Spring Boot + Angular文件上传HTTP 417错误

Question

After uploading any other file after 1st upload i am getting HTTP - 417 error and File Not uploaded message as defined under my Spring UploadController.java file.

Spring Boot + Angular file upload getting error 400 bad request

After resolving my above query i am facing error 417 my above query includes all set of codes too including my Spring Controller file plus my Angular Component too.

In short at a moment able to upload only 1 document everytime i need to clear browsing history & cookies to upload successfully again. Wierd no idea of this.

Answer 1

You have to reset your formData when you try to upload second file.

public formdata = new FormData(); 
    onSubmit() { 

    this.resetform();  //Order matters here
    let headers: any = new Headers(); 
    headers.append('Content-type', 'undefined'); 

    formData.append("selectFile", this.formData); 
    const req5 = new HttpRequest('POST', 'url as hosted on TOMCAT', formData, 
    reportProgress: true, 
    responseType: 'text' 
    }); 
    return this.httpClient.request(req5).subscribe(e => {( 
    console.log(e); 

    )} 
    } 

    resetform() { 
    this.formData = new FormData(); 
    }  

I hope it will solve your problem !!!