我正在嘗試連接到 MongoDB 以撰寫集合。spark會話已正確創建，但是當我嘗試將資料插入 Mongo 時，出現以下錯誤：
MongoSpark.write(stringPeriodosDataframe).option("collection", "periodos").mode("overwrite").save();
我得到的例外：
Exception in thread "main" java.lang.NoClassDefFoundError: com/mongodb/ConnectionString
at com.mongodb.spark.config.MongoCompanionConfig$$anonfun$4.apply(MongoCompanionConfig.scala:278)
at com.mongodb.spark.config.MongoCompanionConfig$$anonfun$4.apply(MongoCompanionConfig.scala:278)
at scala.util.Try$.apply(Try.scala:192)
at com.mongodb.spark.config.MongoCompanionConfig$class.connectionString(MongoCompanionConfig.scala:278)
at com.mongodb.spark.config.WriteConfig$.connectionString(WriteConfig.scala:37)
at com.mongodb.spark.config.WriteConfig$.apply(WriteConfig.scala:209)
at com.mongodb.spark.config.WriteConfig$.apply(WriteConfig.scala:37)
at com.mongodb.spark.config.MongoCompanionConfig$class.apply(MongoCompanionConfig.scala:124)
at com.mongodb.spark.config.WriteConfig$.apply(WriteConfig.scala:37)
at com.mongodb.spark.config.MongoCompanionConfig$class.apply(MongoCompanionConfig.scala:113)
at com.mongodb.spark.config.WriteConfig$.apply(WriteConfig.scala:37)
at com.mongodb.spark.sql.DefaultSource.createRelation(DefaultSource.scala:81)
at org.apache.spark.sql.execution.datasources.SaveIntoDataSourceCommand.run(SaveIntoDataSourceCommand.scala:46)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.doExecute(commands.scala:86)
at org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:131)
at org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:127)
at org.apache.spark.sql.execution.SparkPlan$$anonfun$executeQuery$1.apply(SparkPlan.scala:155)
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at org.apache.spark.sql.execution.SparkPlan.executeQuery(SparkPlan.scala:152)
at org.apache.spark.sql.execution.SparkPlan.execute(SparkPlan.scala:127)
at org.apache.spark.sql.execution.QueryExecution.toRdd$lzycompute(QueryExecution.scala:80)
at org.apache.spark.sql.execution.QueryExecution.toRdd(QueryExecution.scala:80)
at org.apache.spark.sql.DataFrameWriter$$anonfun$runCommand$1.apply(DataFrameWriter.scala:654)
at org.apache.spark.sql.DataFrameWriter$$anonfun$runCommand$1.apply(DataFrameWriter.scala:654)
at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
at org.apache.spark.sql.DataFrameWriter.runCommand(DataFrameWriter.scala:654)
at org.apache.spark.sql.DataFrameWriter.saveToV1Source(DataFrameWriter.scala:273)
at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:267)
at com.santander.espana.CargarPeriodos.insertCollectionPeriodoDataframe(CargarPeriodos.java:117)
at com.santander.espana.CargarPeriodos.build(CargarPeriodos.java:71)
at com.santander.espana.MainCargaPeriodos.init(MainCargaPeriodos.java:38)
at com.santander.espana.Prueba.main(Prueba.java:50)
Caused by: java.lang.ClassNotFoundException: com.mongodb.ConnectionString
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 34 more
Disconnected from the target VM, address: '127.0.0.1:60130', transport: 'socket'
Process finished with exit code 1
版本：
mongo-spark-connector_2.11-2.3.0
Java 1.8
IntelliJ 2021 1.2 社區
Spark 庫版本 2.11
我正在使用的其他依賴版本：
hadoop 2.7, spark 2.3.0, java driver 2.7, spark催化劑,core,hive,sql ....all 2.11:2.3.0, scala scala-library:2.11.12
MongoDB 4.0.16
堅持這一點，任何幫助都非常受歡迎
謝謝！
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最后這里提供了解決方案：mongodb spark connector issue
作品！
我用的是最新版本：mongo-java-driver-3.12.10
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