Mongodb 无法从java驱动程序连接到MongoLab

我有一个Mongolab帐户，该帐户中只有一个用户

我可以使用MongoChef工具连接到DB，但是当我尝试使用java驱动程序3.2.0从Eclipse中连接到该DB时，我不断地遇到身份验证失败。我得到以下错误。我在Java7上

编辑 用于连接MongoLab托管的MongoDB实例的Java代码。

    String mongoURL = new StringBuilder().append("mongodb://").append(mongoUserName).append(":").append(mongoPassword).append("@").append(mongoServer).append(":").append(mongoPort).append("/").append(dbName).toString();
    System.out.println(" The Mongo URL is " +mongoURL);
    MongoClientURI uri = new MongoClientURI(mongoURL);
    MongoClient mongo = new MongoClient(uri);

 com.mongodb.MongoTimeoutException: Timed out after 30000 ms while
 waiting for a server that matches
 ReadPreferenceServerSelector{readPreference=primary}. Client view of
 cluster state is {type=UNKNOWN,
 servers=[{address=ds061974.mongolab.com:61974, type=UNKNOWN,
 state=CONNECTING, exception={com.mongodb.MongoSecurityException:
 Exception authenticating MongoCredential{mechanism=null,
 userName='xxxx', source='hidden', password=<hidden>,
 mechanismProperties={}}}, caused by
 {com.mongodb.MongoCommandException: Command failed with error 18:
 'Authentication failed.' on server ds061974.mongolab.com:61974. The
 full response is { "ok" : 0.0, "code" : 18, "errmsg" : "Authentication
 failed." }}}]

尝试连接时收到异常。

    String mongoURL = new StringBuilder().append("mongodb://").append(mongoUserName).append(":").append(mongoPassword).append("@").append(mongoServer).append(":").append(mongoPort).append("/").append(dbName).toString();
    System.out.println(" The Mongo URL is " +mongoURL);
    MongoClientURI uri = new MongoClientURI(mongoURL);
    MongoClient mongo = new MongoClient(uri);

 com.mongodb.MongoTimeoutException: Timed out after 30000 ms while
 waiting for a server that matches
 ReadPreferenceServerSelector{readPreference=primary}. Client view of
 cluster state is {type=UNKNOWN,
 servers=[{address=ds061974.mongolab.com:61974, type=UNKNOWN,
 state=CONNECTING, exception={com.mongodb.MongoSecurityException:
 Exception authenticating MongoCredential{mechanism=null,
 userName='xxxx', source='hidden', password=<hidden>,
 mechanismProperties={}}}, caused by
 {com.mongodb.MongoCommandException: Command failed with error 18:
 'Authentication failed.' on server ds061974.mongolab.com:61974. The
 full response is { "ok" : 0.0, "code" : 18, "errmsg" : "Authentication
 failed." }}}]

com.mongodb.MongoTimeoutException:30000毫秒后超时，而
正在等待匹配的服务器
ReadPreferenceServerSelector{readPreference=primary}。的客户端视图
群集状态为{type=UNKNOWN，
servers=[{address=ds061974.mongolab.com:61974，type=UNKNOWN，
状态=正在连接，异常={com.mongodb.MongoSecurityException:
验证MongoCredential{mechanism=null的异常，
用户名='xxxx'，源='hidden'，密码=，
mechanismProperties={}，由
{com.mongodb.MongoCommandException:命令失败，出现错误18:
服务器ds061974.mongolab.com:61974上的“身份验证失败”。验证失败
完整响应为{“确定”：0.0，“代码”：18，“errmsg”：“身份验证”
失败。“}}]

尝试以下代码：

ServerAddress addr = new ServerAddress(mongoServer, mongoPort);
MongoCredential credential = MongoCredential.createMongoCredential(
        mongoUserName, mongoPassword, dbName);

MongoClient mongoClient = new MongoClient(addr, Arrays.asList(credential), null);

---

您可以分享您在何处创建凭据吗？在问题主体中添加了用于连接MongoDB实例的java代码。您的用户位于何处？在admin db或您连接到的db中？@Sagar Reddy，它位于我连接到的db中，我使用的URI格式与MongoLab提到的相同。请发电子邮件给我们在support@mlab.com我们很乐意帮你解决这个问题