springcloud微服务父子项目（一）

1.新建父工程



2.点击File - settings - Build Tools - Maven ，这里的Maven路径选择自己本地的maven路径。

3.Editor - File Types，末尾加上“.idea;.iml;”，设置隐藏impl文件和.idea文件；
4.File - settings - Build - Complier - Java Complier ,需要将编译版本设置为1.8；

5.pom.xml加入依赖

    4.0.0

    com.elio.springcloud
    springcloudtest
    1.0-SNAPSHOT

    
    
        UTF-8
        4.12
        1.18.10
        1.2.17
        5.1.47
        1.1.16
        1.3.0
    

    
    
        
            
                org.apache.maven.plugins
                maven-project-info-reports-plugin
                3.0.0
            
            
            
                org.springframework.boot
                spring-boot-dependencies
                2.2.2.RELEASE
                pom
                import
            
            
            
                org.springframework.cloud
                spring-cloud-dependencies
                Hoxton.SR1
                pom
                import
            
            
            
                com.alibaba.cloud
                spring-cloud-alibaba-dependencies
                2.1.0.RELEASE
                pom
                import
            
            
            
                mysql
                mysql-connector-java
                ${mysql.version}
                runtime
            
            
            
                com.alibaba
                druid
                ${druid.version}
            
            
            
                org.mybatis.spring.boot
                mybatis-spring-boot-starter
                ${mybatis.spring.boot.version}
            
            
            
                junit
                junit
                ${junit.version}
            
            
            
                log4j
                log4j
                ${log4j.version}
            
        
    
    
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    true
                    true
                
            
        
    

6.创建子工程



点击finish后，我们可以看到构建成功的子项目

7.添加商品服务提供者的pom.xml配置

    
        springcloud
        com.sdltxjt
        1.0-SNAPSHOT
    
    4.0.0

    springcloud-product-provider-8100
    
        




        




        




        
        
            org.springframework.boot
            spring-boot-starter-web
        
        




        
        
            org.springframework.boot
            spring-boot-starter-actuator
        
        
        
            mysql
            mysql-connector-java
        
        
        
            com.alibaba
            druid
        
        
        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
        
        
        
            org.springframework.boot
            spring-boot-devtools
        
        
        
            org.projectlombok
            lombok
        
        





    

    
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    true
                    true
                
            
        
    

8.右键商品服务提供者项目的resources文件夹，新增application.yml配置文件，新增之后application.yml前面有个绿色的小叶子标识

server:
  port: 8100 #端口号

spring:
  application:
    name: springcloud-product-provider-8100
  datasource:
    url: jdbc:mysql://192.168.9.202:18080/springcloud?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
    driverClassName: com.mysql.jdbc.Driver
    username: root
    password: 123***

mybatis:
  mapper-locations: classpath:mapping/*mapper.xml # Mybatis 映射文件位置
  type-aliases-package: com.sdltxjt.springcloud.entity  # 表对应的实体类包

9.右键java文件夹新增，实体类Product，这将是我们接下来的product表对应的实体类

package com.sdltxjt.springcloud.entity;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

@NoArgsConstructor
@AllArgsConstructor
@Setter
@Getter
public class Product {

    private Long id; //自增id
    private String name;// 产品名称
    private int stock;// 库存

}

10.新增dao层接口ProductMapper

package com.sdltxjt.springcloud.dao;

import com.sdltxjt.springcloud.entity.Product ;
import org.apache.ibatis.annotations.Param;
import org.springframework.stereotype.Repository;

@Repository
public interface ProductMapper {
    
    public Product selectById(@Param("id") Long id);


    
    public int deleteById(@Param("id") Long id);

    
    public int updateById(@Param("id") Long id, @Param("name") String name);

    
    public int insertOne(Product product);
}

11.右键resources文件，新增mappingproduct_mapper.xml文件，这个是product表对应的sql文件，包含简单的增删改查

    
        
        
        
    

    
    
        select * from product where id = #{id}
    

    
    
        delete from product where id = #{id}
    

    
    
        update product set name = #{name} where id = #{id}
    

    
    
        insert into product(name, stock) values (#{name}, #{stock})
    



 
12.新增ProductService.java文件
 
package com.sdltxjt.springcloud.service;


import com.sdltxjt.springcloud.entity.Product;
import org.apache.ibatis.annotations.Param;


public interface ProductService {

    
    public Product selectById(Long id);


    
    public int deleteById(Long id);

    
    public int updateById(Long id, String name);

    
    public int insertOne(Product product);

}

 
13.新增ProductServiceImpl.java 类
 
package com.sdltxjt.springcloud.service.impl;


import com.sdltxjt.springcloud.dao.ProductMapper;
import com.sdltxjt.springcloud.entity.Product;
import com.sdltxjt.springcloud.service.ProductService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service
public class ProductServiceImpl implements ProductService {

    @Resource
    private ProductMapper productMapper;

    @Override
    public Product selectById(Long id) {
        return productMapper.selectById(id);
    }

    @Override
    public int deleteById(Long id) {
        return productMapper.deleteById(id);
    }

    @Override
    public int updateById(Long id, String name) {
        return productMapper.updateById(id, name);
    }

    @Override
    public int insertOne(Product product) {
        return productMapper.insertOne(product);
    }
}

 
14.新增Result.java
 
package com.sdltxjt.springcloud.dto;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

@AllArgsConstructor
@NoArgsConstructor
@Setter
@Getter
public class Result {

    private int code;
    private String message;
    private Object result;
}

 
15.新增ProductProviderController.java
 
package com.sdltxjt.springcloud.controller;


import com.sdltxjt.springcloud.dto.Result;
import com.sdltxjt.springcloud.entity.Product;
import com.sdltxjt.springcloud.service.ProductService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;

@RestController
@Slf4j
@RequestMapping("/")
public class ProductProviderController {

    @Resource
    private ProductService productService;

    
    @GetMapping("product/provider/get/{id}")
    public Result selectById(@PathVariable("id") Long id){
        return new Result(200, "查询成功", productService.selectById(id));
    }

    
    @GetMapping("product/provider/delete/{id}")
    public Result deleteById(@PathVariable("id") Long id){
        return new Result(200, "删除成功", productService.deleteById(id));
    }

    
    @PostMapping("product/provider/update")
    public Result updateById(@RequestBody Product product){
        return new Result(200, "修改成功", productService.updateById(product.getId(), product.getName()));

    }

    
    @PutMapping( "product/provider/add")
    public Result insertById(@RequestBody Product product){
        return new Result(200, "修改成功", productService.insertOne(product));
    }
}


 
16.右键java文件夹，新增主启动类ProductProvider8100
 ProductProvider8100内容如下，加上@SpringBootApplication和MapperScan注解
 
package com.sdltxjt.springcloud;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.sdltxjt.springcloud.dao")
public class ProductProvider8100 {

    public static void main(String[] args){
        SpringApplication.run(ProductProvider8100.class, args);
    }
}
 
17.创建表结构
 
DROP TABLE IF EXISTS `product`;
CREATE TABLE `product` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) DEFAULT NULL,
  `stock` int(10) unsigned DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
 
18.至此微服务的商品提供者我们已经创建成功，接下来就是测试该提供者了,启动类ProductProvider8100上右键Run
 19.浏览器地址输入 http://localhost:8100/product/provider/get/1
					
										


					

						
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原文地址: http://outofmemory.cn/zaji/5708371.html
					
				
								

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