java调用perl方式二
有两种方法，第一种是直接 Runtime.getRuntime().exec("...");
这里推荐第二种，可以得到输出和返回值：源代码如下：
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class ExecPerl {
public static void main(String args[]) {
String[] cmd = { "C:\\cygwin\\bin\\perl.exe", "sample.pl", "param1", "param2" };
StringBuffer resultStringBuffer = new StringBuffer();
String lineToRead = "";
// get Process to execute perl, get the output and exitValue
int exitValue = 0;
try {
Process proc = Runtime.getRuntime().exec(cmd);
InputStream inputStream = proc.getInputStream();
BufferedReader bufferedRreader = new BufferedReader(new InputStreamReader(inputStream));
// save first line
if ((lineToRead = bufferedRreader.readLine()) != null) {
resultStringBuffer.append(lineToRead);
}
// save next lines
while ((lineToRead = bufferedRreader.readLine()) != null) {
resultStringBuffer.append("\r\n");
resultStringBuffer.append(lineToRead);
}
// Always reading STDOUT first, then STDERR, exitValue last
proc.waitFor(); // wait for reading STDOUT and STDERR over
exitValue = proc.exitValue();
} catch (Exception ex) {
resultStringBuffer = new StringBuffer("");
exitValue = 2;
}
System.out.println("exit:" + exitValue);
System.out.println(resultStringBuffer.toString());
}
}
使用了 Process 后可以得到 Perl 的输出和返回值～
