配置好mongodb連線之後，點選預覽報下面的錯：

報錯：

java.lang.NoClassDefFoundError: javax/crypto/spec/PBEKeySpec
        at com.mongodb.DBPort$ScramSha1Authenticator$ScramSha1SaslClient.Hi(DBPort.java:822)
        at com.mongodb.DBPort$ScramSha1Authenticator$ScramSha1SaslClient.computeClientFinalMessage(DBPort.java:747)
        at com.mongodb.DBPort$ScramSha1Authenticator$ScramSha1SaslClient.evaluateChallenge(DBPort.java:681)
        at com.mongodb.DBPort$SaslAuthenticator.authenticate(DBPort.java:904)
        at com.mongodb.DBPort.authenticate(DBPort.java:432)
        at com.mongodb.DBPort.checkAuth(DBPort.java:443)
        at com.mongodb.DBTCPConnector.innerCall(DBTCPConnector.java:289)
        at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:269)
        at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:84)
        at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:66)
        at com.mongodb.DBCursor._check(DBCursor.java:498)
        at com.mongodb.DBCursor._hasNext(DBCursor.java:621)
        at com.mongodb.DBCursor.hasNext(DBCursor.java:657)
        at org.pentaho.mongo.wrapper.cursor.DefaultCursorWrapper.hasNext(DefaultCursorWrapper.java:34)
        at org.pentaho.di.trans.steps.mongodbinput.MongoDbInput.processRow(MongoDbInput.java:89)
        at org.pentaho.di.trans.step.RunThread.run(RunThread.java:62)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: javax.crypto.spec.PBEKeySpec not found by org.mongodb.mongo-java-driver [59]
        at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1532)
        at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)
        at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1955)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        ... 17 more

解決辦法：

目錄：data-integration\system\karaf\etc\config.properties

檔案中下部有一行 org.osgi.framework.bootdelegation=（一堆引數）
在末尾處加上  ,javax.crypto,javax.crypto.*
Mongo就可以正常連線讀取資料了。