首先创建一个springboot项目,如果不会可以先百度,或者https://start.spring.io/ 可以直接生成一个springboot项目,我就是这样弄的。
下载好以后导入到eclipse
项目结构

先安装好mybatis-generator插件,不会的可以看这篇https://www.songhaozhi.com/archives/eclipsean-zhuang-mybatis-generatorcha-jian
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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.shz</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</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/> <!-- lookup parent from repository -->
</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-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<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>1.3.2</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>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

这里不使用application.properties文件 而使用更加简洁的application.yaml文件,可以直接重命名把后缀改为yaml

server:
port: 8080
spring:
datasource:
url: jdbc:mysql://换成你的链接:3306/数据库名称
username: root
password: 123456
driver-class-name: com.mysql.jdbc.Driver
mybatis:
typeAliasesPackage: com.shz.model
mapperLocations: classpath:mapper/*.xml

创建好相应的包

然后看一下mybatis-generator.xml,把相关的路径替换成你自己的

<?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>
<context id="DB2Tables" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--数据库链接地址账号密码-->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://数据库连接:3306/数据库名称" userId="root" password="123456">
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!--生成Model类存放位置-->
<javaModelGenerator targetPackage="com.shz.demo.model" targetProject="demo/src/main/java">
<property name="enableSubPackages" value="true"/>
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!--对应的mapper.xml文件 -->
<sqlMapGenerator targetPackage="mapper" targetProject="demo/src/main/resources">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!--生成Dao类存放位置-->
<!-- 客户端代码,生成易于使用的针对Model对象和XML配置文件 的代码
type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
-->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.shz.demo.dao" targetProject="demo/src/main/java">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>
<!--生成对应表及类名-->
<table tableName="t_users" domainObjectName="Users" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
<!--<table tableName="t_goods" domainObjectName="Goods" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
--> <!--enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"-->
<!--selectByExampleQueryId="false"/>-->
</context>
</generatorConfiguration>

替换好以后点击运行

生成成功!

然后我们把相关的action和service等写一下
UsersAction

package com.shz.demo.action;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.shz.demo.model.Users;
import com.shz.demo.service.UserService;
@Controller
@RequestMapping(value = "/users")
public class UsersAction {
@Autowired
private UserService userService;
@RequestMapping(value = "/saveUsers")
@ResponseBody
public int saveUsers(String name, String pwd) {
Users users = new Users();
users.setName(name);
users.setPwd(pwd);
userService.saveUsers(users);
return 1;
}
}

UserService

package com.shz.demo.service;
import com.shz.demo.model.Users;
public interface UserService {
void saveUsers(Users users);
}

UserServiceImpl

package com.shz.demo.service.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.shz.demo.dao.UsersMapper;
import com.shz.demo.model.Users;
import com.shz.demo.service.UserService;
@Service
public class UserServiceImpl implements UserService{
@Autowired
private UsersMapper usersMapper;
@Override
public void saveUsers(Users users) {
usersMapper.insert(users);
}
}
package com.shz.demo;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@MapperScan("com.shz.demo.dao")//这里一定不要忘记
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

右键启动项目
数据库显示是空的

我们发送一个请求

debug到后台看看值传过去没有

没毛病,返回1


其他的操作就不写了,都一样
项目资源:https://download.csdn.net/download/qq_26173219/10505298