@Controller
public class IndexController {
    @RequestMapping("/pythonTest")
    @ResponseBody
    public String pythonTest(){
        // 假设你的Python脚本名为script.py
        String pythonScriptPath = "D:\\project\\c1\\hello.py";

        ProcessBuilder processBuilder = new ProcessBuilder("python", pythonScriptPath);
        processBuilder.redirectErrorStream(true);
        String lines="";

        try {
            Process process = processBuilder.start();

            // 读取Python脚本的输出
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                lines+=line;
            }

            // 等待Python脚本执行完成
            int exitCode = process.waitFor();
            if (exitCode != 0) {
                System.out.println("Python script exited with error code: " + exitCode);
            }

            reader.close();
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
        return lines;
    }
}

hello.py

def say_hello():
    print("hello")

if __name__=="__main__":
    say_hello()