java調用shell命令並擷取執行結果

使用到Process和Runtime兩個類，傳回值通過Process類的getInputStream()方法擷取

package ark;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;public class ReadCmdLine {public static void main(String args[]) {Process process = null;List<String> processList = new ArrayList<String>();try {process = Runtime.getRuntime().exec("ps -aux");BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));String line = "";while ((line = input.readLine()) != null) {processList.add(line);}input.close();} catch (IOException e) {e.printStackTrace();}for (String line : processList) {System.out.println(line);}}}

調用shell指令碼，判斷是否正常執行，如果正常結束，Process的waitFor()方法返回0

public static void callShell(String shellString) {try {Process process = Runtime.getRuntime().exec(shellString);int exitValue = process.waitFor();if (0 != exitValue) {log.error("call shell failed. error code is :" + exitValue);}} catch (Throwable e) {log.error("call shell failed. " + e);}}