最近在做一个案例需要用java调用cmd执行python文件,但在获取返回结果的时候,中文出现了乱码。
代码及输出结果如下:
public static String predictPython(String path, String param) throws IOException, InterruptedException {
String exe = "python";
String command = path+"WEB-INF\\classes\\python\\faceRecognition.py";
String[] cmdArr = new String[] { exe, command, param, path+"WEB-INF\\classes\\python\\" };
System.out.println( exe + " " + command + " " + param + " " + path+"WEB-INF\\classes\\python\\" );
Process process = Runtime.getRuntime().exec(cmdArr);
BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
String pythonResult = "";
String line;
while ((line = in.readLine()) != null) {
pythonResult = line;
System.out.println("cmd返回结果:" + line);
}
in.close();
int result = process.waitFor();
System.out.println("执行结果:" + result);
return pythonResult;
}
输出结果:
解决方案:
只需要改一处地方,在实例化InputStreamReader的时候指定字符为GBK,更改后:
更改后的结果: