RDD [(String，Int)]上的saveAsTextFile时，如何删除记录周围的括号? [英] How to remove parentheses around records when saveAsTextFile on RDD[(String, Int)]?

问题描述

我正在使用saveAsTextFile(path)以便将输出另存为文本文件，以便稍后将结果导入到DB中.输出看起来像这样:

I'm using saveAsTextFile(path) in order to save output as text file in later to import the result to DB. The output looks something like this:

(value1, value2)

如何删除括号?

推荐答案

您可以尝试以下非常基本的方法:

You can try the following which is very basic:

rdd.map(x => x._1 + "," + x._2).saveAsTextFile(path)

您只需将RDD [(A，B)]映射到RDD [String]并保存.

You just map your RDD[(A,B)] to an RDD[String] and save it.

这篇关于RDD [(String，Int)]上的saveAsTextFile时，如何删除记录周围的括号?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！