Java程式碼

1. import java.io.InputStream;
2. public class Ping {
3. public static void main(String[] args) throws Exception { Runtime run = Runtime.getRuntime();
4. String cmdText = "ping 127.0.0.1";
5. Process process = run.exec(cmdText);
6. process.waitFor();
7. byte[] buffer = new byte[256];
8. int cnt = 0;
9. InputStream is = process.getInputStream();
10. while((cnt=is.read(buffer))>=0) {
11. System.out.print(new String(buffer,0,cnt));
12. }
13. }}

import java.io.InputStream;
public class Ping { 
   public static void main(String[] args) throws Exception {       Runtime run = Runtime.getRuntime();  
String cmdText = "ping  127.0.0.1";  
Process process = run.exec(cmdText);  
process.waitFor();  
byte[] buffer = new byte[256];  
int cnt = 0;  
InputStream is = process.getInputStream();  
while((cnt=is.read(buffer))>=0) {   
System.out.print(new String(buffer,0,cnt));  
} 
}}
 

測試可行-----------------------
正在 Ping 127.0.0.1 具有 32 位元組的資料:
來自 127.0.0.1 的回覆: 位元組=32 時間<1ms TTL=128
來自 127.0.0.1 的回覆: 位元組=32 時間<1ms TTL=128
來自 127.0.0.1 的回覆: 位元組=32 時間<1ms TTL=128
來自 127.0.0.1 的回覆: 位元組=32 時間<1ms TTL=128
127.0.0.1 的 Ping 統計資訊: 資料包: 已傳送 = 4，已接收 = 4，丟失 = 0 (0% 丟失)，往返行程的估計時間(以毫秒為單位): 最短 = 0ms，最長 = 0ms，平均 = 0ms



Java程式碼

1. import java.io.BufferedReader;
2. import java.io.InputStreamReader;
3. public class CallCmd {
4. public static void main(String[] args) {
5. BufferedReader br = null;
6. try {
7. Process p = Runtime.getRuntime().exec("ping 127.0.0.1");
8. br = new BufferedReader(new InputStreamReader(p.getInputStream()));
9. String line = null;
10. StringBuilder sb=new StringBuilder();
11. while ((line = br.readLine()) != null) { sb.append(line+"\n");
12. }
13. System.out.println(sb.toString());
14. } catch (Exception e) {
15. e.printStackTrace();
16. } finally {
17. if (br != null) {
18. try {
19. br.close();
20. } catch (Exception e) { e.printStackTrace();
21. }
22. }
23. }