mongodb java driver 3.2 学习例子

package com.peidw.idms;import com.mongodb.*;import com.mongodb.client.FindIterable;import com.mongodb.client.MongoCollection;import com.mongodb.client.MongoDatabase;import com.mongodb.client.MongoIterable;import com.mongodb.client.model.Filters;import com.mongodb.client.model.UpdateOptions;import org.bson.Document;import org.bson.conversions.Bson;import org.junit.Assert;import org.junit.Test;import java.util.ArrayList;import java.util.Arrays;import java.util.List;import java.util.Set;import static com.mongodb.client.model.Filters.and;import static com.mongodb.client.model.Filters.eq;import static com.mongodb.client.model.Filters.regex;import static com.mongodb.client.model.Sorts.ascending;/** * Created by peidw on 2016/9/2. */public class MongodbTest {    @Test    public void do1(){        String myUserName = "admin";        String myPassword = "admin";        MongoClient mongoClient = new MongoClient("192.168.146.129", 27017);        Assert.assertNotNull(mongoClient);        //连接数据库        MongoDatabase db=mongoClient.getDatabase("mydb");        mongoClient.setWriteConcern(WriteConcern.JOURNALED);        //无密码 验证用户        MongoClientURI uri = new MongoClientURI("mongodb://192.168.146.129:27017/mydb", MongoClientOptions.builder().cursorFinalizerEnabled(false));        MongoClient client = new MongoClient(uri);        MongoDatabase mydb=client.getDatabase("mydb");        MongoCollection<Document> collection = mydb.getCollection("users");        List<Document> foundDocument = collection.find().into(new ArrayList<Document>());        System.out.println(foundDocument);        //集合列表        // 4.集合列表        MongoIterable<String> colls =  mydb.listCollectionNames();        for (String s : colls) {            System.out.println("CollectionName=" + s);        }        //获得某集合对象        MongoCollection<Document> mc = mydb.getCollection("users");        mc.drop();        //把记录插入集合        Document users_dc1= new Document("name", "killcsdn").append("age",22).append("email","[e-mail]");        Document users_dc2= new Document("name", "javaeye").append("age",33).append("email","[e-mail]");        mc.insertMany(Arrays.asList(users_dc1,users_dc2));        //测试: 查询全部        FindIterable<Document> iterable = mc.find();        printResult("find all", iterable);        //创建单字段索引        mc.createIndex(new Document("name", 1));        //根据条件查询        //查询age=22        iterable = mc.find(new Document("age", 22));        printResult("age=22", iterable);        //查询name like %csdn% and owner=tom        iterable = mc.find( and (regex("name", "j"), eq("age", 33)));        printResult("find name like %j% and age=33", iterable);        //查询全部按title排序        iterable = mc.find().sort(ascending("name"));        printResult("find all and ascending name", iterable);        //记录不存在新增，存在更新        Bson filter = Filters.eq("name", "裴xx");        Bson xxdoc = new Document("$set", new Document("name", "裴xx").append("age",350).append("email","[e-mail]"));        UpdateOptions options = new UpdateOptions().upsert(true);        mc.updateOne(filter,xxdoc,options);        Bson filter2 = Filters.eq("name", "裴xx");        Bson xxdoc2 = new Document("$set", new Document("name", "裴xx更新后").append("age",350).append("email","[e-mail]"));        UpdateOptions options2 = new UpdateOptions().upsert(true);        mc.updateOne(filter2,xxdoc2,options2);        FindIterable<Document> iterable_up = mc.find();        printResult("find all", iterable_up);    }    //打印查询的结果集    public void printResult(String doing, FindIterable<Document> iterable) {        System.out.println(doing);        iterable.forEach(new Block<Document>() {            public void apply(final Document document) {                System.out.println(document);            }        });        System.out.println("------------------------------------------------------");        System.out.println();    }}

参考：

http://blog.csdn.net/autfish/article/details/51366839