关于java:PyCmdUtiljava

import com.alibaba.fastjson.JSON;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class PyCmdUtil {

    public static final String BLANK = " ";
    public static final String ERROR = "error";
    public static final String DATA = "data";

    public static final Map<String, List<String>> executeCmd(String cmdPre, String... args) {Map map = new HashMap();
        List errorList = new ArrayList();
        List dataList = new ArrayList();
        try {StringBuilder sb = new StringBuilder(cmdPre);
            for (String arg : args) {sb.append(BLANK);
                sb.append(arg);
            }
            System.out.println("executeCmd start:" + sb.toString());
            Process process = Runtime.getRuntime().exec(sb.toString());
            InputStream is = process.getInputStream();
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String content = br.readLine();
            while (content != null) {System.out.println(content);
                dataList.add(content);
                content = br.readLine();}

            BufferedReader errorReader = new BufferedReader(new InputStreamReader(process.getErrorStream()));
            content = errorReader.readLine();
            while (content != null) {System.out.println(content);
                errorList.add(content);
                content = br.readLine();}
        } catch (IOException e) {e.printStackTrace();
        }
        map.put(ERROR, errorList);
        map.put(DATA, dataList);
        System.out.println("executeCmd result:" + JSON.toJSONString(map));
        return map;
    }


}