我正在关注Spring 2.5教程并尝试将代码/设置更新到Spring 3.0。
在 Spring 2.5 中,我有 HelloController (供参考):
public class HelloController implements Controller {
protected final Log logger = LogFactory.getLog(getClass());
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
logger.info("Returning hello view");
return new ModelAndView("hello.jsp");
}
}
HelloController 的JUnit测试(供参考):
public class HelloControllerTests extends TestCase {
public void testHandleRequestView() throws Exception{
HelloController controller = new HelloController();
ModelAndView modelAndView = controller.handleRequest(null, null);
assertEquals("hello", modelAndView.getViewName());
}
}
但现在我将控制器更新为 Spring 3.0 ,它现在使用注释(我还添加了消息):
@Controller
public class HelloController {
protected final Log logger = LogFactory.getLog(getClass());
@RequestMapping("/hello")
public ModelAndView handleRequest() {
logger.info("Returning hello view");
return new ModelAndView("hello", "message", "THIS IS A MESSAGE");
}
}
知道我正在使用JUnit 4.9,有人可以解释一下如何对最后一个控制器进行单元测试吗?
答案 0 :(得分:25)
基于注释的Spring MVC的一个优点是它们可以直接测试,如下所示:
import org.junit.Test;
import org.junit.Assert;
import org.springframework.web.servlet.ModelAndView;
public class HelloControllerTest {
@Test
public void testHelloController() {
HelloController c= new HelloController();
ModelAndView mav= c.handleRequest();
Assert.assertEquals("hello", mav.getViewName());
...
}
}
这种方法有问题吗?
对于更高级的集成测试,reference in Spring documentation有一个org.springframework.mock.web。
答案 1 :(得分:21)
使用mvc:annotation-driven,您必须有两个步骤:首先使用HandlerMapping将请求解析为处理程序,然后您可以通过HandlerAdapter使用该处理程序执行该方法。类似的东西:
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("yourContext.xml")
public class ControllerTest {
@Autowired
private RequestMappingHandlerAdapter handlerAdapter;
@Autowired
private RequestMappingHandlerMapping handlerMapping;
@Test
public void testController() throws Exception {
MockHttpServletRequest request = new MockHttpServletRequest();
// request init here
MockHttpServletResponse response = new MockHttpServletResponse();
Object handler = handlerMapping.getHandler(request).getHandler();
ModelAndView modelAndView = handlerAdapter.handle(request, response, handler);
// modelAndView and/or response asserts here
}
}
这适用于Spring 3.1,但我想每个版本都必须存在一些变体。看看Spring 3.0代码,我会说DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter可以解决问题。
答案 2 :(得分:1)