java - 为什么 REST Controller 返回 404 状态代码？

Question

我正在尝试更新数据库中的数据。我在前端使用 jQuery/AJAX，在后端使用 REST/MyBatis/MySQL。不幸的是，REST Controller 返回 404 状态代码。请查看我的 REST Controller 代码:

@RestController
@RequestMapping("/documents")
public class DocumentResources {

    private DocumentsMapper mapper;

    public DocumentResources(DocumentsMapper mapper) {
        this.mapper = mapper;
    }

    @PostMapping("/updateDocument")
    public List<Documents> updateDocument (@RequestBody Documents document) {
        mapper.updateDocument(document);
        return mapper.getAllDocuments();
    }
}

这是我的 DocumentsMapper 类代码:

@Mapper
public interface DocumentsMapper {
    @Select("select * from documents")
    List<Documents> getAllDocuments();

    @Update("UPDATE documents SET title = #{title}, author = #{author}, src = #{src} WHERE id =#{id}")
    void updateDocument(Documents document);
}

这是我的 AJAX 方法:

$( "#target" ).submit(function( event ) {
event.preventDefault();

var formData = {
    id : $("#target #id").val(),    
    title : $("#target #title").val(),
    author :  $("#target #author").val(),
    src: $("#target #src").val(),
    createTime : $("#target #createTime").val(),
    editTime : $("#target #editTime").val()
}

$.ajax({
        url: 'http://localhost:8088/documents/updateDocument',
        type : "POST",
        contentType : "application/json",
        data : JSON.stringify(formData),
        dataType : 'json',
        success : function(result) {
        },
          error: function() {
                window.location = "/error";
                console.log('error', arguments);
              },
                complete: function() {
                console.log('complete', arguments);
              }
            }).done(function() {
              window.location = "/documents";
              console.log('done', arguments);
            });
  });

更新

我刚刚尝试关闭 Spring Security 并且 POST 方法变得可以访问。以下是授权功能:

    protected void configure(HttpSecurity http) throws Exception {

     http
        .authorizeRequests()                                                                
            .antMatchers("/resources/**", "/signup", "/about").permitAll()
            .antMatchers("/administrator/**").hasRole("ADMIN") 
            .antMatchers("/users/**").hasRole("ADMIN")
            .antMatchers("/documents/**").hasRole("ADMIN") 
            .antMatchers("/db/**").access("hasRole('ADMIN') and hasRole('DBA')")            
            .anyRequest().authenticated()                                                   
        .and()
            .formLogin()
        .and()
            .logout().logoutSuccessUrl("/login?logout") 
        .and()
            .exceptionHandling().accessDeniedPage("/403")
//          .and()
//              .csrf()
                ;
}

更新

我尝试打开 SpringSecurity 但禁用 CSRF .csrf().disable()。之后 POST 方法就可以工作了。我认为禁用 CSRF 不是一个好主意。这可能会导致 XSS 攻击。所以我应该配置 CSRF token 生成及其交换。

Answer 1

1) Please check spring startup logs : you can get the url initialized for the project

2) 尝试放置应用程序的上下文路径，

these link myt be helpful : in spring MVC : How to Set Context root in Spring Mvc Project in spring boot : Add context path to Spring Boot application

sample url :

http://localhost:8088/ {contextPath}/documents/updateDocument

3) better use API documentation like swagger ui, you can try hitting the url easly and get the available urls in your controller classes.