上一篇java调Python脚本时没有返回错误的日志提醒行等，在这里补上，主要用java.lang.Process.getErrorStream() 方法获取子进程的错误流​​。数据流获取由该Process对象表示的进程的错误输出流的管道的数据。

1、java代码：

public static void main(String[] args) {
		Process proc;
		try {
			String[] args1 = new String[] { "python", "C:\\project\\pytools\\runpythonfile.py"};
			proc = Runtime.getRuntime().exec(args1);
			// 用输入输出流来截取结果
			BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream(), "GBK"));
			//错误流
			BufferedReader error = new BufferedReader(new InputStreamReader(proc.getErrorStream()));
			
			System.out.println("start...");
			
			String line = null;
			while ((line = in.readLine()) != null) {
				System.out.println("=====python返回结果：" + line);
				if (line.contains("[{")) {
					System.out.println("======最想要的结果：" + line);
					JSONArray fromObject = JSONObject.parseArray(line);
					System.out.println(fromObject);
				}
			}
			
			String err = null;
			while ((err = error.readLine()) != null) {
				System.out.println("=====error：" + err);
			}
			
			System.out.println("end...");
			in.close();
			proc.waitFor();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
	

2、结果：