Spring Boot+MyBatis项目搭建

步骤一、pom.xml依赖jar包配置

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.hzit</groupId>
    <artifactId>SpringBootTest1</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>SpringBootTest1 Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.3.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</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>1.1.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.14</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>

    </dependencies>
    <build>
        <finalName>SpringBootTest1</finalName>
        <plugins>
            <plugin>
                <!-- maven构件需要的JDK默认版本是1.5，和工程中的不是同一个，所以需要构件3.0需要重新指定 -->
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>utf-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

步骤二、application.properties文件配置

# 配置jsp文件的位置，默认位置为：src/main/webapp
spring.mvc.view.prefix=/WEB-INF/jsp/
# 配置jsp文件的后缀
spring.mvc.view.suffix=.jsp

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/mydb?useUnicode = true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
spring.datasource.username=root
spring.datasource.password=root
#如果dao接口名称和路径跟mapper.xml文件不一致的时候可以手动指定位置
#mybatis.mapper-locations=classpath*:mybatis/*Mapper.xml
mybatis.type-aliases-package=com.ycl.sbt.bean

步骤三、编写bean

package com.ycl.sbt.bean;

public class City {
    private int cityId;
    private String cityName;
    private String zipCode;
    private int provinceId;

    public int getCityId() {
        return cityId;
    }

    public void setCityId(int cityId) {
        this.cityId = cityId;
    }

    public String getCityName() {
        return cityName;
    }

    public void setCityName(String cityName) {
        this.cityName = cityName;
    }

    public String getZipCode() {
        return zipCode;
    }

    public void setZipCode(String zipCode) {
        this.zipCode = zipCode;
    }

    public int getProvinceId() {
        return provinceId;
    }

    public void setProvinceId(int provinceId) {
        this.provinceId = provinceId;
    }

    @Override
    public String toString() {
        return "City [cityId=" + cityId + ", cityName=" + cityName + ", zipCode=" + zipCode + ", provinceId="
                + provinceId + "]";
    }

}

步骤四、编写dao层

<?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.ycl.sbt.dao.CityMapper">
    <select id="getCityListByPid" resultType="City" >
        select cityId,cityName,zipCode,provinceId from s_city where provinceId=#{provinceId}
    </select>
</mapper>

package com.ycl.sbt.dao;

import java.util.List;

import com.ycl.sbt.bean.City;

public interface CityMapper {
    public List<City> getCityListByPid(String provinceId);
}

步骤五、编写service

package com.ycl.sbt.service;

import java.util.List;

import com.ycl.sbt.bean.City;

public interface ICityService {
    public List<City> getCityListByPid(String provinceId);
}

package com.ycl.sbt.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.ycl.sbt.bean.City;
import com.ycl.sbt.dao.CityMapper;
import com.ycl.sbt.service.ICityService;

@Service
public class CityServiceImpl implements ICityService {

    @Autowired
    private CityMapper CityMapper;

    @Override
    public List<City> getCityListByPid(String provinceId) {
        return CityMapper.getCityListByPid(provinceId);
    }

}

步骤六、编写controller

package com.ycl.sbt.controller;

import java.util.List;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.ycl.sbt.bean.City;
import com.ycl.sbt.service.ICityService;

@EnableAutoConfiguration
@RestController
@ComponentScan("com.ycl.sbt.service")
@MapperScan("com.ycl.sbt.dao")
public class CityController {

    @Autowired
    private ICityService cityService;

    @RequestMapping("getCityListByPid")
    public List<City> getCityListByPid(String provinceId) {
        return cityService.getCityListByPid(provinceId);
    }
}

步骤七、编写启动程序

package com.ycl.sbt.controller;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class HelloBoot {
    public static void main(String[] args) {
        SpringApplication.run(HelloBoot.class, args);
    }
}
 

步骤八、访问

http://localhost:8080/getCityListByPid?provinceId=1

[{"cityId":1,"cityName":"太原","zipCode":"11111","provinceId":1},{"cityId":7,"cityName":"太原县","zipCode":"11211","provinceId":1}]