SimpleUrlHandlerMapping的Java配置(春季启动) [英] Java configuration of SimpleUrlHandlerMapping (Spring boot)
问题描述
我有一个现有的Spring Web应用程序,该应用程序使用两个扩展AbstractController的控制器.我想将Spring Boot集成到应用程序中,以便我们可以将其作为独立的应用程序运行.
I have an existing Spring web application, that uses two controllers, which extend AbstractController. I want to integrate Spring Boot into the application, so that we can run it as a standalone application.
我遇到了一个问题,因为Spring并未将调用转发给我的控制器.如何将控制器映射到"/app/*"之类的URL模式?
I am facing a problem, because Spring is not forwarding the calls to my controller. How can I map the controller to an URL pattern like "/app/*"?
SampleController.java
SampleController.java
@Controller("myController")
public class SampleController extends AbstractController {
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
response.getWriter().print("Hello world!");
return null;
}
}
Application.java
Application.java
@EnableAutoConfiguration
@Configuration
@ComponentScan
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
@Bean
public SimpleUrlHandlerMapping sampleServletMapping() {
SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();
Properties urlProperties = new Properties();
urlProperties.put("/index", "myController");
mapping.setMappings(urlProperties);
return mapping;
}
}
启动应用程序时,我收到以下消息:
When I start the application I get the following message:
INFO [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] Mapped URL path [/index] onto handler 'myController'
但是当我向/index发送请求时,会收到以下消息:
But when I send a request to /index, I get following messages:
DEBUG [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping] Looking up handler method for path /index
DEBUG [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping] Did not find handler method for [/index]
DEBUG [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] Matching patterns for request [/index] are [/**]
DEBUG [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] URI Template variables for request [/index] are {}
DEBUG [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] Mapping [/index] to HandlerExecutionChain with handler [org.springframework.web.servlet.resource.ResourceHttpRequestHandler@11195d3e] and 1 interceptor
推荐答案
SimpleUrlHandlerMappings
已排序,并且为
SimpleUrlHandlerMappings
are ordered and, as described in the javadoc the default is Integer.MAX_VALUE
which means that they have the lowest possible precedence. This causes ResourceHttpRequestHandler
(which is mapped to /**
and has an order of Integer.MAX_VALUE - 1
by default) to take precedence over the mapping for your controller.
更新您的sampleServletMapping()
方法,以将映射顺序设置为小于Integer.MAX_VALUE - 1
的值.例如:
Update your sampleServletMapping()
method to set your mapping's order to a value that's less than Integer.MAX_VALUE - 1
. For example:
@Bean
public SimpleUrlHandlerMapping sampleServletMapping() {
SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();
mapping.setOrder(Integer.MAX_VALUE - 2);
Properties urlProperties = new Properties();
urlProperties.put("/index", "myController");
mapping.setMappings(urlProperties);
return mapping;
}
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