Springboot 整合 Mybatis 的完整 Web 案例

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>
+
+    <groupId>springboot</groupId>
+    <artifactId>springboot-mybatis</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>springboot-mybatis :: 整合 Mybatis Demo</name>
+
+    <!-- Spring Boot 启动父依赖 -->
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>1.5.1.RELEASE</version>
+    </parent>
+
+    <properties>
+        <mybatis-spring-boot>1.2.0</mybatis-spring-boot>
+        <mysql-connector>5.1.39</mysql-connector>
+    </properties>
+
+    <dependencies>
+
+        <!-- Spring Boot Web 依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- Spring Boot Test 依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- Spring Boot Mybatis 依赖 -->
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>${mybatis-spring-boot}</version>
+        </dependency>
+
+        <!-- MySQL 连接驱动依赖 -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>${mysql-connector}</version>
+        </dependency>
+
+        <!-- Junit -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+        </dependency>
+    </dependencies>
+</project>

springboot-mybatis/src/main/java/org/spring/springboot/Application.java

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+package org.spring.springboot;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.spring.springboot.dao.CityDao;
+import org.spring.springboot.domain.City;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Spring Boot 应用启动类
+ *
+ * Created by bysocket on 16/4/26.
+ */
+// Spring Boot 应用的标识
+@SpringBootApplication
+@MapperScan("org.spring.springboot.dao")
+public class Application {
+
+    public static void main(String[] args) {
+        // 程序启动入口
+        // 启动嵌入式的 Tomcat 并初始化 Spring 环境及其各 Spring 组件
+        SpringApplication.run(Application.class,args);
+    }
+}

springboot-mybatis/src/main/java/org/spring/springboot/controller/CityRestController.java

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+package org.spring.springboot.controller;
+
+import org.spring.springboot.domain.City;
+import org.spring.springboot.service.CityService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Created by bysocket on 07/02/2017.
+ */
+@RestController
+public class CityRestController {
+
+    @Autowired
+    private CityService cityService;
+
+    @RequestMapping(value = "/api/city", method = RequestMethod.GET)
+    public City findOneCity(@RequestParam(value = "cityName", required = true) String cityName) {
+        return cityService.findCityByName(cityName);
+    }
+
+}

springboot-mybatis/src/main/java/org/spring/springboot/dao/CityDao.java

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+package org.spring.springboot.dao;
+
+import org.apache.ibatis.annotations.Param;
+import org.spring.springboot.domain.City;
+
+/**
+ * 城市 DAO 接口类
+ *
+ * Created by bysocket on 07/02/2017.
+ */
+public interface CityDao {
+
+    /**
+     * 根据城市名称，查询城市信息
+     *
+     * @param cityName 城市名
+     */
+    City findByName(@Param("cityName") String cityName);
+}

springboot-mybatis/src/main/java/org/spring/springboot/domain/City.java

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+package org.spring.springboot.domain;
+
+/**
+ * 城市实体类
+ *
+ * Created by bysocket on 07/02/2017.
+ */
+public class City {
+
+    /**
+     * 城市编号
+     */
+    private Long id;
+
+    /**
+     * 省份编号
+     */
+    private Long provinceId;
+
+    /**
+     * 城市名称
+     */
+    private String cityName;
+
+    /**
+     * 描述
+     */
+    private String description;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getProvinceId() {
+        return provinceId;
+    }
+
+    public void setProvinceId(Long provinceId) {
+        this.provinceId = provinceId;
+    }
+
+    public String getCityName() {
+        return cityName;
+    }
+
+    public void setCityName(String cityName) {
+        this.cityName = cityName;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+}

springboot-mybatis/src/main/java/org/spring/springboot/service/CityService.java

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+package org.spring.springboot.service;
+
+import org.spring.springboot.domain.City;
+
+/**
+ * 城市业务逻辑接口类
+ *
+ * Created by bysocket on 07/02/2017.
+ */
+public interface CityService {
+
+    /**
+     * 根据城市名称，查询城市信息
+     * @param cityName
+     */
+    City findCityByName(String cityName);
+}

springboot-mybatis/src/main/java/org/spring/springboot/service/impl/CityServiceImpl.java

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+package org.spring.springboot.service.impl;
+
+import org.spring.springboot.dao.CityDao;
+import org.spring.springboot.domain.City;
+import org.spring.springboot.service.CityService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * 城市业务逻辑实现类
+ *
+ * Created by bysocket on 07/02/2017.
+ */
+@Service
+public class CityServiceImpl implements CityService {
+
+    @Autowired
+    private CityDao cityDao;
+
+    public City findCityByName(String cityName) {
+        return cityDao.findByName(cityName);
+    }
+
+}

springboot-mybatis/src/main/resources/mapper/CityMapper.xml

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+<?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="org.spring.springboot.dao.CityDao">
+	<resultMap id="BaseResultMap" type="org.spring.springboot.domain.City">
+		<result column="id" property="id" />
+		<result column="province_id" property="provinceId" />
+		<result column="city_name" property="cityName" />
+		<result column="description" property="description" />
+	</resultMap>
+
+	<parameterMap id="City" type="org.spring.springboot.domain.City"/>
+
+	<sql id="Base_Column_List">
+		id, province_id, city_name, description
+	</sql>
+
+	<select id="findByName" resultMap="BaseResultMap" parameterType="java.lang.String">
+		select
+		<include refid="Base_Column_List" />
+		from city
+		where city_name = #{cityName}
+	</select>
+
+</mapper>

springboot-mybatis/src/main/resources/mybatis-config.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration
+        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+    <typeAliases>
+        <package name="org.spring.springboot.domain"/>
+    </typeAliases>
+    <mappers>
+        <mapper resource="mapper/CityMapper.xml"/>
+    </mappers>
+</configuration>