2018-08-01 Spring-boot, dubbo, multiple-modules, zoo-keeper(2)

We know that both provider & consumer need to have the same definition of service-interface, in order to co-work through zoo-keeper and dubbo.
It will be good, if we can split the definition of service-interface into a library-project, which can be shared by provider & consumer.

Step 4 Separate the service-interface into a library-project

Create the folder-structure for the library-project.

e:\Downloads\documents\STS_projects\justProject>cd common_api

e:\Downloads\documents\STS_projects\justProject\common_api>mkdir src\main\java\mapi

e:\Downloads\documents\STS_projects\justProject\common_api>tree .
卷 Tools 的文件夹 PATH 列表
卷序列号为 E885-5830
E:\DOWNLOADS\DOCUMENTS\STS_PROJECTS\JUSTPROJECT\COMMON_API
└─src
    └─main
        └─java
            └─mapi

Create the pom.xml for the library-project

Content of common_api\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.justproject.example</groupId>
    <artifactId>common_api</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>com.justproject.example</groupId>
        <artifactId>parentproject</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <dependencies>
    </dependencies>
</project>

Try to build this empty project


e:\Downloads\documents\STS_projects\justProject\common_api>tree . /f
卷 Tools 的文件夹 PATH 列表
卷序列号为 E885-5830
E:\DOWNLOADS\DOCUMENTS\STS_PROJECTS\JUSTPROJECT\COMMON_API
│  pom.xml
│
└─src
    └─main
        └─java
            └─mapi

e:\Downloads\documents\STS_projects\justProject\common_api>mvn clean package
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------< com.justproject.example:common_api >-----------------
[INFO] Building common_api 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.6.1:clean (default-clean) @ common_api ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ common_api ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ common_api ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ common_api ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ common_api ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar: e:\Downloads\documents\STS_projects\justProject\common_api\target\common_api-1.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.925 s
[INFO] Finished at: 2018-08-01T12:29:09+08:00
[INFO] ------------------------------------------------------------------------

e:\Downloads\documents\STS_projects\justProject\common_api>tree . /f
卷 Tools 的文件夹 PATH 列表
卷序列号为 E885-5830
E:\DOWNLOADS\DOCUMENTS\STS_PROJECTS\JUSTPROJECT\COMMON_API
│  pom.xml
│
├─src
│  └─main
│      └─java
│          └─mapi
└─target
    │  common_api-1.0-SNAPSHOT.jar
    │
    ├─maven-archiver
    │      pom.properties
    │
    └─maven-status
        └─maven-compiler-plugin
            └─compile
                └─default-compile
                        inputFiles.lst


e:\Downloads\documents\STS_projects\justProject\common_api>

Add a module in parent-project.

pom.xml of parent-project

<?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.justproject.example</groupId>
    <artifactId>parentproject</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.7.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
    </dependencies>

    <modules>
        <module>provider</module>
        <module>common_api</module>
    </modules>
</project>

Define another service-interface in the library-project

Content of common_api\src\main\java\mapi\IAnotherService.java

package mapi;

public interface IAnotherService{
    String sayHello();
}

Package the library-project again.

e:\Downloads\documents\STS_projects\justProject\common_api>tree . /f
卷 Tools 的文件夹 PATH 列表
卷序列号为 E885-5830
E:\DOWNLOADS\DOCUMENTS\STS_PROJECTS\JUSTPROJECT\COMMON_API
│  pom.xml
│
├─src
│  └─main
│      └─java
│          └─mapi
│                  IAnotherService.java
│
└─target
    │  common_api-1.0-SNAPSHOT.jar
    │
    ├─maven-archiver
    │      pom.properties
    │
    └─maven-status
        └─maven-compiler-plugin
            └─compile
                └─default-compile
                        inputFiles.lst


e:\Downloads\documents\STS_projects\justProject\common_api>mvn clean package
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------< com.justproject.example:common_api >-----------------
[INFO] Building common_api 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.6.1:clean (default-clean) @ common_api ---
[INFO] Deleting e:\Downloads\documents\STS_projects\justProject\common_api\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ common_api ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to e:\Downloads\documents\STS_projects\justProject\common_api\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ common_api ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ common_api ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ common_api ---
[INFO] Building jar: e:\Downloads\documents\STS_projects\justProject\common_api\target\common_api-1.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.000 s
[INFO] Finished at: 2018-08-01T13:27:28+08:00
[INFO] ------------------------------------------------------------------------

e:\Downloads\documents\STS_projects\justProject\common_api>tree . /f
卷 Tools 的文件夹 PATH 列表
卷序列号为 E885-5830
E:\DOWNLOADS\DOCUMENTS\STS_PROJECTS\JUSTPROJECT\COMMON_API
│  pom.xml
│
├─src
│  └─main
│      └─java
│          └─mapi
│                  IAnotherService.java
│
└─target
    │  common_api-1.0-SNAPSHOT.jar
    │
    ├─classes
    │  └─mapi
    │          IAnotherService.class
    │
    ├─generated-sources
    │  └─annotations
    ├─maven-archiver
    │      pom.properties
    │
    └─maven-status
        └─maven-compiler-plugin
            └─compile
                └─default-compile
                        createdFiles.lst
                        inputFiles.lst


e:\Downloads\documents\STS_projects\justProject\common_api>jar tvf target\common_api-1.0-SNAPSHOT.jar
     0 Wed Aug 01 13:27:28 CST 2018 META-INF/
   387 Wed Aug 01 13:27:28 CST 2018 META-INF/MANIFEST.MF
     0 Wed Aug 01 13:27:26 CST 2018 mapi/
   158 Wed Aug 01 13:27:26 CST 2018 mapi/IAnotherService.class
     0 Wed Aug 01 13:27:28 CST 2018 META-INF/maven/
     0 Wed Aug 01 13:27:28 CST 2018 META-INF/maven/com.justproject.example/
     0 Wed Aug 01 13:27:28 CST 2018 META-INF/maven/com.justproject.example/common_api/
   613 Wed Aug 01 12:27:38 CST 2018 META-INF/maven/com.justproject.example/common_api/pom.xml
   137 Wed Aug 01 13:27:28 CST 2018 META-INF/maven/com.justproject.example/common_api/pom.properties

e:\Downloads\documents\STS_projects\justProject\common_api>

Step 5 Make provider-project depend on library-project

Define the dependency in pom.xml of the provider-project.

Content of provider\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.justproject.example</groupId>
    <artifactId>provider</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>


    <parent>
        <groupId>com.justproject.example</groupId>
        <artifactId>parentproject</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>com.justproject.example</groupId>
            <artifactId>common_api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>io.dubbo.springboot</groupId>
            <artifactId>spring-boot-starter-dubbo</artifactId>
            <version>1.0.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.6</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

Add a service in provider-project, to implement the service-interface in library-project. Also use the dubbo-annotation @Service here.

Content of provider\src\main\java\mservice\AnotherServiceImp.java

package mservice;

import com.alibaba.dubbo.config.annotation.Service;

import mapi.IAnotherService;

@Service
public class AnotherServiceImp implements IAnotherService {

    @Override
    public String sayHello() {
        return "Hello from AnotherServiceImp";
    }

}

Try to package the provider-project now.

E:\Downloads\documents\STS_projects\justProject\provider>mvn package
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.justproject.example:provider >------------------
[INFO] Building provider 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[WARNING] The POM for com.justproject.example:common_api:jar:1.0-SNAPSHOT is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.301 s
[INFO] Finished at: 2018-08-01T13:37:04+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project provider: Could not resolve dependencies for project com.justproject.example:provider:jar:1.0-SNAPSHOT: Could not find artifact com.justproject.example:common
_api:jar:1.0-SNAPSHOT -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException

The reason of the failure is that, Maven cannot find the expected jar package of the library-project.

Package & Install the library-project into local-repository, so that it could be included by the provider-project.


e:\Downloads\documents\STS_projects\justProject\common_api>mvn clean package install
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------< com.justproject.example:common_api >-----------------
[INFO] Building common_api 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.6.1:clean (default-clean) @ common_api ---
[INFO] Deleting e:\Downloads\documents\STS_projects\justProject\common_api\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ common_api ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to e:\Downloads\documents\STS_projects\justProject\common_api\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ common_api ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ common_api ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ common_api ---
[INFO] Building jar: e:\Downloads\documents\STS_projects\justProject\common_api\target\common_api-1.0-SNAPSHOT.jar
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ common_api ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory e:\Downloads\documents\STS_projects\justProject\common_api\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ common_api ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ common_api ---
[INFO] No tests to run.
[INFO] Skipping execution of surefire because it has already been run for this configuration
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ common_api ---
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ common_api ---
[INFO] Installing e:\Downloads\documents\STS_projects\justProject\common_api\target\common_api-1.0-SNAPSHOT.jar to C:\Users\home\.m2\repository\com\justproject\example\common_api\1.0-SNAPSHOT\common_a
pi-1.0-SNAPSHOT.jar
[INFO] Installing e:\Downloads\documents\STS_projects\justProject\common_api\pom.xml to C:\Users\home\.m2\repository\com\justproject\example\common_api\1.0-SNAPSHOT\common_api-1.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.555 s
[INFO] Finished at: 2018-08-01T13:38:47+08:00
[INFO] ------------------------------------------------------------------------

e:\Downloads\documents\STS_projects\justProject\common_api>

Install the parent-project.


E:\Downloads\documents\STS_projects\justProject\provider>cd ..

E:\Downloads\documents\STS_projects\justProject>mvn install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] parentproject                                                      [pom]
[INFO] common_api                                                         [jar]
[INFO] provider                                                           [jar]
[INFO]
[INFO] ---------------< com.justproject.example:parentproject >----------------
[INFO] Building parentproject 1.0-SNAPSHOT                                [1/3]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ parentproject ---
[INFO] Installing E:\Downloads\documents\STS_projects\justProject\pom.xml to C:\Users\home\.m2\repository\com\justproject\example\parentproject\1.0-SNAPSHOT\parentproject-1.0-SNAPSHOT.pom
[INFO]
[INFO] -----------------< com.justproject.example:common_api >-----------------
[INFO] Building common_api 1.0-SNAPSHOT                                   [2/3]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory E:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO] skip non existing resourceDirectory E:\Downloads\documents\STS_projects\justProject\common_api\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ common_api ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to E:\Downloads\documents\STS_projects\justProject\common_api\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ common_api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory E:\Downloads\documents\STS_projects\justProject\common_api\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ common_api ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ common_api ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ common_api ---
[INFO] Building jar: E:\Downloads\documents\STS_projects\justProject\common_api\target\common_api-1.0-SNAPSHOT.jar
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ common_api ---
[INFO] Installing E:\Downloads\documents\STS_projects\justProject\common_api\target\common_api-1.0-SNAPSHOT.jar to C:\Users\home\.m2\repository\com\justproject\example\common_api\1.0-SNAPSHOT\common_a
pi-1.0-SNAPSHOT.jar
[INFO] Installing E:\Downloads\documents\STS_projects\justProject\common_api\pom.xml to C:\Users\home\.m2\repository\com\justproject\example\common_api\1.0-SNAPSHOT\common_api-1.0-SNAPSHOT.pom
[INFO]
[INFO] ------------------< com.justproject.example:provider >------------------
[INFO] Building provider 1.0-SNAPSHOT                                     [3/3]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ provider ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ provider ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 4 source files to E:\Downloads\documents\STS_projects\justProject\provider\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ provider ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory E:\Downloads\documents\STS_projects\justProject\provider\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ provider ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ provider ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ provider ---
[INFO] Building jar: E:\Downloads\documents\STS_projects\justProject\provider\target\provider-1.0-SNAPSHOT.jar
[INFO]
[INFO] --- spring-boot-maven-plugin:1.5.7.RELEASE:repackage (default) @ provider ---
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ provider ---
[INFO] Installing E:\Downloads\documents\STS_projects\justProject\provider\target\provider-1.0-SNAPSHOT.jar to C:\Users\home\.m2\repository\com\justproject\example\provider\1.0-SNAPSHOT\provider-1.0-S
NAPSHOT.jar
[INFO] Installing E:\Downloads\documents\STS_projects\justProject\provider\pom.xml to C:\Users\home\.m2\repository\com\justproject\example\provider\1.0-SNAPSHOT\provider-1.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] parentproject 1.0-SNAPSHOT ......................... SUCCESS [  0.498 s]
[INFO] common_api ......................................... SUCCESS [  2.738 s]
[INFO] provider 1.0-SNAPSHOT .............................. SUCCESS [  1.873 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.872 s
[INFO] Finished at: 2018-08-01T13:41:42+08:00
[INFO] ------------------------------------------------------------------------

E:\Downloads\documents\STS_projects\justProject>

Now try to package the provider-project again.

E:\Downloads\documents\STS_projects\justProject\provider>mvn package
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.justproject.example:provider >------------------
[INFO] Building provider 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ provider ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ provider ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ provider ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory E:\Downloads\documents\STS_projects\justProject\provider\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ provider ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ provider ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ provider ---
[INFO] Building jar: E:\Downloads\documents\STS_projects\justProject\provider\target\provider-1.0-SNAPSHOT.jar
[INFO]
[INFO] --- spring-boot-maven-plugin:1.5.7.RELEASE:repackage (default) @ provider ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.366 s
[INFO] Finished at: 2018-08-01T13:42:42+08:00
[INFO] ------------------------------------------------------------------------

Run the provider.

E:\Downloads\documents\STS_projects\justProject\provider>java -jar target\provider-1.0-SNAPSHOT.jar

Check at zoo-keeper, to see that the two services are registered.

[zk: 127.0.0.1:2181(CONNECTED) 34] ls /
[dubbo, zookeeper]
[zk: 127.0.0.1:2181(CONNECTED) 35] ls /dubbo
[mapi.IAnotherService, mservice.IDemoService]

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2018-08-01 Spring-boot, dubbo, multiple-modules, zoo-keeper(2)

Step 4 Separate the service-interface into a library-project

Step 5 Make provider-project depend on library-project

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