Wsrtjtyk

I am trying to set up a Spring-Boot application that can be accessed via REST. For starting purposes, I wanted it to simply take a number and add the number 2 to it and return the result.

Now I built a WAR-File and deployed it on my tomcat, so that I can try to access it from an Angular project. First off, I'd like to test it with cURL to ensure that it's working.

What did I do?

1. Build WAR-file


2. Move WAR-file into my xampp/tomcat/webapps/
   


3. Start my tomcat from xampp (running on ports 8080, 8005, 8009)


4. Open cmd and move into my cURL-directory


5. Execute the following command: curl.exe -H "number: 5" http://localhost:8009/number/
   

Error:

Throwing unexpected: Error: Malformed heap size 'number: 5'.

I got the following setup:

src/com/example/demo

|

---DemoApplication.java

|

---/controller

|  |---NumberController.java

---/dto

|  |---EntryDto.java

---/service

   |---EntryService.java

NumberController.java

@RequestMapping("/number")

@RestController

public class NumberController {

    @Autowired

    EntryService entryService;



    @RequestMapping(value="/number/{number}")

    public EntryDto receiveNumber(int number) {

        return entryService.createEntryDtoFromNumber(number);

    }

}

EntryDto.java

public class EntryDto {



    private int value;



    public EntryDto(int value) {

        this.value = value;

    }



    public void increaseValue(int increaseValue) {

        this.value = this.value + increaseValue;

    }



    public int getValue() {

        return this.value;

    }



    public void setValue(int value) {

        this.value = value;

    }

}

EntryService.java

@Service

public class EntryService {



    public EntryDto createEntryDtoFromNumber(int number) {

        entryDto = new EntryDto(number);

        entryDto.increaseValue(2);

        return this.entryDto;

    }



}

pom.xml

<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>war</packaging>



    <name>demo</name>

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



    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>2.1.0.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-data-jpa</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-data-rest</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-security</artifactId>

        </dependency>

        <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>

        </dependency>

        <dependency>

            <groupId>com.h2database</groupId>

            <artifactId>h2</artifactId>

            <scope>runtime</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.restdocs</groupId>

            <artifactId>spring-restdocs-mockmvc</artifactId>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.security</groupId>

            <artifactId>spring-security-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>