• 5、创建springcloud alibaba工程


    1、创建工程




    2、pom文件

    <?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.test</groupId>
        <artifactId>springcloud2021</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <packaging>pom</packaging>
    
        <!-- 统一管理jar包版本 -->
        <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>
            <junit.version>4.12</junit.version>
            <log4j.version>1.2.17</log4j.version>
            <lombok.version>1.16.18</lombok.version>
            <mysql.version>5.1.47</mysql.version>
            <druid.version>1.1.21</druid.version>
            <mybatis.spring.boot.version>1.3.0</mybatis.spring.boot.version>
        </properties>
    
        <!-- 子模块继承之后,提供作用:锁定版本+子modlue不用写groupId和version  -->
        <dependencyManagement>
            <dependencies>
                <!--spring boot 2.2.2-->
                <!--spring boot 2.4.2-->
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-dependencies</artifactId>
                    <version>2.4.2</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
                <!--spring cloud Hoxton.SR1-->
                <!--spring cloud 2020.0.0-->
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>2020.0.0</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
                <!--spring cloud alibaba 2.1.0.RELEASE-->
                <!--spring cloud alibaba 2.2.4.RELEASE-->
    
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>2.2.4.RELEASE</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
    
                <dependency>
                    <groupId>mysql</groupId>
                    <artifactId>mysql-connector-java</artifactId>
                    <version>${mysql.version}</version>
                </dependency>
                <dependency>
                    <groupId>com.alibaba</groupId>
                    <artifactId>druid</artifactId>
                    <version>${druid.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.mybatis.spring.boot</groupId>
                    <artifactId>mybatis-spring-boot-starter</artifactId>
                    <version>${mybatis.spring.boot.version}</version>
                </dependency>
                <dependency>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                    <version>${junit.version}</version>
                </dependency>
                <dependency>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                    <version>${log4j.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.projectlombok</groupId>
                    <artifactId>lombok</artifactId>
                    <version>${lombok.version}</version>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        <fork>true</fork>
                        <addResources>true</addResources>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    
    </project>
    

    3、Maven中的dependencyManagement和dependencies



    4、Rest微服务工程构建

    5、服务提供者

    6、服务消费者

    7、RestTemplate


    官网地址:
    https://docs.spring.io/spring-framework/docs/5.2.2.RELEASE/javadoc-api/org/springframework/web/client/RestTemplate.html

    RestTemplate调用体验
    https://www.cnblogs.com/zou-rong/p/12572700.html

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  • 原文地址:https://www.cnblogs.com/xidianzxm/p/14331901.html
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