錯誤信息：responseText: "<html><head><title>Apache Tomcat/7.0.67 - Error report</title><style><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 404 - /WEB-INF/pages/[{"fieldName":"姓名","fileId":31,"id":77,"status":"0"},{"fieldName":"密碼","fileId":31,"id":78,"status":"0"},{"fieldName":"賬號","fileId":31,"id":79,"status":"0"}].jsp</h1><HR size=\"1\" noshade=\"noshade\"><p><b>type</b> Status report</p><p><b>message</b> <u>/WEB-INF/pages/[{"fieldName":"姓名","fileId":31,"id":77,"status":"0"},{"fieldName":"密碼","fileId":31,"id":78,"status":"0"},{"fieldName":"賬號","fileId":31,"id":79,"status":"0"}].jsp</u></p><p><b>description</b> <u>The requested resource is not available.</u></p><HR size=\"1\" noshade=\"noshade\"><h3>Apache Tomcat/7.0.67</h3></body></html>"
錯誤描述 ：ajax 請求 明明後臺代碼已經執行 並返回了json 卻 一直跳到error
經分析是請求沒有返回狀態碼，這是因爲我用的是SpringMVC框架，前後端使用JSON傳遞數據，因爲返回的是對象，而忘記了添加
@ResponseBody 或者 @RestController
註解，所以 Spring對我的返回值進行了映射，但是映射結果又對應不到視圖，所以返回了404