java連接mongoDB《安全驗證》

1. 需要jar包：

maven依賴：

		<dependency>
			<groupId>org.mongodb</groupId>
			<artifactId>mongo-java-driver</artifactId>
			<version>2.12.4</version>
		</dependency>

2.設置db數據庫的安全驗證機制：

  ①創建用戶

 ②在開啓mongoDB的時候使用安全模式：

3.java代碼，實現CRUD。

 

package mongoDb;

import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;

public class MongoDBUtil {
    static MongoClient client;
    static DB db;
    static DBCollection collection;

    static {
        try {
            // client = new MongoClient("192.168.20.114", 27017);
            System.out.println("連接服務器測試.................");
            ServerAddress serverAddress = new ServerAddress("192.168.20.114", 27017);
            List<ServerAddress> seeds = new ArrayList<ServerAddress>();
            seeds.add(serverAddress);
            MongoCredential credentials = MongoCredential.createMongoCRCredential("testAdmin", "test",
                    "123".toCharArray());
            List<MongoCredential> credentialsList = new ArrayList<MongoCredential>();
            credentialsList.add(credentials);
            client = new MongoClient(seeds, credentialsList);
            // (List<ServerAddress> seeds, List<MongoCredential//
            db = client.getDB("test");
            // db.authenticate("testAdmin", "123".toCharArray());
            collection = db.getCollection("user");
        } catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public static void add(DBObject dbObject) {
        collection.insert(dbObject);
    }

    public static void del(DBObject dbObject) {
        collection.remove(dbObject);
    }

    public static void update(DBObject dbObject1, DBObject dbObject2) {
        collection.update(dbObject1, dbObject2);
    }

    public static DBObject queryOneByKey(DBObject dbObject, DBObject keys) {
        DBCursor dbCursor = collection.find(dbObject, keys);
        if (dbCursor.hasNext()) {
            return dbCursor.next();
        }
        return null;
    }

    public static java.util.List<DBObject> query(DBObject dbObject) {
        DBCursor dbCursor = collection.find(dbObject);
        List<DBObject> ret = new ArrayList<DBObject>();
        while (dbCursor.hasNext()) {
            DBObject dbObject2 = dbCursor.next();
            ret.add(dbObject2);

        }
        return ret;
    }

    
    
    public static void main(String[] args) {
        BasicDBObject dbObject = new BasicDBObject();
        dbObject.put("num", new BasicDBObject("$gt", 0));
        List<DBObject> ret = MongoDBUtil.query(dbObject);
        for (Iterator<DBObject> it = ret.iterator(); it.hasNext();) {
            System.out.println(it.next());
        }
    }

}