Question

我无法在这里看到模糊映射问题的位置。我在我的控制器中使用了新的Spring MVC注释@GetMapping和@PostMapping，因为我将Spring版本更改为5.0.0M1。

WebXml.java

public class WebXml implements WebApplicationInitializer {
@Override
public void onStartup(ServletContext container) throws ServletException {
    AnnotationConfigWebApplicationContext webXml = new AnnotationConfigWebApplicationContext();
    webXml.register(WebAppConfig.class);

    DispatcherServlet dispatcherServlet = new DispatcherServlet(webXml);
    dispatcherServlet.setContextConfigLocation("/WEB-INF/applicationContext.xml");

    ServletRegistration.Dynamic dispatcher = container.addServlet("mvc-dispatcher", dispatcherServlet);
    dispatcher.setLoadOnStartup(1);
    dispatcher.addMapping("/");

    container.addListener(new ContextLoaderListener(webXml));

    /** This is useful because current browsers typically do not - set a 
        character encoding even if specified in the HTML page or form */
    Dynamic filter = container.addFilter("encodingFilter", CharacterEncodingFilter.class);
    filter.addMappingForUrlPatterns(null, Boolean.FALSE, "/*");
    filter.setInitParameter("forceEncoding", "true");

}

}

AbstractPessoaController

public abstract class AbstractPessoaController extends AbstractController {

protected final Logger LOG = LoggerFactory.getLogger(getClass());

@Override
protected void init(WebDataBinder binder) {
    SimpleDateFormat df = new SimpleDateFormat(DateUtil.DD_MM_YYYY);
    binder.registerCustomEditor(Date.class, new CustomDateEditor(df, Boolean.TRUE));
    binder.registerCustomEditor(String.class, "celular",  new TelefoneEditorSupport());
}

protected void criaPessoaPadrao(Pessoa pessoa) {
    pessoa.gerarCodigo();
    pessoa.setSexo(Sexo.MASCULINO);
    Usuario usuario = new Usuario();
    pessoa.setUsuario(usuario);
    usuario.setPessoa(pessoa);
}

}

AlunoController。

@Controller
@RequestMapping("/aluno")
public class AlunoController extends AbstractPessoaController {

public static final String ALUNO_LISTA = "aluno-lista";
public static final String ALUNO_CADASTRO = "aluno-cadastro";
public static final String ALUNO_HOME = "aluno.home";

@Autowired
private AlunoService service;

@GetMapping
public String cadastro(Model model) {
    Aluno aluno = new Aluno();
    criaPessoaPadrao(aluno);

    model.addAttribute("aluno", aluno);
    adicionaSexoAoModel(model);

    return ALUNO_CADASTRO;
}

@GetMapping("/lista")
public String lista(Model model) {
    List<Aluno> alunos = service.findAll();
    model.addAttribute("alunos", alunos);

    return ALUNO_LISTA;

}

@PostMapping
public String cadastroSubmit(Model model, @Valid Aluno aluno, BindingResult result) {
    model.addAttribute("aluno", aluno);
    adicionaSexoAoModel(model);

    if (result.hasErrors()) {
        return ALUNO_CADASTRO;
    }

    gravar(aluno, model);


    return ALUNO_CADASTRO;

}

private void gravar(Aluno aluno, Model model) {
    try {
        service.gravar(aluno);
        mensagemConfirmacao(model);
    } catch (NegocioException e) {
        LOG.error("Erro ao tentar gravar o aluno. ", e);
        mensagemErro(e.getMessage(), model);
    }
}

@Override
protected void init(WebDataBinder binder) {
    super.init(binder);
    binder.registerCustomEditor(String.class, "altura",  new CustomNumberEditor(Double.class, Boolean.FALSE));
}

private void adicionaSexoAoModel(Model model) {
    model.addAttribute("sexo", CollectionUtils.arrayToList(Sexo.values()));
}

}

我得到了一个例外：

引起：java.lang.IllegalStateException：找到了不明确的映射。无法映射＆＃39; alunoController＆＃39;豆方法 public java.lang.String br.com.activepersonal.AlunoController.cadastro（org.springframework.ui.Model）到{[/ aluno]，methods = [GET]}：已经有了＆＃39; alunoController＆＃39; bean方法 public java.lang.String br.com.activepersonal.AlunoController.lista（org.springframework.ui.Model）已映射。在org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod（AbstractHandlerMethodMapping.java:212）在org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods（AbstractHandlerMethodMapping.java:184）在org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods（AbstractHandlerMethodMapping.java:144）在org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet（AbstractHandlerMethodMapping.java:123）在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet（RequestMappingHandlerMapping.java:126）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1637）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1574）

发生了另一个错误：

java.lang.IllegalStateException：无法初始化上下文，因为已存在根应用程序上下文 - 检查web.xml中是否有多个ContextLoader *定义！在org.springframework.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:277）在org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:106） at org.apache.catalina.core.StandardContext.listenerStart（StandardContext.java:4715） at org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5179）在org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）在org.apache.catalina.core.ContainerBase $ StartChild.call（ContainerBase.java:1403）在org.apache.catalina.core.ContainerBase $ StartChild.call（ContainerBase.java:1393） at java.util.concurrent.FutureTask.run（Unknown Source） at java.util.concurrent.ThreadPoolExecutor.runWorker（Unknown Source） at java.util.concurrent.ThreadPoolExecutor $ Worker.run（Unknown Source）在java.lang.Thread.run（未知来源）

任何帮助我该如何解决？感谢。

Spring MVC 5：使用新的Spring MVC Annotations发现的模糊映射

0 个答案: