我有一个适用于其他请求映射的控制器,但是我无法使用@PathVariable
注释。
在this example中(参见“URI模板模式”),它有这个例子:
@RequestMapping(value="/owners/{ownerId}", method=RequestMethod.GET)
public String findOwner(@PathVariable String ownerId, Model model) {
Owner owner = ownerService.findOwner(ownerId);
model.addAttribute("owner", owner);
return "displayOwner";
}
我的代码如下所示:
@RequestMapping( value="/ViewReport/json", method = RequestMethod.GET)
public ModelAndView TestJson(final Model model){
model.addAttribute("fnord", "{\"hello\":\"awesome\"}");
return new ModelAndView("reportViewJson");
}
@RequestMapping( value="/ViewReport/jayson/{foobar}", method = RequestMethod.GET)
public ModelAndView TestJayz(final Model model, @PathVariable String foobar){
model.addAttribute("fnord", "{\"hello\":\""+foobar+"\"}");
return new ModelAndView("reportViewJson");
}
然后我有一个web.xml
文件,其中包含:
<servlet-mapping>
<servlet-name>autoreport</servlet-name>
<url-pattern>/ViewReport/jayson/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>autoreport</servlet-name>
<url-pattern>/ViewReport/json</url-pattern>
</servlet-mapping>
现在,当我导航到/ViewReport/json
时,我会按照我的预期获得JSON {"hello": "awesome"}
。但是,当我导航到/ViewReport/jayson/42
时,我得到了
HTTP Status 404 -
type Status report
message
description The requested resource () is not available.
Apache Tomcat/7.0.29
我对PathVariable
的使用有什么问题,我需要做些什么才能修复它?
当我的服务器启动时,它会吐出这些行:
[ INFO] 14:15(AbstractUrlHandlerMapping.java:registerHandler:315)
Mapped URL path [/ViewReport/json.*] onto handler 'reportViewController'
[DEBUG] 14:15(AbstractBeanFactory.java:doGetBean:246)
Returning cached instance of singleton bean 'reportViewController'
[ INFO] 14:15(AbstractUrlHandlerMapping.java:registerHandler:315)
Mapped URL path [/ViewReport/json/] onto handler 'reportViewController'
[DEBUG] 14:15(AbstractBeanFactory.java:doGetBean:246)
Returning cached instance of singleton bean 'reportViewController'
[ INFO] 14:15(AbstractUrlHandlerMapping.java:registerHandler:315)
Mapped URL path [/ViewReport/jayson/{foobar}] onto handler 'reportViewController'
当我提出请求时,我得到了这个:
[DEBUG] 20:45(DispatcherServlet.java:doService:823)
DispatcherServlet with name 'autoreport' processing GET request for [/ViewReport/jayson/fnord]
[ WARN] 20:45(DispatcherServlet.java:noHandlerFound:1108)
No mapping found for HTTP request with URI [/ViewReport/jayson/fnord] in DispatcherServlet with name 'autoreport'
答案 0 :(得分:2)
public ModelAndView TestJayz(final Model model, @PathVariable String foobar)
试试这个:
public ModelAndView TestJayz(@PathVariable String foobar, final Model model)
拿2:
尝试将web.xml中的映射更改为更通用的映射。例如:
<servlet-mapping>
<servlet-name>autoreport</servlet-name>
<url-pattern>/ViewReport/*</url-pattern>
</servlet-mapping>
我在我的测试web.xml中使用了/spring/*
,在我的控制器中使用了@RequestMapping(“/ blammy / {value}”),然后将请求发送到“{WEBROOT} / spring / blammy / testvalue” “{WEBROOT}”是我的测试应用的网络根源。
答案 1 :(得分:0)
请求映射相对于调度程序servlet映射(默认情况下,请参阅alwaysUseFullPath
和DefaultAnnotationHandlerMapping
中的AnnotationMethodHandlerAdapter
属性以获取更多信息。)
如果您请求资源/ViewReport/jayson/fnord
,则Spring mvc正在寻找映射到fnord
的处理程序。
您需要申请/ViewReport/jayson/ViewReport/jayson/fnord
答案 2 :(得分:0)
您是否尝试过 @PathVariable(value =“foobar”)String foobar ?
@RequestMapping( value="/ViewReport/jayson/{foobar}", method = RequestMethod.GET)
public ModelAndView TestJayz(final Model model, @PathVariable(value="foobar") String foobar){
model.addAttribute("fnord", "{\"hello\":\""+foobar+"\"}");
return new ModelAndView("reportViewJson");
}