通过java运行Shell命令
我试图通过java运行cmd命令。“资源管理器”、“记事本”等命令正在运行,但“目录”、“路径”等命令不起作用。它引发异常,输出显示:- 执行命令java.io.IOException时出现问题:无法运行程序“path”:CreateProcess error=2,系统找不到指定的文件通过java运行Shell命令,java,process,exec,Java,Process,Exec,我试图通过java运行cmd命令。“资源管理器”、“记事本”等命令正在运行,但“目录”、“路径”等命令不起作用。它引发异常,输出显示:- 执行命令java.io.IOException时出现问题:无法运行程序“path”:CreateProcess error=2,系统找不到指定的文件 boolean exc(String command){ Process p;String pingResult=""; try{ p=Runtime.ge
boolean exc(String command){
Process p;String pingResult="";
try{
p=Runtime.getRuntime().exec(command);
BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
System.out.println(inputLine);
pingResult += inputLine;
}
in.close();
return true;
}catch(Exception e){
System.out.println("Problem in Executing Command "+e.toString());
return false;
}
}
请参阅,如果我的代码中有任何问题。程序用于列出指定路径中的目录
你可以使用下面的代码,你应该得到你想要的输出
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package checkapplicationisopen;
import java.io.*;
public class TestExec {
public static void main(String[] args) {
TestExec testExec=new TestExec();
System.out.println(testExec.getDirectoryList("C:\\Documents"));
}
/**
*
* @param path directory path which you want to retrieve the directory and files
* @return the list of directories and Files with the size
*
*/
public String getDirectoryList(String path)
{
String dirList="";
try {
Process p = Runtime.getRuntime().exec("cmd /C dir "+path);
BufferedReader in = new BufferedReader(
new InputStreamReader(p.getInputStream()));
String line = null;
while ((line = in.readLine()) != null) {
System.out.println(line);
dirList+=line;
}
} catch (IOException e) {
e.printStackTrace();
}
return dirList;
}
}
用于列出指定路径中目录的程序
你可以使用下面的代码,你应该得到你想要的输出
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package checkapplicationisopen;
import java.io.*;
public class TestExec {
public static void main(String[] args) {
TestExec testExec=new TestExec();
System.out.println(testExec.getDirectoryList("C:\\Documents"));
}
/**
*
* @param path directory path which you want to retrieve the directory and files
* @return the list of directories and Files with the size
*
*/
public String getDirectoryList(String path)
{
String dirList="";
try {
Process p = Runtime.getRuntime().exec("cmd /C dir "+path);
BufferedReader in = new BufferedReader(
new InputStreamReader(p.getInputStream()));
String line = null;
while ((line = in.readLine()) != null) {
System.out.println(line);
dirList+=line;
}
} catch (IOException e) {
e.printStackTrace();
}
return dirList;
}
}
命令的值是多少?
?我以“dir”的形式发出命令。请发布一个完整的工作示例,演示该问题。例外是关于“路径”,而不是“目录”。是的。。。。但是dir也不起作用。没有dir命令,dir/cd/pwd是cmd的内置函数,命令的值是多少?我给出的命令是“dir”,请发布一个完整的工作示例来演示这个问题。例外是关于“路径”,而不是“目录”。是的。。。。但是dir也不起作用。没有dir命令,dir/cd/pwd是cmd的内置函数