我想在openSSL文件夹的bin目录下运行命令。我想从C:\ OpenSSL-Win32 \ bin \目录运行该命令。我需要执行以下命令: Openssl dgst -sha1 -sign PrivateKey.pem -out Record1.sha1 Message.txt
我的代码如下:
import java.io.*;
public class TestExec {
public static void main(String[] args) {
try {
File directory1 = new File("C:\\OpenSSL-Win32\\bin\\");
System.out.println(directory1.toString());
String[] commandArray = {"Openssl dgst -sha1 -sign PrivateKey.pem -out Record1.sha1 Message.txt"};
Process p2 = Runtime.getRuntime().exec(commandArray, null, directory1);
} catch (IOException e) {
e.printStackTrace();
}
}
}
我收到以下IOException:
java.io.IOException: Cannot run program "Openssl dgst -sha1 -sign PrivateKey.pem -out Record1.sha1 Message.txt" (in directory "C:\OpenSSL-Win32\bin"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at package1.TestExec.main(TestExec.java:10)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
... 3 more
请帮我解决这个问题。谢谢。
答案 0 :(得分:0)
设置工作目录并不意味着java将在该目录中查找可执行文件。它只是设置为可执行文件的当前目录。
我不确定Windows上关于PATH环境变量的确切行为,但是它具有当前设置的内容......
无论如何,我试着改用
String[] commandArray = {"C:\\OpenSSL-Win32\\bin\\Openssl\\Openssl dgst -sha1 -sign PrivateKey.pem -out Record1.sha1 Message.txt"};