我无法将数据放入模型中，因为Spring没有将bean连接到控制器，引用是null。 Bean接口和与控制器相同的包中的实现。我尝试通过在控制器中实现ApplicationContextAware来列出可用的bean（也尝试在方法setApplicationContext中使用输出到控制台进行测试，但是方法没有被调用，没有输出）但它也是{{1 }}。我使用自动配置，接口的实现，用作在servlet配置类中启用null注释的bean，@Component。这是控制器：
@ComponentScan当我启动测试时打印“资源为空：
真正
开始测试
触发资源的构造函数“
在package webapp.mvc;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class HomeController implements ApplicationContextAware {
public QuoteResource quoteResource;
public ApplicationContext context;
public HomeController() {
}
@Autowired
public HomeController(QuoteResource resource) {
this.quoteResource = resource;
System.out.println("Constructor with resource triggered");
}
@RequestMapping(value="/", method=RequestMethod.GET)
public String home(){
System.out.println("Controller triggered");
return "home";
}
@RequestMapping(value="/random", method=RequestMethod.GET)
public String randomQuotes(Model model){
model.addAttribute("randomQuote", quoteResource.getQuote());
return "random";
}
@Autowired
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.context = applicationContext;
}
}
行中nullPointerException失败
这是测试：
model.addAttribute("randomQuote", quoteResource.getQuote()); package spr1;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.web.servlet.view.InternalResourceView;
import webapp.mvc.HomeController;
import webapp.mvc.QuoteResource;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
import static org.springframework.test.web.servlet.setup.MockMvcBuilders.*;
public class RandomQuoteTest {
@Autowired
public QuoteResource resource;
@Before
public void initObjects() {
System.out.println("Resource is null:");
System.out.println(resource == null);
}
@Test
public void test() throws Exception {
System.out.println("Start test");
HomeController controller = new HomeController(resource);
MockMvc mvc = standaloneSetup(controller)
.setSingleView(new InternalResourceView("src/main/webapp/views/random.jsp"))
.build();
mvc.perform(get("/random"))
.andExpect(view().name("random"));
}
}
是一个用QuoteResource注释的实现的接口，但它的构造函数没有被调用（我在构造函数中写入控制台）
答案 0 :(得分：0)
似乎@Autowired在mvc测试中不起作用。如果控制器手动创建HomeController controller = new HomeController(new XmlQuoteResource());而不自动装配QuoteResource，它就可以工作。在重定向示例中找到spring-mvc-showcase中的解决方案。