SpringCloud——服务接口(api)

SpringCloud的服务接口基本等同于SpringBoot开发的api接口，只不过在springCloud需要将自己的服务注册到注册中心，通过网关统一访问路径

一个简单的api接口

pom.xml

<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.springcloud.demo</groupId><artifactId>eureka-user</artifactId><version>dev</version><packaging>jar</packaging><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.7.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><properties><!--main方法类 --><start-class>com.cc.yonyou.rndealer.BootMain</start-class><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>Dalston.SR4</spring-cloud.version><!-- 同该版本feign集成需要swagger 2.5.0版本以上 --><swagger.version>2.5.0</swagger.version></properties><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-feign</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix-dashboard</artifactId></dependency><!--base64加密解密  --><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId><version>1.10</version></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.1.1</version></dependency><dependency><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-core</artifactId><version>1.3.2</version><scope>compile</scope><optional>true</optional></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>2.2.2</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.25</version></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.2.2</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.25</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.20</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.12</version></dependency><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper</artifactId><version>4.1.6</version></dependency><!-- Swagger --><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>${swagger.version}</version></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>${swagger.version}</version></dependency><dependency>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-redis</artifactId> <version>1.3.8.RELEASE</version> </dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.20</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.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin><!--打包跳过测试插件--><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><configuration><skip>true</skip></configuration></plugin></plugins></build></project>

application.properties

#eureka
spring.application.name = user
server.port=12003
eureka.client.serviceUrl.defaultZone=http://localhost:12000/eureka/
feign.hystrix.enabled=true#mybatis
mybatis.type-aliases-package=com.springcloud.demo.domain
mybatis.mapper-locations=classpath*:/mapper/*Mapper.xml
mybatis.configuration.map-underscore-to-camel-case=true
mybatis.configuration.use-generated-keys=true
mybatis.configuration.default-fetch-size=100
mybatis.configuration.default-statement-timeout=30#datasource
spring.datasource.username=root
spring.datasource.password=mysql
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/testspring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
spring.datasource.maxWait=60000
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.validationQuery=SELECT 1
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
spring.datasource.filters=stat
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

BootMain.java

package com.springcloud.demo;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;import springfox.documentation.annotations.ApiIgnore;
import springfox.documentation.swagger2.annotations.EnableSwagger2;@Controller
@SpringBootApplication
@ApiIgnore
@EnableScheduling
@EnableDiscoveryClient
@EnableFeignClients
@EnableSwagger2
@EnableHystrixDashboard
public class BootMain {public static void main(String[] args) {SpringApplication.run(BootMain.class, args);}@RequestMapping("/help")public String help() {return "redirect:swagger-ui.html";}}

api接口uers.java

package com.springcloud.demo.api;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;@RestController
public class UserApi {@RequestMapping(value="/test",method=RequestMethod.GET)public String test() {return "Hello World";}
}

基本代码与我们常写得api接口无异，只是在application.properties文件中添加了注册中心的路径

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