[SCB-1434] add a springboot2 archetype

archetypes/business-service-spring-boot2-starter/README.md

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+## Welcome to use ServiceComb Java Chassis
+This project(module) is generate by *org.apache.servicecomb.archetypes:business-service-spring-boot-starter-archetype*, it use **spring-boot-starter-provider** to develop service producer.  
+
+### More works can be done further:
+1. Modify "HelloImpl", add your business service logic, or create some new producers to provide your services. More details can be found : http://servicecomb.apache.org/users/develop-with-spring-boot-starter/
+2. Modify "microservice.yaml", change APPLICATION_ID, service_description.name, version, and service center address, endpoints publish address etc. More details can be found : http://servicecomb.apache.org/users/service-definition/
+
+### Package your service
+Under project(module) root folder, run 
+```bash
+mvn package
+```
+Then you can get executable jar in target/bin folder:   
+- xxxxxx-{version}-exec.jar    
+```bash
+java -jar xxxxxx-{version}-exec.jar
+```
+*Notice: If you need to modify config setting in "microservice.yaml" like service center address but don't want repackage the executable jar, **you can direct place a new "microservice.yaml" file in same folder, then settings will be overridden.***
+
+## Spring Boot and ServiceComb
+### Why ServiceComb make integration with Spring Boot
+Spring Boot can accelerate develop speed of Spring application, it provides these features:
+* Can create independent executable Spring application
+* Tomcat embedded, Jetty as Web server, and do not need package(war)
+* Provide many starters in order to simplify maven dependency
+
+Using Spring Boot in microservice development, can greatly simplifying configure and deploy. ServiceComb is a microservice framework with full functionality of service management, focus on rapidly development of microservices, so integration with Spring Boot can obtain greater advantages.
+
+### How ServiceComb make integration with Spring Boot2
+Developers often use Spring Boot2 in the following way:
+* Java application : import `spring-boot2-starter-standalone` and set `web-application-type: none` in application.yaml then develop general application, does not contain WEB
+* Web application : import `spring-boot2-starter-servlet` then develop web application, also include an embedded Tomcat or Jetty server, and use Spring Web MVC framework to develop REST endpoints
+
+The first way, do not need any refactoring, directly startup ServiceComb via Spring Boot.
+
+The second way is replace `Spring MVC DispatcherServlet` with `ServiceComb RestServlet`.

archetypes/business-service-spring-boot2-starter/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<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">
+  <parent>
+    <groupId>org.apache.servicecomb</groupId>
+    <artifactId>archetypes</artifactId>
+    <version>1.3.0-SNAPSHOT</version>
+  </parent>
+
+  <groupId>org.apache.servicecomb.archetypes</groupId>
+  <name>Java Chassis::Archetypes::Spring Boot2 Starter</name>
+  <artifactId>business-service-spring-boot2-starter-archetype</artifactId>
+  <packaging>maven-archetype</packaging>
+  <modelVersion>4.0.0</modelVersion>
+
+  <properties>
+    <maven-archetype-packaging-version>2.3</maven-archetype-packaging-version>
+  </properties>
+
+  <build>
+    <extensions>
+      <extension>
+        <groupId>org.apache.maven.archetype</groupId>
+        <artifactId>archetype-packaging</artifactId>
+        <version>${maven-archetype-packaging-version}</version>
+      </extension>
+    </extensions>
+
+    <resources>
+      <resource>
+        <directory>src/main/resources</directory>
+        <filtering>false</filtering>
+      </resource>
+      <resource>
+        <directory>src/main/resources-filtered</directory>
+        <filtering>true</filtering>
+        <includes>
+          <include>**/archetype-metadata.xml</include>
+        </includes>
+      </resource>
+    </resources>
+  </build>
+</project>

archetypes/business-service-spring-boot2-starter/src/main/resources-filtered/META-INF/maven/archetype-metadata.xml

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+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<archetype-descriptor
+  xsi:schemaLocation="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0 http://maven.apache.org/xsd/archetype-descriptor-1.0.0.xsd"
+  name="camel-archetype-java"
+  xmlns="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <fileSets>
+    <fileSet filtered="true" packaged="true" encoding="UTF-8">
+      <directory>src/main/java</directory>
+      <includes>
+        <include>**/*.java</include>
+      </includes>
+    </fileSet>
+    <fileSet filtered="true" encoding="UTF-8">
+      <directory>src/main/resources</directory>
+      <includes>
+        <include>**/*</include>
+      </includes>
+    </fileSet>
+    <fileSet encoding="UTF-8">
+      <directory></directory>
+      <includes>
+        <include>README.md</include>
+      </includes>
+    </fileSet>
+  </fileSets>
+</archetype-descriptor>

archetypes/business-service-spring-boot2-starter/src/main/resources/archetype-resources/README.md

@@ -0,0 +1,36 @@
+## Welcome to use ServiceComb Java Chassis
+This project(module) is generate by *org.apache.servicecomb.archetypes:business-service-spring-boot-starter-archetype*, it use **spring-boot-starter-provider** to develop service producer.  
+
+### More works can be done further:
+1. Modify "HelloImpl", add your business service logic, or create some new producers to provide your services. More details can be found : http://servicecomb.apache.org/users/develop-with-spring-boot-starter/
+2. Modify "microservice.yaml", change APPLICATION_ID, service_description.name, version, and service center address, endpoints publish address etc. More details can be found : http://servicecomb.apache.org/users/service-definition/
+
+### Package your service
+Under project(module) root folder, run 
+```bash
+mvn package
+```
+Then you can get executable jar in target/bin folder:   
+- xxxxxx-{version}-exec.jar    
+```bash
+java -jar xxxxxx-{version}-exec.jar
+```
+*Notice: If you need to modify config setting in "microservice.yaml" like service center address but don't want repackage the executable jar, **you can direct place a new "microservice.yaml" file in same folder, then settings will be overridden.***
+
+## Spring Boot and ServiceComb
+### Why ServiceComb make integration with Spring Boot
+Spring Boot can accelerate develop speed of Spring application, it provides these features:
+* Can create independent executable Spring application
+* Tomcat embedded, Jetty as Web server, and do not need package(war)
+* Provide many starters in order to simplify maven dependency
+
+Using Spring Boot in microservice development, can greatly simplifying configure and deploy. ServiceComb is a microservice framework with full functionality of service management, focus on rapidly development of microservices, so integration with Spring Boot can obtain greater advantages.
+
+### How ServiceComb make integration with Spring Boot2
+Developers often use Spring Boot2 in the following way:
+* Java application : import `spring-boot2-starter-standalone` and set `web-application-type: none` in application.yaml then develop general application, does not contain WEB
+* Web application : import `spring-boot2-starter-servlet` then develop web application, also include an embedded Tomcat or Jetty server, and use Spring Web MVC framework to develop REST endpoints
+
+The first way, do not need any refactoring, directly startup ServiceComb via Spring Boot.
+
+The second way is replace `Spring MVC DispatcherServlet` with `ServiceComb RestServlet`.

archetypes/business-service-spring-boot2-starter/src/main/resources/archetype-resources/pom.xml

@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<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">
+  <groupId>${groupId}</groupId>
+  <artifactId>${artifactId}</artifactId>
+  <version>${version}</version>
+  <modelVersion>4.0.0</modelVersion>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <java-chassis.version>1.3.0-SNAPSHOT</java-chassis.version>
+    <springboot.version>2.1.2.RELEASE</springboot.version>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.apache.servicecomb</groupId>
+        <artifactId>java-chassis-dependencies-springboot2</artifactId>
+        <version>${java-chassis.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.servicecomb</groupId>
+      <artifactId>spring-boot2-starter-standalone</artifactId>
+    </dependency>
+  </dependencies>
+
+  <!--for package and deploy-->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <version>${springboot.version}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>repackage</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>${project.build.directory}/bin</outputDirectory>
+              <classifier>exec</classifier>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.6</version>
+        <configuration>
+          <archive>
+            <manifestEntries>
+              <Class-Path>.</Class-Path>
+            </manifestEntries>
+          </archive>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>

archetypes/business-service-spring-boot2-starter/src/main/resources/archetype-resources/src/main/java/Application.java

@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ${package};
+
+import org.apache.servicecomb.springboot2.starter.EnableServiceComb;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@EnableServiceComb
+public class Application {
+  public static void main(String[] args) {
+    SpringApplication.run(Application.class, args);
+  }
+}

archetypes/business-service-spring-boot2-starter/src/main/resources/archetype-resources/src/main/java/HelloConsumer.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ${package};
+
+import org.apache.servicecomb.provider.springmvc.reference.RestTemplateBuilder;
+import org.springframework.web.client.RestTemplate;
+
+public class HelloConsumer {
+  private final RestTemplate restTemplate = RestTemplateBuilder.create();
+
+  public void invokeHello() {
+    //service url is : cse://serviceName/operation
+    restTemplate.getForObject("cse://business-service/hello", String.class);
+  }
+}

archetypes/business-service-spring-boot2-starter/src/main/resources/archetype-resources/src/main/java/HelloImpl.java

@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ${package};
+
+import org.apache.servicecomb.provider.rest.common.RestSchema;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@RestSchema(schemaId = "hello")
+@RequestMapping(path = "/")
+public class HelloImpl {
+
+  @GetMapping(path = "/hello")
+  public String hello() {
+    return "Hello World!";
+  }
+}

archetypes/business-service-spring-boot2-starter/src/main/resources/archetype-resources/src/main/resources/application.yaml

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+#Set web-application-type to none then develop general application, does not contain WEB
+#If need to develop web application,Commented-Out it or set to servlet
+spring:
+  main:
+    web-application-type: none