Java 下载Zip文件（Spring-Aangular 2+；）存档文件的格式未知或已损坏

嗨，我正在尝试从服务器下载zip文件

DB:

春天：

@GetMapping("/download-applicant/{id}")
public ApplicantDocument downloadApplicantDocument(@PathVariable Long id){
    return applicantService.downloadApplicantDocument(id);
}

角度： 服务：

  applicantDocumentDownload(id){
    return this.http.get(this.url + '/Public/download-applicant/' + id, {responseType: 'arraybuffer'});
  }

组成部分

  getApplicantDocument(id) {
    this.applicantService.applicantDocumentDownload(id).subscribe(
      data => {
        const blob = new Blob([data], {
          type: 'application/zip'   // or   application/x-zip-compressed
        });
        const url = window.URL.createObjectURL(blob);
        window.open(url);
      },
      err => console.error(err),
      () => console.log('Vacancy zz load')
    );
  }

文件下载

但无法打开：