建立基本的springboot项目

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pom依赖

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <groupId>com.atguigu</groupId>
  6.     <artifactId>payment-demo</artifactId>
  7.     <version>0.0.1-SNAPSHOT</version>
  8.     <name>payment-demo</name>
  9.     <description>Demo project for Spring Boot</description>
  11.     <properties>
  12.         <java.version>1.8</java.version>
  13.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  14.         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  15.         <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
  16.     </properties>
  18.     <dependencies>
  19.         <!--web-->
  20.         <dependency>
  21.             <groupId>org.springframework.boot</groupId>
  22.             <artifactId>spring-boot-starter-web</artifactId>
  23.         </dependency>
  25.         <!--Swagger-->
  26.         <dependency>
  27.             <groupId>io.springfox</groupId>
  28.             <artifactId>springfox-swagger2</artifactId>
  29.             <version>2.7.0</version>
  30.         </dependency>
  31.         <!--Swagger ui-->
  32.         <dependency>
  33.             <groupId>io.springfox</groupId>
  34.             <artifactId>springfox-swagger-ui</artifactId>
  35.             <version>2.7.0</version>
  36.         </dependency>
  38.         <!--lombok-->
  39.         <dependency>
  40.             <groupId>org.projectlombok</groupId>
  41.             <artifactId>lombok</artifactId>
  42.         </dependency>
  44.         <!--mysql 驱动-->
  45.         <dependency>
  46.             <groupId>mysql</groupId>
  47.             <artifactId>mysql-connector-java</artifactId>
  48.         </dependency>
  50.         <!--MyBatis-Plus：是MyBatis的增强-->
  51.         <dependency>
  52.             <groupId>com.baomidou</groupId>
  53.             <artifactId>mybatis-plus-boot-starter</artifactId>
  54.             <version>3.3.1</version>
  55.         </dependency>
  57.         <!-- 生成自定义配置的元数据信息 -->
  58.         <dependency>
  59.             <groupId>org.springframework.boot</groupId>
  60.             <artifactId>spring-boot-configuration-processor</artifactId>
  61.             <optional>true</optional>
  62.         </dependency>
  64.         <!--微信支付SDK-->
  65.         <dependency>
  66.             <groupId>com.github.wechatpay-apiv3</groupId>
  67.             <artifactId>wechatpay-apache-httpclient</artifactId>
  68.             <version>0.3.0</version>
  69.         </dependency>
  71.         <!--json处理器-->
  72.         <dependency>
  73.             <groupId>com.google.code.gson</groupId>
  74.             <artifactId>gson</artifactId>
  75.         </dependency>
  77.         <!--微信支付 APIv2 SDK-->
  78.         <dependency>
  79.             <groupId>com.github.wxpay</groupId>
  80.             <artifactId>wxpay-sdk</artifactId>
  81.             <version>0.0.3</version>
  82.         </dependency>
  84.         <dependency>
  85.             <groupId>org.springframework.boot</groupId>
  86.             <artifactId>spring-boot-starter-test</artifactId>
  87.             <scope>test</scope>
  88.             <exclusions>
  89.                 <exclusion>
  90.                     <groupId>org.junit.vintage</groupId>
  91.                     <artifactId>junit-vintage-engine</artifactId>
  92.                 </exclusion>
  93.             </exclusions>
  94.         </dependency>
  95.     </dependencies>
  97.     <dependencyManagement>
  98.         <dependencies>
  99.             <dependency>
  100.                 <groupId>org.springframework.boot</groupId>
  101.                 <artifactId>spring-boot-dependencies</artifactId>
  102.                 <version>${spring-boot.version}</version>
  103.                 <type>pom</type>
  104.                 <scope>import</scope>
  105.             </dependency>
  106.         </dependencies>
  107.     </dependencyManagement>
  109.     <build>
  110.         <!-- 项目打包时会将java目录中的*.xml文件也进行打包 -->
  111.         <resources>
  112.             <resource>
  113.                 <directory>src/main/java</directory>
  114.                 <includes>
  115.                     <include>**/*.xml</include>
  116.                 </includes>
  117.                 <filtering>false</filtering>
  118.             </resource>
  119.         </resources>
  121.         <plugins>
  122.             <plugin>
  123.                 <groupId>org.apache.maven.plugins</groupId>
  124.                 <artifactId>maven-compiler-plugin</artifactId>
  125.                 <version>3.8.1</version>
  126.                 <configuration>
  127.                     <source>1.8</source>
  128.                     <target>1.8</target>
  129.                     <encoding>UTF-8</encoding>
  130.                 </configuration>
  131.             </plugin>
  132.             <plugin>
  133.                 <groupId>org.springframework.boot</groupId>
  134.                 <artifactId>spring-boot-maven-plugin</artifactId>
  135.                 <version>2.3.7.RELEASE</version>
  136.                 <configuration>
  137.                     <mainClass>com.atguigu.paymentdemo.PaymentDemoApplication</mainClass>
  138.                 </configuration>
  139.                 <executions>
  140.                     <execution>
  141.                         <id>repackage</id>
  142.                         <goals>
  143.                             <goal>repackage</goal>
  144.                         </goals>
  145.                     </execution>
  146.                 </executions>
  147.             </plugin>
  148.         </plugins>
  149.     </build>
  151. </project>

yml配置文件

  1. server:
  2.   port: 8090 #服务端口
  4. spring:
  5.   application:
  6.     name: payment-demo #应用的名字
  8.   jackson:
  9.     date-format: yyyy-MM-dd HH:mm:ss
  10.     time-zone: GMT+8
  12.   datasource:
  13.     driver-class-name: com.mysql.cj.jdbc.Driver
  14.     url: jdbc:mysql://localhost:3306/payment_demo?serverTimezone=GMT%2B8&characterEncoding=utf-8
  15.     username: root
  16.     password: 123456
  18. mybatis-plus:
  19.   configuration: #sql日志
  20.     log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
  21.   mapper-locations: classpath:com/atguigu/paymentdemo/mapper/xml/*.xml
  23. logging:
  24.   level:
  25.     root: info

swagger配置文件

  1. package com.btlord.springboot_demo.config;
  3. import org.springframework.context.annotation.Bean;
  4. import org.springframework.context.annotation.Configuration;
  5. import springfox.documentation.builders.ApiInfoBuilder;
  6. import springfox.documentation.spi.DocumentationType;
  7. import springfox.documentation.spring.web.plugins.Docket;
  8. import springfox.documentation.swagger2.annotations.EnableSwagger2;
  10. @Configuration
  11. @EnableSwagger2
  12. public class Swagger2Config {
  14.     @Bean
  15.     public Docket docket(){
  17.         return new Docket(DocumentationType.SWAGGER_2)
  18.                 .apiInfo(new ApiInfoBuilder().title("案例接口文档").build());
  19.     }
  20. }
  1. package com.atguigu.paymentdemo.controller;
  3. import com.atguigu.paymentdemo.entity.Product;
  4. import com.atguigu.paymentdemo.service.ProductService;
  5. import com.atguigu.paymentdemo.vo.R;
  6. import io.swagger.annotations.Api;
  7. import io.swagger.annotations.ApiOperation;
  8. import org.springframework.web.bind.annotation.CrossOrigin;
  9. import org.springframework.web.bind.annotation.GetMapping;
  10. import org.springframework.web.bind.annotation.RequestMapping;
  11. import org.springframework.web.bind.annotation.RestController;
  13. import javax.annotation.Resource;
  14. import java.util.Date;
  15. import java.util.List;
  17. @CrossOrigin //开放前端的跨域访问
  18. @Api(tags = "商品管理")
  19. @RestController
  20. @RequestMapping("/api/product")
  21. public class ProductController {
  23.     @Resource
  24.     private ProductService productService;
  26.     @ApiOperation("测试接口")
  27.     @GetMapping("/test")
  28.     public R test(){
  30.         return R.ok().data("message", "hello").data("now", new Date());
  31.     }
  33.     @ApiOperation("商品列表")
  34.     @GetMapping("/list")
  35.     public R list(){
  37.         List<Product> list = productService.list();
  38.         return R.ok().data("productList", list);
  39.     }
  41. }

统一结果VO类

  1. package com.atguigu.paymentdemo.vo;
  2. import lombok.Data;
  3. import lombok.experimental.Accessors;
  5. import java.util.HashMap;
  6. import java.util.Map;
  8. @Data
  9. @Accessors(chain = true)
  10. public class R {
  12.     private Integer code; //响应码
  13.     private String message; //响应消息
  14.     private Map<String, Object> data = new HashMap<>();
  16.     public static R ok(){
  17.         R r = new R();
  18.         r.setCode(0);
  19.         r.setMessage("成功");
  20.         return r;
  21.     }
  23.     public static R error(){
  24.         R r = new R();
  25.         r.setCode(-1);
  26.         r.setMessage("失败");
  27.         return r;
  28.     }
  30.     public R data(String key, Object value){
  31.         this.data.put(key, value);
  32.         return this;
  33.     }
  35. }
  38. // 以下是使用方法
  40. package com.atguigu.paymentdemo.controller;
  41. import com.atguigu.paymentdemo.entity.Product;
  42. import com.atguigu.paymentdemo.service.ProductService;
  43. import com.atguigu.paymentdemo.vo.R;
  44. import io.swagger.annotations.Api;
  45. import io.swagger.annotations.ApiOperation;
  46. import org.springframework.web.bind.annotation.CrossOrigin;
  47. import org.springframework.web.bind.annotation.GetMapping;
  48. import org.springframework.web.bind.annotation.RequestMapping;
  49. import org.springframework.web.bind.annotation.RestController;
  51. import javax.annotation.Resource;
  52. import java.util.Date;
  53. import java.util.List;
  55. @CrossOrigin //开放前端的跨域访问
  56. @Api(tags = "商品管理")
  57. @RestController
  58. @RequestMapping("/api/product")
  59. public class ProductController {
  61.     @Resource
  62.     private ProductService productService;
  64.     @ApiOperation("测试接口")
  65.     @GetMapping("/test")
  66.     public R test(){
  68.         return R.ok().data("message", "hello").data("now", new Date());
  69.     }
  71.     @ApiOperation("商品列表")
  72.     @GetMapping("/list")
  73.     public R list(){
  75.         List<Product> list = productService.list();
  76.         return R.ok().data("productList", list);
  77.     }
  79. }

json配置

用的google的gson
yml已经配好了时间

数据库

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依赖

  1. <!--mysql驱动 默认版本8-->
  2. <dependency>
  3.     <groupId>mysql</groupId>
  4.     <artifactId>mysql-connector-java</artifactId>
  5. </dependency>
  6. <!--持久层-->
  7. <dependency>
  8.     <groupId>com.baomidou</groupId>
  9.     <artifactId>mybatis-plus-boot-starter</artifactId>
  10.     <version>3.3.1</version>
  11. </dependency>

MyBatis-Plus的配置文件

  1. package com.atguigu.paymentdemo.config;
  3. import org.mybatis.spring.annotation.MapperScan;
  4. import org.springframework.context.annotation.Configuration;
  5. import org.springframework.transaction.annotation.EnableTransactionManagement;
  7. @Configuration
  8. @MapperScan("com.atguigu.paymentdemo.mapper")
  9. @EnableTransactionManagement //启用事务管理
  10. public class MyBatisPlusConfig {
  13. }
  1. package com.atguigu.paymentdemo.entity;
  3. import com.baomidou.mybatisplus.annotation.IdType;
  4. import com.baomidou.mybatisplus.annotation.TableId;
  5. import lombok.Data;
  7. import java.util.Date;
  9. @Data
  10. public class BaseEntity {
  12.     //定义主键策略：跟随数据库的主键自增
  13.     @TableId(value = "id", type = IdType.AUTO)
  14.     private String id; //主键
  16.     private Date createTime;//创建时间
  18.     private Date updateTime;//更新时间
  19. }

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  1. <!-- 项目打包时会将java目录中的*.xml文件也进行打包 -->
  2. <resources>
  3.     <resource>
  4.     <directory>src/main/java</directory>
  5.     <includes>
  6.     <include>**/*.xml</include>
  7.     </includes>
  8.     <filtering>false</filtering>
  9.     </resource>
  10. </resources>
  14. mybatis-plus:
  15. configuration: #sql日志
  16. log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
  17. mapper-locations: classpath:com/atguigu/paymentdemo/mapper/xml/*.xml

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