Hi,
I'd like to get all the methods from a file (.text or .java), but I don't know the file's name yet (the user can choose it with jFileChooser). So I don't know the class's name. I have this code:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import javax.swing.JFileChooser;
public class Test {
public static void main(String[] args) throws Throwable {
JFileChooser fc = new JFileChooser();
File f = null;
if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
f = fc.getSelectedFile();
}
int errorCode = com.sun.tools.javac.Main.compile(new String[]{
"-classpath", "bin",
"-d", "../Tmp",
f.getAbsolutePath()});
System.out.println("errorCode:" + errorCode);
File classesDir = new File("../Tmp");
ClassLoader parentLoader = Test.class.getClassLoader();
URLClassLoader loader1 = new URLClassLoader(
new URL[]{classesDir.toURL()}, parentLoader);
BufferedReader br = new BufferedReader(new FileReader(f));
String load = "";
while ((load = br.readLine()) != null) {
if (load.startsWith("package")) {
load = load.replaceAll("package", "") + "." + f.getName().substring(0, f.getName().indexOf("."));
load = load.replace(";", "").trim();
break;
}
}
Class cls1 = loader1.loadClass(load);
Method[] methods = cls1.getDeclaredMethods();
for (Method m : methods) {
System.out.println(m.getName());
}
}
}
It works, if the class doesn't contains "extends", or uses another class's methods, but if it do, I get errors.
What should I do to fix these problems? I think it has to do something with "classpath" and "bin"