thymeleaf 模块，redis 模块，mybatis 模块

Author: Tellsea

springboot-mybatis/.gitignore

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+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
+
+### VS Code ###
+.vscode/

springboot-mybatis/pom.xml

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+<?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>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.3.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.tosea</groupId>
+    <artifactId>springboot-mybatis</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>springboot-mybatis</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>2.0.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- mybatis启动器 -->
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>1.3.2</version>
+        </dependency>
+        <!-- 通用Mapper启动器 -->
+        <dependency>
+            <groupId>tk.mybatis</groupId>
+            <artifactId>mapper-spring-boot-starter</artifactId>
+            <version>2.1.0</version>
+        </dependency>
+        <!-- 分页助手启动器 -->
+        <dependency>
+            <groupId>com.github.pagehelper</groupId>
+            <artifactId>pagehelper-spring-boot-starter</artifactId>
+            <version>1.2.5</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

springboot-mybatis/sql/tb_user.sql

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+/*
+Navicat MySQL Data Transfer
+
+Source Server         : localhost
+Source Server Version : 50713
+Source Host           : localhost:3306
+Source Database       : springboot-learn
+
+Target Server Type    : MYSQL
+Target Server Version : 50713
+File Encoding         : 65001
+
+Date: 2019-04-02 13:35:56
+*/
+
+SET FOREIGN_KEY_CHECKS=0;
+
+-- ----------------------------
+-- Table structure for tb_user
+-- ----------------------------
+DROP TABLE IF EXISTS `tb_user`;
+CREATE TABLE `tb_user` (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `name` varchar(255) DEFAULT NULL,
+  `passwd` varchar(255) DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;
+
+-- ----------------------------
+-- Records of tb_user
+-- ----------------------------
+INSERT INTO `tb_user` VALUES ('1', 'tom', '123456');
+INSERT INTO `tb_user` VALUES ('2', 'susan', '123456');
+INSERT INTO `tb_user` VALUES ('3', 'super', '565656');
+INSERT INTO `tb_user` VALUES ('4', 'about', '888888');
+INSERT INTO `tb_user` VALUES ('5', 'relation', '000000');
+INSERT INTO `tb_user` VALUES ('6', 'ship', '345678');

springboot-mybatis/src/main/java/com/tosea/SpringbootMybatisApplication.java

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+package com.tosea;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import tk.mybatis.spring.annotation.MapperScan;
+
+@SpringBootApplication
+@MapperScan("com.tosea.mapper")
+public class SpringbootMybatisApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringbootMybatisApplication.class, args);
+    }
+
+}

springboot-mybatis/src/main/java/com/tosea/mapper/UserMapper.java

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+package com.tosea.mapper;
+
+import com.tosea.pojo.User;
+import tk.mybatis.mapper.common.Mapper;
+
+public interface UserMapper extends Mapper<User> {
+}

springboot-mybatis/src/main/java/com/tosea/pojo/User.java

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+package com.tosea.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import tk.mybatis.mapper.annotation.KeySql;
+
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@Table(name = "tb_user")
+public class User {
+
+    @Id
+    @KeySql(useGeneratedKeys = true)
+    private Long id;
+    private String name;
+    private String passwd;
+}

springboot-mybatis/src/main/java/com/tosea/service/UserService.java

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+package com.tosea.service;
+
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.tosea.mapper.UserMapper;
+import com.tosea.pojo.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.util.CollectionUtils;
+import tk.mybatis.mapper.entity.Example;
+
+import java.util.List;
+
+@Service
+public class UserService {
+
+    @Autowired
+    private UserMapper userMapper;
+
+    public void insert(User user) {
+        int count = userMapper.insert(user);
+        if (count != 1) {
+            System.out.println("新增失败");
+        }
+    }
+
+    public void update(User user) {
+        int count = userMapper.updateByPrimaryKey(user);
+        if (count != 1) {
+            System.out.println("更新失败");
+        }
+    }
+
+    public void delete(Long id) {
+        int count = userMapper.deleteByPrimaryKey(id);
+        if (count != 1) {
+            System.out.println("删除失败");
+        }
+    }
+
+    public void get(Long id) {
+        User user = userMapper.selectByPrimaryKey(id);
+        if (user == null) {
+            System.out.println("结果为空");
+        } else {
+            System.out.println(user);
+        }
+    }
+
+    public void list() {
+        List<User> list = userMapper.selectAll();
+        if (CollectionUtils.isEmpty(list)) {
+            System.out.println("结果为空");
+        } else {
+            System.out.println(list);
+        }
+    }
+
+    public void page() {
+        PageHelper.startPage(1, 3);
+        List<User> list = userMapper.selectAll();
+        PageInfo<User> info = new PageInfo<>(list);
+        if (CollectionUtils.isEmpty(list)) {
+            System.out.println("结果为空");
+        } else {
+            System.out.println(info);
+        }
+    }
+
+    public void pageByExample() {
+        PageHelper.startPage(1, 3);
+        Example example = new Example(User.class);
+        // 当名字含有a
+        example.createCriteria().orLike("name", "%a%").orEqualTo("letter");
+        List<User> list = userMapper.selectByExample(example);
+        PageInfo<User> info = new PageInfo<>(list);
+        if (CollectionUtils.isEmpty(list)) {
+            System.out.println("结果为空");
+        } else {
+            System.out.println(info);
+        }
+    }
+
+    /*public PageResult<Brand> queryBrandByPage(Integer page, Integer rows, String sortBy, Boolean desc, String key) throws LyException {
+        // 分页
+        PageHelper.startPage(page, rows);
+        Example example = new Example(Brand.class);
+        // 过滤
+        if (StringUtils.isNotBlank(key)) {
+            example.createCriteria().orLike("name", "%" + key + "%").orEqualTo("letter", key.toUpperCase()); // 设立条件
+        }
+        // 排序
+        if (StringUtils.isNotBlank(sortBy)) {
+            String orderByClause = sortBy + (desc ? " DESC" : " ASC");
+            example.setOrderByClause(orderByClause);
+        }
+        // 查询
+        List<Brand> list = brandMapper.selectByExample(example);
+        if (CollectionUtils.isEmpty(list)) {
+            throw new LyException(ExceptionEnum.BRAND_NOT_FOUND);
+        }
+        // 解析分页结果
+        PageInfo<Brand> info = new PageInfo<>(list);
+
+        return new PageResult<>(info.getTotal(), list);
+    }*/
+}

springboot-mybatis/src/main/resources/application.yml

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+spring:
+  application:
+    name: item-service
+  datasource:
+    url: jdbc:mysql://localhost:3306/springboot-learn
+    username: root
+    password: 123456
+    hikari:
+      maximum-pool-size: 30
+      minimum-idle: 10

springboot-mybatis/src/test/java/com/tosea/SpringbootMybatisApplicationTests.java

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+package com.tosea;
+
+import com.tosea.pojo.User;
+import com.tosea.service.UserService;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringbootMybatisApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 新增
+     */
+    @Test
+    public void insert() {
+        User user = new User();
+        user.setName("tosea");
+        user.setPasswd("123456");
+        userService.insert(user);
+    }
+
+    /**
+     * 更新
+     */
+    @Test
+    public void update() {
+        User user = new User();
+        user.setId(1L);
+        user.setName("aesot");
+        user.setPasswd("654321");
+        userService.update(user);
+    }
+
+    /**
+     * 删除
+     */
+    @Test
+    public void delete() {
+        userService.delete(2L);
+    }
+
+    /**
+     * 查询单个
+     */
+    @Test
+    public void get() {
+        userService.get(1L);
+    }
+
+    /**
+     * 查询所有
+     */
+    @Test
+    public void list() {
+        userService.list();
+    }
+
+    /**
+     * 分页查询
+     */
+    @Test
+    public void page() {
+        userService.page();
+    }
+
+    /**
+     * 分页查询 + 条件过滤
+     */
+    @Test
+    public void pageByExample() {
+        userService.pageByExample();
+    }
+
+}