The Java system calls the cmd command and executes the exe program
- 2020-05-07 19:37:47
- OfStack
Java invokes the cmd command and outputs the display information:
package com.anxin.cmd.test;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class Command {
public static void main(String[] args) {
try {
Runtime rt = Runtime.getRuntime();
Process pr = rt.exec("cmd /c dir"); // cmd /c calc
// Process pr = rt.exec("D:\\xunlei\\project.aspx");
BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream(), "GBK"));
String line = null;
while ((line = input.readLine()) != null) {
System.out.println(line);
}
int exitVal = pr.waitFor();
System.out.println("Exited with error code " + exitVal);
} catch (Exception e) {
System.out.println(e.toString());
e.printStackTrace();
}
}
}
Java three ways to start the native application EXE:
mode 1: use cmd mode
/**
* perform cmd The command
*
* @param command
* @throws IOException
*/
public static String executeCmd(String command) throws IOException {
log.info("Execute command : " + command);
Runtime runtime = Runtime.getRuntime();
Process process = runtime.exec("cmd /c " + command);
BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8"));
String line = null;
StringBuilder build = new StringBuilder();
while ((line = br.readLine()) != null) {
log.info(line);
build.append(line);
}
return build.toString();
}
executeCmd(start "AXAdWebBrowser" "D:\AXAdsBrowser\AXAdWebBrowser.exe");
second way: call cmd with ProcessBuilder
/**
* Start the application
*
* @param programName
* @return
* @throws IOException
*/
public static void startProgram(String programPath) throws IOException {
log.info(" Start the application: " + programPath);
if (StringUtils.isNotBlank(programPath)) {
try {
String programName = programPath.substring(programPath.lastIndexOf("/") + 1, programPath.lastIndexOf("."));
List<String> list = new ArrayList<String>();
list.add("cmd.exe");
list.add("/c");
list.add("start");
list.add("\"" + programName + "\"");
list.add("\"" + programPath + "\"");
ProcessBuilder pBuilder = new ProcessBuilder(list);
pBuilder.start();
} catch (Exception e) {
e.printStackTrace();
log.error(" Application: " + programPath + " Does not exist! ");
}
}
}
third way: launch the application using Desktop
/**
* Start the application
*
* @param programName
* @return
* @throws IOException
*/
public static void startProgram(String programPath) throws IOException {
log.info(" Start the application: " + programPath);
if (StringUtils.isNotBlank(programPath)) {
try {
Desktop.getDesktop().open(new File(programPath));
} catch (Exception e) {
e.printStackTrace();
log.error(" Application: " + programPath + " Does not exist! ");
}
}
}