@RequestParam用来接收:
1 用来处理简单的参数绑定
2 用来接收 Content-Type 是 application/x-www-form-urlencoded (这种格 式的数据例如 user=1234&pwd=1234)编码的内容,这是浏览器默认的 content-Type(请求内容)格式.
@RequestBody的用法:
1用来处理不是 application/x-www-form-urlencoded 编码的内容例如:application/json application/xml
参考内容:https://www.cnblogs.com/szlbm/p/5867529.html
https://blog.csdn.net/jiangcs520/article/details/70141901/
https://blog.csdn.net/leftfist/article/details/79053389
https://blog.csdn.net/qq_28702545/article/details/51719199