有没有人能给我一个Java CGLib Mixin类使用的好例子? 我已经找了很久,但它们似乎都不够简单易懂。请参考Mixin官方文档。
import static org.junit.Assert.*;
import net.sf.cglib.proxy.Mixin;
import org.junit.Before;
import org.junit.Test;
public class MixinTest {
@Test
public void test() {
Mixin mixin = Mixin.create(new Object[]{ new Class1(), new Class2() });
assertEquals(1, ((Interface1)mixin).method1());
assertEquals(2, ((Interface2)mixin).method2());
}
private interface Interface1 {
public int method1();
}
private interface Interface2 {
public int method2();
}
private static class Class1 implements Interface1 {
@Override
public int method1() {
return 1;
}
}
private static class Class2 implements Interface2 {
@Override
public int method2() {
return 2;
}
}
}
import java.lang.reflect.Method;
import java.nio.charset.Charset;
import java.util.Locale;
import net.sf.cglib.proxy.Mixin;
import net.sf.cglib.proxy.Mixin.Generator;
public class CglibTest {
public static void main(String[] args) throws Exception {
Generator gen = new Generator();
gen.setStyle(Mixin.STYLE_EVERYTHING);
gen.setDelegates(new Object[]{ Charset.defaultCharset(), Locale.getDefault()});
Mixin mixin = gen.create();
System.out.println(invokeMethod(mixin, "displayName"));
System.out.println(invokeMethod(mixin, "getCountry"));
}
public static Object invokeMethod(Object target, String methodName) throws Exception {
Method method = target.getClass().getMethod(methodName);
return method.invoke(target);
}
}
这个例子使用高级增强器并像混入一样工作: http://www.jroller.com/melix/entry/alternative_to_delegate_pattern_with