[Java] @PathVariable为空时指定默认值的操作

@RequestMapping(value = {"/timeline/{uid}", "/timeline/{uid}/{size}"})
public ModelAndView getTimeline(@PathVariable(value="uid" ) String articleUserId,
@PathVariable(value="size" , required = false) Integer size,
ModelAndView modelAndView) {
if(size == null) size = 50;
//逻辑
}

http://www.leixingke.com/article/timeline/leixing
http://www.leixingke.com/article/timeline/leixing/100

@RequestMapping(value={"/user/{id}/{name}"})
public User getUser(@PathVariable(value="id",required=false) Integer id,@PathVariable(value="name",required=false) String name ){
System.out.println("--------------:"+id+","+name);
User user=new User(id,name);
return user;
}

/**
* http://localhost:8080/helloWorld/user/1/zhangsan
* http://localhost:8080/helloWorld/user/1
* http://localhost:8080/helloWorld/user
* @param id
* @param name
* @return
*/
@RequestMapping(value={"/user/{id}/{name}","/user/{id}","/user"})
public User getUser(@PathVariable(value="id",required=false) Integer id,@PathVariable(value="name",required=false) String name ){
System.out.println("--------------:"+id+","+name);
User user=new User(id,name);
return user;
}