Spring tool suite - console error - whitelabel Error page - access denied - spring

Spring boot sample program with Mysql backend. very simple code. I checked application. properties, access to the DB etc. No clue why I am getting this error.
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>2.2.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.skb.course.apis</groupId>
<artifactId>library-apis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>library-apis</name>
<description>Project for developing Library APIs</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- JPA Data (We are going to use Repositories, Entiries, Hibernate, etc...) -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- For MySQL Connector-J -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- For implementing API Security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<!-- For handling JWT related functionality-->
<dependency>
<groupId>com.auth0</groupId>
<artifactId>java-jwt</artifactId>
<version>3.8.0</version>
</dependency>
<!-- Test related dependencies -->
<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>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>test</scope>
</dependency>
<!-- Used for Integration Tests. Spring's TestRestTemplate throws an error while sending PUT requests with
authorization error: java.net.HttpRetryException: cannot retry due to server authentication, in streaming mode
Therefore we need to use Apaches's HTTP client. Please refer:
https://stackoverflow.com/questions/16748969/java-net-httpretryexception-cannot-retry-due-to-server-authentication-in-stream
-->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
Console has no errors and tomcat is configured to run on 3000 port
application.properties file
Mysql db showing list of databaseds
Theere is data available in the PUBLISHER TABLE. but access denied error is thrown
Rest controller code
package com.skb.course.apis.libraryapis.publisher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import javax.validation.Valid;
import java.util.UUID;
#RestController
#RequestMapping(path = "/v1/publishers")
public class PublisherController {
private static Logger logger =
LoggerFactory.getLogger(PublisherController.class);
private PublisherService publisherService;
public PublisherController(PublisherService publisherService) {
this.publisherService = publisherService;
}
#GetMapping(path = "/{publisherId}")
public ResponseEntity<?> getPublisher(#PathVariable Integer publisherId,
#RequestHeader(value = "Trace-Id", defaultValue = "") String traceId)
throws LibraryResourceNotFoundException {
if (!LibraryApiUtils.doesStringValueExist(traceId)) {
traceId = UUID.randomUUID().toString();
}
return new ResponseEntity<>(publisherService.getPublisher(publisherId, traceId), HttpStatus.OK);
}
}

Related

Springboot REST API returning 404 when deployed in Jboss EAP.7.1.0

I have created a simple Springboot REST api, which is working fine when deployed in Tomacat container but returning 404 message when deployed in Jboss EAP 7.1.0. Need help to resolve this problem.
Below are the classes i wrote along with pom.xml and application.properties
SpringRestApiApplication.java
package com.test.spring;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class SpringRestApiApplication{
public static void main(String[] args) {
SpringApplication.run(SpringRestApiApplication.class, args);
}
}
RestExample.java
package com.test.spring.web.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
#RequestMapping(value = "/test")
public class RestExample {
#GetMapping(value = "/hello")
public String HelloWorldAPI() {
return "Hello World!";
}
}
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>1.5.10.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>SpringRestAPI</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>SpringRestAPI</name>
<description>Rest API Test Example</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
<exclusion>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>rest-api</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.properties
server.servlet-path=/*
You are using 7.1.0 right. Remove this and try server.servlet-path=/*

My rest controller is not get called from URL

My Rest Controller is not getting called. Can you kindly guide me?
I have created an API for bus reservation scenario for that my controller is not getting called.
Is there any issue in configuration?
I have tried by using following URL:
http://localhost:9090/service/api/bus/enter link description here
debug breakpoint is also not coming.
import org.slf4j.Logger;
import java.sql.Date;
import java.util.List;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import io.swagger.annotations.ApiOperation;
#RestController
#RequestMapping(value = "/service")
public class ServiceController {
#Autowired
private ComponentDetailsService busService;
#ApiOperation("This is the hello world api")
#GetMapping("/api/bus/")
public String hello() {
ComponentDetailsEntity bus = new ComponentDetailsEntity();
bus.setArrivalTime("10");
bus.setBusNumber("TN11");
bus.setDepature("salem");
bus.setDestinationCity("chennai");
bus.setDuration("5");
bus.setOperatorName("bala");
bus.setPrice(350);
bus.setReturnDate(Date.valueOf("2020-5-4"));
bus.setSourceCity("Salem");
bus.setTravelDate(Date.valueOf("2020-5-3"));
busService.postBus(bus);
System.out.println("a");
return "hello";
}
#GetMapping("/api/bus/{sourceCity}/{destinationCity}/{travelDate}")
public List<ComponentDetailsEntity> findAll(#PathVariable("sourceCity") String sourceCity, #PathVariable("destinationCity") String destinationCity,
#PathVariable("travelDate") String strdate) {
Date date = Date.valueOf(strdate);
return busService.findAll(sourceCity,destinationCity,date);
}
}
server.port=9090
spring.datasource.url=jdbc:h2:mem:db
spring.datasource.username=sa
spring.datasource.password=
spring.jpa.database-platform=h2
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true
spring.h2.console.enabled=true
<?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>
<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>org.codejudge</groupId>
<artifactId>sb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>sb</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<swagger.version>2.4.0</swagger.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${swagger.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springf
ramework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.2.5.RELEASE</version>
</dependency>
</dependencies>
<build>
<finalName>spring-boot-in-docker</finalName>
<plugins>
<!-- This is needed if deploying with embedded server -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Please check your console output, e.g. if there is any exception in your service class. The code you provided does work and generates the output "hello".

spring boot #repository bean from Maven dependency not found

I'm working on multiple Spring Boot projects using spring-data-mongoDB (w/o JPA). One that contains the common (udc-common) components, repositories and services and others (eg udc-gateway) that use these components. the udc-common library is declared as a maven dependency in the other projects.
(you'll find enclosed the maven detailed configurations at the end of this post)
Environment structure
udc_common project
udc_common.models
udc_common.repositories
udc_common.services
udc_common.interfaces
udc_gateway project
udc_gateway.controllers
udc_gateway ....
gatewayApplication.java
gateway pom.xml
<dependency>
<groupId>org.open_si</groupId>
<artifactId>udc-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
in the udc-gateway project I have a rest controller thats refers to a udc-comm SampleService. When running it I face an error
Parameter 0 of constructor in org.open_si.udc_common.services.SampleService required a bean of type 'org.open_si.udc_common.repositories.SampleRepository' that could not be found.
the coding organization is :
the controller (SamplesController) belongs to the gateway project
the service (SampleService) and its repository (SampleRepository) belong to the common project being declared as maven dependency in the gateway project
Obviously the SampleService injection does work but its SampleRepository dependency doesn't. As the common package is an external one I've set the #componentscan accordingly in the gateway app main class
tryed
#ComponentScan("org.open_si.udc_common")
and
#ComponentScan({
"org.open_si.udc_common.repositories",
"org.open_si.udc_common.services"
})
the SamplesController (gateway project) code excerpt related for the SampleService is
#RestController
#RequestMapping("/samples")
public class SamplesController {
#Autowired
private SampleService service;
......
the SampleService (common project) is
#Service
#EnableMongoRepositories
public class SampleService {
#Autowired
private SampleRepository sr;
void insert(BaseSampleEntity sample) {
this.sr.insert(sample);
}
public void delete(BaseSampleEntity sample) {
this.sr.delete(sample);
}
.....
or also tryed
#Service
#EnableMongoRepositories
public class SampleService {
private final SampleRepository sr;
public SampleService(SampleRepository repository) {
sr = repository;
}
void insert(BaseSampleEntity sample) {
this.sr.insert(sample);
}
public void delete(BaseSampleEntity sample) {
this.sr.delete(sample);
}
and the SampleRepository (common project) is
// #Repository (JPA only)
public interface SampleRepository extends MongoRepository<BaseSampleEntity, String> {
List<BaseSampleEntity> findByNodeUuid(String Uuid, Sort sort, Pageable pageable);
List<BaseSampleEntity> findByFieldUuid(String Uuid, Sort sort, Pageable pageable);
so the raised exception
Parameter 0 of constructor in org.open_si.udc_common.services.SampleService required a bean of type 'org.open_si.udc_common.repositories.SampleRepository' that could not be found.
leads me thinking that something is wrong in the spring boot IOC process. Any idea ?
thanks in advance for your help.
udc-common 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>2.2.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>org.open_si</groupId>
<artifactId>udc-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>UDC common</name>
<packaging>jar</packaging>
<description>Common resources for Universal Data Collector</description>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>RELEASE</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<!-- <source>1.8</source>-->
<!-- <target>1.8</target>-->
<release>11</release>
</configuration>
</plugin>
</plugins>
</build>
</project>
udc-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>2.2.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>org.open_si</groupId>
<artifactId>gateway</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Gateway</name>
<description>Gateway for UDC project</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.open_si</groupId>
<artifactId>udc-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-starter-oauth2-client</artifactId>-->
<!-- </dependency>-->
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-starter-oauth2-resource-server</artifactId>-->
<!-- </dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit-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>
Try adding below annotation in the spring boot main application class (ie. class annotated with SpringBootApplication - GateWayApplication.java)
#EnableMongoRepositories(basePackages = "org.open_si.udc_common")
#ComponentScan("org.open_si.udc_common.services")
#EntityScan(basePackages ="org.open_si.udc_common.models")
Also, as you mentioned you don't need to annotate repository class with #Repository as this is already managed by spring data
UPDATE:
#SpringBootApplication itself has ComponentScan annoation embedded to it, so it automatically scans all the classes under all the subdirectories.
Hope you have the directory structure somewhat similar to
com.example
--controllers
-- SamplesController
--service
-- SampleService
SampleApplication (this is the class that contains #SpringBootApplication & #EnableMongoRepositories)
Mb you need to add the Spring Data dependency to Maven
As suggested by Kumar V adding
#ComponentScan("org.open_si.udc_common.services")
#EnableMongoRepositories(basePackages = {"org.open_si.udc_common.repositories"})
In the gateway.application.java did the trick.
Unfortunately due to the org.open_si.udc_common.services import, I faced a new issue :
when sending a request against the SamplesController I get an HTTP 404 error.
When removing the ComponentScan of udc-common-services (and the reference to the SampleService in the controller) everythink is ok.
Springs does make some stuff under the wood that I don't understand.

Spring Cloud Gateway not starting when deployed as WAR showing webFluxConversionService error

I'm trying to do a sample with Spring Cloud Gateway for JWT authentication and URL routing purpose.
All is running well when i run as a JAVA application or using Embedded Tomcat Container but when the same is deployed to a Tomcat server as a War, then i ge the below dependency injection error.
APPLICATION FAILED TO START
Description:
Parameter 4 of method routeDefinitionRouteLocator in org.springframework.cloud.gateway.config.GatewayAutoConfiguration required a bean of type 'org.springframework.core.convert.ConversionService' that could not be found.
The injection point has the following annotations:
- #org.springframework.beans.factory.annotation.Qualifier(value=webFluxConversionService)
Action:
Consider defining a bean of type 'org.springframework.core.convert.ConversionService' in your configuration.
I have tried adding jars related to spring web flux but the error did not go
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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.gateway</groupId>
<artifactId>gateway</artifactId>
<version>1.0</version>
<packaging>war</packaging>
<name>gateway</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-tomcat -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-webflux -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web-reactive -->
</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>
<finalName>mxgateway</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin> <artifactId>maven-war-plugin</artifactId>
<configuration> <outputDirectory>E:/apache-tomcat-9.0.22/webapps</outputDirectory>
</configuration> </plugin>
</plugins>
</build>
</project>
The gateway configuration is
package com.gateway.gateway;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder.Builder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.gateway.gateway.bean.ProgramRouteDetail;
import com.gateway.gateway.security.CustomGatewayFilter;
#SpringBootApplication
#Configuration
public class GatewayApplication extends SpringBootServletInitializer{
#Autowired
CustomGatewayFilter customGatewayFilter;
public static void main(String[] args) {
SpringApplication.run(GatewayApplication.class, args);
}
public List<ProgramRouteDetail> filterRequest(){
List<ProgramRouteDetail> programRouteDetails = new ArrayList<ProgramRouteDetail>();
for(int i =0;i<=2;i++){
ProgramRouteDetail detail = new ProgramRouteDetail();
detail.setDestUri("http://localhost:9090");
detail.setProgramId("users");
detail.setPath("/user/**");
programRouteDetails.add(detail);
}
return programRouteDetails;
}
#Override
protected SpringApplicationBuilder configure(
SpringApplicationBuilder builder) {
return builder.sources(GatewayApplication.class);
}
public RouteLocator constructRouteAndFilters(RouteLocatorBuilder builder ){
Builder routes = builder.routes();
List<ProgramRouteDetail> programRouteDetails = filterRequest();
for(ProgramRouteDetail programDetail : programRouteDetails){
routes.route(p -> p.path(programDetail.getPath()).filters(f->f.filter(customGatewayFilter)).uri(programDetail.getDestUri()));
}
return routes.build();
}
#Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return constructRouteAndFilters(builder);
}
}
Spring Cloud Gateway does not support WAR deployments. It is based on Spring Webflux and Spring Boot does not support war deployments of webflux.
From the documentation:
Because Spring WebFlux does not strictly depend on the Servlet API and
applications are deployed by default on an embedded Reactor Netty
server, War deployment is not supported for WebFlux applications.

"resources" folder not being created in WEB-INF directory in Spring Boot app

I have a Spring Boot application in development that I recently upgraded from Spring 3 to Spring 4 (spring-boot-starter-parent 1.3.5.RELEASE to 1.4.6.RELEASE).
I have, within my src/main/resources/templates directory, an html template (called 'test-template.html') which I have been using to create HTML email content, using Thymeleaf's TemplateEngine. (This was working fine prior to upgrading to version 4.)
The problem I have at present is that no "templates" directory is being created within WEB-INF on the server (or within the relevant directory within "target", upon building with Maven). As a result, I'm getting the following:
java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/templates/test-template.html]
The following is my configuration class for Thymeleaf. (I am using manual configuration since I'm using Thymeleaf only for email template processing, and thus don't want Spring Boot to configure a Thymeleaf view resolver. I get the same error with auto-configuration, however.)
#Configuration
public class ThymeleafConfig implements ApplicationContextAware {
private static final Logger logger = LoggerFactory.getLogger(ThymeleafConfig.class);
private ApplicationContext applicationContext;
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
#Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine engine = new SpringTemplateEngine();
engine.setEnableSpringELCompiler(true);
engine.setTemplateResolver(templateResolver());
return engine;
}
private ITemplateResolver templateResolver() {
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setApplicationContext(applicationContext);
resolver.setPrefix("/WEB-INF/templates/");
resolver.setSuffix(".html");
resolver.setTemplateMode(TemplateMode.HTML);
return resolver;
}
}
Here's the 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>myapp</artifactId>
<version>1.0.10-SNAPSHOT</version>
<packaging>war</packaging>
<name>myapp</name>
<description>blah blah</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<start-class>com.matchingchina.AcumenApplication</start-class>
<thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>
<thymeleaf-layout-dialect.version>2.1.1</thymeleaf-layout-dialect.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</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-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-jsp</artifactId>
<version>3.0.5</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.imgscalr</groupId>
<artifactId>imgscalr-lib</artifactId>
<version>4.2</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>com.sendgrid</groupId>
<artifactId>sendgrid-java</artifactId>
<version>3.2.1</version>
</dependency>
<!-- WEBJARS -->
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>3.3.6</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>font-awesome</artifactId>
<version>4.6.1</version>
</dependency>
</dependencies>
</project>
Change /WEB-INF/templates/ to classpath:/template/. On the classpath doesn't necessary mean on the web context path.

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