Why REST controller returns 404 status code?

Question

I am trying to update data in my database. I am using jQuery/AJAX on frontend and REST/MyBatis/MySQL on backend. Unfortunately REST controller returns 404 status code. Please look at my REST controller code:

@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(); } }

Here is my DocumentsMapper class code:

@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); }

And here is my AJAX method:

$( "#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); }); });

Update

I've just tried to switch off Spring Security and POST method became accessible. Here is the authorization features:

 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() ; }

Update

I try to switch on SpringSecurity but disable CSRF .csrf().disable(). After that POST methods work. I think that disabling the CSRF is not a good idea. This may lead to XSS attacks. So I should configure CSRF-token generation and its interchange.

have you tried hitting your rest api via postman? What's the output then? — tryingToLearn
– tryingToLearn, Commented Oct 17, 2018 at 6:56
@Rinat can you check the logs, whether it shown "no mapping found for this url" , also please check after setting context path and try hitting with the new url, this link myt be helpful : stackoverflow.com/questions/40670654/… — Akhil S Kamath
– Akhil S Kamath, Commented Oct 17, 2018 at 7:04
@tryingtolearn output is: {"timestamp":"2018-10-17T07:08:26.074+0000","status":404,"error":"Not Found","message":"No message available","path":"/documents/updateDocuments"} — Rinat
– Rinat, Commented Oct 17, 2018 at 7:12
It means there is a context path set in your application which needs to be appended in each request. Are you using springboot? If yes , check for context path property in application.properties — tryingToLearn
– tryingToLearn, Commented Oct 17, 2018 at 7:14
@tryingtolearn only server.port and spring.datasource.url, spring.datasource.password, spring.datasource.username in my application.properties file. GET REST endpoints work, but POST not ((( — Rinat
– Rinat, Commented Oct 17, 2018 at 7:23

Akhil S Kamath · Accepted Answer · 2018-10-17 09:14:21Z

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

2) try putting context path for the application,

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.

Steve Nash · Accepted Answer · 2018-10-17 07:04:11Z

you need add projectName to addres eg : http://localhost:8088/projectName/documents/updateDocument

Andrew · Accepted Answer · 2018-10-17 11:29:40Z

0

I think you are missing @Autowired annotation in your code. Try adding this annotation before Constructor and try again. @Autowired public DocumentResources(DocumentsMapper mapper){this.mapper = mapper;}

edited Oct 17, 2018 at 11:29

Andrew

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answered Oct 17, 2018 at 7:00

Nagaraj S Kharvi

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1 Comment

Andrew Over a year ago

the context would have failed if OP'd had problems with injection.

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