Reading-notes

Spring RequestMapping

• This request hadles(Maps) the http method (request) we must notice that the RequestMapping has no default , so it may map to any http request.

• Using @RequestMapping With Producible and Consumable to use produce : we use @RequestMapping in combination with the @ResponseBody annotation.(Response)

• To use consume : we use to consume @RequestMapping in combination with the @RequestBody annotation.(Request)

RequestMapping With Path Variables

• Single @PathVariable —-> ex : @RequestMapping(value = “/ex/foos/{id}”, method = GET) @ResponseBody

• public String getFoosBySimplePathWithPathVariable( @PathVariable String id) {

• return “Get a specific Foo with id=” + id; } Here you can notice that we passed one variable in the path {id}

• Multiple @PathVariable ——> ex: @RequestMapping(value = “/ex/foos/{fooid}/bar/{barid}”, method = GET) @ResponseBody

• public String getFoosBySimplePathWithPathVariables (@PathVariable long fooid, @PathVariable long barid) {

• return “Get a specific Bar with id=” + barid + “ from a Foo with id=” + fooid; }

RequestMapping With Request Parameters

• it’s used to bind a web request parameter to the parameter of the handler method

@RequestMapping — a Fallback for All Requests

-This is used to implement a fallback for all requests using http methods. we use the (*) to annotate for all requests , ex :

• @RequestMapping(value = “*”, method = RequestMethod.GET)

• @ResponseBody

• public String getFallback() {

return “Fallback for GET Requests”; }

this summary