java怎么调用bat脚本

要调用bat脚本，可以使用Java的ProcessBuilder类。下面是一个示例代码：

import java.io.IOException;  public class CallBatScript {     public static void main(String[] args) {         try {             // 创建ProcessBuilder对象，传入要执行的命令或脚本             ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "path_to_bat_script.bat");             // 启动进程             Process process = pb.start();                          // 等待进程执行结束             int exitCode = process.waitFor();                          // 打印进程输出和错误信息（可选）             System.out.println("Exit Code: " + exitCode);             System.out.println("Standard Output: " + readStream(process.getInputStream()));             System.out.println("Error Output: " + readStream(process.getErrorStream()));                      } catch (IOException | InterruptedException e) {             e.printStackTrace();         }     }          // 读取InputStream并将其转换为字符串     private static String readStream(java.io.InputStream is) throws IOException {         StringBuilder sb = new StringBuilder();         byte[] buf = new byte[1024];         int length;         while ((length = is.read(buf)) != -1) {             sb.append(new String(buf, 0, length));         }         return sb.toString();     } } 

请将上述代码中的path_to_bat_script.bat替换为你要调用的bat脚本的路径。