Question

我正尝试从Postman向我的服务器发送PUT请求，但我一直收到状态为400 Bad Request的错误，但是使用POST时，它可以按预期工作。

当我将注释@PutMapping更改为@PostMapping时，它可以正常工作，而无需进行其他任何更改。

我的控制器代码：

@RestController
@RequestMapping("/articles")
public class ArticleController {
private static final Logger LOG = LogManager.getLogger(ArticleController.class);

private ArticleService articleService;

@Value("${articles.default.page_size}")
private int articlesDefaultPageSize;

@Autowired
public void setArticleService(ArticleService articleService) {
    this.articleService = articleService;
}

@PutMapping("/update")
public ResponseEntity<Article> update(@ModelAttribute @Validated ArticleDTO articleDTO,
        @AuthenticationPrincipal CustomUserDetails currentUser) {
    LOG.trace(currentUser.getUsername() + " wants to update an article : " + articleDTO);
    Article a = articleService.updateExpertArticle(articleDTO, (Expert) currentUser.getUser());
    return ResponseEntity.ok(a);
}

}

我从邮递员发送的请求：

ArticleDTO类：

package org.mql.dto;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.multipart.MultipartFile;

import javax.validation.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import java.time.LocalDateTime;
import java.util.Arrays;

public class ArticleDTO {
private static final Logger LOG = LogManager.getLogger(ArticleDTO.class);

private String id;

    @NotNull
    @NotEmpty
    private String title;

    @NotNull
    @NotEmpty
    private String content;

    private MultipartFile[] images;

    private LocalDateTime creationDate;

    public ArticleDTO() {
        LOG.trace("--------Instantiate ArticleDTO -------");
    }

    public MultipartFile[] getImages() {
        return images;
    }

    public void setImages(MultipartFile... images) {
        LOG.trace("--------Set Images-------");
        this.images = images;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
        LOG.trace("--------Set Titles-------");
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
        LOG.trace("--------Set Content-------");
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
        LOG.trace("--------Set Id-------");
    }

    public LocalDateTime getCreationDate() {
        return creationDate;
    }

    public void setCreationDate(LocalDateTime creationDate) {
        LOG.trace("--------Set Date-------");
        this.creationDate = creationDate;
    }

    @Override
    public String toString() {
        return "ArticleDTO{" +
                "id='" + id + '\'' +
                ", title='" + title + '\'' +
                ", content='" + content + '\'' +
                ", images=" + Arrays.toString(images) +
                ", creationDate=" + creationDate +
                '}';
    }
}

我进入控制台：

Answer 1

尝试将@RequestBody添加到ArticleDTO。

请求使用POST进行工作，但使用PUT却遇到400错误

1 个答案: