SAPUI5 callFunction()调用后，Errorhandler未被调用

我正在尝试在 SAPUI5 中的向导中验证 IBAN。为此，我在 V2 ODataModel (sap.ui.model.odata.v2.ODataModel) 上使用 functionImport。

该请求返回了 202 状态代码，但实际上失败了。这是响应（来自 Firefox 网络选项卡）：

--1D57E7CB0DD73AB15048B36CC96993D60
Content-Type: multipart/mixed; boundary=1D57E7CB0DD73AB15048B36CC96993D61
Content-Length:         1303

--1D57E7CB0DD73AB15048B36CC96993D61
Content-Type: application/http
Content-Length: 1134
content-transfer-encoding: binary

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 950
dataserviceversion: 1.0
cache-control: no-cache, no-store
pragma: no-cache
content-id: id-1687346500037-256

{"d":{"CheckIBAN":{"__metadata":{"type":"XXXX"},"AccountID":"XXXXXX","IBAN":"DEXXXX","BankID":"","WithInOutPayment":true,"SepaNotifText":"XXX"}}}
--1D57E7CB0DD73AB15048B36CC96993D61--

--1D57E7CB0DD73AB15048B36CC96993D60
Content-Type: application/http
Content-Length: 1111
content-transfer-encoding: binary

HTTP/1.1 400 Bad Request
Content-Type: application/json;charset=utf-8
Content-Length: 991
dataserviceversion: 1.0

{"error":{"code":"XXX/076","message":{"lang":"de","value":"XXX"},"innererror":{"application":{"component_id":"XXX","service_namespace":"XXX","service_id":"XXXX","service_version":"0001"},"transactionid":"XXX","timestamp":"XXX","Error_Resolution":{"SAP_Transaction":"XXX","SAP_Note":"XXXX"},"errordetails":[{"code":"XXX/076","message":"XXX","propertyref":"","severity":"error","target":""}]}}}
--1D57E7CB0DD73AB15048B36CC96993D60--

（删除所有机密内容）这是浏览器控制台中的结果：

所以它必须在某个地方注册。我注册回调的代码如下：

this.SERVICE.functionImport("CheckIBAN", XXX.Constants.HTTP_POST, XXX, true, {
            fnSuccess: jQuery.proxy(function (oData) {
                fnCallback(oData);
            }, this),
            fnError: fnError
        });

请注意，functionImport 函数只是 sap.ui.model.odata.v2.ODataModel.callFunction 的包装器，并且执行相同的操作。

无论我输入什么（正确或错误的输入），它总是调用fnSuccess。

当我使用 ODataModel 的 read 函数（所以只是一个简单的 GET-request）时，一切正常，并且在发生错误时触发 fnError 。

P粉432930081239 天前546

SAPUI5 callFunction()调用后，Errorhandler未被调用

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