一个最简单的例子
基于hessian协议调用java方法
先定义一个接口：
public interface TestService {
public void test(String name);
}
实现这个接口：
public class TestServiceImpl implements TestService {
@Override
public void test(String name) {
System.out.println("test:" + name);
}
}
基于hessian模拟rpc怎么调用呢？
public class HessianSkeletonTest {
private static TestServiceImpl testService;
private static HessianSkeleton skeleton;
@BeforeClass
public static void initialize() {
testService = new TestServiceImpl();
skeleton = new HessianSkeleton(testService, TestService.class);
}
/**
* m 0x00 0x04 test
* S 0x00 0x0A helloworld
* z
*
* @throws IOException
*/
@Test
public void invoke() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
// m 0x00 0x04 test
bos.write('m');
bos.write(0x00);
bos.write(0x04);
bos.write("test".getBytes());
// S 0x00 0x0A helloworld
String s = "helloworld";
int length = 10;
bos.write('S');
length = (length << 16) >>> 16;
bos.write(length >>> 8);
bos.write((length << 8) >>> 8);
bos.write(s.getBytes());
// z
bos.write('z');
InputStream isToUse = new ByteArrayInputStream(bos.toByteArray());
OutputStream osToUse = new ByteArrayOutputStream();
AbstractHessianInput in = new HessianInput(isToUse);
AbstractHessianOutput out = new HessianOutput(osToUse);
try {
skeleton.invoke(in, out);
} catch (Throwable e) {
e.printStackTrace();
}
}
}
运行输出：
test:helloworld