Java calling Python program

mb5fdb0a87e2fa1 2021-08-09 16:05:23
java calling python program


Because of work needs , It's easy to learn , I'm using IDEA ,jdk 1.8
First, configure locally Python Environmental Science , It's used here Anaconda, Choose to add environment variables during installation , When it's done cmd Interface input python command , You can see python Version information for , thus , Already completed python Environmental installation

 

  Next , test python Statement running , Bring one of your own Python Code file to run
python XXXX\XX\xxx.py, as follows :

 

 

Come here , You can find ,python Scripts can be run

Next , go back to IDEA
The code is as follows :

 1 public static void main(String[] args) {
 2 try {
 3 String exe = "python";
 4 String command = "XXX\\redis-demo.py";
 5 String[] cmdArr = new String[]{exe, command};
 6 Process process = Runtime.getRuntime().exec(cmdArr);
 7 BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(),"GBK"));
 8  String line;
 9 while ((line = in.readLine()) != null) {
10  System.out.println(line);
11  }
12  in.close();
13 int result = process.waitFor();
14 System.out.println(" Execution results :" + result);
15 } catch (IOException | InterruptedException e) {
16  e.printStackTrace();
17  }
18
19 }
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This is actually local Process The way it's called , The processing logic is java Call... By calling the command line Python Program , Relative to those who have stopped maintaining updates Jpython, Can handle Python Various packages imported in the program , And run faster .

 

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