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宝鸡做网站哪家好,网络营销概述,网站快捷导航ie怎么做,深圳网站建设公司设计目的：在本地搭建一个简单的openfeign使用场景，测试查询、新增等功能 平台：win10 技术栈：Springboot, SpringCloud, Nacos, Mybatis, MySql, Logback 框架作用说明： Nacos用于服务注册，将provider应用注…

目的：在本地搭建一个简单的openfeign使用场景，测试查询、新增等功能

平台：win10

技术栈：Springboot, SpringCloud, Nacos, Mybatis, MySql, Logback

框架作用说明：

  1. Nacos用于服务注册，将provider应用注册到Nacos，
  2. 客户端订阅该服务，然后用openfeign调用provider提供的rest接口
  3. 数据库采用mysql，mybatis提供orm功能
  4. 日志用logback

项目架构如下：

总共启动了4个应用：

nacos server, feigndemo (provider), feignclientdemo(client), mysql server

Nacos server采用单机模式启动：

startup.cmd -m standalone

MySQL：

创建数据库、用户，给用户授权，然后建表

create database feigndemo default character set utf8mb4;
use feigndemo;
create user 'feigndemo'@'localhost' identified by '123456';
-- grant privileges
Grant SELECT, insert, create,delete,update,alter,drop on feigndemo.* to 'feigndemo'@'localhost' with grant option;create table product (id int(16),name varchar(64),price double(10,2),delete_flag tinyint(1) not null default 0 comment '0:未删除，1:已删除',create_time datetime not null default CURRENT_TIMESTAMP comment '创建时间',update_time datetime not null default CURRENT_TIMESTAMP comment '更新时间'
) ENGINE=InnoDB DEFAULT charset=utf8mb4;

feigndemo主要源码

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><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.6.6</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>org.example</groupId><artifactId>feigndemo</artifactId><version>1.0-SNAPSHOT</version><name>feigndemo</name><!-- FIXME change it to the project's website --><url>http://www.example.com</url><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><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>2021.0.3</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2.2.7.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId><version>3.1.3</version></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-validation</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.2.2</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.33</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

配置文件：

application.yml

server:port: 8088spring:datasource:url: jdbc:mysql://localhost:3306/feigndemo?characterEncoding=UTF-8username: feigndemopassword: 123456driver-class-name: com.mysql.cj.jdbc.Driverapplication:name: feigndemocloud:nacos:discovery:server-addr: 127.0.0.1:8848namespace: b2b3c55a-abe5-47a4-a47e-03c57138d1d7mybatis:mapper-locations: classpath*:mapper/*.xml

logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration><contextName>${APP_NAME}</contextName><springProperty name="APP_NAME" scope="context" source="spring.application.name"/><springProperty name="LOG_FILE" scope="context" source="logging.file" defaultValue="../logs"/><springProperty name="LOG_POINT_FILE" scope="context" source="logging.file" defaultValue="../logs/point"/><springProperty name="LOG_MAXFILESIZE" scope="context" source="logback.filesize" defaultValue="50MB"/><springProperty name="LOG_FILEMAXDAY" scope="context" source="logback.filemaxday" defaultValue="7"/><springProperty name="ServerIP" scope="context" source="spring.cloud.client.ip-address" defaultValue="0.0.0.0"/><springProperty name="ServerPort" scope="context" source="server.port" defaultValue="0000"/><!-- 彩色日志 --><!-- 彩色日志依赖的渲染类 --><conversionRule conversionWord="clrc" converterClass="org.springframework.boot.logging.logback.ColorConverter"/><conversionRule conversionWord="ewtpc"converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter"/><!-- 彩色日志格式 --><property name="CONSOLE_LOG_PATTERN"value="%clrc(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} [%clrc(%X{traceId}){yellow},%clrc(%X{X-B3-TraceId}){yellow}] %clrc(%level){blue} %clrc(%logger){cyan} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%ewtpc}"/><property name="CONSOLE_LOG_PATTERN_NO_COLOR"value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%X{traceId},%X{X-B3-TraceId}] %level %logger %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%ewtpc}"/><!-- 控制台日志 --><appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"><withJansi>true</withJansi><encoder><pattern>${CONSOLE_LOG_PATTERN}</pattern><charset>UTF-8</charset></encoder></appender><!-- 按照每天生成常规日志文件 --><appender name="DAILY_LOG" class="ch.qos.logback.core.rolling.RollingFileAppender"><file>${LOG_FILE}/${APP_NAME}/${APP_NAME}.log</file><!-- 基于时间的分包策略 --><rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"><fileNamePattern>${LOG_FILE}/${APP_NAME}/${APP_NAME}.%d{yyyy-MM-dd}.%i.log</fileNamePattern><maxFileSize>100MB</maxFileSize><!--保留时间,单位:天--><maxHistory>30</maxHistory></rollingPolicy><encoder><pattern>${CONSOLE_LOG_PATTERN_NO_COLOR}</pattern><charset>UTF-8</charset></encoder></appender><logger name="com.ulisesbocchio" level="INFO"/><logger name="com.netflix" level="INFO"/><logger name="com.zaxxer.hikari" level="INFO"/><logger name="com.baomidou" level="INFO"/><logger name="org.example.spc" level="INFO"/><root level="INFO"><appender-ref ref="STDOUT"/><appender-ref ref="DAILY_LOG"/></root>
</configuration>

main方法类App.java：

@EnableDiscoveryClient
@SpringBootApplication
public class App 
{public static void main( String[] args ){SpringApplication.run(App.class, args);}
}

ProductMapper.java

package org.example.spc.consumer.mapper;import org.apache.ibatis.annotations.Param;
import org.example.spc.consumer.model.Product;
import org.springframework.stereotype.Repository;import java.util.List;//@Mapper
@Repository
public interface ProductMapper {Product findById(@Param("id") int id);void insert(Product product);List<Product> findAll();
}

ProductMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="org.example.spc.consumer.mapper.ProductMapper"><select id="findById" parameterType="int" resultType="org.example.spc.consumer.model.Product">SELECT id, name, price FROM product WHERE id = #{id}</select><select id="findAll" resultType="org.example.spc.consumer.model.Product">SELECT id, name, price FROM product</select><insert id="insert" parameterType="org.example.spc.consumer.model.Product">INSERT into product (id, name, price)VALUES (#{id}, #{name}, #{price})</insert>
</mapper>

ProductServiceImpl.java

@Service
public class ProductServiceImpl implements ProductService {private static final Logger logger = LoggerFactory.getLogger(ProductServiceImpl.class);@Autowiredprivate ProductMapper productMapper;@Overridepublic Product getProduct(int id) {logger.info("Find product by id : {}", id);return productMapper.findById(id);}
...
}

ProductController.java

@RestController
@RequestMapping("/product")
public class ProductController {private static final Logger LOGGER = LoggerFactory.getLogger(ProductController.class);@Autowiredprivate ProductService productService;@GetMapping("/{id}")@ResponseBodypublic Product find(@PathVariable("id") int id) {return productService.getProduct(id);}@GetMapping("/all")@ResponseBodypublic List<Product> findAll() {return productService.findAll();}@PostMapping("/add")public ResponseEntity addProduct(@RequestBody Product product) {return productService.addProduct(product);}}

feignclientdemo重要源码和配置：

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><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.6.6</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>org.example</groupId><artifactId>feignclientdemo</artifactId><version>1.0-SNAPSHOT</version><name>feignclientdemo</name><!-- FIXME change it to the project's website --><url>http://www.example.com</url><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><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>2021.0.3</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2.2.7.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId><version>3.1.3</version></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId><exclusions><exclusion><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-ribbon</artifactId></exclusion></exclusions></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-loadbalancer</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-validation</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build>
</project>

application.yml

server:port: 18728spring:application:name: feignclientdemocloud:nacos:discovery:server-addr: 127.0.0.1:8848namespace: b2b3c55a-abe5-47a4-a47e-03c57138d1d7

FeignClientDemoApp.java (入口类)

package org.example;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;@EnableFeignClients
@EnableDiscoveryClient(autoRegister = false)
@SpringBootApplication
public class FeignClientDemoApp
{public static void main( String[] args ){SpringApplication.run(FeignClientDemoApp.class, args);}@Bean@LoadBalancedpublic RestTemplate restTemplate() {return new RestTemplate();}
}

ProductService.java

package org.example.spc.consumer.service;import org.example.spc.consumer.model.Product;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;import java.util.List;@FeignClient("feigndemo")	// 括号中的值必须和provider注册的应用名一致
public interface ProductService {@GetMapping("/product/{id}")Product getProduct(@PathVariable int id);@GetMapping("/product/all")List<Product> findAll();@PostMapping("/product/add")ResponseEntity addProduct(@RequestBody Product product);}

ProductController.java

package org.example.spc.consumer.controller;import org.example.spc.consumer.model.Product;
import org.example.spc.consumer.service.ProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;import java.util.List;/*** 功能描述** @auhtor sunlei* @since 2024/7/28 17:38*/
@RestController
@RequestMapping("/product")
public class ProductController {private ProductService productService;@Autowiredpublic ProductController(ProductService productService) {this.productService = productService;}@GetMapping("/{id}")@ResponseBodypublic Product find(@PathVariable("id") int id) {return productService.getProduct(id);}@GetMapping("/all")@ResponseBodypublic List<Product> findAll() {return productService.findAll();}@PostMapping("/add")public ResponseEntity addProduct(@RequestBody Product product) {return productService.addProduct(product);}}

部署好后的调用结果如下：

GET请求：

POST请求：(用ApiFox调用)

http://www.mnyf.cn/news/33214.html

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