Java连接示例
最近更新时间: 2024-10-17 17:10:00
相关说明
云数据库 MongoDB 默认提供 rwuser 和 mongouser 两个用户名,分别支持 MONGODB-CR 和 SCRAM-SHA-1 两种认证方式,对于这两种认证方式,连接 URI 需要做不同的处理,具体参见 连接实例。
Java Jar 包下载,请选择3.2以上版本
快速开始
原生 Java 示例代码
package mongodbdemo;
import org.bson.*;
import com.mongodb.*;
import com.mongodb.client.*;
public class MongodbDemo {
public static void main(String[] args) {
String mongoUri = "mongodb://mongouser:thepasswordA1@10.66.187.127:27017/admin";
MongoClientURI connStr = new MongoClientURI(mongoUri);
MongoClient mongoClient = new MongoClient(connStr);
try {
// 使用名为 someonedb 的数据库
MongoDatabase database = mongoClient.getDatabase("someonedb");
// 取得集合/表 someonetable 句柄
MongoCollection<Document> collection = database.getCollection("someonetable");
// 准备写入数据
Document doc = new Document();
doc.append("key", "value");
doc.append("username", "jack");
doc.append("age", 31);
// 写入数据
collection.insertOne(doc);
System.out.println("insert document: " + doc);
// 读取数据
BsonDocument filter = new BsonDocument();
filter.append("username", new BsonString("jack"));
MongoCursor<Document> cursor = collection.find(filter).iterator();
while (cursor.hasNext()) {
System.out.println("find document: " + cursor.next());
}
} finally {
//关闭连接
mongoClient.close();
}
}
}
输出:
INFO: Opened connection [connectionId{localValue:2, serverValue:67621}] to 10.66.122.28:27017
insert document: Document{{key=value, username=jack, age=31, _id=56a6ebb565b33b771f9826dd}}
find document: Document{{_id=56a3189565b33b2e7ca150ba, key=value, username=jack, age=31}}
Jan 26, 2016 11:44:53 AM com.mongodb.diagnostics.logging.JULLogger log
INFO: Closed connection [connectionId{localValue:2, serverValue:67621}] to 10.66.122.28:27017 because the pool has been closed.
Spring Data MongoDB 配置示例
本示例主要为了体现出 认证库 admin 的配置方法,具体还请参考您使用的 Spring 和 Spring Data MongoDB 的版本而定。
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
<constructor-arg name="mongoDbFactory" ref="mongoDbFactory" />
</bean>
<bean id="mongoDbFactory" class="org.springframework.data.mongodb.core.SimpleMongoDbFactory">
<constructor-arg name="mongo" ref="mongo" />
<constructor-arg name="databaseName" value="您的目标库" />
<constructor-arg name="credentials" ref="userCredentials" />
<constructor-arg name="authenticationDatabaseName" value="admin" />
</bean>
<bean id="userCredentials" class="org.springframework.data.authentication.UserCredentials">
<constructor-arg name="username" value="用户名" />
<constructor-arg name="password" value="密码" />
</bean>