String 컴파일

CompilerTest.java
package test; import test.target.Test; public class CompilerTest { public static void main(String[] args) throws Exception { String code = "package test.target;"+ "public class TestImp implements Test{"+ " public void testPrint() {"+ " System.out.println(\"test ok\");"+ " }"+ "}"; StringCompiler cp = new StringCompiler(); cp.compile("TestImp",code); Class<?> clazz = Class.forName("test.target.TestImp"); Test t = (Test) clazz.newInstance(); t.testPrint(); } } StringCompiler.java
package test; import java.net.URI; import java.util.Arrays; import java.util.Iterator; import java.util.NoSuchElementException; import javax.tools.JavaCompiler; import javax.tools.JavaFileObject; import javax.tools.SimpleJavaFileObject; import javax.tools.ToolProvider; public class StringCompiler { public void compile(String fileName,String code) { JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); Iterable<? extends JavaFileObject> fileObjects; fileObjects = getJavaSourceFromString(fileName,code); String[] compileOptions = new String[] { "-d", "bin" }; Iterable<String> compilationOptionss = Arrays.asList(compileOptions); compiler.getTask(null, null, null, compilationOptionss, null, fileObjects).call(); } private Iterable<JavaSourceFromString> getJavaSourceFromString(String fileName,String code) { final JavaSourceFromString jsfs; jsfs = new JavaSourceFromString(fileName, code); return new Iterable<JavaSourceFromString>() { public Iterator<JavaSourceFromString> iterator() { return new Iterator<JavaSourceFromString>() { boolean isNext = true; public boolean hasNext() { return isNext; } public JavaSourceFromString next() { if (!isNext) throw new NoSuchElementException(); isNext = false; return jsfs; } public void remove() { throw new UnsupportedOperationException(); } }; } }; } } class JavaSourceFromString extends SimpleJavaFileObject { final String code; JavaSourceFromString(String name, String code) { super(URI.create("string:///" + name.replace('.', '/') + Kind.SOURCE.extension), Kind.SOURCE); this.code = code; } public CharSequence getCharContent(boolean ignoreEncodingErrors) { return code; } } Test.java
package test.target; public interface Test { public void testPrint(); }