[英]While trying to upload 5gb file using springboot application im getting out of memory error
[英]getting error on springboot while upload list of multipartfile
我正在嘗試上傳多個文件,但在上傳時遇到了問題。 有人可以建議有什么問題嗎?
我附上了我的代碼的相關片段以便更好地調試。
html代碼
<label>
welcome {{name}}, welcome to new app.
</label>
<div>
<input type="file" multiple placeholder="Select Files to be upload" accept=".xlsx" (change)=selectedfiles($event)>
</div>
上傳邏輯
selectedfiles(event){
this.selectedxlfiles=event.target.files;
this.fileandinstancekeyobj.filetoupload=this.selectedxlfiles;
this.fileandinstancekeyobj.instancekey=this.instancekey;
this.uploadservice.uploadtoserver(this.fileandinstancekeyobj).subscribe(result=>{
console.log(result);
})
}
上傳服務
uploadtoserver(selectedfileandinstacekeyobj): Observable<HttpEvent<{}>>{
let url:string=environment.url+'uploadfile';
const newrequest=new HttpRequest('POST',url,selectedfileandinstacekeyobj,{
reportProgress:true,
responseType:'text'
});
return this.http.request(newrequest);
}
彈簧啟動 controller
@RestController
public class uploadcontroller {
@PostMapping("/uploadfile")
public ResponseEntity<String> handleupload(@RequestBody uploaddto dto){
System.out.println("sucessfull");
System.out.println(dto.getInstancekey()+" "+dto.getFiletoupload().length);
return ResponseEntity.status(HttpStatus.OK).body("ok");
}
上傳DTO
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import org.springframework.web.multipart.MultipartFile;
class uploaddto {
List<MultipartFile> filetoupload;
String instancekey;
public uploaddto(List<MultipartFile> filetoupload, String instancekey) {
super();
filetoupload=new ArrayList<MultipartFile>();
this.filetoupload = filetoupload;
this.instancekey = instancekey;
}
public List<MultipartFile> getFiletoupload() {
return filetoupload;
}
public void setFiletoupload(List<MultipartFile> filetoupload) {
this.filetoupload = filetoupload;
}
public String getInstancekey() {
return instancekey;
}
public void setInstancekey(String instancekey) {
this.instancekey = instancekey;
}
}
我收到以下錯誤
[org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error:
Cannot deserialize instance of `java.util.ArrayList<org.springframework.web.multipart.MultipartFile>` out of START_OBJECT token;
nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException:
Cannot deserialize instance of `java.util.ArrayList<org.springframework.web.multipart.MultipartFile>` out of START_OBJECT token
at [Source: (PushbackInputStream); line: 1, column: 17] (through reference chain: com.example.demo.uploaddto["filetoupload"])]
任何建議將不勝感激
我正在添加這個答案,以便我可以幫助某人挽救他的一天,我所做的
上傳控制器的變化
this.selectedxlfiles=event.target.files;
const data:FormData=new FormData();
for(let i=0;i<this.selectedxlfiles.length;i++){
this.currentfile=this.selectedxlfiles[i];
data.append('selectedfile',this.currentfile);
}
data.append('instancekey',this.instancekey);
this.uploadservice.uploadtoserver(data).subscribe(Response=>{
console.log(Response);
})
上傳服務的變化
uploadtoserver(data:FormData): Observable<HttpEvent<{}>>{
let url:string=environment.url+'uploadfile';
// console.log(url);
// const data: FormData=new FormData();
// data.append('selectedfile',selectedfile);
// data.append('instancekey',instancekey);
const newrequest=new HttpRequest('POST',url,data,{
reportProgress: true,
responseType: 'text',
});
return this.http.request(newrequest);
//return this.http.post(url,selectedfiles);
}
springboot controller 的變化
@RestController
public class uploadcontroller {
@PostMapping("/uploadfile")
public ResponseEntity<String> handleupload(@ModelAttribute uploaddto dto){
System.out.println("sucessfull");
System.out.println(dto.getInstancekey()+" "+dto.getFiletoupload().length);
return ResponseEntity.status(HttpStatus.OK).body("ok");
}
controller @modelattribute 中唯一的變化
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.