java判断网络是否连通

sprest

1. publicsynchronizedstaticString getIntelIp(String describe,String ip){
   
2. Process p=null;
   
3. BufferedReader in=null;
   
4. try{
   
5. p = Runtime.getRuntime().exec("cmd /c ping -n 1 "+ ip); // 此处1变大可以增加精确度，但影响测试速度
   
6. //缓冲读取
   
7. in = newBufferedReader(newInputStreamReader(p
   
8. .getInputStream(),"gbk"));
   
9. String temp = null;
   
10. StringBuffer strBuffer = newStringBuffer();
    
11. while((temp = (in.readLine())) != null)
    
12. strBuffer.append(temp);
    
13. // System.out.println(strBuffer.toString().matches(".*\(\d?\d% loss\).*"));
    
14. // System.out.println(strBuffer);
    
15. in.close();
    
16. if(strBuffer.toString().contains("请求超时")) {
    
17. returndescribe+"网络连接异常";
    
18. } else{
    
19. returndescribe+"网络连接正常";
    
20. }
    
21. } catch(IOException e) {
    
22. e.printStackTrace();
    
23. returndescribe+"监测网络异常";
    
24. }
    
25. }

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