你应该打电话给 p.waitFor（）; 以便您的Java程序在外部进程执行完之后才会继续运行。

You should perhaps call p.waitFor(); so that your Java program doesn't move on until after the external process has finished executing.

Update 1：还要确保你正在读取 p.getErrorStream（）和 p.getInputStream（）$ c中的所有字节$ C>。如果不这样做可能会导致此过程停止。

Update 1: Also make sure you are reading all the bytes out of p.getErrorStream() and p.getInputStream(). Failure to do so may hang the process.

更新2：您可能还需要检查错误代码的进程返回代码。进程返回代码通过 waitFor（）的返回值访问。

Update 2: You may also want to check the process return code for an error code. The process return code is accessed via waitFor()'s return value.