Spring 405 POST boot method not supported?

Question

How is the POST method not supported by Spring Boot MVC ?! I am trying to implement a simple post method that accepts a list of entities: here is my code

@RestController(value="/backoffice/tags") public class TagsController { @RequestMapping(value = "/add", method = RequestMethod.POST) public void add(@RequestBody List<Tag> keywords) { tagsService.add(keywords); } } 

Click this url like this:

 http://localhost:8090/backoffice/tags/add 

Request body:

 [{"tagName":"qweqwe"},{"tagName":"zxczxczx"}] 

I get:

 { "timestamp": 1441800482010, "status": 405, "error": "Method Not Allowed", "exception": "org.springframework.web.HttpRequestMethodNotSupportedException", "message": "Request method 'POST' not supported", "path": "/backoffice/tags/add" } 

EDIT :

Debug Spring Web Request Handler

  public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.checkRequest(request); protected final void checkRequest(HttpServletRequest request) throws ServletException { String method = request.getMethod(); if(this.supportedMethods != null && !this.supportedMethods.contains(method)) { throw new HttpRequestMethodNotSupportedException(method, StringUtils.toStringArray(this.supportedMethods)); } else if(this.requireSession && request.getSession(false) == null) { throw new HttpSessionRequiredException("Pre-existing session required but none found"); } } 

The only two methods in supportedMethods are {GET,HEAD}

Answer 1

You have an error in defining the RestController annotation. According to the docs this is:

public @interface RestController {

/ ** * The value may indicate a sentence for the logical component name, * to be converted to a Spring bean in case of component auto-detection. * @ return the suggested name of the component, if any * @since 4.0.1 * / String value () by default "";

}

This means that the value entered ("/ backoffice / tags") is the name of the controller, not the path that it is accessible to.

Add @RequestMapping("/backoffice/tags") to the controller class and remove the value from the @RestController annotation.

EDIT: A fully working example, according to the comment that it does not work - try using this code, please, and run locally from the IDE.

build.gradle

 buildscript { ext { springBootVersion = '1.2.5.RELEASE' } repositories { mavenCentral() } dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") classpath("io.spring.gradle:dependency-management-plugin:0.5.2.RELEASE") } } apply plugin: 'java' apply plugin: 'eclipse' apply plugin: 'idea' apply plugin: 'spring-boot' apply plugin: 'io.spring.dependency-management' jar { baseName = 'demo' version = '0.0.1-SNAPSHOT' } sourceCompatibility = 1.8 targetCompatibility = 1.8 repositories { mavenCentral() } dependencies { compile("org.springframework.boot:spring-boot-starter-web") testCompile("org.springframework.boot:spring-boot-starter-test") } eclipse { classpath { containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER') containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8' } } task wrapper(type: Wrapper) { gradleVersion = '2.3' } 

Tag.java

 package demo; import com.fasterxml.jackson.annotation.JsonCreator; import com.fasterxml.jackson.annotation.JsonProperty; public class Tag { private final String tagName; @JsonCreator public Tag(@JsonProperty("tagName") String tagName) { this.tagName = tagName; } public String getTagName() { return tagName; } @Override public String toString() { final StringBuilder sb = new StringBuilder("Tag{"); sb.append("tagName='").append(tagName).append('\''); sb.append('}'); return sb.toString(); } } 

SampleController.java

 package demo; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import java.util.List; @RestController @RequestMapping("/backoffice/tags") public class SampleController { @RequestMapping(value = "/add", method = RequestMethod.POST) public void add(@RequestBody List<Tag> tags) { System.out.println(tags); } } 

DemoApplication.java

 package demo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } } 

Answer 2

Actually, when the method name is available, but the type of the method is different from the required type, therefore, this exception will throw 405.

Answer 3

I came across the same error when developing. Make sure the URL path is correctly mapped to what you are checking. Hope this solves the problem.