嗨，我正试图从数据库中删除文章。我在postman中测试了我的java函数，但是没有。
我的组件.html

<div class="card" *ngFor="let car of article" style="width: 18rem;margin-right: 30px;">
  <div class="card-header bg-transparent">
    <div class="btn-group" role="group" aria-label="Basic example" *ngIf="car.idOwner !== -1" >
      <button type="button" class="btn btn-link"><i class="fas fa-pencil-alt"></i>&nbsp;Edit</button>
      <button type="button" class="btn btn-link"><i class="fas fa-trash-alt" (click)="removeArticle(car.idArticle)"></i>&nbsp;Supprimer</button>

我的组件.ts：

removeArticle(idArticle: number) {
    if(idArticle === undefined) {
      this.displayMessage("An error has occured while removing the article", 2);
      return;
    }
    if (confirm("Do you really want to delete this article?")) {
        this.articleServices.deleteArticle(idArticle)
        .pipe()
        .subscribe(data => {
          this.findAllArticles();
          this.displayMessage("article succfully removed", 1);
        });
    }
}

我的服务

deleteArticle(idArticle: number) {
    return this.http.delete<Article>(AppSettings.APP_URL + "/articles/" + idArticle);
}

删除.java：

@DeleteMapping("/{idArticle}")
public ResponseEntity deleteArticle(@PathVariable(name = "idArticle") Long idArticle) {
    if (idArticle == null) {
        return ResponseEntity.badRequest().body("Cannot remove article with null ID");
    }
    Article article = articleRepository.getOne(idArticle);
    if (article == null) {
        return  ResponseEntity.notFound().build();
    }
    articleRepository.delete(article);
    return ResponseEntity.ok("article removed with success");
}

我得到以下错误：
error httperrorresponse{标题：httpheaders，状态：200，状态文本：“确定”，url:“http://localhost：8080/courses/articles/2“，确定：false，…}错误：{错误：syntaxerror:在xmlhtt的json.parse（）处的位置0处的json中出现意外标记a…，文本：“article removed with success”}标题：httpheaders{normalizednames:map（0），lazyupdate:null，懒虫：ƒ} 消息：“http解析失败http://localhost：8080/courses/articles/2“name:”httperrorresponse“确定：错误状态：200 statustext:”确定“url:”http://localhost：8080/课程/文章/2“原型：httpresponsebase构造函数：ƒ httperrorresponse（init）proto:对象
我需要帮助。提前谢谢！