后端获取前台参数的几种方法

1.前台通过URL传递，后端利用@RequestParam来接收

serverUrl + '/items/refresh?itemSpecIds=' + itemSpecIds

@GetMapping("/refresh")
public void refresh(
        @RequestParam String itemSpecIds) {}

2.前台通过url\传递，后台通过@PathVariable来接收

serverUrl + '/index/sixNewItems/' + rootCatId, {}

@GetMapping("/sixNewItems/{rootCatId}")
public void sixNewItems(
        @PathVariable Integer rootCatId) {}

3.前台通过body中json传递，后台通过@RequestBody来接收

axios.post(serverUrl + '/passport/regist', userBO)

public void PostMapping(@RequestBody UserBO userBO){}