springboot使用grpc及consul实现负载均衡微服务项目集群
写写吧，这个项目配置搞的我着实有点火大，折腾了2天时间配置maven的pom文件。背景：基于springboot技术，没有使用spring cloud全家桶，而是使用的grpc+consul的方式进行开发，原因是经过实测，grpc性能好于spring cloud全家桶，另外spring cloud全家桶开发的时候微服务调用代码编写比较麻烦，不如grpc可以直接一键自动生成，除了性能、开发麻烦，..
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写写吧，这个项目配置搞的我着实有点火大，折腾了2天时间配置maven的pom文件。
背景：基于springboot技术，没有使用spring cloud全家桶，而是使用的grpc+consul的方式进行开发，原因是经过实测，grpc性能好于spring cloud全家桶，另外spring cloud全家桶开发的时候微服务调用代码编写比较麻烦，不如grpc可以直接一键自动生成，除了性能、开发麻烦，还有grpc支持异构语言，后期不管是用go语言开发服务供java调用，还是java开发服务供go等进行调用都很方便。
既然选择了不用spring cloud全家桶，服务发现与注册、健康检查、负载均衡这些就都需要找到对应的处理方法，这里使用的是国人开发的grpc-spring-boot-starter,项目地址为https://github.com/yidongnan/grpc-spring-boot-starter 。
项目使用IDEA进行创建，分别建立了几个子项目，基础项目的maven配置参数如下：
<?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>XXXX</groupId>
<artifactId>XXXX</artifactId>
<version>1.0-SNAPSHOT</version>
<modules>
<module>xxx_rpc</module>
<module>xxx_service</module>
<module>xxx_web</module>
<module>xxx_client</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath/>
</parent>
<packaging>pom</packaging>
<name>XXXX</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<slf4j.version>1.7.16</slf4j.version>
<grpc.version>1.23.0</grpc.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-all</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-api</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-stub</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-auth</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-context</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-core</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-services</artifactId>
<version>${grpc.version}</version>
</dependency>
<!--<dependency>-->
<!--<groupId>io.grpc</groupId>-->
<!--<artifactId>grpc-Channel</artifactId>-->
<!--<version>${grpc.version}</version>-->
<!--</dependency>-->
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf-lite</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf-services</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf-stub</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>3.9.1</version>
</dependency>
<dependency>
<groupId>net.devh</groupId>
<artifactId>grpc-spring-boot-starter</artifactId>
<version>2.5.1.RELEASE</version>
<exclusions>
<exclusion>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>net.devh</groupId>
<artifactId>grpc-server-spring-boot-starter</artifactId>
<version>2.5.1.RELEASE</version>
<exclusions>
<exclusion>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>20.0</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.39.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-tcnative-boringssl-static</artifactId>
<version>2.0.25.Final</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<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>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.58</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.12</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.12</version>
</dependency>
<dependency>
<groupId>com.belerweb</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.3</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
</dependencies>
<build>
<finalName>XXXX</finalName>
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</build>
</project>
基础父项目配置内容就是上面这些，看上去稀松平常，这可是跳了数个坑才得到的结果，具体包括：grpc-spring-boot-starter这个项目，2.5.1版本引用的是grpc的1.22.2版本，然后grpc 1.22.2版本会自动加载一个叫做grpc-netty-shaded.jar的文件，不知道什么原因，只要类搜索路径里面有这个文件，一启动项目就报错，这玩意好像是想在它的所在路径下面找一堆jar依赖，这是第一个坑。第二个坑是com.google.guava这个包，最新版有些类已经移除掉了，也不知道是哪个jar依赖了这个东西，经过反复试验，grpc 1.23.0配合这个20.0版本是没有问题的。
其他还有找不到grpc-Channel之类的坑，后面慢慢说吧。
下面是grpc接口proto文件所在的项目，这些.proto文件需要经过protobuf插件编译以后才能使用，所以这个子项目的配置内容如下：
<?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">
<parent>
<artifactId>XXXX</artifactId>
<groupId>XXXX</groupId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>xxx_rpc</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>shinow_rpc</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-all</artifactId>
</dependency>
</dependencies>
<build>
<finalName>xxx_rpc</finalName>
<plugins>
<!--跳过test测试-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<!--添加protobuf-plugin插件-->
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>0.6.1</version>
<configuration>
<protocArtifact>com.google.protobuf:protoc:3.9.1:exe:${os.detected.classifier}</protocArtifact>
<pluginId>grpc-java</pluginId>
<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.23.0:exe:${os.detected.classifier}</pluginArtifact>
<!--默认值-->
<protoSourceRoot>${project.basedir}/src/main/proto</protoSourceRoot>
<!--默认值-->
<!--<outputDirectory>${project.build.directory}/generated-sources/protobuf/java</outputDirectory>-->
<outputDirectory>${project.basedir}/src/main/java</outputDirectory>
<!--设置是否在生成java文件之前清空outputDirectory的文件，默认值为true，设置为false时也会覆盖同名文件-->
<clearOutputDirectory>false</clearOutputDirectory>
</configuration>
<executions>
<execution>
<!--在执行mvn compile的时候会执行以下操作-->
<phase>compile</phase>
<goals>
<!--生成OuterClass类-->
<goal>compile</goal>
<!--生成Grpc类-->
<goal>compile-custom</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
<!--</pluginManagement>-->
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>1.6.0</version>
</extension>
</extensions>
</build>
</project>
这个子项目没有什么坑，要说有的话就是项目路径不能有中文，必须把项目建到英文路径下面才能正常执行。
然后是提供微服务的项目，项目pom.xml文件内容如下:
<?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">
<parent>
<artifactId>XXXX</artifactId>
<groupId>XXXX</groupId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>xxx_service</artifactId>
<name>xxx_service</name>
<packaging>${project.packaging}</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<skipTests>true</skipTests>
</properties>
<profiles>
<!--开发阶段以jar方式打包运行-->
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<project.packaging>jar</project.packaging>
</properties>
</profile>
<!--release阶段以war方式分发部署-->
<profile>
<id>release</id>
<properties>
<project.packaging>war</project.packaging>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>spring-boot-starter-tomcat</artifactId>
<groupId>org.springframework.boot</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<!--servlet依赖jar-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<!--jsp依赖jar-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
<scope>provided</scope>
</dependency>
<!--Jstl标签依赖的jar包start-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
</profile>
</profiles>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>2.1.5</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.10</version>
<exclusions>
<exclusion>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.6</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
<version>2.1.2.RELEASE</version>
</dependency>
<dependency>
<groupId>net.devh</groupId>
<artifactId>grpc-server-spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>net.devh</groupId>
<artifactId>grpc-spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_rpc</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_utils</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.10</version>
</dependency>
<!-- optional=true,依赖不会传递，该项目依赖devtools；之后依赖myboot项目的项目如果想要使用devtools，需要重新引入 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
<scope>true</scope>
</dependency>
<!--引入springboot 内嵌tomcat对jsp的解析包-->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!--servlet依赖jar-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</dependency>
<!--jsp依赖jar-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
</dependency>
<!--Jstl标签依赖的jar包start-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-all</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-services</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
</dependency>
</dependencies>
<build>
<finalName>xxx_service</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<compilerArgs>
<arg>-Xlint:-path</arg>
</compilerArgs>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
<resources>
<resource>
<directory>src/main/webapp</directory>
<targetPath>META-INF/resources</targetPath>
<includes>
<include>**/**</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.*</include>
</includes>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
</build>
</project>
配置文件内容没有太特殊的，然后是springboot的项目启动配置文件参数文件，内容如下：
#开发配置
spring.output.ansi.enabled: always
spring:
jmx:
default-domain: xxx_service
application:
name: xxx_service
sleuth:
sampler:
probability: 1
cloud:
consul:
host: 127.0.0.1
port: 8500
discovery:
prefer-ip-address: true
healthCheckPath: /actuator/health
healthCheckInterval: 10s
instance-id: ${spring.application.name}:${vcap.application.instance_id:${spring.application.instance_id:${random.value}}}
serviceName: xxx-${spring.application.name}
logging:
config: classpath:logback-dev.xml
server:
port: 8082
grpc:
server:
port: 9090看到最后那个grpc.server.port=9090没有，你要是不写，项目启动的时候它也会去9090端口进行监听，但是，微服务的调用端是无法知道到哪个端口去进行grpc调用的，必须把上面那个配置参数写上以后微服务的调用端才能知道去9090端口找微服务，巨坑！因为这个差点就放弃grpc+consul的方案了，因为consul去检查服务健康状态是基于8082端口去检测的，当时就特别纳闷，grpc的调用端怎么才能知道去到9090端口找微服务进行调用呢，写上这个参数以后再去consul里面看，会多出来一个TAG，里面注明了grpc服务端口在9090。
然后是调用端，这边就比较简单了，子项目pom.xml文件内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>XXXX</artifactId>
<groupId>XXXX</groupId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<version>1.0-SNAPSHOT</version>
<artifactId>xxx_web</artifactId>
<packaging>${project.packaging}</packaging>
<name>xxx_web</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<commons.fileupload.version>1.3.1</commons.fileupload.version>
<skipTests>true</skipTests>
</properties>
<profiles>
<!--开发阶段以jar方式打包运行-->
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<project.packaging>jar</project.packaging>
</properties>
</profile>
<!--release阶段以war方式分发部署-->
<profile>
<id>release</id>
<properties>
<project.packaging>war</project.packaging>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>spring-boot-starter-tomcat</artifactId>
<groupId>org.springframework.boot</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<!--servlet依赖jar-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<!--jsp依赖jar-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
<scope>provided</scope>
</dependency>
<!--Jstl标签依赖的jar包start-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
</profile>
</profiles>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- 添加springboot 整合 consul的环境jar包 -->
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-consul-discovery -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
<version>2.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
<version>2.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons.fileupload.version}</version>
</dependency>
<!--grpc客户端-->
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_rpc</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_utils</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_power</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>XXXX</groupId>
<artifactId>xxx_client</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- tomcat 的支持.-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!--jsp页面使用jstl标签 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!--用于编译jsp-->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!--集成sitemesh装饰器-->
<dependency>
<groupId>org.sitemesh</groupId>
<artifactId>sitemesh</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional><!-- optional=true,依赖不会传递，该项目依赖devtools；之后依赖myboot项目的项目如果想要使用devtools，需要重新引入 -->
<scope>true</scope>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>net.devh</groupId>
<artifactId>grpc-client-spring-boot-starter</artifactId>
<version>2.5.1.RELEASE</version>
<exclusions>
<exclusion>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty-shaded</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-tcnative-boringssl-static</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-all</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-api</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-stub</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-auth</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-context</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-core</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-services</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf-lite</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf-services</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf-stub</artifactId>
</dependency>
</dependencies>
<build>
<finalName>xxx_web</finalName>
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>compile</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>
${project.parent.basedir}/target/classes
</outputDirectory>
<resources>
<resource>
<directory>src/main/webapp</directory>
<!--注意此次必须要放在此目录下才能被访问到 -->
<targetPath>META-INF/resources</targetPath>
<includes>
<include>**/**</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork> <!--fork : 如果没有该项配置，devtools不会起作用，即应用不会restart -->
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/webapp</directory>
<targetPath>META-INF/resources</targetPath>
<includes>
<include>**/**</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*</include>
</includes>
</resource>
</resources>
</build>
</project>
然后项目的application.yml文件内容如下：
server:
port: 8081
jsp-servlet:
servlet:
context-path: /xxxx
jsp:
class-name: org.apache.jasper.servlet.JspServlet
spring:
jmx:
default-domain: xxx_web
application:
name: xxx_web
mvc:
view:
prefix: /WEB-INF/views/
suffix: .jsp
resources:
static-locations: classpath:/static/
sleuth:
sampler:
probability: 1
#cloud配置
cloud:
consul:
host: 127.0.0.1
port: 8500
discovery:
prefer-ip-address: true
#热部署配置
devtools:
restart:
enabled: true
exclude: WEB-INF/**
additional-paths: src/main/java
#上传文件大小配置
servlet:
multipart:
enabled: true
#单个文件最大
max-file-size: 30MB
#上传数据总大小
max-request-size: 10GB
redis:
host: 127.0.0.1
port: 6379
password:
jedis:
pool:
max-active: 8
max-idle: 0
max-wait: -1
logging:
config: classpath:logback-dev.xml
# Grpc配置
grpc:
client:
xxx-xxx-service: #这个名称需要和consul里面的服务名称一致
enableKeepAlive: true
keepAliveWithoutCalls: true
negotiationType: plaintext
#springboot自动装配控制台输出级别设置为error
logging.level.org.springframework.boot: DEBUG
logging.level.org.springframework.boot.autoconfigure: DEBUG
项目跑起来以后访问consul，里面可以看到注册的微服务名称及提供服务的IP地址，可以看到健康检查的情况，客户端需要访问微服务时，会自动从可用的微服务里面进行负载均衡调用，客户端会每隔10秒自动检测服务的可用性，发现服务不可用时就通过其他服务进行微服务调用。
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