MongoDB设置访问权限、设置用户、在Java中用户名密码访问

以下操作基于Windows平台

1、启动MongoDB服务

　　mongod.exe --dbpath d:\mongodb-win32-x86_64-2.2.2\data --logpath d:\mongodb-win32-x86_64-2.2.2\log\mongo.log --auth

　　【--auth】：代表需要根据权限访问，必须加此参数启动服务，客户端才能以用户名密码方式建立连接

2、启动Mongo控制台 mongo

1. D:\mongodb-win32-x86_64-2.2.2\bin>mongo
2. MongoDB shell version: 2.2.2
3. connecting to: test
4. >

3、切换到要设置的数据库，创建用户

1. > use caotian
2. switched to db caotian
3. > db.addUser("ctAdmin","111111");
4. {
5. "user" : "ctAdmin",
6. "readOnly" : false,
7. "pwd" : "790457ca1e19341d5043766e9192c5b9",
8. "_id" : ObjectId("549943e6cbd0bdf00f57783b")
9. }
10. >

4、Java中建立连接

1. try {
2. ServerAddress sa = new ServerAddress("localhost","27017");
3. MongoOptions options = new MongoOptions();
4. options.connectionsPerHost = 200;//pool size(驱动的链接池大小). /* mongod --dbpath ..\db --maxConns 20(并发数) */ 默认都为10
5. this.mongo = new Mongo(sa, options);
6. this.db = this.mongo.getDB("caotian");
7. char[] pwd_char = "111111".toCharArray();
8. boolean auth = db.authenticate("ctAdmin",pwd_char);
9. if(!auth){
10. logger.info("======MongoDB 初始化权限验证错误======");
11. throw new RuntimeException();
12. }
13. logger.info("======MongoDB 初始化完成======");
14. } catch (UnknownHostException e) {
15. e.printStackTrace();
16. } catch (MongoException e) {
17. e.printStackTrace();
18. }