同志们好,我在java代码中这样写的:
public class LinuxTest {
public static void main(String[] args) {
LinuxTest test = new LinuxTest();
test.chmod("/usr/java/apache-tomcat-7.0.62/webapps/UploadSpringMVC/upload/tlbbtestfile.txt");
}
/**
* 修改Linux目录权限
*
* @param path
*/
public boolean chmod(String path) {
// LogUtil.LogCommInfo("------修改权限路劲 path="+path);
boolean flag = false;
String newPath = "/home/hadoop/hah.txt";
InputStream in = null;
try {
String cmdStrs[] = new String[] { "cp", path, newPath };
System.out.println(cmdStrs.toString());
Process pro = Runtime.getRuntime().exec(cmdStrs);
for (int i = 0; i < cmdStrs.length; i++) {
System.out.print(cmdStrs[i] + " ");
}
pro.waitFor();
in = pro.getInputStream();
BufferedReader read = new BufferedReader(new InputStreamReader(in));
String result = read.readLine();
System.out.println("INFO:" + result);
// child.waitFor();
flag = true;
} catch (Exception e) {
flag = false;
// LogUtil.LogCommInfo("修改权限异常 = "+e);
e.printStackTrace();
}
return flag;
}
这个能够执行,没有报错,但是文件没有复制到目标目录,如果在终端上执行cp命令文件就复制过去了,我想知道这个问题怎么解决啊,看到网上说可能是权限的问题,如果是的话我怎么指定特定linux用户来执行呢。。。。。