Java中ProcessBuilder应用实例

系列说明

浅析Java.lang.Runtime类

浅析Java.lang.Process类

浅析Java.lang.ProcessBuilder类

可以使用java中的ProcessBuilder执行本地命令或脚本等工作

以下是一个简单的使用java调用本地python脚本的例子

List<String> commands=new ArrayList();
commands.add("python");
commands.add(pkg);
commands.add("--ad=test");
//...其它参数添加
processBuilder.command(commands);
processBuilder.directory(path);//切换工作目录
processBuilder.redirectErrorStream(true);
Process process = processBuilder.start();
StringBuilder result = new StringBuilder();
final BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
try {
       String line;
       while ((line = reader.readLine()) != null) {
           result.append(line);
           LOGGER.info(processBuilder.command().toString() + " --->: " + line);
       }
} catch (IOException e) {
       LOGGER.warn("failed to read output from process", e);
} finally {
       IOUtils.closeQuietly(reader);
}
process.waitFor();
int exit = process.exitValue();
if (exit != 0) {
    throw new IOException("failed to execute:" + processBuilder.command() + " with result:" + result);
} else {
    return exit;
}   

更多例子：JDK5.0新特性系列---7.使用ProcessBuilder执行本地命令