使用包含您在问题中发布的确切内容的csv文件：

product price,product origin,phone number
20,US,200200

您应该能够使用org.apache.spark.sql.types._中的类型创建架构。您可以执行以下操作：

import org.apache.spark.sql.types._
val mySchema = new StructType()
  .add("product price", IntegerType)
  .add("product origin", StringType)
  .add("phone number", StringType)

val df = spark
  .read
  .option("header", "true")
  .schema(mySchema)
  .csv("./simpleCSV.csv")

df.show
+-------------+--------------+------------+                                                                                                                                                                                                                                     
|product price|product origin|phone number|                                                                                                                                                                                                                                     
+-------------+--------------+------------+                                                                                                                                                                                                                                     
|           20|            US|      200200|                                                                                                                                                                                                                                     
+-------------+--------------+------------+

df.printSchema                                                                                                                                                                                                                                                           
root                                                                                                                                                                                                                                                                            
 |-- product price: integer (nullable = true)                                                                                                                                                                                                                                   
 |-- product origin: string (nullable = true)                                                                                                                                                                                                                                   
 |-- phone number: string (nullable = true)

希望这对你有帮助！