java - 在 python 中使用它们将 2 个参数从 Java 传递到 Python

Question

这个问题已经有答案了:

pass multiple parameters to ProcessBuilder with a space (3 个回答)

已关闭 3 年前。

我正在将字符串值从 java 传递到 python 脚本。在我的 python 脚本中，我正在使用参数，但我无法读取 2 个值。请帮助

Java 代码:

String filePath = "E:\\Project_ivin\\test.py";  
ProcessBuilder pb = new ProcessBuilder().command("python", "-u", filePath, ""+issueId+""+comments);        
Process p = pb.start(); 

Python 脚本:

sys.argv[1] # issueid

sys.argv[2]  # comments

Answer 1

似乎缺少逗号，否则使用第三个参数。

Java:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {
  public static void main(String[] args) throws IOException, InterruptedException {
    String[] list = { "python", "-u", "in.py", "issueId", "comments" };
    ProcessBuilder pb = new ProcessBuilder().command(list);
    Process p = pb.start();
    System.out.println("" + pb.command());
    p.waitFor();
    BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
    String line;
    StringBuilder sb = new StringBuilder();
    while ((line = br.readLine()) != null)
      sb.append(line);
    System.out.println(sb.toString());
  }
}

Python:

# print(sys.argv[0]) // this will be file name

print(sys.argv[1])
print(sys.argv[2])