Spring 引导，Java 配置 - 在名称为 'dispatcherServlet' 的 DispatcherServlet 中找不到带有 URI [/...] 的 HTTP 请求的映射
Spring Boot, Java Config - No mapping found for HTTP request with URI [/...] in DispatcherServlet with name 'dispatcherServlet'
这在 Whosebug 中是一个很常见的问题，但是 none 个相同问题的主题解决了我的问题。
我们有一个使用 xml 配置的模板配置，但现在我们正试图摆脱它并开始使用 Java 配置。
所以我有一个使用 Java 配置和 Spring 引导的新项目。我们还使用 JSP 和 Tiles 3.
问题是：它无法呈现我们的管理员登录页面。
代码如下：
主要配置class:
@SpringBootApplication
@EnableScheduling
@Import(OnAdminBeans.class)
public class AppConfig extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(AppConfig.class, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(AppConfig.class);
}
}
AppConfig.class 是主包。通过@SpringBootApplication带来的@ComponentScan，扫描mainpackage.config上的其他配置，所以导入视图配置class:
@Configuration
@EnableWebMvc
public class ViewConfig extends WebMvcConfigurerAdapter {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/adm/static/**").addResourceLocations("/adm/static/");
}
// @Override
// public void addViewControllers(ViewControllerRegistry registry) {
// registry.addViewController("/adm/login").setViewName("login-template-tiles");
// }
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
registry.viewResolver(viewResolver());
registry.viewResolver(jspViewResolver());
registry.viewResolver(tilesViewResolver());
}
@Bean
public LocaleResolver localeResolver() {
CookieLocaleResolver localeResolver = new CookieLocaleResolver();
localeResolver.setCookieName("locale");
localeResolver.setCookieMaxAge(30);
localeResolver.setDefaultLocale(new Locale("pt", "BR"));
return localeResolver;
}
@Bean
public MultipleViewResolver viewResolver() {
Map<String, ViewResolver> viewsResolvers = new HashMap<String, ViewResolver>();
viewsResolvers.put(MultipleViewResolver.ViewType.JSP.getKey(), jspViewResolver());
viewsResolvers.put(MultipleViewResolver.ViewType.TILES.getKey(), tilesViewResolver());
MultipleViewResolver viewResolver = new MultipleViewResolver();
viewResolver.setViewsResolvers(viewsResolvers);
viewResolver.setOrder(1);
return viewResolver;
}
@Bean
public InternalResourceViewResolver jspViewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/jsp/");
viewResolver.setSuffix(".jsp");
viewResolver.setViewClass(JstlView.class);
viewResolver.setOrder(2);
return viewResolver;
}
@Bean
public UrlBasedViewResolver tilesViewResolver() {
UrlBasedViewResolver viewResolver = new UrlBasedViewResolver();
viewResolver.setViewClass(TilesView.class);
viewResolver.setOrder(3);
return viewResolver;
}
@Bean
public TilesConfigurer tilesConfigurer() {
TilesConfigurer configurer = new TilesConfigurer();
configurer.setDefinitions("/WEB-INF/tile-defs/tiles-definitions.xml");
return configurer;
}
}
LoginController.class定义为：
@Controller
@RequestMapping(value = "/adm")
public class LoginController {
@RequestMapping(value = "/login")
public ModelAndView login() {
return new ModelAndView("login-template-tiles");
}
}
在 tiles-definitions.xml 中，我对登录模板磁贴有以下定义：
<definition name="login-template-tiles" template="/WEB-INF/jsp/adm/templates/login-template.jsp">
<put-attribute name="admin-title" value="Admin" />
<put-attribute name="content" value="/WEB-INF/jsp/adm/templates/sections/login/index.jsp" />
</definition>
请注意，这两个文件都存在。
鉴于 LoginController.login() 在我尝试访问 [ 时确实被调用 =70=]。但是显然找不到正确的 jsp 文件。
它returns一个404。启用 TRACE 后，我得到以下日志：
DispatcherServlet with name 'dispatcherServlet' processing GET request for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping@2118c09a] in DispatcherServlet with name 'dispatcherServlet'
Looking up handler method for path /WEB-INF/jsp/adm/templates/login-template.jsp
Did not find handler method for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping@2c148974] in DispatcherServlet with name 'dispatcherServlet'
No handler mapping found for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping@784c3547] in DispatcherServlet with name 'dispatcherServlet'
No handler mapping found for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport$EmptyHandlerMapping@533e0604] in DispatcherServlet with name 'dispatcherServlet'
Testing handler map [org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport$EmptyHandlerMapping@cfd1b4e] in DispatcherServlet with name 'dispatcherServlet'
No mapping found for HTTP request with URI [/WEB-INF/jsp/adm/templates/login-template.jsp] in DispatcherServlet with name 'dispatcherServlet'
如有任何建议，我们将不胜感激！
编辑：
行。通过调试，发现和内嵌的Tomcat有关系。除此之外，我不知道发生了什么。
编辑 2：
发现问题出在org.springframework.web.servlet.DispatcherServlet#getHandler。它根本找不到该请求的 HandlerMapping。我必须注册一个吗？
好的！找到问题了。
这个link帮助了我：https://samerabdelkafi.wordpress.com/2014/08/03/spring-mvc-full-java-based-config/
更具体地说是这个配置：
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
通过设置默认处理程序，我将不再获得白页，而是 JSP 代码 html，这清楚地告诉我 JSP 正在被发现，但是未渲染。
所以答案就在这个页面上：JSP file not rendering in Spring Boot web application
我缺少 tomcat-embed-jasper 神器。
将以下依赖项添加到您的 pom.xml
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
当我遇到类似问题时，这里的提示帮助了我。在我的配置中添加此片段后，我修复了它
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
这在 Whosebug 中是一个很常见的问题，但是 none 个相同问题的主题解决了我的问题。
我们有一个使用 xml 配置的模板配置，但现在我们正试图摆脱它并开始使用 Java 配置。
所以我有一个使用 Java 配置和 Spring 引导的新项目。我们还使用 JSP 和 Tiles 3.
问题是：它无法呈现我们的管理员登录页面。
代码如下：
主要配置class:
@SpringBootApplication
@EnableScheduling
@Import(OnAdminBeans.class)
public class AppConfig extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(AppConfig.class, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(AppConfig.class);
}
}
AppConfig.class 是主包。通过@SpringBootApplication带来的@ComponentScan，扫描mainpackage.config上的其他配置，所以导入视图配置class:
@Configuration
@EnableWebMvc
public class ViewConfig extends WebMvcConfigurerAdapter {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/adm/static/**").addResourceLocations("/adm/static/");
}
// @Override
// public void addViewControllers(ViewControllerRegistry registry) {
// registry.addViewController("/adm/login").setViewName("login-template-tiles");
// }
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
registry.viewResolver(viewResolver());
registry.viewResolver(jspViewResolver());
registry.viewResolver(tilesViewResolver());
}
@Bean
public LocaleResolver localeResolver() {
CookieLocaleResolver localeResolver = new CookieLocaleResolver();
localeResolver.setCookieName("locale");
localeResolver.setCookieMaxAge(30);
localeResolver.setDefaultLocale(new Locale("pt", "BR"));
return localeResolver;
}
@Bean
public MultipleViewResolver viewResolver() {
Map<String, ViewResolver> viewsResolvers = new HashMap<String, ViewResolver>();
viewsResolvers.put(MultipleViewResolver.ViewType.JSP.getKey(), jspViewResolver());
viewsResolvers.put(MultipleViewResolver.ViewType.TILES.getKey(), tilesViewResolver());
MultipleViewResolver viewResolver = new MultipleViewResolver();
viewResolver.setViewsResolvers(viewsResolvers);
viewResolver.setOrder(1);
return viewResolver;
}
@Bean
public InternalResourceViewResolver jspViewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/jsp/");
viewResolver.setSuffix(".jsp");
viewResolver.setViewClass(JstlView.class);
viewResolver.setOrder(2);
return viewResolver;
}
@Bean
public UrlBasedViewResolver tilesViewResolver() {
UrlBasedViewResolver viewResolver = new UrlBasedViewResolver();
viewResolver.setViewClass(TilesView.class);
viewResolver.setOrder(3);
return viewResolver;
}
@Bean
public TilesConfigurer tilesConfigurer() {
TilesConfigurer configurer = new TilesConfigurer();
configurer.setDefinitions("/WEB-INF/tile-defs/tiles-definitions.xml");
return configurer;
}
}
LoginController.class定义为：
@Controller
@RequestMapping(value = "/adm")
public class LoginController {
@RequestMapping(value = "/login")
public ModelAndView login() {
return new ModelAndView("login-template-tiles");
}
}
在 tiles-definitions.xml 中，我对登录模板磁贴有以下定义：
<definition name="login-template-tiles" template="/WEB-INF/jsp/adm/templates/login-template.jsp">
<put-attribute name="admin-title" value="Admin" />
<put-attribute name="content" value="/WEB-INF/jsp/adm/templates/sections/login/index.jsp" />
</definition>
请注意，这两个文件都存在。
鉴于 LoginController.login() 在我尝试访问 [ 时确实被调用 =70=]。但是显然找不到正确的 jsp 文件。
它returns一个404。启用 TRACE 后，我得到以下日志：
DispatcherServlet with name 'dispatcherServlet' processing GET request for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping@2118c09a] in DispatcherServlet with name 'dispatcherServlet'
Looking up handler method for path /WEB-INF/jsp/adm/templates/login-template.jsp
Did not find handler method for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping@2c148974] in DispatcherServlet with name 'dispatcherServlet'
No handler mapping found for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping@784c3547] in DispatcherServlet with name 'dispatcherServlet'
No handler mapping found for [/WEB-INF/jsp/adm/templates/login-template.jsp]
Testing handler map [org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport$EmptyHandlerMapping@533e0604] in DispatcherServlet with name 'dispatcherServlet'
Testing handler map [org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport$EmptyHandlerMapping@cfd1b4e] in DispatcherServlet with name 'dispatcherServlet'
No mapping found for HTTP request with URI [/WEB-INF/jsp/adm/templates/login-template.jsp] in DispatcherServlet with name 'dispatcherServlet'
如有任何建议，我们将不胜感激！
编辑： 行。通过调试，发现和内嵌的Tomcat有关系。除此之外，我不知道发生了什么。
编辑 2：
发现问题出在org.springframework.web.servlet.DispatcherServlet#getHandler。它根本找不到该请求的 HandlerMapping。我必须注册一个吗？
好的！找到问题了。
这个link帮助了我：https://samerabdelkafi.wordpress.com/2014/08/03/spring-mvc-full-java-based-config/
更具体地说是这个配置：
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
通过设置默认处理程序，我将不再获得白页，而是 JSP 代码 html，这清楚地告诉我 JSP 正在被发现，但是未渲染。
所以答案就在这个页面上：JSP file not rendering in Spring Boot web application
我缺少 tomcat-embed-jasper 神器。
将以下依赖项添加到您的 pom.xml
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
当我遇到类似问题时，这里的提示帮助了我。在我的配置中添加此片段后，我修复了它
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}