I am trying to adapt the REST Controller example on the Spring Boot website.
Unfortunately I've got the following error when I am trying to access the localhost:8080/item URL.
{
"timestamp": 1436442596410,
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/item"
}
POM:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SpringBootTest</groupId>
<artifactId>SpringBootTest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<javaVersion>1.8</javaVersion>
<mainClassPackage>com.nice.application</mainClassPackage>
<mainClass>${mainClassPackage}.InventoryApp</mainClass>
</properties>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>${javaVersion}</source>
<target>${javaVersion}</target>
</configuration>
</plugin>
<!-- Makes the Spring Boot app executable for a jar file. The additional configuration is needed for the cmd: mvn spring-boot:repackage
OR mvn spring-boot:run -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>${mainClass}</mainClass>
<layout>ZIP</layout>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Create a jar with a manifest -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<mainClass>${mainClass}</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<!-- Import dependency management from Spring Boot. This replaces the usage of the Spring Boot parent POM file. -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.2.5.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- more comfortable usage of several features when developing in an IDE. Developer tools are automatically disabled when
running a fully packaged application. If your application is launched using java -jar or if it’s started using a special classloader,
then it is considered a 'production application'. Applications that use spring-boot-devtools will automatically restart whenever files
on the classpath change. -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>15.0</version>
</dependency>
</dependencies>
</project>
Starter-Application:
package com.nice.application;
@SpringBootApplication // same as @Configuration @EnableAutoConfiguration @ComponentScan
public class InventoryApp {
public static void main( String[] args ) {
SpringApplication.run( InventoryApp.class, args );
}
}
REST-Controller:
package com.nice.controller;
@RestController // shorthand for @Controller and @ResponseBody rolled together
public class ItemInventoryController {
public ItemInventoryController() {
}
@RequestMapping( "/item" )
public String getStockItem() {
return "It's working...!";
}
}
I am building this project with Maven. Started it as jar (spring-boot:run) and as well inside the IDE (Eclipse).
Console Log:
2015-07-09 14:21:52.132 INFO 1204 --- [ main] c.b.i.p.s.e.i.a.InventoryApp : Starting InventoryApp on 101010002016M with PID 1204 (C:\eclipse_workspace\SpringBootTest\target\classes started by MFE in C:\eclipse_workspace\SpringBootTest)
2015-07-09 14:21:52.165 INFO 1204 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7a3d45bd: startup date [Thu Jul 09 14:21:52 CEST 2015]; root of context hierarchy
2015-07-09 14:21:52.661 INFO 1204 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2015-07-09 14:21:53.430 INFO 1204 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2015-07-09 14:21:53.624 INFO 1204 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2015-07-09 14:21:53.625 INFO 1204 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.23
2015-07-09 14:21:53.731 INFO 1204 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2015-07-09 14:21:53.731 INFO 1204 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1569 ms
2015-07-09 14:21:54.281 INFO 1204 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2015-07-09 14:21:54.285 INFO 1204 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2015-07-09 14:21:54.285 INFO 1204 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2015-07-09 14:21:54.508 INFO 1204 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7a3d45bd: startup date [Thu Jul 09 14:21:52 CEST 2015]; root of context hierarchy
2015-07-09 14:21:54.573 INFO 1204 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2015-07-09 14:21:54.573 INFO 1204 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest)
2015-07-09 14:21:54.594 INFO 1204 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2015-07-09 14:21:54.594 INFO 1204 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2015-07-09 14:21:54.633 INFO 1204 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2015-07-09 14:21:54.710 INFO 1204 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2015-07-09 14:21:54.793 INFO 1204 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2015-07-09 14:21:54.795 INFO 1204 --- [ main] c.b.i.p.s.e.i.a.InventoryApp : Started InventoryApp in 2.885 seconds (JVM running for 3.227)
2015-07-09 14:22:10.911 INFO 1204 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2015-07-09 14:22:10.911 INFO 1204 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2015-07-09 14:22:10.926 INFO 1204 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 15 ms
What I've tried so far:
@RequestMapping("/") at class level of the ItemInventoryControllerAs far as I understood, I won't need an application-context when using Spring Boot. Am I right?
What else can I do to access the method via URL?
This question is related to
java
rest
spring-boot
Another solution in case it helps: in my case, the problem was that I had a @RequestMapping("/xxx") at class level (in my controller), and in the exposed services I had @PostMapping (value = "/yyyy") and @GetMapping (value = "/zzz"); once I commented the @RequestMapping("/xxx") and managed all at method level, worked like a charm.
It could be that something else is running on port 8080, and you're actually connecting to it by mistake.
Definitely check that out, especially if you have dockers that are bringing up other services you don't control, and are port forwarding those services.
It also works if we use as follows:
@SpringBootApplication(scanBasePackages = { "<class ItemInventoryController package >.*" })
You need to modify the Starter-Application class as shown below.
@SpringBootApplication
@EnableAutoConfiguration
@ComponentScan(basePackages="com.nice.application")
@EnableJpaRepositories("com.spring.app.repository")
public class InventoryApp extends SpringBootServletInitializer {..........
And update the Controller, Service and Repository packages structure as I mentioned below.
Example: REST-Controller
package com.nice.controller; --> It has to be modified as
package com.nice.application.controller;
You need to follow proper package structure for all packages which are in Spring Boot MVC flow.
So, If you modify your project bundle package structures correctly then your spring boot app will work correctly.
I had this issue and what you need to do is fix your packages. If you downloaded this project from http://start.spring.io/ then you have your main class in some package. For example if the package for the main class is: "com.example" then and your controller must be in package: "com.example.controller". Hope this helps.
You can add inside the POM.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<version>XXXXXXXXX</version>
</dependency>
For me, the problem was that I had set up the Application in a way that it always immediately shut down after starting. So by the time I tried out if I could access the controller, the Application wasn't running anymore. The problem with immediately shutting down is adressed in this thread.
for me, I was adding spring-web instead of the spring-boot-starter-web into my pom.xml
when i replace it from spring-web to spring-boot-starter-web, all maping is shown in the console log.
SpringBoot developers recommend to locate your main application class in a root package above other classes. Using a root package also allows the @ComponentScan annotation to be used without needing to specify a basePackage attribute. Detailed info But be sure that the custom root package exists.
Sometimes spring boot behaves weird. I specified below in application class and it works:
@ComponentScan("com.seic.deliveryautomation.controller")
Adding to MattR's answer:
As stated in here, @SpringBootApplication automatically inserts the needed annotations: @Configuration, @EnableAutoConfiguration, and also @ComponentScan; however, the @ComponentScan will only look for the components in the same package as the App, in this case your com.nice.application, whereas your controller resides in com.nice.controller. That's why you get 404 because the App didn't find the controller in the application package.
The problem is with your package structure. Spring Boot Application has a specific package structure to allow spring context to scan and load various beans in its context.
In com.nice.application is where your Main Class is and in com.nice.controller, you have your controller classes.
Move your com.nice.controller package into com.nice.application so that Spring can access your beans.
Same 404 response I got after service executed with the below code
@Controller
@RequestMapping("/duecreate/v1.0")
public class DueCreateController {
}
Response:
{
"timestamp": 1529692263422,
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/duecreate/v1.0/status"
}
after changing it to below code I received proper response
@RestController
@RequestMapping("/duecreate/v1.0")
public class DueCreateController {
}
Response:
{
"batchId": "DUE1529673844630",
"batchType": null,
"executionDate": null,
"status": "OPEN"
}
Place your springbootapplication class in root package for example if your service,controller is in springBoot.xyz package then your main class should be in springBoot package otherwise it will not scan below packages
I had exact same error, I was not giving base package. Giving correct base package,ressolved it.
package com.ymc.backend.ymcbe;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication
@ComponentScan(basePackages="com.ymc.backend")
public class YmcbeApplication {
public static void main(String[] args) {
SpringApplication.run(YmcbeApplication.class, args);
}
}
Note: not including .controller @ComponentScan(basePackages="com.ymc.backend.controller") because i have many other component classes which my project does not scan if i just give .controller
Here is my controller sample:
package com.ymc.backend.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@CrossOrigin
@RequestMapping(value = "/user")
public class UserController {
@PostMapping("/sendOTP")
public String sendOTP() {
return "OTP sent";
};
}
There are 2 method to overcome this
Place the bootup application at start of the package structure and rest all controller inside it.
Example :
package com.spring.boot.app; - You bootup application(i.e. Main Method -SpringApplication.run(App.class, args);)
You Rest Controller in with the same package structure Example : package com.spring.boot.app.rest;
Explicitly define the Controller in the Bootup package.
Method 1 is more cleaner.
I got the 404 problem, because of Url Case Sensitivity.
For example
@RequestMapping(value = "/api/getEmployeeData",method = RequestMethod.GET) should be accessed using http://www.example.com/api/getEmployeeData. If we are using http://www.example.com/api/getemployeedata, we'll get the 404 error.
Note:
http://www.example.com is just for reference which i mentioned above. It should be your domain name where you hosted your application.
After a lot of struggle and apply all the other answers in this post, I got that the problem is with that url only. It might be silly problem. But it cost my 2 hours. So I hope it will help someone.
Replace @RequestMapping( "/item" ) with @GetMapping(value="/item", produces=MediaType.APPLICATION_JSON_VALUE).
Maybe it will help somebody.
Source: Stackoverflow.com