数据库名称 密码 MongoCredential c_credential = MongoCredential.createScramSha1Credential(c_dbp.getM_User(), c_dbp.getM_DBname(), c_dbp.getM_Password().toCharArray());c_credentials.add(c_credential); } //通过连接认证获取MongoDB连接 m_Mongoclient = new MongoClient(c_addrs,c_credentials); if(null != m_Mongoclient){ //连接到数据库 m_DB = m_Mongoclient.getDatabase(m_DBname); if(null != m_DB){ System.out.println("Connect to database successfully"); return true; } else{ System.out.println("Connect to database failed"); } } }catch(Exception e){e.printStackTrace();}}return false;}@Overridepublic void SetInitParameter(DataBaseParameter p_dp){if(null == m_DBparameters)m_DBparameters = new ArrayList<DataBaseParameter>();m_DBname = p_dp.getM_DBname();m_DBparameters.add(p_dp);}@Overridepublic void DestroyDataBase(){if(null != m_Mongoclient){m_Mongoclient.close();m_Mongoclient = null;m_DB = null;m_Collection = null;}}@Overridepublic void setAutoCreateInformation(ConfigCallBack p_config){}@Overridepublic void AutoCreateTable(){}//判断表格是否存在@Overridepublic boolean checkTable(String p_name){while(true){if(!isCheck){isCheck = true;try{if(m_DB.getCollection(p_name).count() > 0)break;else{isCheck = false;return false;}}catch(IllegalArgumentException e){isCheck = false;return false;}}}isCheck = false;return true;}//手动创建表格@Overridepublic boolean CreateTable(String p_name){while(true){if(!isCheck){isCheck = true;try{m_DB.createCollection(p_name); System.out.println("create collection success"); isCheck = false; return true;}catch(Exception e){e.printStackTrace();isCheck =false;}return false;}}}public boolean InsertData(Document p_data,String p_tablename){if(null == p_data)return false;try{m_Collection = m_DB.getCollection(p_tablename);long c_cout = m_Collection.count();p_data.append("_id", c_cout+1);m_Collection.insertOne(p_data);}catch(Exception e){e.printStackTrace();return false;} return true;}@Overridepublic boolean beginToDeal(BASEOPERATION p_operation, Object p_data, String p_tablename) {// TODO Auto-generated method stubif(null == p_operation || null == p_data)return false;if(p_data instanceof Document){Document c_data = (Document) p_data;switch(p_operation){case insert:if(InsertData(c_data, p_tablename))break;elsereturn false;case query:break;default:return false;}}return true;}//测试查询数据库@SuppressWarnings("deprecation")public boolean QueryDataBase(){try{m_Collection = null;// m_Collection = m_DB.getCollection("Vehicle7070_2016_4_22");m_Collection = m_DB.getCollection("vehile集合"); System.out.println("集合 test 选择成功"); //检索所有文档 /** * 1. 获取迭代器FindIterable<Document> * 2. 获取游标MongoCursor<Document> * 3. 通过游标遍历检索出的文档集合 * */ BasicDBObject query = new BasicDBObject(); query.put("TIME", BasicDBObjectBuilder.start("$gte",new Date(2016-1900,4-1,22,0,0,0)).add("$lte", new Date(2016-1900,4-1,22,23,59,0)).get()); BasicDBObject queryf = new BasicDBObject(); queryf.put("TIME", -1); FindIterable<Document> c_findIterable = m_Collection.find(new Document("PP","ty")).sort(queryf);// FindIterable<Document> c_findIterable = m_Collection.find(query); MongoCursor<Document> c_mongoCursor = c_findIterable.iterator(); while(c_mongoCursor.hasNext()){ System.out.println(c_mongoCursor.next()); } }catch(Exception e){e.printStackTrace();}return false;}//测试插入语句public boolean Test_InsertData(){try{// m_Collection = m_DB.getCollection(m_DBOP.getM_TableName());m_Collection = m_DB.getCollection("粤B 666888_2017_09_06"); System.out.println("集合 test 选择成功"); //IsoChronology //插入文档 /** * 1. 创建文档 org.bson.Document 参数为key-value的格式 * 2. 创建文档集合List<Document> * 3. 将文档集合插入数据库集合中 mongoCollection.insertMany(List<Document>) 插入单个文档可以用 mongoCollection.insertOne(Document) * */ double d_lanti_n = 3644.5000; double d_longi_n = 00930.5000; for(int i = 0;i<20000;i++){ Document dddd = new Document(); dddd.append("TIME", new Date()); dddd.append("LATI", "N"); dddd.append("LONGI", "E");// double d_lanti_n = 3644.5000 + new Random().nextDouble()*(3650.0000-3644.5000); d_lanti_n = d_lanti_n + 0.0009; dddd.append("LATI_N", new DecimalFormat("0000.0000").format(d_lanti_n));// double d_longi_n = 00930.5000 + new Random().nextDouble()*(00940.5000-00930.5000); d_longi_n = d_longi_n + 0.001; dddd.append("LONGI_N", new DecimalFormat("00000.0000").format(d_longi_n)); long c_cout = m_Collection.count(); dddd.append("_id", c_cout+1); System.out.println(c_cout); m_Collection.insertOne(dddd); System.out.println("文档插入成功"); Thread.sleep(1000); }}catch(Exception e){e.printStackTrace();}return false;}//测试建表public boolean CreateTable(){try{m_DB.createCollection("vehile集合"); System.out.println("集合创建成功"); return true;}catch(Exception e){e.printStackTrace();}return false;}//测试变量// private DataBaseOperationParameter m_DBOP;//测试使用// public void SetOperationParameter(DataBaseOperationParameter p_dbop){// m_DBOP = p_dbop;// }}