我在尝试在Spring中提交表单时遇到了一些问题。每次我尝试我都会收到404错误。这是我的控制者：
@Controller
@RequestMapping("/admin/news")
public class NewsController {
@Autowired
private NewsService newsService;
@RequestMapping(value = "/create", method = RequestMethod.GET)
public String createNews(Model model) {
return "admin.news.create";
}
@RequestMapping(value = "/list", method = RequestMethod.GET)
public ModelAndView listNews(Model model) {
return listNews(1);
}
@RequestMapping(value = "/list/{pageIndex}", method = RequestMethod.GET)
public ModelAndView listNewsPage(@PathVariable int pageIndex) {
return listNews(pageIndex);
}
@RequestMapping(value = "/save", method = RequestMethod.POST)
public String saveNews(@Valid NewsDto newsDto, BindingResult bindingResult, Model model) {
if (!bindingResult.hasErrors()) {
newsService.save(newsDto);
model.addAttribute("created", true);
model.addAttribute("news", newsDto);
}
return "admin.news.create";
}
private ModelAndView listNews(int pageIndex) {
ModelAndView modelAndView = new ModelAndView("admin.news.list");
Page page = newsService.findAll(pageIndex);
modelAndView.addObject("page", page);
return modelAndView;
}
@ModelAttribute("news")
private NewsDto newsDtoModel() {
return new NewsDto();
}
}
这是表格（我正在使用Apache Tiles）：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="spring" %>
<div id="page-header">
<h3>Create a news</h3>
</div>
<div id="page-content">
<div class="panel">
<div class="panel-heading">
News creation form
</div>
<div class="panel-content">
<spring:form method="post" commandName="news" action="save">
<spring:input path="title" class="u-full-width" type="text" placeholder="Title of the news" required="true" />
<spring:errors path="title" cssClass="validation-error" />
<spring:textarea path="text" class="u-full-width" placeholder="News text" required="true" />
<spring:errors path="text" cssClass="validation-error" />
<input class="button-primary" type="submit" value="Submit" />
</spring:form>
</div>
</div>
</div>
我已经阅读并尝试了我在SO中找到的与此错误相关的所有解决方案，但没有运气，我也在表单操作中尝试了所有可能的路由组合，但我总是得到404错误。这是标题：
GET / admin / news / save HTTP / 1.1主机：myserver：8080接受： text / html的，应用/ XHTML + xml的，应用/ XML; Q = 0.9，图像/ WEBP， / 的; Q = 0.8 Accept-Encoding：gzip，deflate，sdch Accept-Language： en-US，en; q = 0.8，es; q = 0.6 Cookie： JSESSIONID = 2A3446E8A0A42C49B0ECF8EE2C38C917 DNT：1 Referer： myserver：8080 / admin用户代理：Mozilla / 5.0（Windows NT 6.3; WOW64）AppleWebKit / 537.36（KHTML，像Gecko）Chrome / 39.0.2171.95 Safari浏览器/ 537.36
HTTP / 1.1 404 Not Found Cache-Control：no-cache，no-store，max-age = 0， 必须重新验证内容 - 语言：内容长度：1000 内容类型：text / html; charset = UTF-8日期：星期五，2014年12月19日17:11:24 GMT到期：0 Pragma：无缓存服务器：Apache-Coyote / 1.1 X-Content-Type-Options：nosniff X-Frame-Options：DENY X-XSS-Protection：1;模式=块
有什么想法吗？
编辑1：我会在这里添加我的配置。
的ApplicationContext：
@Configuration
@ComponentScan("com.davidmogar.alsa")
@PropertySource("classpath:application.properties")
@Import({WebMvcContext.class, PersistenceContext.class, SecurityContext.class})
public class ApplicationContext {
private static final String MESSAGE_SOURCE_BASE_NAME = "i18n/messages";
@Bean
MessageSource messageSource() {
ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
messageSource.setBasename(MESSAGE_SOURCE_BASE_NAME);
messageSource.setUseCodeAsDefaultMessage(true);
return messageSource;
}
@Bean
PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
}
WebAppInitializer：
public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
private static final String CHARACTER_ENCODING_FILTER_ENCODING = "UTF-8";
private static final String DISPATCHER_SERVLET_MAPPING = "/";
@Override
protected WebApplicationContext createRootApplicationContext() {
WebApplicationContext context = super.createRootApplicationContext();
// ConfigurableEnvironment env = (ConfigurableEnvironment) context.getEnvironment();
// env.setActiveProfiles();
return context;
}
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class<?>[]{ApplicationContext.class};
}
@Override
protected Class<?>[] getServletConfigClasses() {
return null;
}
@Override
protected String[] getServletMappings() {
return new String[]{DISPATCHER_SERVLET_MAPPING};
}
@Override
protected Filter[] getServletFilters() {
DelegatingFilterProxy delegatingFilterProxy = new DelegatingFilterProxy();
delegatingFilterProxy.setTargetBeanName("springSecurityFilterChain");
CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
characterEncodingFilter.setEncoding(CHARACTER_ENCODING_FILTER_ENCODING);
characterEncodingFilter.setForceEncoding(true);
OpenEntityManagerInViewFilter openEntityManagerInViewFilter = new OpenEntityManagerInViewFilter();
HiddenHttpMethodFilter hiddenHttpMethodFilter = new HiddenHttpMethodFilter();
return new Filter[]{delegatingFilterProxy, characterEncodingFilter, openEntityManagerInViewFilter,
hiddenHttpMethodFilter};
}
}
编辑2：
以下是网址的映射：
INFO - questMappingHandlerMapping - 映射 “{[/管理/消息/保存]，方法= [POST]，则params = []，标题= []，消耗= []，产生= []，定制= []}” 到公共java.lang.String com.davidmogar.alsa.web.admin.news.NewsController.saveNews（com.davidmogar.alsa.dto.news.NewsDto，org.springframework.validation.BindingResult，org.springframework.ui.Model）
答案 0 :(得分：1)
您的错误消息中的请求显示：
GET / admin / news / save HTTP / 1.1主机：myserver：8080接受：
它应该是一个POST，因为你只配置了你的controller / admin / news / save来处理POST
@RequestMapping（value =“/ save”，method = RequestMethod.POST）
您确定列出了正确的错误消息吗？您的jsp / html代码看起来是正确的，您如何提交表单？
答案 1 :(得分：0)
原来这个问题是由配置错误引起的。我不得不重写应用程序初始化程序以使其工作，但我还不确定问题是什么。这是新的初始化程序：
public class WebAppInitializer implements WebApplicationInitializer {
private static final String CHARACTER_ENCODING_FILTER_ENCODING = "UTF-8";
private static final String CHARACTER_ENCODING_FILTER_NAME = "characterEncoding";
private static final String CHARACTER_ENCODING_FILTER_URL_PATTERN = "/*";
private static final String DISPATCHER_SERVLET_NAME = "dispatcher";
private static final String DISPATCHER_SERVLET_MAPPING = "/";
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
rootContext.register(ApplicationContext.class);
configureDispatcherServlet(servletContext, rootContext);
EnumSet<DispatcherType> dispatcherTypes = EnumSet.of(DispatcherType.REQUEST, DispatcherType.FORWARD);
configureCharacterEncodingFilter(servletContext, dispatcherTypes);
servletContext.addListener(new ContextLoaderListener(rootContext));
}
private void configureDispatcherServlet(ServletContext servletContext, WebApplicationContext rootContext) {
ServletRegistration.Dynamic dispatcher = servletContext.addServlet(
DISPATCHER_SERVLET_NAME,
new DispatcherServlet(rootContext)
);
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping(DISPATCHER_SERVLET_MAPPING);
}
private void configureCharacterEncodingFilter(ServletContext servletContext, EnumSet<DispatcherType> dispatcherTypes) {
CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
characterEncodingFilter.setEncoding(CHARACTER_ENCODING_FILTER_ENCODING);
characterEncodingFilter.setForceEncoding(true);
FilterRegistration.Dynamic characterEncoding = servletContext.addFilter(CHARACTER_ENCODING_FILTER_NAME, characterEncodingFilter);
characterEncoding.addMappingForUrlPatterns(dispatcherTypes, true, CHARACTER_ENCODING_FILTER_URL_PATTERN);
}
}