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894天前import java.io.BufferedReader; |
import java.io.IOException; |
import java.io.InputStream; |
import java.io.InputStreamReader; |
import java.io.OutputStream; |
|
/** |
* Create By Qiujuer |
* 2014-07-26 |
* <p/> |
* 执行命令行语句静态方法封装 |
*/ |
public class ProcessModel { |
//换行符 |
private static final String BREAK_LINE; |
//执行退出命令 |
private static final byte[] COMMAND_EXIT; |
//错误缓冲 |
private static byte[] BUFFER; |
|
/** |
* 静态变量初始化 |
*/ |
static { |
BREAK_LINE = "\n"; |
COMMAND_EXIT = "\nexit\n".getBytes(); |
BUFFER = new byte[32]; |
} |
|
|
/** |
* 执行命令 |
* |
* @param params 命令参数 |
* <pre> eg: "/system/bin/ping", "-c", "4", "-s", "100","www.qiujuer.net"</pre> |
* @return 执行结果 |
*/ |
public static String execute(String... params) { |
Process process = null; |
StringBuilder sbReader = null; |
|
BufferedReader bReader = null; |
InputStreamReader isReader = null; |
|
InputStream in = null; |
InputStream err = null; |
OutputStream out = null; |
|
try { |
process = new ProcessBuilder() |
.command(params) |
.start(); |
out = process.getOutputStream(); |
in = process.getInputStream(); |
err = process.getErrorStream(); |
|
out.write(COMMAND_EXIT); |
out.flush(); |
|
process.waitFor(); |
|
isReader = new InputStreamReader(in); |
bReader = new BufferedReader(isReader); |
|
String s; |
if ((s = bReader.readLine()) != null) { |
sbReader = new StringBuilder(); |
sbReader.append(s); |
sbReader.append(BREAK_LINE); |
while ((s = bReader.readLine()) != null) { |
sbReader.append(s); |
sbReader.append(BREAK_LINE); |
} |
} |
|
while ((err.read(BUFFER)) > 0) { |
} |
} catch (IOException e) { |
e.printStackTrace(); |
} catch (Exception e) { |
e.printStackTrace(); |
} finally { |
closeAllStream(out, err, in, isReader, bReader); |
|
if (process != null) { |
processDestroy(process); |
process = null; |
} |
} |
|
if (sbReader == null) |
return null; |
else |
return sbReader.toString(); |
} |
|
/** |
* 关闭所有流 |
* |
* @param out 输出流 |
* @param err 错误流 |
* @param in 输入流 |
* @param isReader 输入流封装 |
* @param bReader 输入流封装 |
*/ |
private static void closeAllStream(OutputStream out, InputStream err, InputStream in, InputStreamReader isReader, BufferedReader bReader) { |
if (out != null) |
try { |
out.close(); |
} catch (IOException e) { |
e.printStackTrace(); |
} |
if (err != null) |
try { |
err.close(); |
} catch (IOException e) { |
e.printStackTrace(); |
} |
if (in != null) |
try { |
in.close(); |
} catch (IOException e) { |
e.printStackTrace(); |
} |
if (isReader != null) |
try { |
isReader.close(); |
} catch (IOException e) { |
e.printStackTrace(); |
} |
if (bReader != null) |
try { |
bReader.close(); |
} catch (IOException e) { |
e.printStackTrace(); |
} |
} |
|
|
/** |
* 通过Android底层实现进程关闭 |
* |
* @param process 进程 |
*/ |
private static void killProcess(Process process) { |
int pid = getProcessId(process); |
if (pid != 0) { |
try { |
//android kill process |
android.os.Process.killProcess(pid); |
} catch (Exception e) { |
try { |
process.destroy(); |
} catch (Exception ex) { |
} |
} |
} |
} |
|
/** |
* 获取进程的ID |
* |
* @param process 进程 |
* @return |
*/ |
private static int getProcessId(Process process) { |
String str = process.toString(); |
try { |
int i = str.indexOf("=") + 1; |
int j = str.indexOf("]"); |
str = str.substring(i, j); |
return Integer.parseInt(str); |
} catch (Exception e) { |
return 0; |
} |
} |
|
/** |
* 销毁进程 |
* |
* @param process 进程 |
*/ |
private static void processDestroy(Process process) { |
if (process != null) { |
try { |
//判断是否正常退出 |
if (process.exitValue() != 0) { |
killProcess(process); |
} |
} catch (IllegalThreadStateException e) { |
killProcess(process); |
} |
} |
} |
}//源代码片段来自云代码http://yuncode.net |
|
