SpringBoot + Tk.Mybatis + Maven项目搭建（IDEA）

r囧r小猫 2022-05-21 09:08 458阅读 0赞

**一、项目简述**

1. 开发工具：IDEA

2. 框架：SpringBoot +  tk.Mybatis + Maven ，并集成JSP页面。

3. 本项目只是一个简单的demo，里面进行了基础的视图解析测试、JSON数据测试、数据库连接测试、log日志打印以及TK.Mybatis插件自动生成PO类、Mapper接口和对应的xml文件。

**二、项目搭建**

**第一部分：创建项目**

1. File-->New-->Project..-->Spring Initializr-->Next-->Next

2. 此时处于依赖选择这一步，本项目所选择的依赖如下：

Core：Lombok(把属性字段的set和get方法注解化)

Web：Web

SQL：MySQL、Mybatis

3. 选择完依赖后，点击Next-->Finish。此时一个SpringBoot框架的雏形就出来了。

4. 此时搭建的SpringBoot框架，是没有webapp这个模块的，需要手动添加配置，具体步骤在文章的第四部分有叙述。

**第二部分：完善项目配置**

1. 完善pom.xml文件【此处把本项目中所用的依赖提前粘出来】

<?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>
    
    	<groupId>com.iyungu</groupId>
    	<artifactId>phantaci</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>jar</packaging>
    
    	<name>phantaci</name>
    	<description>Demo project for Spring Boot</description>
    
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.0.3.RELEASE</version>
    		<relativePath/> 
    	</parent>
    
    	<properties>
    		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    		<java.version>1.8</java.version>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-actuator</artifactId>
    			<exclusions>
    				<exclusion>
    					<groupId>org.springframework.boot</groupId>
    					<artifactId>spring-boot-starter-logging</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>org.apache.tomcat.embed</groupId>
    			<artifactId>tomcat-embed-jasper</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>jstl</artifactId>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.projectlombok</groupId>
    			<artifactId>lombok</artifactId>
    			<optional>true</optional>
    		</dependency>
    		
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>5.1.6</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>tk.mybatis</groupId>
    			<artifactId>mapper-spring-boot-starter</artifactId>
    			<version>2.0.0</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>log4j</groupId>
    			<artifactId>log4j</artifactId>
    			<version>1.2.12</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.slf4j</groupId>
    			<artifactId>slf4j-log4j12</artifactId>
    			<version>1.7.6</version>
    		</dependency>
    	</dependencies>
    
    	<build>
    		
    		<resources>
    			<resource>
    				<directory>src/main/java</directory>
    				<includes>
    					<include>**/*.xml</include>
    				</includes>
    			</resource>
    		</resources>
    		<plugins>
    			<plugin>
    				<groupId>org.mybatis.generator</groupId>
    				<artifactId>mybatis-generator-maven-plugin</artifactId>
    				<version>1.3.5</version>
    				<configuration>
    					<configurationFile>src/main/resources/generator/generatorConfig.xml</configurationFile>
    					<overwrite>true</overwrite>
    					<verbose>true</verbose>
    				</configuration>
    				<dependencies>
    					<dependency>
    						<groupId>mysql</groupId>
    						<artifactId>mysql-connector-java</artifactId>
    						<version>5.1.44</version>
    					</dependency>
    					<dependency>
    						<groupId>tk.mybatis</groupId>
    						<artifactId>mapper</artifactId>
    						<version>3.5.2</version>
    					</dependency>
    				</dependencies>
    			</plugin>
    		</plugins>
    	</build>
    
    </project>

2. application.properties配置

#数据库配置
    spring.datasource.url=jdbc:mysql://192.168.80.186:3306/bissv100
    spring.datasource.username=root
    spring.datasource.password=123456
    spring.datasource.driver-class-name=com.mysql.jdbc.Driver
    spring.datasource.max-idle=10
    spring.datasource.max-wait=10000
    spring.datasource.min-idle=5
    spring.datasource.initial-size=5
    
    # mybatis配置
    mybatis.typeAliasesPackage=com.iyungu.phantaci.po
    mybatis.mapperLocations=classpath:com/iyungu/phantaci/mapper/*.xml
    
    
    #demo-two项目名
    server.servlet.context-path=/demo-two
    #服务IP
    server.port=8080
    
    #视图解析器
    spring.mvc.view.prefix = /WEB-INF/jsp/
    spring.mvc.view.suffix = .jsp

3. generatorConfig.xml【tk.mybatis插件自动生成】

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE generatorConfiguration
            PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
            "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
    
    <generatorConfiguration>
        <properties resource="application.properties"/>
    
        <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">
            <property name="beginningDelimiter" value="`"/>
            <property name="endingDelimiter" value="`"/>
            <property name="autoDelimitKeywords" value="true"/>
    
            <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
                <property name="mappers" value="com.iyungu.phantaci.util.MyMapper"/>
            </plugin>
    
            <jdbcConnection driverClass="${spring.datasource.driver-class-name}" connectionURL="${spring.datasource.url}" userId="${spring.datasource.username}" password="${spring.datasource.password}">
            </jdbcConnection>
    
            
            <javaModelGenerator targetPackage="com.iyungu.phantaci.po" targetProject="src/main/java"/>
            
            <sqlMapGenerator targetPackage="com.iyungu.phantaci.mapper" targetProject="src/main/java"/>
            
            <javaClientGenerator targetPackage="com.iyungu.phantaci.dao" targetProject="src/main/java" type="XMLMAPPER"/>
    
            <table schema="DEMO-TWO-TEST" tableName="u_user">
                
                <generatedKey column="id" sqlStatement="Mysql" identity="true"/>
                
                
            </table>
        </context>
    </generatorConfiguration>

使用方法：打开Maven Projects-->点击自己的项目-->Plugins-->点击mybatis-generator-->即可生成PO，Mapper接口及对应的XML。

![70][]

**第三部分：部分代码**

1. Controller层

package com.iyungu.phantaci.controller;
    
    import com.iyungu.phantaci.enums.ExceptionCode;
    import com.iyungu.phantaci.po.UUser;
    import com.iyungu.phantaci.service.HelloService;
    import com.iyungu.phantaci.vo.Message;
    import com.iyungu.phantaci.vo.ResponseUtil;
    import com.iyungu.phantaci.vo.test.People;
    import org.apache.log4j.Logger;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    /**
     * @Author: Wang Yarui
     * @Description:
     * @Date: Created in 10:40 2018/6/27
     * @Modified By:
     */
    @Controller
    @RequestMapping("/ph")
    public class Hello {
    
        private static final Logger logger = Logger.getLogger(Hello.class);
    
        @Autowired
        private HelloService helloService;
    
        /**
         * @Author: wangyarui@iyungu.com
         * @Description:测试视图解析器
         * @Date: Created in 10:43 2018/6/27
         * @Param:
         * @Return:
         */
        @GetMapping(value = "/showHello")
        public String showHello(String name) {
            if (name == null) {
                return "test/hello";
            }
            return "test/succ";
        }
    
        /**
         * @Author: wangyarui@iyungu.com
         * @Description:测试JSON数据
         * @Date: Created in 9:38 2018/7/2
         * @Param:
         * @Return:
         */
        @GetMapping(value = "/testJson")
        @ResponseBody
        public Message testJson() {
            People people = new People();
            return ResponseUtil.responseBody(people);
        }
    
        /**
         * @Author: wangyarui@iyungu.com
         * @Description:测试数据库是否正常连接
         * @Date: Created in 9:39 2018/7/2
         * @Param:
         * @Return:
         */
        @GetMapping(value = "/getUserInfoById")
        @ResponseBody
        public Message getUserInfoById(Long userId) {
    
            logger.debug(String.format("getUserInfoById()方法开始执行，参数userId:{%s}",userId));
            if (userId == null) {
                return ResponseUtil.reponseBody(ExceptionCode.REQUEST_PARAM_ERROR.getCode(),ExceptionCode.REQUEST_PARAM_ERROR.getMsg());
            }
    
            UUser user = helloService.getUserInfoById(userId);
            logger.debug("getUserInfoById()方法结束执行");
            return ResponseUtil.responseBody(user);
        }
    
        /**
         * @Author: wangyarui@iyungu.com
         * @Description:测试Logger日志
         * @Date: Created in 9:51 2018/7/3
         * @Param:
         * @Return:
         */
        @GetMapping("/testLoggerInfo")
        @ResponseBody
        public Message getLoggerInfo(int num) {
    
            logger.debug(String.format("getLoggerInfo()方法开始执行，参数num:{%s}",num));
            int result = 0;
            try {
                result = 5/num;
            } catch (Exception e) {
                logger.error("分母不能为0",e);
                e.printStackTrace();
            }
            logger.debug("getLoggerInfo()方法结束执行");
            return ResponseUtil.responseBody(result);
        }
    
        /**
         * @Author: wangyarui@iyungu.com
         * @Description:获取用户姓名（测试sql打印及tk.mybaits的mapper扫描）
         * @Date: Created in 11:22 2018/7/3
         * @Param: [userId]
         * @Return: com.iyungu.phantaci.vo.Message
         */
        @GetMapping("/testLoggerSql")
        @ResponseBody
        public Message getUserName(Long userId) {
    
            logger.debug(String.format("getUserName()开始执行,参数userId:{%s}",userId));
            if (userId == null) {
                logger.debug("无参数，getUserName()结束执行");
                return ResponseUtil.reponseBody(ExceptionCode.REQUEST_PARAM_ERROR.getCode(),ExceptionCode.REQUEST_PARAM_ERROR.getCode());
            }
            String userName = helloService.getUserNameById(userId);
            logger.debug("getUserName()结束执行");
            return ResponseUtil.responseBody(userName);
        }
    
    }

2.  config文件--->MybatisConfig

package com.iyungu.phantaci.config;
    
    import org.apache.ibatis.session.SqlSessionFactory;
    import org.mybatis.spring.SqlSessionFactoryBean;
    import org.springframework.context.annotation.Bean;
    
    
    public class MyBatisConfig {
    
        @Bean(name = "sqlSessionFactory")
        public SqlSessionFactory sqlSessionFactoryBean() {
            SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
            try {
                return bean.getObject();
            } catch (Exception e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            }
        }
    }

config文件--->MybatisMapperScannerConfig

package com.iyungu.phantaci.config;
    
    import org.springframework.boot.autoconfigure.AutoConfigureAfter;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import tk.mybatis.spring.mapper.MapperScannerConfigurer;
    
    import java.util.Properties;
    
    
    @Configuration
    //必须在MyBatisConfig注册后再加载MapperScannerConfigurer，否则会报错
    @AutoConfigureAfter(MyBatisConfig.class)
    public class MyBatisMapperScannerConfig {
        @Bean
        public MapperScannerConfigurer mapperScannerConfigurer() {
            MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
            mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory");
            mapperScannerConfigurer.setBasePackage("com.iyungu.phantaci.dao");
    
            //初始化扫描器的相关配置，这里我们要创建一个Mapper的父类
            Properties properties = new Properties();
            properties.setProperty("mappers", "com.iyungu.phantaci.util.MyMapper");
            properties.setProperty("notEmpty", "false");
            properties.setProperty("IDENTITY", "MYSQL");
    
            mapperScannerConfigurer.setProperties(properties);
    
            return mapperScannerConfigurer;
        }
    }

3. 注意：util文件--->MyMapper

package com.iyungu.phantaci.util;
    
    import tk.mybatis.mapper.common.Mapper;
    import tk.mybatis.mapper.common.MySqlMapper;
    
    
    public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {
        //TODO
        //FIXME 特别注意，该接口不能被扫描到，否则会出错
    }

第四部分：补充

1.  缺少webapp模块

解决方法：[SpringBoot添加webapp目录][SpringBoot_webapp]

2.完整项目下载

下载地址：[点击此处下载完整项目][Link 1]

3.项目目录

![70 1][]

[70]: /images/20220521/b4ed0cb014ad482ca2e3b1f64e44dc0b.png
[SpringBoot_webapp]: https://blog.csdn.net/fakerswe/article/details/80922536
[Link 1]: https://download.csdn.net/download/fakerswe/10521249
[70 1]: /images/20220521/64e44e922ac54e5f8024021926037ca3.png