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Mongodb problem set
2022-07-06 01:26:00 【I'm the real number 17】
mongo start-up
mongod --dbpath E:\MongoDB\data\db
1:MongoClient、MongoClientURI Red explosion
I tested a lot of dependencies , I don't think it can be solved by dependence , Finally, I got it right , Fierce woman crying .
Add dependency
<dependencies>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>casbah-core_2.10</artifactId>
<version>3.1.1</version>
</dependency>
</dependencies>
2:Failed to find data source: com.mongodb.spark.sql
Add dependency
<!-- spark Connect mongo The connectors -->
<dependency>
<groupId>org.mongodb.spark</groupId>
<artifactId>mongo-spark-connector_2.11</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.11</artifactId>
<version>2.3.1</version>
</dependency>
3:Caused by: java.lang.NumberFormatException: For input string: “movieId”
The data file has impurities , Manual deletion or data preprocessing can be solved
SLF4J: Class path contains multiple SLF4J bindings.
Redundant SLF4J package
Exclude superfluous from dependencies log package
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>2.3.1</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
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