Error 404 Spring boot ubuntu

Question

Error 404 Spring boot ubuntu

Navigation

#1 by (0 votes)
#2 by (0 votes)
#3 by (0 votes)
#4 by (0 votes)

1

I'm trying to create a RESTful application with spring boot here in Ubuntu, but when I run the application "Run as java application", the server goes up but it seems to me that it does not deploy the application, because when I try to access the url gives 404 error.

Detail: No windows works.

Single class:

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@EnableAutoConfiguration
public class DemoApplication {

  @RequestMapping("/")
  String home() {
    return "Hello World!";
  } 

  public static void main(String[] args) {
    SpringApplication.run(DemoApplication.class, args);
  } 
}

POM.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <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>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>   
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

HERE'S THE LOG

  .   ____          _            __ _ _
 /\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _' | \ \ \ \
 \/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.4.3.RELEASE)

2017-02-07 21:13:27.814  INFO 3975 --- [           main] com.example.DemoApplication              : Starting DemoApplication on meu pc
2017-02-07 21:13:27.817  INFO 3975 --- [           main] com.example.DemoApplication              : No active profile set, falling back to default profiles: default
2017-02-07 21:13:27.858  INFO 3975 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@64cd705f: startup date [Tue Feb 07 21:13:27 BRST 2017]; root of context hierarchy
2017-02-07 21:13:28.894  INFO 3975 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-02-07 21:13:28.904  INFO 3975 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2017-02-07 21:13:28.905  INFO 3975 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.6
2017-02-07 21:13:28.974  INFO 3975 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-02-07 21:13:28.975  INFO 3975 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1119 ms
2017-02-07 21:13:29.011  INFO 3975 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-02-07 21:13:29.226  INFO 3975 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2017-02-07 21:13:29.256  INFO 3975 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-02-07 21:13:29.262  INFO 3975 --- [           main] com.example.DemoApplication              : Started DemoApplication in 1.881 seconds (JVM running for 2.131)

Url's that I tried to access:
localhost: 8080
localhost: 8080 / demo
localhost: 8080 / demo / DemoApplication

Thank you in advance.

tomcat spring-boot

asked by anonymous 08.02.2017 / 00:42

4 answers

Warning when trying session_start (); PHP [duplicate] Prevent calculation from being negative

score 0 · Answer 1

You may not have permission in your directory. If you do not, try the following command:

sudo chmod +x "seu diretorio"

Updated Also try to access as follows in Firefox:

0.0.0.0:80

score 0 · Answer 2

I could try to force Spring to scan the class:

@ComponentScan(basePackageClasses = DemoApplication.class)

Another thing, the @SpringBootApplication annotation is in some other class of the application? I think she should be in DemoApplication.

score 0 · Answer 3

I created a project using this pom and it worked:


<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>teste</groupId>
  <artifactId>teste</artifactId>
  <version>0.0.1-SNAPSHOT</version>

<name>demo</name>
    <description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.0.BUILD-SNAPSHOT</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>   
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

The only difference is that I used version 1.4.0 of spring-boot-starter-parent.

Another detail in the pom that you put I did not see the opening of the "dependencies" tag.

score 0 · Answer 4

0

Solved!

I went to spring.io and created a project with the following settings: -Web -Web Services -JPA -Spring data.

It worked without problems. Thanks guys.

09.02.2017 / 22:50