html5 微网站 源码,网络黄页推广软件,wordpress如何开启阿里云cdn,wordpress显示慢前言#xff1a;在上节我们新建了一个SpringCloud父工程#xff0c;这一节主要是构建微服务工程#xff0c;通过实现订单模块和支付模块来熟悉微服务的概念和构建过程。 1、在父工程下新建模块 2、选择模块的项目类型为Maven并选择模块要使用的JDK版本 3、填写子模块的名称在上节我们新建了一个SpringCloud父工程这一节主要是构建微服务工程通过实现订单模块和支付模块来熟悉微服务的概念和构建过程。 1、在父工程下新建模块 2、选择模块的项目类型为Maven并选择模块要使用的JDK版本 3、填写子模块的名称然后点完成即可完成创建 4、进入父工程的pom.xml文件里查看变化可以发现多出了一个modules这表明provider-payment8081这个模块成为了父工程spring-cloud01的子模块了 5、修改provider-payment8001子模块的pom.xml文件然后reolad一下下载依赖
例
?xml version1.0 encodingUTF-8?
project xmlnshttp://maven.apache.org/POM/4.0.0xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsdparentartifactIdspringcloud01/artifactIdgroupIdcom.ken.springcloud/groupIdversion1.0-SNAPSHOT/version/parentmodelVersion4.0.0/modelVersionartifactIdprovider-payment8001/artifactIddependencies!--以下依赖都没写版本号没写版本号的情况下会引用父项目的版本--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependency!--监控--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-actuator/artifactId/dependency!--Mybatis和SpringBoot的整合--dependencygroupIdorg.mybatis.spring.boot/groupIdartifactIdmybatis-spring-boot-starter/artifactId/dependencydependencygroupIdcom.alibaba/groupIdartifactIddruid/artifactId/dependency!--mysql-connector-java--dependencygroupIdmysql/groupIdartifactIdmysql-connector-java/artifactId/dependency!--jdbc--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-jdbc/artifactId/dependency!--热部署--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-devtools/artifactIdscoperuntime/scopeoptionaltrue/optional/dependencydependencygroupIdorg.projectlombok/groupIdartifactIdlombok/artifactIdoptionaltrue/optional/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-test/artifactIdscopetest/scope/dependency/dependencies/project 子模块里的依赖都没写版本号没写版本号的情况下会继承父项目的版本
例 父项目的mybatis版本为2.2.0 子模块的mybatis版本没有写这时候子模块的版本为2.2.0继承了父项目mybatis的版本 6、为子模块添加名为application的yml配置文件注yml是官方推荐的配置文件格式最好使用yml文件而不是properties文件 效果图 如果application.yml不是绿色的而是红色的可以尝试install当前Maven工程如果还不行可以尝试清除Idea的缓存 7、编写application.yml文件配置
#服务端口号
server:port: 8001#服务名称
spring:application:name: cloud-payment-servicedatasource:type: com.alibaba.druid.pool.DruidDataSource #当前数据源操作类型driver-class-name: com.mysql.cj.jdbc.Driver #mysql驱动包我本地的mysql版本是8版本是5的要写成com.mysql.jdbc.Driverurl: jdbc:mysql://localhost:3306/cloud?useUnicodetruecharacterEncodingUTF-8useSSLfalseserverTimezoneGMT%2B8 #mysql连接路径记得把cloud这个数据库名改成自己的或者新建名为cloud的数据库username: rootpassword: 123456#mybatis配置
mybatis:mapper-locations: classpath:mapper/*.xml #扫描类路径下的mapper文件夹下所有的.xml配置文件type-aliases-package: com.ken.springcloud.entities #该包下的所有Entity类都取默认别名效果图 8、为子模块新建一个主启动类类名输入com.ken.springcloud.PaymentMain然后创建即可 效果图 9、编写主启动类
package com.ken.springcloud;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;SpringBootApplication
public class PaymentMain {public static void main(String[] args) {SpringApplication.run(PaymentMain.class, args);}
}
效果图 10、新建数据库和表
数据库名为cloud字符集为utf8mb4排序规则为utf8mb4_general_ci表名为payment
CREATE TABLE payment (id bigint NOT NULL AUTO_INCREMENT,serial varchar(200) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,PRIMARY KEY (id) USING BTREE
) ENGINE InnoDB AUTO_INCREMENT 1 CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci ROW_FORMAT DYNAMIC; 11、新建包entities和实体类Payment在类名输入entities.Payment然后创建即可 效果图 12、编写Payment实体类的内容
package com.ken.springcloud.entities;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;import java.io.Serializable;Data
AllArgsConstructor
NoArgsConstructor
public class Payment implements Serializable {private Long id;private String serial;} 13、新建返回给前端的结果集CommonResult类 效果图 14、编写CommonResult实体类的内容
package com.ken.springcloud.entities;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;Data
AllArgsConstructor
NoArgsConstructor
public class CommonResultT {private Integer code;private String message;private T data;public CommonResult(Integer code,String message) {this(code,message,null);}}15、新建包dao和接口类PaymentDao在类名输入dao.PaymentDao然后创建即可 效果图 16、编写PaymentDao接口类的内容
package com.ken.springcloud.dao;import com.ken.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;Mapper
public interface PaymentDao {int insert(Payment payment);Payment getPaymentById(Param(id) Long id);} 17、在resources目录下新建mapper目录用于存储mapper文件 效果图 18、在mapper目录下新建PaymentMapper.xml文件 效果图 19、编写PaymentMapper.xml的内容
?xml version1.0 encodingUTF-8?
!DOCTYPE mapper PUBLIC -//mybatis.org//DTD Mapper 3.0//EN http://mybatis.org/dtd/mybatis-3-mapper.dtd
mapper namespacecom.ken.springcloud.dao.PaymentDaoresultMap idBaseResultMap typecom.ken.springcloud.entities.Paymentid columnid propertyid jdbcTypeBIGINT/id columnserial propertyserial jdbcTypeVARCHAR//resultMap!--useGeneratedKeys设置为true时表示如果插入的表id以自增列为主键则允许JDBC支持自动生成主键并可将自动生成的主键id返回。--insert idinsert parameterTypePayment useGeneratedKeystrue keyPropertyidinsert into payment(serial) values (#{serial});/insertselect idgetPaymentById parameterTypeLong resultMapBaseResultMapselect * from payment where id #{id};/select/mapper 20、新建包service和接口类PaymentService在类名输入service.PaymentService然后创建即可 效果图 21、编写PaymentService接口类的内容
package com.ken.springcloud.service;import com.ken.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Param;public interface PaymentService {int insert(Payment payment);Payment getPaymentById(Param(id) Long id);} 22、在service包下新建impl包和接口实现类PaymentServiceImpl在类名输入impl.PaymentServiceImpl然后创建即可 效果图 23、编写PaymentServiceImpl实现类的内容
package com.ken.springcloud.service.impl;import com.ken.springcloud.dao.PaymentDao;
import com.ken.springcloud.entities.Payment;
import com.ken.springcloud.service.PaymentService;
import org.springframework.stereotype.Service;import javax.annotation.Resource;Service
public class PaymentServiceImpl implements PaymentService {Resourceprivate PaymentDao paymentDao;Overridepublic int insert(Payment payment) {return paymentDao.insert(payment);}Overridepublic Payment getPaymentById(Long id) {return paymentDao.getPaymentById(id);}} 24、在com.ken.springcloud包下新建controller包和控制类在类名输入controller.PaymentController然后创建即可
效果图 25、编写PaymentController控制类的内容
package com.ken.springcloud.controller;import com.ken.springcloud.entities.CommonResult;
import com.ken.springcloud.entities.Payment;
import com.ken.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
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.RestController;import javax.annotation.Resource;RestController
Slf4j
public class PaymentController {Resourceprivate PaymentService paymentService;PostMapping(/payment/insert)public CommonResult insert(Payment payment) {int result paymentService.insert(payment);log.info(插入结果{},result);if(result 0) {return new CommonResult(200,插入数据库成功,result);}else {return new CommonResult(500,插入数据库失败,result);}}GetMapping(/payment/get/{id})public CommonResult insert(PathVariable(id) Long id) {Payment payment paymentService.getPaymentById(id);log.info(查询结果{},payment);if(payment ! null) {return new CommonResult(200,查询成功,payment);}else {return new CommonResult(500,没有对应的数据查询失败查询id id,payment);}}} 26、运行项目并用工具测试接口查看项目是否运行成功我这里测试接口用的工具的postman
(1)测试新增
在地址栏输入http://localhost:8001/payment/insert?serialken并点击send调用接口,可以看到数据插入成功
效果图 (2)测试查询
在地址栏输入http://localhost:8001/payment/get/1并点击send调用接口可以看到数据返回成功
效果图 27、在父工程下再次新建模块 28、选择新模块的项目类型为Maven并选择模块要使用的JDK版本 29、填写子模块的名称然后点完成即可完成创建
效果图 30、修改consumer-order80子模块的pom.xml文件然后reolad一下下载依赖
例
?xml version1.0 encodingUTF-8?
project xmlnshttp://maven.apache.org/POM/4.0.0xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsdparentartifactIdspringcloud01/artifactIdgroupIdcom.ken.springcloud/groupIdversion1.0-SNAPSHOT/version/parentmodelVersion4.0.0/modelVersionartifactIdconsumer-order80/artifactIddependencies!--以下依赖都没写版本号没写版本号的情况下会引用父项目的版本--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependency!--监控--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-actuator/artifactId/dependency!--热部署--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-devtools/artifactIdscoperuntime/scopeoptionaltrue/optional/dependency!--lombok插件--dependencygroupIdorg.projectlombok/groupIdartifactIdlombok/artifactIdoptionaltrue/optional/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-test/artifactIdscopetest/scope/dependency/dependencies/project 31、为子模块添加名为application的yml配置文件注yml是官方推荐的配置文件格式最好使用yml文件而不是properties文件 效果图 如果application.yml不是绿色的而是红色的可以尝试install当前Maven工程如果还不行可以尝试清除Idea的缓存 32、编写application.yml文件配置
server:port: 80 #用80端口是因为浏览器网页服务默认的端口号都是8080端口是为HTTP开放的
效果图 33、为子模块新建一个主启动类类名输入com.ken.springcloud.OrderMain然后创建即可 效果图 34、编写主启动类
package com.ken.springcloud;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;SpringBootApplication
public class OrderMain {public static void main(String[] args) {SpringApplication.run(OrderMain.class,args);}}
效果图 35、新建包entities和实体类Payment在类名输入entities.Payment然后创建即可 效果图 36、在com.ken.springcloud包下新建config包和ApplicationContextConfig类在类名输入config.ApplicationContextConfig然后创建即可 效果图 37、编写ApplicationContextConfig类
package com.ken.springcloud.config;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;Configuration
public class ApplicationContextConfig {/*** RestTemplate提供了多种便捷访问远程Http服务的方法是一种简单便捷的访问restful服务模板类是Spring提供的用于访问Rest服务的客户端模板工具集*/Beanpublic RestTemplate getRestTemplate() {return new RestTemplate();}} 38、在com.ken.springcloud包下新建controller包和控制类在类名输入controller.OrderController然后创建即可
效果图 39、编写OrderController控制类的内容
package com.ken.springcloud.controller;import com.ken.springcloud.entities.CommonResult;
import com.ken.springcloud.entities.Payment;
import lombok.extern.slf4j.Slf4j;
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.RestController;
import org.springframework.web.client.RestTemplate;import javax.annotation.Resource;RestController
Slf4j
public class OrderController {public static final String PAYMENT_URL http://localhost:8001;Resourceprivate RestTemplate restTemplate;PostMapping(/consumer/insert)public CommonResultPayment insert(Payment payment) {return restTemplate.postForObject(PAYMENT_URL /payment/insert,payment,CommonResult.class);}GetMapping(/consumer/get/{id})public CommonResultPayment getPayment(PathVariable(id) Long id) {return restTemplate.getForObject(PAYMENT_URL /payment/get id,CommonResult.class);}} 40、修改PaymenController控制类的内容在insert方法的参数前多加了RequestBody之前测试时是没有加的没有加的情况下用RestTemplate调用PaymenController类的insert接口insert接口的入参的值都为null
package com.ken.springcloud.controller;import com.ken.springcloud.entities.CommonResult;
import com.ken.springcloud.entities.Payment;
import com.ken.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;import javax.annotation.Resource;RestController
Slf4j
public class PaymentController {Resourceprivate PaymentService paymentService;PostMapping(/payment/insert)public CommonResult insert(RequestBody Payment payment) {int result paymentService.insert(payment);log.info(插入结果{},result);if(result 0) {return new CommonResult(200,插入数据库成功,result);}else {return new CommonResult(500,插入数据库失败,result);}}GetMapping(/payment/get/{id})public CommonResult insert(PathVariable(id) Long id) {Payment payment paymentService.getPaymentById(id);log.info(查询结果{},payment);if(payment ! null) {return new CommonResult(200,查询成功,payment);}else {return new CommonResult(500,没有对应的数据查询失败查询id id,payment);}}} 41、分别启动OrderMain启动类和PaymentMain启动类然后用工具测试接口我这里测试接口用的工具的postman
(1)启动项目 (2)测试新增
在地址栏输入http://localhost:80/consumer/insert?serialken2并点击send调用接口,可以看到数据插入成功
效果图 (3)测试查询
在地址栏输入http://localhost:80/consumer/get/2并点击send调用接口可以看到数据返回成功
效果图 结语
至此我们完成了微服务工程的构建并使用RestTemplate来进行服务间的调用
