求助 调用linux命令失败的问题 在java里,调用linux命令。我怎么知道命令是失败还是成功的呢?我怎么获得失败的信息呢? 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 Reader reader = null; BufferedReader br = null; try { //Process pro = Runtime.getRuntime().exec("cmd /c dir"); Process pro = Runtime.getRuntime().exec("ls -wsad"); String line; reader = new InputStreamReader(pro.getErrorStream()); if(reader == null){ reader = new InputStreamReader(pro.getInputStream()); br = new BufferedReader(reader); while ((line = br.readLine()) != null) { System.out.println(line); } }else{ br = new BufferedReader(reader); while ((line = br.readLine()) != null) { System.out.println(line); } } } catch (IOException e1) { e1.printStackTrace(); }finally{ try { if(br != null) br.close(); if(reader != null) reader.close(); } catch (IOException e1) { e1.printStackTrace(); } } struts问题 来个人吧.实现没招了... 在hibernate中,当我们的数据库表是动态添加的时候,如何来处理映射文件..hbm.xml??? 现在企业用的多的是struts1还是2啊 关于J2EE开发工具的选择~ spring配置多个数据源问题 struts2里的action怎样获取表单里的大量数据? 求救:together for eclipse 不能安装! EJB QL问题 用Java Applet 进行Web编程时,如何限制输入域中可输入字符的长度!解决后马上给分!!! 请问下,jar里面类的源码怎么看 数据库更新时,前台页面为什么没有跟着更新?
BufferedReader br = null;
try {
//Process pro = Runtime.getRuntime().exec("cmd /c dir");
Process pro = Runtime.getRuntime().exec("ls -wsad");
String line;
reader = new InputStreamReader(pro.getErrorStream());
if(reader == null){
reader = new InputStreamReader(pro.getInputStream());
br = new BufferedReader(reader);
while ((line = br.readLine()) != null) {
System.out.println(line);
}
}else{
br = new BufferedReader(reader);
while ((line = br.readLine()) != null) {
System.out.println(line);
}
}
} catch (IOException e1) {
e1.printStackTrace();
}finally{
try {
if(br != null)
br.close();
if(reader != null)
reader.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}