IDEA创建springboot项目（接口+数据库）

喜欢ヅ旅行 2023-07-24 13:06 9阅读 0赞

1.new project -》spring Initializr-》jdk版本，点击next

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2.设置项目属性，点击next

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3.选择项目需要的依赖（由于项目是springboot+mybatis的Java后台项目依赖如下），点击next

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4.选择项目代码存放路径

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6.创建对应文件和业务代码

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6.1设置配置文件（application.yml）

spring:
      profiles:
        active: dev

6.2配置启动端口、数据库信息、mybatis映射、日志（application-dev.yml）

server:
      port: 8082
    
    spring:
      datasource:
        username: root
        password: XX
        url: jdbc:mysql://localhost:3306/project_manage?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
        driver-class-name: com.mysql.jdbc.Driver
    
    mybatis:
      mapper-locations: classpath:mapper/*Mapper.xml
      type-aliases-package: com.anran.example.model
    
    logging:
      file: /usr/log/example.log
      level:
        root: INFO
        com.anran.projectmanage.mapper: DEBUG

6.3数据库sql

CREATE TABLE `test` (
      `id` int(11) NOT NULL AUTO_INCREMENT,
      `content` varchar(800) DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

6.4 下面是业务代码

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 https://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>2.2.6.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.anran</groupId>
        <artifactId>example</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>example</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <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>2.1.2</version>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
                <exclusions>
                    <exclusion>
                        <groupId>org.junit.vintage</groupId>
                        <artifactId>junit-vintage-engine</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

ExampleApplication.java (服务启动引导类)

package com.anran.example;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.web.servlet.ServletComponentScan;
    
    @SpringBootApplication
    @ServletComponentScan
    public class ExampleApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(ExampleApplication.class, args);
    	}
    
    }

TestMapper.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="com.anran.example.mapper.TestMapper">
        <select id="get" parameterType="int" resultType="com.anran.example.model.TestModel">
            select
              id, content
            from
              test
            where
              id = #{id};
        </select>
    </mapper>

TestModel.java

package com.anran.example.model;
    
    /**
     * 测试类
     */
    public class TestModel {
        /**
         * id
         */
        int id;
    
        /**
         * 内容
         */
        String content;
    
        public int getId() {
            return id;
        }
    
        public void setId(int id) {
            this.id = id;
        }
    
        public String getContent() {
            return content;
        }
    
        public void setContent(String content) {
            this.content = content;
        }
    }

TestMapper.java

package com.anran.example.mapper;
    
    
    import com.anran.example.model.TestModel;
    import org.apache.ibatis.annotations.Mapper;
    
    @Mapper
    public interface TestMapper {
    
        TestModel get(int id);
    }

TestService.java

package com.anran.example.service;
    
    import com.anran.example.mapper.TestMapper;
    import com.anran.example.model.TestModel;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    @Service
    public class TestService {
        @Autowired
        private TestMapper testMapper;
    
        public TestModel get(int id) {
            return testMapper.get(id);
        }
    }

TestController.java

package com.anran.example.controller;
    
    import com.anran.example.model.TestModel;
    import com.anran.example.service.TestService;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.ResponseEntity;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    @RequestMapping("/testController")
    public class TestController {
    
        private static final Logger log = LoggerFactory.getLogger(TestController.class);
    
        @Autowired
        TestService testService;
        @RequestMapping("/get.action")
        public TestModel get(@RequestParam("id") int id) {
            TestModel testModel = testService.get(id);
            return testModel;
        }
    
        @RequestMapping("/test.action")
        public ResponseEntity<String> test() {
            return new ResponseEntity<String>("hello", HttpStatus.OK);
        }
    }

7.启动服务

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8.测试接口

[http://localhost:8082/testController/get.action?id=1][http_localhost_8082_testController_get.action_id_1]

![20200411212525337.png][]

9.IDEA打包springboot服务

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI2MTU0MDc3_size_16_color_FFFFFF_t_70 9][]

10.windows启动服务

java -jar example-0.0.1-SNAPSHOT.jar

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11.查询接口

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[http_localhost_8082_testController_get.action_id_1]: http://localhost:8082/testController/get.action?id=1
[20200411212525337.png]: /images/20230528/7346fd8a2bc74953b7eca956b930ca68.png
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