注解

@controller

http请求

@RestController

相当于 @ResponseBody @Controller

@RequestMapping 配置url

spring-boot-starter-thymeleaf

@RequestMapping(value={"/hello","/hi"},method=RequestMethod.GET)

get post要加上处理不同的业务

可以给class加@RequestMapping 

然后里面要加url上面要加

@PathVariable 获取url路径中的数据

@RequestParam 获取请求参数的值

@GetMapping 组合注解

@RequestMapping(value="/say",method = RequestMethod.GET)public String sayid(@PathParam("id") Integer id)

/say?id=xxxxx

@RequestMapping(value="/hello/{id}",method = RequestMethod.GET)public String say(@PathVariable("id") Integer id)

/hello/33232

public String saym(@RequestParam(value = "id",required = false, defaultValue="0") Integer id)

@GetMapping

@PostMapping