在我的 Spring Controller 中,我尝试获取 3 个路径变量:
@RequestMapping("{language}/{country}/{term}/catalogue") - @PathVariable String language, @PathVariable String country, @PathVariable String term
不幸的是,这不会被 servlet 识别。
有一些方法可以绑定(bind) URI,例如
@RequestMapping("**/catalogue")
还有@RequestMapping("{language}/{country}/catalogue")
将工作,但第三个路径变量它停止工作。Controller 本身也映射到特定路径。
路径变量有限制吗?是否有可能其他通配符(例如
@RequestMapping("**"))
的评估会更高?例如 2 个通配符比 3 个定义的值更具体。但通配符应该是实践中的最后一个匹配选项。关于出现的错误:
首先,通过通配符映射,它们将被匹配。当我禁用通配符映射时,
org.springframework.web.HttpRequestMethodNotSupportedException
抛出错误。15:42:53,881 DEBUG [http-bio-18091-exec-31] (org.springframework.web.servlet.DispatcherServlet) - Handler execution resulted in exception - forwarding to resolved error view: ModelAndView: reference to view with name 'errors/exception'; model is null
org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'GET' not supported
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodResolver.resolveHandlerMethod(AnnotationMethodHandlerAdapter.java:665)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:431)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at [device detection filter]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Controller 方法:
@RequestMapping(value = "{language}/{country}/{term}/catalogue", method = RequestMethod.GET)
public ModelAndView catalogue(HttpServletRequest request, HttpServletResponse response, @PathVariable("language") String language, @PathVariable("country") String country, @PathVariable("term") String term, @RequestParam(value = "d", defaultValue = "") String device, @RequestParam(value = "embedded", defaultValue = "false") String embedded, @RequestParam(value = "id", defaultValue = "") String idString, @RequestParam(value = "nr", defaultValue = "") String nr) {
如题,这里都是请求映射 来自 Controller (抱歉,我无法在此处发布来自 Controller 的完整代码):
@Controller
@RequestMapping("xyz/")
public class Controller {
@RequestMapping(value = "{language}/{country}/{term}/catalogue", method = RequestMethod.GET)
@RequestMapping("**")
@RequestMapping("{language}/{country}/product")
@RequestMapping("{language}/{country}/product-detail")
@RequestMapping("{language}/{country}/product-search")
@RequestMapping("{language}/{country}/dealer-search")
@RequestMapping("{language}/{country}/product-finder")
@RequestMapping("{language}/{country}/table")
@RequestMapping("**/languages")
@RequestMapping("**/chooseLanguages")
}
感谢帮助。
最佳答案
试试这个。不要忘记 ("lang")
在方法参数的路径变量声明中
@RequestMapping(value = "/{lang}/{count}/{term}", method=RequestMethod.GET)
public ResponseEntity<?> getSomething(@PathVariable("lang") String lang, @PathVariable("count") String count, @PathVariable("term") String term) {
关于java - Spring 多路径变量,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27985399/