The server cannot or will not process the request due to something ...

放到服务器的时候，只有这点错误提示！！！！
控制台也没有任何的错误信息，特别崩溃。。。。
后来发现是页面里面出现了日期类型，没有写相关的converter。因此而出错。干脆把日期类型删掉。或者写一个converter

404-Bad Request

Type Status Report

Description The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).