Spring Boot not recognizing application.properties file

java, spring, spring-boot

Solution

You can make a try to define resources tag in the build section in your pom.xml file. Set path for resource directory where is `application.properties`

<build>
  <resources>
    <resource>
      <directory>resources</directory>
      <targetPath>${project.build.outputDirectory}</targetPath>
      <includes>
        <include>application.properties</include>
      </includes>
    </resource>
  </resources>
</build>

Resource Link: https://stackoverflow.com/a/30595114/2293534

Another approach:

If you use spring 3.X version, You can add `@PropertySource("application.properties")`

@Configuration
@PropertySource(value = "classpath:application.properties")
public class ApplicationConfig {

    // more configuration ...
}

If you use spring 4 version, you add 2 properties file using new annotation called `@PropertySources` that allows you to declare repeated `@PropertySource` annotations:

@PropertySources({
    @PropertySource("default.properties"),
    @PropertySource("overriding.properties")
})

Details is given here in my another answer: https://stackoverflow.com/a/43659158/2293534

UPDATE #1:

Replace your `App.java` class with following class

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

//@SpringBootApplication
@Configuration
@ComponentScan
@EnableAutoConfiguration
public class Application extends SpringBootServletInitializer {

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


    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(applicationClass);
    }

    private static Class<Application> applicationClass = Application.class;
}

For `java.io.FileNotFoundException`:

Use the following

@PropertySource(value = "database.properties", ignoreResourceNotFound = true)

UPDATE #2:

I have followed the following steps to run your application. It runs successfully.

Go to your project folder where `pom.xml` is exists.

You have some errors and warning on `pom.xml`. I have clarified all.

Open command prompt and Run `mvn clean`

Run `mvn clean install`

At last `mvn spring-boot:run`

Then in browser, I run `http://localhost:8080/`

It opens the project successfully. I have also searched other pages also opened successfully.

First page looks like below `http://localhost:8080/`

All Review pages look like below: `http://localhost:8080/api/reviews`

[
  {"id":1,"userName":"ychennay","reviewText":"This restaurant was terrific!"},{"id":2,"userName":"david","reviewText":"This restaurant
 was okay!"},
  {"id":3,"userName":"ben","reviewText":"This restaurant was
 mediocre!"},
  {"id":4,"userName":"leon","reviewText":"This restaurant
 was awful!"},
  {"id":5,"userName":"lawrence","reviewText":"This
 restaurant was confusing!"}
]

So Replace your `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.diningapp</groupId>
  <artifactId>Dining</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <properties>
    <jackson.version>2.7.5</jackson.version>
    <spring-version>4.3.7.RELEASE</spring-version>
    <dynamodb-local.port>8000</dynamodb-local.port>
    <dynamodb-local.endpoint>http://localhost:${dynamodb-local.port}</dynamodb-local.endpoint>
    <spring-boot-version>1.5.2.RELEASE</spring-boot-version>
    <aws-sdk-java-version>1.11.124</aws-sdk-java-version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    <!-- For UTF-8 support -->
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>    <!-- For UTF-8 support -->
  </properties>

  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.5.1</version>
        <configuration>
          <source>1.7</source>          <!-- Used java7 -->
          <target>1.7</target>          <!-- Used java7 -->
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>${spring-boot-version}</version>
        <executions>
          <execution>
            <goals>
              <goal>repackage</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.0.0</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>
    </plugins>
  </build>

  <repositories>
    <repository>
      <id>dynamodb-local-oregon</id>
      <name>DynamoDB Local Release Repository</name>
      <url>https://s3-us-west-2.amazonaws.com/dynamodb-local/release</url>
    </repository>
  </repositories>

  <dependencies>
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-releasetrain</artifactId>
      <version>Hopper-SR10</version>
      <type>pom</type>
      <!-- <scope>import</scope> -->
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <version>${spring-boot-version}</version>      <!-- You have missed to add this version -->
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-configuration-processor</artifactId>
      <version>${spring-boot-version}</version>      <!-- You have missed to add this version -->
      <optional>true</optional>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <version>${spring-boot-version}</version>
    </dependency>
    <dependency>
      <groupId>com.amazonaws</groupId>
      <artifactId>aws-java-sdk-dynamodb</artifactId>
      <version>${aws-sdk-java-version}</version>
    </dependency>
    <dependency>
      <groupId>com.github.derjust</groupId>
      <artifactId>spring-data-dynamodb</artifactId>
      <version>4.3.1</version>
    </dependency>

    <dependency>
      <groupId>com.amazonaws</groupId>
      <artifactId>aws-java-sdk-bom</artifactId>
      <version>${aws-sdk-java-version}</version>
      <type>pom</type>
      <!-- <scope>import</scope> -->
      <scope>provided</scope>      <!-- changed import to provided -->
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
      <version>${spring-boot-version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>${jackson.version}</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.38</version>      <!-- You have missed to add this version -->
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-security -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-security</artifactId>
      <version>${spring-boot-version}</version>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.16.10</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>
</project>

Errors and solutions:

Issue #1:

[WARNING] 'dependencies.dependency.scope' for org.springframework.data:spring-data-releasetrain:pom must be one of [provided, compile, runtime, test, system] but is 'import'. @ line 70, column 18

Solution #1:

<dependency>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-releasetrain</artifactId>
  <version>Hopper-SR10</version>
  <type>pom</type>
  <!-- <scope>import</scope> -->
  <scope>provided</scope>  <!-- changed import to provided -->
</dependency>

Issue #2:

[ERROR] 'dependencies.dependency.version' for org.springframework.boot:spring-boot-devtools:jar is missing. @ line 73, column 19

Solution #2:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-devtools</artifactId>
  <version>${spring-boot-version}</version> <!-- You have missed to add this version -->
  <optional>true</optional>
</dependency>

Issue #3:

[ERROR] 'dependencies.dependency.version' for org.springframework.boot:spring-boot-configuration-processor:jar is missing. @ line 78, column 19

Solution #3:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-configuration-processor</artifactId>
  <version>${spring-boot-version}</version> <!-- You have missed to add this version -->
  <optional>true</optional>
</dependency>

Issue #4:

[WARNING] 'dependencies.dependency.scope' for com.amazonaws:aws-java-sdk-bom:pom must be one of [provided, compile, runtime, test, system] but is 'import'. @ line 105, column 18

Solution #4:

<dependency>
  <groupId>com.amazonaws</groupId>
  <artifactId>aws-java-sdk-bom</artifactId>
  <version>${aws-sdk-java-version}</version>
  <type>pom</type>
  <!-- <scope>import</scope> -->
  <scope>provided</scope> <!-- changed import to provided -->
</dependency>

Issue #5:

[ERROR] 'dependencies.dependency.version' for mysql:mysql-connector-java:jar is missing. @ line 148, column 19

Solution #5:

<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
  <groupId>mysql</groupId>
  <artifactId>mysql-connector-java</artifactId>
  <version>5.1.38</version> <!-- You have missed to add this version -->
</dependency>

Problem

Original source

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