How to use spring cloud in development environment to create microservices I made a structure that appears the service in the Eureka dashboard but when I run my service in the browser it gives a Not Found error. I'll post my code here to see if anyone can help me.
ApiGatewayApplication.java:
package com.example.apigateway;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
#SpringBootApplication
#EnableEurekaServer
public class ApiGatewayApplication {
public static void main(String[] args) {
SpringApplication.run(ApiGatewayApplication.class, args);
}
}
application.properties:
spring.application.name = eureka-server
server.port = 8761
eureka.client.register-with-eureka = false
eureka.client.fetch-registry = false
eureka.instance.hostname=localhost
#spring.cloud.gateway.discovery.locator.enabled=true
spring.cloud.gateway.enabled=false
spring.cloud.gateway.routes[0].id = user
spring.cloud.gateway.routes[0].uri = lb://USER-SERVICE
spring.cloud.gateway.routes[0].predicates = Path=/user/**
#spring.cloud.gateway.routes[0].filters = RewritePath=/user/(?.*), /$\{path}
UserApplication.java:
package com.example.user;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
#SpringBootApplication
#EnableDiscoveryClient
public class UserApplication {
public static void main(String[] args) {
SpringApplication.run(UserApplication.class, args);
}
}
UserController.java:
package com.example.user;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
//#Controller// This means that this class is a Controller
#RequestMapping(path="/user") // This means URL's start with /demo (after Application path)
#RestController
public class UserController {
#Autowired // This means to get the bean called userRepository
// Which is auto-generated by Spring, we will use it to handle the data
private UserRepository userRepository;
#GetMapping("/")
public String getHelloWorld()
{
return "Hello World";
}
#PostMapping(path="/add") // Map ONLY POST Requests
public #ResponseBody String addNewUser (#RequestParam String name
, #RequestParam String email) {
// #ResponseBody means the returned String is the response, not a view name
// #RequestParam means it is a parameter from the GET or POST request
User n = new User();
n.setNome(name);
n.setEmail(email);
userRepository.save(n);
return "Saved";
}
#GetMapping(path="/all")
public #ResponseBody Iterable<User> getAllUsers() {
// This returns a JSON or XML with the users
return userRepository.findAll();
}
}
application.properties:
spring.jpa.hibernate.ddl-auto=none
spring.datasource.url=jdbc:mysql://${MYSQL_HOST:Mysql}:3306/quitanda_app
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLDialect
#spring.jpa.show-sql: true
server.port = 8000
spring.application.name = user-service
eureka.client.serviceUrl.defaultZone = http://localhost:8761/eureka
eureka.instance.hostname=localhost
When I run http://localhost:8761/ it returns me:
When I call my controller http://localhost:8761/user/all
it return to me:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Mon Sep 26 20:16:15 BRT 2022
There was an unexpected error (type=Not Found, status=404).
Does anyone know how to help me?
Resolved:
folder api-gateway : EurekaServer:
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
#SpringBootApplication
#EnableEurekaServer
public class ApiGatewayApplication {
public static void main(String[] args) {
SpringApplication.run(ApiGatewayApplication.class, args);
}
}
api-gateway: application.properties
spring.application.name = api-gateway
server.port = 8761
eureka.client.register-with-eureka = false
eureka.client.fetch-registry = false
eureka.instance.hostname=localhost
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
api-gateway: 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>api-gateway</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>api-gateway</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>3.1.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
folder routing: routing our services:
package com.example.routing;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
#SpringBootApplication
#EnableDiscoveryClient
public class RoutingApplication {
public static void main(String[] args) {
SpringApplication.run(RoutingApplication.class, args);
}
}
routing: application.properties:
server.port=8080
spring.application.name=routing
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
eureka.instance.hostname=localhost
spring.cloud.gateway.discovery.locator.enabled=true
#spring.main.web-application-type=reactive
spring.cloud.gateway.enabled=true
spring.cloud.gateway.routes[0].id=user
spring.cloud.gateway.routes[0].uri=lb://USER
spring.cloud.gateway.routes[0].predicates=Path=/user/**
spring.cloud.gateway.routes[1].id=testes
spring.cloud.gateway.routes[1].uri=lb://TESTES
spring.cloud.gateway.routes[1].predicates=Path=/testes/**
routing: 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>routing</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>routing</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<spring-cloud.version>2021.0.4</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
<version>3.1.4</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<version>3.1.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
folder testes: Class Application:
package com.example.testes;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
#SpringBootApplication
#EnableDiscoveryClient
public class TestesApplication {
public static void main(String[] args) {
SpringApplication.run(TestesApplication.class, args);
}
}
testes: Controller:
package com.example.testes.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
//import com.example.user.communication.PaymentCartCommunication;
//#Controller// This means that this class is a Controller
#RequestMapping("/testes")// This means URL's start with /demo (after Application path)
#RestController
public class TestesController {
#GetMapping("/message")
public String getHelloWorld()
{
return "Hello World testes";
}
}
testes: application.properties:
server.port = 8762
spring.application.name = testes
eureka.client.serviceUrl.defaultZone = http://localhost:8761/eureka
eureka.instance.hostname=localhost
testes: 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>testes</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>testes</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
<version>3.1.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
folder user: Class application:
package com.example.user;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
#SpringBootApplication
#EnableDiscoveryClient
public class UserApplication {
public static void main(String[] args) {
SpringApplication.run(UserApplication.class, args);
}
}
user: Controller:
package com.example.user.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
//#Controller// This means that this class is a Controller
#RequestMapping("/user")// This means URL's start with /demo (after Application path)
#RestController
public class UserController {
#GetMapping("/message")
public String getHelloWorld()
{
return "Hello World";
}
}
user: application.properties:
server.port = 8000
spring.application.name = user
eureka.client.serviceUrl.defaultZone = http://localhost:8761/eureka
eureka.instance.hostname=localhost
user: 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>user</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>user</name>
<description>User microservice</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
<version>3.1.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Run each project in a terminal and access the services : http://localhost:8080/testes/message http://localhost:8080/user/message
Repository
Related
I have made projects before on spring and never got any issue like this before ,i just can't seem to figure out what is wrong here, all dependencies are correctly imported .
Here is how my vaultengine.java looks like :
VaultEngine.java :
package com.example.VaultEngine;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#SpringBootApplication
#Controller
public class VaultEngineApplication {
public static void main(String[] args) {
SpringApplication.run(VaultEngineApplication.class, args);
}
#GetMapping("/h")
public String greetingForm() {
return "index.html";
}
}
I am using a custom port cause i have 8080 in use somewhere already.
application.properties:
server.port=8989
All dependencies are properly loaded.
pom.xml file :
<?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 https://maven.apache.org/xsd/maven-
4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</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-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<version>2.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.19</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<version>1</version>
</configuration>
</plugin>
</plugins>
</build>
</project>
You are using spring-boot-starter-thymeleaf, so
#GetMapping("/h")
public String greetingForm() {
return "index";
}
and put index.html to src/main/resources/templates/.
refs:
https://spring.io/guides/gs/serving-web-content/
https://docs.spring.io/spring-boot/docs/2.2.6.RELEASE/reference/htmlsingle/#boot-features-spring-mvc-template-engines
https://docs.spring.io/spring/docs/5.2.7.RELEASE/spring-framework-reference/web.html#mvc-controller
Use #RestController instead of #Controller
#SpringBootApplication
#RestController
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
#GetMapping("/h")
public String greetingForm() {
return "index.html";
}
}
I am developing a simple spring boot application. I am creating a LoginController class and trying to access the API which is present in the LoginController class. I am able to execute the program, but not getting the expected output while I am trying to access the API.
Login Controller
package com.in28minutes.springboot.web.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class LoginController {
#GetMapping("/login")
public String loginMessage() {
return "Welcome to Springboot Application";
}
}
Bootstraping Application
package com.in28minutes.springboot.web.springbootwebexample;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class SpringBootWebExampleApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootWebExampleApplication.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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.in28minutes.springboot.web</groupId>
<artifactId>spring-boot-web-example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-web-example</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
I run the project several times but don't get the output as expected. Can anyone help me out?
#SpringBootApplication annotation scans the current package and the sub-packages to look for #Component. In your case, LoginController is not in the package, not a sub-package of SpringBootWebExampleApplication.
Either move com.in28minutes.springboot.web.controller in com.in28minutes.springboot.web.springbootwebexample.controller
Or, use #SpringBootApplication(scanBasePackages = "your.package") on your SpringBootWebExampleApplication
package com.in28minutes.springboot.web.springbootwebexample;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication(scanBasePackages = "com.in28minutes.springboot")
public class SpringBootWebExampleApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootWebExampleApplication.class, args);
}
}
package com.in28minutes.springboot.web.springbootwebexample;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
#ComponentScan("com.in28minutes.springboot")
public class SpringBootWebExampleApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootWebExampleApplication.class, args);
}
}
I tried to setup Spring boot basic example in my machine. BUt after setup, i am getting 404 status code returned.
I tried so many solutions provided on stack overflow. But none of them resolved my problem. Please help me, TIA.
I tried sub package structure to main mathod present package.
I tried adding scanBasePackages to #SpringBootApplication. Still no luck.
my code: Main Class . I tried by using without and with scanBasePackages.
package com.online.sbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication(scanBasePackages = {"com.online.sbo"})
public class OnlineSboApplication {
public static void main(String[] args) {
SpringApplication.run(OnlineSboApplication.class, args);
}
}
My controller: In server logs its not showing that this controller is registerd.
package com.online.sbo;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
#RestController("/home")
public class HomeController {
#GetMapping(value="/render", produces =
MediaType.APPLICATION_JSON_VALUE)
#ResponseBody
public String renderHomre() {
return "gfvbytfgh";
}
}
My Pom.xml: I have not added any security in my project. I have created this project from start.spring.iosite.
<?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
https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.8.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.online.sbo</groupId>
<artifactId>OnlineSbo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>OnlineSbo</name>
<description>Odisha Bank</description>
<properties>
<java.version>1.8</java.version>
</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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Application.properties:- There is No entry in this file.
You use #RestController attribute wrong.
This should work:
#RestController
#RequestMapping("/home")
public class HomeController {
#GetMapping(value="/render", produces =
MediaType.APPLICATION_JSON_VALUE)
#ResponseBody
public String renderHomre() {
return "gfvbytfgh";
}
}
ps: In your example localhost:8080/render should work, too.
Hello i've tried to create a simple controller and put it in the same package with the main class but it looks like it's not finding it.Basically, when i run the app it's not mapping the endpoint.
I just can't figure out what is wrong with it.
Here is the code:
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class TestProject1Application {
public static void main(String[] args) {
SpringApplication.run(TestProject1Application.class, args);
}
}
package com.example.demo.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class HomeController {
#RequestMapping(value="/hello", method = RequestMethod.GET)
public String sayHello() {
return "HELLO";
}
}
Project Structure and Console:
This is my 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.tsv</groupId>
<artifactId>TestProject-1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>TestProject-1</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.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>
<java.version>1.8</java.version>
</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-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Although in your log, I do not see 'ServletRegistrationBean' getting initialized, I find no issue with your configuration. Try execute the Spring boot app again & you should be able to invoke the HomeController via 'localhost:8080/hello'.
I am trying to deploy simple springboot app on weblogic. but see some error.
my java classes are
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.javainuse</groupId>
<artifactId>SpringBootHelloWorld</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>SpringBootHelloWorld</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2.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>
<java.version>1.8</java.version>
</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-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
This is my SpringBootHelloWorldApplication.java class
package com.javainuse;
import javafx.application.Application;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.web.WebApplicationInitializer;
#SpringBootApplication
public class SpringBootHelloWorldApplication extends SpringBootServletInitializer implements WebApplicationInitializer{
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) {
SpringApplication.run(SpringBootHelloWorldApplication.class, args);
}
}
and this is my TestController class.
package com.javainuse.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class TestController {
#RequestMapping("/welcome.html")
public ModelAndView firstPage() {
return new ModelAndView("welcome");
}
}
I get below error
Caused By: com.bea.xml.XmlException: failed to load java type corresponding to e=web-fragment#http://xmlns.jcp.org/xml/ns/javaee
at com.bea.staxb.runtime.internal.UnmarshalResult.getPojoBindingType(UnmarshalResult.java:371)
at com.bea.staxb.runtime.internal.UnmarshalResult.determineTypeForGlobalElement(UnmarshalResult.java:326)
at com.bea.staxb.runtime.internal.UnmarshalResult.determineTypeForGlobalElement(UnmarshalResult.java:336)
at com.bea.staxb.runtime.internal.UnmarshalResult.determineRootType(UnmarshalResult.java:317)
at com.bea.staxb.runtime.internal.UnmarshalResult.unmarshalDocument(UnmarshalResult.java:168)
Truncated. see log file for complete stacktrace
I am using weblogic 12 with java8.
Please assist with this issue since I tried all the options already provided and it is not working. I get this error when server tries to deploy this application.