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一:编写程序实现执行cmd指令.
1.1 思路分析:使用Process的exec()将cmd的执行结果通过java的IO流输出到IDE的控制台即可.
Process的exec()方法.看一下源码,发现有好几个构造方法,传单个cmd的,传cmd数组的等.
public Process exec(String command) throws IOException {
return exec(command, null, null);
}
public Process exec(String command, String[] envp) throws IOException {
return exec(command, envp, null);
}
1.2 这里实现单个命令结果输出.cmd的指令是ping www.baidu.com.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class DosUtil {
public static void main(String[] args) {
// Java调用 dos命令
String cmd = "ping www.baidu.com";
try {
Process process = Runtime.getRuntime().exec(cmd);
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);
content = br.readLine();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
运行结果:(出现乱码)