1.应用程序设置全局可执行
添加安装路径到全局变量中，并执行source指令使其生效
export PATH=$PATH:/the/path/to/software
source /etc/profile
2.在代码中配置调用程序的指令，并在Service中引入
coverage: command: coverage
@Value("${coverage.command}")
private String coverageCommand;
3.编写命令执行方法
/*
*调用命令并将执行日志写入文件中
*/
public void exeCmd(String commandStr, String logFile) {
BufferedReader br = null;
String line = null;
StringBuilder stringBuild = new StringBuilder();
try {
Process p = Runtime.getRuntime().exec(commandStr);
br = new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = br.readLine()) != null) {
stringBuild.append(line + "\n");
log.info(line);
try (OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(new String(logFile.getBytes("utf-8"))), "utf-8")) {
out.append(stringBuild);
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
/*
*调用命令并返回全部命令执行日志
*/
public String getVariable(String command) throws IOException {
BufferedReader br = null;
String line = null;
List<String> strings = new ArrayList<>();
StringBuilder stringBuild = new StringBuilder();
try {
Process p = Runtime.getRuntime().exec(command);
br = new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = br.readLine()) != null) {
stringBuild.append(line + "\n");
strings.add(line);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
return strings.toString();
}
4.如命令执行时间过长，可先返回命令调用情况，后续进行任务的更新操作
ExecutorService executorService = Executors.newFixedThreadPool(2);
CompletableFuture<Integer> future = CompletableFuture.supplyAsync(new Supplier<Integer>() {
@Override
public Integer get() {
log.info("开始执行算法-------");
exeCmd(commendStr, outLog());
log.info("算法执行结束");
File txtFile = new File(outLog);
//根据实际加工逻辑进行更新或其他操作
if (txtFile.exists()) {
task.setSuccessTime(new Date());
task.setTaskStatus("SUCCESS");
} else {
task.setErrorTime(new Date());
task.setTaskStatus("ERROR");
}
taskMapper.updateTaskInfo(task);
return 3;
}
}, executorService);
future.thenAccept(e -> System.out.println(e));
