2 consumes、produces 示例
cousumes的样例:
1 @Controller
2 @RequestMapping(value = "/pets", method = RequestMethod.POST, consumes="application/json")
3 public void addPet(@RequestBody Pet pet, Model model) {
4 // implementation omitted
5 }
方法仅处理request Content-Type为“application/json”类型的请求。
produces的样例:
1 @Controller
2 @RequestMapping(value = "/pets/{petId}", method = RequestMethod.GET, produces="application/json")
3 @ResponseBody
4 public Pet getPet(@PathVariable String petId, Model model) {
5 // implementation omitted
6 }
方法仅处理request请求中Accept头中包含了"application/json"的请求,同时暗示了返回的内容类型为application/json;
3 params、headers 示例
params的样例:
1 @Controller
2 @RequestMapping("/owners/{ownerId}")
3 public class RelativePathUriTemplateController {
4
5 @RequestMapping(value = "/pets/{petId}", method = RequestMethod.GET, params="myParam=myValue")
6 public void findPet(@PathVariable String ownerId, @PathVariable String petId, Model model) {
7 // implementation omitted
8 }
9 }
仅处理请求中包含了名为“myParam”,值为“myValue”的请求;
headers的样例:
1 @Controller
2 @RequestMapping("/owners/{ownerId}")
3 public class RelativePathUriTemplateController {
4
5 @RequestMapping(value = "/pets", method = RequestMethod.GET, headers="Referer=http://www.ifeng.com/")
6 public void findPet(@PathVariable String ownerId, @PathVariable String petId, Model model) {
7 // implementation omitted
8 }
9 }
仅处理request的header中包含了指定“Refer”请求头和对应值为“http://www.ifeng.com/
”的请求;
简介:
handler method 参数绑定常用的注解,我们根据他们处理的Request的不同内容部分分为四类:(主要讲解常用类型)
A、处理requet uri 部分(这里指uri template中variable,不含queryString部分)的注解: @PathVariable;
B、处理request header部分的注解: @RequestHeader, @CookieValue;
C、处理request body部分的注解:@RequestParam, @RequestBody;
D、处理attribute类型是注解: @SessionAttributes, @ModelAttribute;
1、 @PathVariable
当使用@RequestMapping URI template 样式映射时, 即 someUrl/{paramId}, 这时的paramId可通过 @Pathvariable注解绑定它传过来的值到方法的参数上。
示例代码:
- @Controller
- @RequestMapping("/owners/{ownerId}")
- public class RelativePathUriTemplateController {
- @RequestMapping("/pets/{petId}")
- public void findPet(@PathVariable String ownerId, @PathVariable String petId, Model model) {
- // implementation omitted
- }
- }
上面代码把URI template 中变量 ownerId的值和petId的值,绑定到方法的参数上。若方法参数名称和需要绑定的uri template中变量名称不一致,需要在@PathVariable("name")指定uri template中的名称。