【spring cloud】子模块module -->导入一个新的spring boot项目作为spring cloud的一个子模块微服务，怎么做/或者 每次导入一个新的spring boot项目，IDEA不识别子module，启动类无法启动/右下角没有蓝色图标
如题：导入一个新的spring boot项目作为spring cloud的一个子模块微服务，怎么做
或者说每次导入一个新的spring boot项目，IDEA不识别，启动类无法启动，怎么解决
下面分别展示[tx-manager只是作为例子进行操作，你可以把这个服务名字想象成例如springcloud-ms-xxx等等都可以]
一.只需要将一个spring boot服务识别为子模块，不会建立真正的父子依赖关系
将tx-Manager修改为本微服务组可以识别的子模块module
导入更新
成功识别为子module
二.需要建立真正父子依赖关系的 子模块识别
下面一起来走一遍这个流程：
1.将一个spring boot服务导入spring cloud中作为一个子模块
如图：这里有一个现成的spring cloud微服务集群，【如何创建一个spring cloud微服务：https://www.cnblogs.com/sxdcgaq8080/p/9035724.html】
然后
打开本服务根目录在资源管理器下：
可以看到根目录下的现有的两个ms 和parent的pom文件
然后将想要加入的外部的一个spring boot项目粘贴到此处【将tx-manager整个目录拷贝过来】
如下：
修该名字为统一的ms名字
这个时候，再打开idea ，看到
2.解决上面导入但是没有被识别的问题
所以先解决这个问题：
现将java目录设置为tx-manager这个微服务的跟路径
同理，设置resource目录为根资源路径
ok。现在就剩最后一个pom.xml文件的转变了
3.整理pom.xml文件内容，建立和最外层parent的pom之间的父子依赖关系
先看一下最外层的parent的pom.xml完整的依赖：
<?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.swapping</groupId> <artifactId>springcloud</artifactId> <version>0.0.1-SNAPSHOT</version> <!-- 注意 最后打包 最外层的pom 需要更改为 pom而不是jar <packaging>jar</packaging> --> <packaging>pom</packaging> <name>springcloud</name> <description>Demo project for Spring cloud</description> <modules> <module>springcloud-ms-eureka</module> <module>springcloud-ms-member</module> </modules> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.5.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> <spring-cloud.version>2.0.0.RELEASE</spring-cloud.version> <lcn.last.version>4.1.0</lcn.last.version> </properties> <dependencies> <!--========================spring boot 基础依赖 start ==============================--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--========================spring boot 基础依赖 start ==============================--> <!--最外层 主项目 添加spring cloud依赖 https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter</artifactId> <version>${spring-cloud.version}</version> </dependency> <!-- ========================LCN 分布式事务 start============================--> <dependency> <groupId>com.codingapi</groupId> <artifactId>transaction-springcloud</artifactId> <version>${lcn.last.version}</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>*</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>com.codingapi</groupId> <artifactId>tx-plugins-db</artifactId> <version>${lcn.last.version}</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>*</artifactId> </exclusion> </exclusions> </dependency> <!-- ========================LCN 分布式事务 END============================--> <!-- ======================== DB相关所有jar start =============================--> <!-- 数据库连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> </dependency> <!-- 使用mysql数据库 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <!-- 假设 每一个子模块都会 使用 jpa 和 mybatis 操作数据库 才将相关jar放在父级pom中 --> <!-- jpa --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <!-- mybatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency> <!-- mybatis 分页插件 --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.2.5</version> </dependency> <!-- ======================== DB相关所有jar end =============================--> <!-- ======================== redis start ======================== --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <!-- ======================== redis end ======================== --> <!-- ======================== 公用 工具包 start ==============================--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.47</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.8.1</version> </dependency> <dependency> <groupId>com.xiaoleilu</groupId> <artifactId>hutool-all</artifactId> <version>3.3.2</version> </dependency> <dependency> <groupId>com.belerweb</groupId> <artifactId>pinyin4j</artifactId> <version>2.5.1</version> </dependency> <!-- base64加密解密 --> <dependency> <groupId>org.apache.ws.commons.util</groupId> <artifactId>ws-commons-util</artifactId> <version>1.0.2</version> </dependency> <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>22.0</version> </dependency> <!-- ======================== 公用 工具包 end ==============================--> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Finchley.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
再看一下现在的ms-member这个现成的子module的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.swapping</groupId> <artifactId>springcloud-ms-member</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>springcloud-ms-member</name> <description>ms-member is consumer ,transfer ms-order and ms-integral</description> <parent> <groupId>com.swapping</groupId> <artifactId>springcloud</artifactId> <version>0.0.1-SNAPSHOT</version> </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> </project>
最后看一下现在的tx-manage的pom.xml依赖：
<?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.codingapi</groupId> <artifactId>tx-manager</artifactId> <version>4.2.0-SNAPSHOT</version> <packaging>jar</packaging> <name>tx-manager</name> <description>tx-manager</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.4.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> <maven.compile.source>1.7</maven.compile.source> <maven.compile.target>1.7</maven.compile.target> <java.version>1.7</java.version> <guava.version>19.0</guava.version> <spring-cloud.version>Dalston.SR1</spring-cloud.version> <maven.deploy.skip>true</maven.deploy.skip> <maven.install.skip>true</maven.install.skip> </properties> <dependencies> <dependency> <groupId>com.github.1991wangliang</groupId> <artifactId>lorne_core</artifactId> <version>1.0.0</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>*</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-all</artifactId> <version>4.1.12.Final</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> <exclusions> <exclusion> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> </exclusion> </exclusions> </dependency> <!--<dependency>--> <!--<groupId>org.springframework.cloud</groupId>--> <!--<artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>--> <!--</dependency>--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-redis</artifactId> <version>1.3.8.RELEASE</version> </dependency> <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>${guava.version}</version> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>${maven-compiler-plugin.version}</version> <configuration> <source>${maven.compile.source}</source> <target>${maven.compile.target}</target> <encoding>${project.build.sourceEncoding}</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> <configuration> <skip>true</skip> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.6</version> <configuration> <archive> <manifest> <mainClass>com.codingapi.tm.TxManagerApplication</mainClass> <addClasspath>true</addClasspath> <classpathPrefix>lib/</classpathPrefix> </manifest> <manifestEntries> <Class-Path>./</Class-Path> </manifestEntries> </archive> <excludes> <exclude>config/**</exclude> </excludes> </configuration> </plugin> <plugin> <artifactId>maven-assembly-plugin</artifactId> <configuration> <appendAssemblyId>false</appendAssemblyId> <descriptors> <descriptor>src/main/build/package.xml</descriptor> </descriptors> </configuration> <executions> <execution> <id>make-assembly</id> <phase>package</phase> <goals> <goal>single</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
然后将tx-manager的pom按照member的更改：
<?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.codingapi</groupId> <artifactId>springcloud-ms-tx-manager</artifactId> <version>4.2.0-SNAPSHOT</version> <packaging>jar</packaging> <name>springcloud-ms-tx-manager</name> <description>tx-manager, LCN's distributed transaction coordinator</description> <parent> <groupId>com.swapping</groupId> <artifactId>springcloud</artifactId> <version>0.0.1-SNAPSHOT</version> </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>com.github.1991wangliang</groupId> <artifactId>lorne_core</artifactId> <version>1.0.0</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>*</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-all</artifactId> <version>4.1.12.Final</version> </dependency> </dependencies> </project>
并且在parent的pom.xml文件新增tx-manager子模块
最后导入：点击import changes
最后可以看到 这个子模块的pom文件终于被识别，并且父子依赖关系已经建立起来：
4.最后将tx-manager真正设立成子module，让子module的蓝色图标显示出来
到了这里，还不是真正的子模块
那如何让这个子模块的蓝色图标显示出来呢？
setting -->build,Execution,Deployment-->Build tools --> Maven -->Ignored Files -->勾选忽略的文件
取消勾选以后，就可以看到 子模块真正成功
至此，导入外部项目 即可成功 导入成子模块！！！并且被识别为子模块！！
