Mongodb demo
基于mongodb3.0.1, 下载mongo-java-driver-3.0.1.jar
package test.mongodb; import java.util.HashMap; import java.util.Map; import org.bson.Document; import org.bson.conversions.Bson; import com.mongodb.MongoClient; import com.mongodb.client.FindIterable; import com.mongodb.client.MongoCollection; import com.mongodb.client.MongoDatabase; import com.mongodb.client.model.Filters; public class MongodbDemo { public static void main(String[] arsg) { MongoClient client = new MongoClient("192.168.190.128",27017); //MongoClient client = new MongoClient(); MongoDatabase database = client.getDatabase("testMongo");//Database name //MongoCollection<> collection = database.getCollection(""); add(database); upate(database); delete(database); search(database); client.close(); } public static void add(MongoDatabase database) { MongoCollection<Document> collection = database.getCollection("foo");//集合 name Map<String, String> map = new HashMap<String, String>(); map.put("time", "2015-05-21 22:59"); Document document = new Document("AddBy", "JAVA" ).append("append", map); collection.insertOne(document); database.createCollection("JavaCollection"); } public static void delete(MongoDatabase database) { MongoCollection<Document> collection = database.getCollection("foo"); collection.deleteOne(Filters.lte("age", 22)); database.getCollection("JavaCollection").drop(); } public static void upate(MongoDatabase database){ MongoCollection<Document> collection = database.getCollection("foo"); //collection.updateOne(Filters.gt("age",18), new Document("$set", new Document("sex","MANNN"))); collection.updateMany(Filters.gt("age",18), new Document("$set", new Document("sex","MANNN"))); } public static void search(MongoDatabase database){ MongoCollection<Document> collection = database.getCollection("foo"); Bson bsonfilter = Filters.gte("age",22); FindIterable<Document> find = collection.find(bsonfilter); System.out.println("collection.count():: "+ collection.count()); for(Document documentT : find) { System.out.println(documentT.get("sex")); } Document document = find.first(); if(null !=document && document.containsKey("age")) { System.out.println(document.getDouble("age")); } } }
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