一、开发环境及工具
- jdk：1.8
- spring boot：2.0.4
- spring cloud：Finchley.SR1
- idea：2018
二、步骤
1.创建eurekaserver
（1）设置eurekaserver的pom文件
<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>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.4.RELEASEversion>
<relativePath/>
parent>
<groupId>com.qstgroupId>
<artifactId>eureka-serverartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>eureka-servername>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
<spring-cloud.version>Finchley.SR1spring-cloud.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-serverartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.9.7version>
dependency>
dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
（2）配置eurekaserver的application.yml文件
server:
port: 8761
eureka:
instance:
hostname: eureka-server
client:
fetch-registry: false
register-with-eureka: false
service-url:
serviceUrl: http://localhost:8761/eureka/
（3）在eurekaserver的主配置类上添加@EnableEurekaServer注解
package com.qst.eurekaserver;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
2.创建provider
（1）配置provider的pom文件
<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>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.4.RELEASEversion>
<relativePath/>
parent>
<groupId>com.qstgroupId>
<artifactId>providerartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>providername>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
<spring-cloud.version>Finchley.SR1spring-cloud.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.9.8version>
dependency>
dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
（2）配置provider的appliction.yml文件
server:
port: 8001
eureka:
instance:
prefer-ip-address: true
client:
service-url:
serviceUrl: http://localhost:8761/eureka/
spring:
application:
name: provider
（3）创建provider的user实体类
public class User implements Serializable {
private String name;
public User(String name) {
this.name = name;
}
public User() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "User{" +
"name='" + name + '\'' +
'}';
}
}
（4）创建provider的controller
@RestController
public class UserController {
@RequestMapping(value = "/provider", method = RequestMethod.POST)
public User changeUser(@RequestBody User user) {
System.out.println(user.toString());
user.setName("津津");
return user;
}
}
3.创建consumer
（1）配置consumer的pom文件
<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>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.4.RELEASEversion>
<relativePath/>
parent>
<groupId>com.qstgroupId>
<artifactId>consumerartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>consumername>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
<spring-cloud.version>Finchley.SR1spring-cloud.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.9.8version>
dependency>
dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
（2）配置consumer的application.yml文件
spring:
application:
name: consumer
server:
port: 8200
eureka:
instance:
prefer-ip-address: true
client:
service-url:
serviceUrl: http://localhost:8761/eureka/
（3）配置consumer的RestTemplate配置文件
@Configuration
public class RestTemplateConfig extends WebMvcConfigurationSupport {
@Bean
@LoadBalanced
RestTemplate restTemplate(){
RestTemplate restTemplate = new RestTemplate();
List<HttpMessageConverter<?>> messageConverters = restTemplate.getMessageConverters();
return restTemplate;
}
（4）在consumer的主配置类上添加@EnableDiscoveryClient注解
@EnableDiscoveryClient
@SpringBootApplication
public class ConsumerUserApplication {
public static void main(String[] args) {
SpringApplication.run(ConsumerUserApplication.class, args);
}
}
（5）创建consumer的实体类user（一定要添加属性的set方法！！！—> 反射中根据set方法为私有属性赋值 ）
public class User implements Serializable {
private String name;
public User(String name) {
this.name = name;
}
public User() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "User{" +
"name='" + name + '\'' +
'}';
}
}
（6）创建consumer的controller方法
@RestController
public class UserController {
@Autowired
RestTemplate restTemplate;
@GetMapping("/getUser")
public User getUser() {
User user = new User("津少");
User newUser= restTemplate.postForObject("http://PROVIDER/provider", user, User.class);
return newUser;
}
}
4.测试
启动eurekaserver -----> 启动provider -----> 启动consumer -----> 在浏览器上输入localhost:8200/getUser ------> 观察provider的控制台和网页显示的结果
