关于delete请求，后台接收不到数据

在前端用axios需要这样写

/**
 * 删除数据
 */
export function del(url, data = {}) {
  return axios.delete(url, { data: qs.stringify(data) })
}

在浏览器中传输参数是在Request Payload中的，与以往的formdata不同

后台接收需要额外的方法

后台要想从Request Payload中得到自己想要的数据,就要从流中来获取数据，具体的代码为

ong evalutorId = null;

//从Request Payload中获取数据,从流中来获取数据
ServletInputStream is;
try {
is = request.getInputStream();
int nRead = 1;
int nTotalRead = 0;
byte[] bytes = new byte[10240];
while (nRead > 0) {
nRead = is.read(bytes, nTotalRead, bytes.length - nTotalRead);
if(nRead > 0)
nTotalRead = nTotalRead + nRead;
}
// str为evalutorId=20
String str = new String(bytes, 0, nTotalRead, "utf-8");
String[] split = str.split("=");
evalutorId = Long.parseLong(split[1]);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}

参考：https://blog.csdn.net/Your_heart_private/article/details/71436210