在Spring 3.0中,我可以有一个可选的路径变量吗?
例如
@RequestMapping(value = "/json/{type}", method = RequestMethod.GET)
public @ResponseBody TestBean testAjax(
HttpServletRequest req,
@PathVariable String type,
@RequestParam("track") String track) {
return new TestBean();
}
这里我想/json/abc或/json调用相同的方法。
一个明显的解决方法是将类型声明为请求参数:
@RequestMapping(value = "/json", method = RequestMethod.GET)
public @ResponseBody TestBean testAjax(
HttpServletRequest req,
@RequestParam(value = "type", required = false) String type,
@RequestParam("track") String track) {
return new TestBean();
}
然后是/json?Type =abc&track=aa or /json?Track =rr将工作
谢谢Paul Wardrip
在我的例子中,我使用required。
@RequestMapping(value={ "/calificacion-usuario/{idUsuario}/{annio}/{mes}", "/calificacion-usuario/{idUsuario}" }, method=RequestMethod.GET)
public List<Calificacion> getCalificacionByUsuario(@PathVariable String idUsuario
, @PathVariable(required = false) Integer annio
, @PathVariable(required = false) Integer mes) throws Exception {
return repositoryCalificacion.findCalificacionByName(idUsuario, annio, mes);
}
你不能有可选的路径变量,但你可以有两个控制器方法调用相同的服务代码:
@RequestMapping(value = "/json/{type}", method = RequestMethod.GET)
public @ResponseBody TestBean typedTestBean(
HttpServletRequest req,
@PathVariable String type,
@RequestParam("track") String track) {
return getTestBean(type);
}
@RequestMapping(value = "/json", method = RequestMethod.GET)
public @ResponseBody TestBean testBean(
HttpServletRequest req,
@RequestParam("track") String track) {
return getTestBean();
}