我有这段代码:
package biz.tugay.springJuly18.config;
/* User: koray@tugay.biz Date: 18/07/15 Time: 15:09 */
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
@SuppressWarnings(value = "unused")
public class MyWebAppInnit extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class<?>[]{RootConfigClass.class};
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class<?>[]{ServletConfigClass.class};
}
@Override
protected String[] getServletMappings() {
return new String[]{"/"};
}
}
和ServletConfig.class
package biz.tugay.springJuly18.config;
/* User: koray@tugay.biz Date: 18/07/15 Time: 15:10 */
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
@Configuration
@ComponentScan(basePackages = "biz.tugay.springJuly18.web")
public class ServletConfigClass {
@Bean
public ViewResolver viewResolver() {
InternalResourceViewResolver resolver =
new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
resolver.setExposeContextBeansAsAttributes(true);
return resolver;
}
}
最后是一个控制器:
package biz.tugay.springJuly18.web;
/* User: koray@tugay.biz Date: 18/07/15 Time: 12:53 */
import biz.tugay.springJuly18.service.MyService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class MyWeb {
@Autowired
private MyService myService;
@RequestMapping("/test")
public ModelAndView helloWorld() {
ModelAndView mv = new ModelAndView();
mv.addObject("message", myService.sayHello());
mv.setViewName("koko");
return mv;
}
}
当我将此部署到Tomcat并转到/ test时,我将被重定向到 koko.jsp 。那么为什么没有 @EnableWebMvc ?
就能解决这个问题根据这个答案here它应该不是吗?
这是 RootConfig.java
package biz.tugay.springJuly18.config;
/* User: koray@tugay.biz Date: 18/07/15 Time: 15:10 */
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan(basePackages = "biz.tugay.springJuly18.service")
public class RootConfigClass {
}
答案 0 :(得分:5)
DispatcherServlet
有两个字段
/** List of HandlerMappings used by this servlet */
private List<HandlerMapping> handlerMappings;
/** List of HandlerAdapters used by this servlet */
private List<HandlerAdapter> handlerAdapters;
其值决定如何处理请求(以及其他内容)。当容器初始化DispatcherServlet
时,将初始化这些字段并使用值填充这些字段。值来自您指定的上下文配置。如果您的上下文配置未提供至少一个相应类型的值,则DispatcherServlet
会使用某些默认值。
这些默认值包含在名为DispatcherServlet.properties
的文件中,该文件与DispatcherServlet
位于同一个包中。
对于HandlerMapping
,值(类名)是
org.springframework.web.servlet.HandlerMapping=org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,\
org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping
org.springframework.web.servlet.HandlerAdapter=org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,\
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,\
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter
AnnotationMethodHandlerAdapter
州的javadoc
实现映射处理程序的
HandlerAdapter
接口 基于HTTP路径,HTTP方法和请求参数的方法 通过RequestMapping
注释表达。
换句话说,此实现还使用带有@RequestMapping
注释的方法。
但是,AnnotationMethodHandlerAdapter
已被弃用
在Spring 3.2中,支持RequestMappingHandlerAdapter
@EnabledWebMvc
会注册RequestMappingHandlerAdapter
,这会更复杂。