How do I create a Spring Boot Starter Project in Eclipse that is properly configured with a Run Configuration?

问题

I followed the instructions in Spring Boot Support in Spring Tool Suite 3.6.4 and ended up with an Eclipse project which has several issues. The number one issue is that when I right-click on the class containing the "main" entry method and select the "Run As" option, the only entry I get is the fallback "Run Configurations..." method. I neither get the option to run it as a "Spring Boot App" or as a "Java Application".

My question is how do I create the project or what do I do after it's created following the instructions in that site to get that Run As option?

In addition to the above information, I should add the following:

I'm using Eclipse 4.4.2 (Luna SR2) and STS 3.7.1
I've tried it on both Windows and Linux (Fedora with OpenJDK)
Used Java 8 (Sun Hotspot 64-bit 1.8.0_65)

When the pom.xml initially gets created, it has an error apparently due to a missing config the m2e wants for which I needed to add the following:

<pluginManagement>
    <plugins>
        <plugin>
            <groupId>org.eclipse.m2e</groupId>
            <artifactId>lifecycle-mapping</artifactId>
            <version>1.0.0</version>
            <configuration>
                <lifecycleMappingMetadata>
                    <pluginExecutions>
                        <pluginExecution>
                            <pluginExecutionFilter>
                                <groupId>org.apache.maven.plugins</groupId>
                                <artifactId>maven-compiler-plugin</artifactId>
                                <versionRange>[3.1,)</versionRange>
                                <goals>
                                    <goal>compile</goal>
                                    <goal>testCompile</goal>
                                </goals>
                            </pluginExecutionFilter>
                            <action>
                                <ignore />
                            </action>
                        </pluginExecution>
                    </pluginExecutions>
                </lifecycleMappingMetadata>
            </configuration>
        </plugin>
    </plugins>
</pluginManagement>

It doesn't look like the Eclise project is properly configured for a Java application either. There's no configuration for a Java src tree. Below is the .project file:

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
        <name>demo</name>
        <comment></comment>
        <projects>
        </projects>
        <buildSpec>
                <buildCommand>
                        <name>org.eclipse.m2e.core.maven2Builder</name>
                        <arguments>
                        </arguments>
                </buildCommand>
        </buildSpec>
        <natures>
                <nature>org.eclipse.m2e.core.maven2Nature</nature>
        </natures>
</projectDescription>

I can manually run the app as per How to run Spring Boot web application in Eclipse itself? (by executing [Project] --> Run As --> Maven Build... --> Goal: spring-boot:run

回答1:

You'll need to install the Spring Tool Suite plug-in for Eclipse. Then you'll see the "Spring Boot App" run configuration (and other STS features).

回答2:

To create a new spring-boot project in sts just click new spring-starter project, that will create the project for you. New->Project->Spring->Spring starter project

You'll run throught the wizard select 'Web' checkbox to have the web app selected this will create an application class like this

@SpringBootApplication
public class DemoApplication {

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

My auto generated POM

<?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>1.2.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <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>

回答3:

After creating a Spring Boot application via the Spring Starter project via the menu need to do additional steps: Go into project properties and enable the Java facet. Then, right-click project and Maven > Update Project.

来源：https://stackoverflow.com/questions/33484363/how-do-i-create-a-spring-boot-starter-project-in-eclipse-that-is-properly-config

标签

java

eclipse

maven

spring-tool-suite