小编Cho*_*een的帖子

如何在进行 bazel 构建时传递参数。实际上我的程序将接受两个参数。一个是目录，另一个是 target.csv 我需要获取目录下的文件并将其写入 csv。

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collector;

import org.apache.flink.api.common.functions.FlatMapFunction;
import org.apache.flink.api.java.DataSet;
import org.apache.flink.api.java.ExecutionEnvironment;
import org.apache.flink.api.java.tuple.Tuple1;
import org.apache.flink.api.java.utils.ParameterTool;


public class ReadFiles {

  /**
   * @param args
   */
  public static void main(String[] args) throws Exception {

    // set up the execution environment
    try {
      final ParameterTool params = ParameterTool.fromArgs(args);
      final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

      env.setParallelism(1); // without this multiple files creating
      env.getConfig().setGlobalJobParameters(params);

      List<String> paths = new ArrayList<String>();
      File dir = new File(params.getRequired("input"));
      for (File f …