警报之后如何检索上传的文件并将其发送到Apex类?
同样在APEX类中,我们用于接收发送文件的输入参数类型是什么?
组件代码
<lightning:fileUpload label="Upload Multiple files"
multiple="false"
accept=".pdf, .png, .jpg"
recordId="{!v.recordId}"
aura:id="multipleUpload"
onuploadfinished="{!c.handleUploadFinished}" />
JScontroller
({
handleUploadFinished: function (component, event, helper) {
// Get the list of uploaded files
var uploadedFiles = event.getParam("files");
alert("Files uploaded length : " + uploadedFiles.length);
}
})
答案 0 :(得分:0)
请查看文档:
闪电文件上传组件,上传文件并将其附加到记录中。
使用以下属性指定要附加文件的记录:
recordId
=&gt; String
=&gt; The record Id of the record that the uploaded file is associated to.
如果要验证文件或对其执行某些逻辑,请使用下面提供的回调函数:
onuploadfinished
=&gt; Action
=&gt; The action triggered when files have finished uploading.
文档显示了回调函数的示例:
({
handleUploadFinished: function (cmp, event) {
// Get the list of uploaded files
var uploadedFiles = event.getParam("files");
alert("Files uploaded : " + uploadedFiles.length);
}
})
正如您所看到的,该功能会收到一个名为files
的事件,可以进行检查。
答案 1 :(得分:0)
在发送docId的状态下,您可以使用JSON.stringify(uploadedFiles [0])以字符串形式发送文件
({
handleUploadFinished: function (component, event, helper) {
var uploadedFiles = event.getParam("files");
var action = cmp.get("c.saveDoc");
action.setParams({
parentId : cmp.get("v.myRecordId"),
contentDocId : uploadedFiles[0].documentId
});
action.setCallback(this, function(response) {
var state = response.getState();
if (state === "SUCCESS") {
var toastEvent = $A.get("e.force:showToast");
toastEvent.setParams({
"title": "Success!",
"message": "File "+uploadedFiles[0].name+" Uploaded successfully."
});
toastEvent.fire();
var cmpEvent = cmp.getEvent("cmpEvent");
cmpEvent.fire();
}
else {
console.log("Fail");
}
});
$A.enqueueAction(action);
}
})