SpringBoot与MyBatis整合

SpringBoot与MyBatis整合实现小型进销存项目

1、导入依赖

<?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 https://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>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.zn</groupId>
    <artifactId>springboot_invoicing</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot_invoicing</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.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
        <!-- 核心依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- 可以实现热部署，在IDEA上实现热部署还需一些额外的配置，请查阅资料 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>runtime</scope>
        </dependency>

        <!-- JDBC for mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.32</version>
        </dependency>

        <!-- mybatis -->
        <!--mybatis-->
        <!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.1</version>
        </dependency>

        <!--fastJson-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.12</version>
        </dependency>
        <!--druid-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.18</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.1</version>
        </dependency>
        <!--thymeleaf  新的模板引擎，比jsp要出色-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <!--jdbc-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <!-- 分页插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.3</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <!--xml配置，此是为了将来整合Hibernate或者mybatis 默认没有需要配置-->
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
    </build>

</project>

2、配置application.properties

　　　　

 3、页面以及静态配置

　　　　

4、dao层

 　　　　

　　　　

 　　　　

　　　　

 5、dao.xml　　

<?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">
<!--namespace需要指向接口全路径-->
<mapper namespace="com.zn.dao.ProductDao">

    <select id="getList" resultType="com.zn.entity.Product">
        select * from product
    </select>

    <select id="getname" resultType="com.zn.entity.Product">
        select * from product where pid=#{pid}
    </select>
</mapper>

<?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">
<!--namespace需要指向接口全路径-->
<mapper namespace="com.zn.dao.SaleDao">
    <resultMap id="getAllSales" type="com.zn.entity.Sale">
        <id property="sid" column="sid"></id>
        <result property="quantity" column="quantity"></result>
        <result property="price" column="price"></result>
        <result column="totalPrice" property="totalPrice"></result>
        <result property="saleDate" column="saleDate"></result>
        <result column="userId" property="userId"></result>
        <result property="productId" column="productId"></result>
        <association property="product" javaType="com.zn.entity.Product">
            <id column="pid" property="pid"></id>
            <result column="productName" property="productName"></result>
        </association>
        <association property="user" javaType="com.zn.entity.User">
            <id property="uid" column="uid"></id>
            <result column="userName" property="userName"></result>
        </association>
    </resultMap>

    <select id="getsale" resultMap="getAllSales">
        select * from product as p,sale as s,users as u where p.pid=s.productId and u.uid=s.userId
        <if test="num==1">
            order by s.totalPrice DESC
        </if>
        <if test="num==2">
            order by s.saleDate DESC
        </if>
    </select>

    <select id="getList" resultType="com.zn.entity.Product">
        select * from product
    </select>

    <insert id="addsale">
        INSERT INTO sale(price,quantity,totalPrice,saleDate,userId,productId)
         VALUE(#{price},#{quantity},#{totalPrice},#{saleDate},#{userId},#{productId})
    </insert>
</mapper>

<?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">
<!--namespace需要指向接口全路径-->
<mapper namespace="com.zn.dao.UserDao">

    <select id="login" resultType="com.zn.entity.User">
        select * from users where userName=#{userName} and password=#{password}
    </select>
</mapper>

6、service层

　　　   

 　　

　　　　

　　　　

 7、serviceImpl层

　　　　

　　　　

　　　　

8、controller层　　

package com.zn.controller;

import com.zn.entity.Product;
import com.zn.service.ProductService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.annotation.Resource;
import java.util.List;

@Controller
@RequestMapping("/product")
public class ProductController {

    @Resource(name = "ProductService")
    ProductService productService;

    @RequestMapping("/getproduct")
    @ResponseBody
    public Object getProductList(){
        System.out.println("库存列表绑定");
        List<Product> proList = productService.getList();
        return proList;

    }

    /*根据id查询库存*/
    @RequestMapping("/getpr")
    @ResponseBody
    public Object getProduct(Integer pid){
        System.out.println("库存详情");
        Product proLists = productService.getname(pid);
        return proLists;

    }

}

package com.zn.controller;

import com.github.pagehelper.PageInfo;
import com.zn.entity.Product;
import com.zn.entity.Sale;
import com.zn.entity.User;
import com.zn.service.SaleService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.util.Date;
import java.util.List;

@Controller
@RequestMapping("/sale")
public class SaleController {
    @Resource(name = "SaleService")
    SaleService saleService;

    @RequestMapping("/getsale")
    @ResponseBody
    public Object getsale(Integer num, Integer pageNum, Integer pageSize){
        System.out.println("进了吗？？");
        PageInfo<Sale> getsale = saleService.getsale(num, pageNum + 1, 5);
        return getsale;
    }

    @RequestMapping("/getlist")
    @ResponseBody
    public Object getlist(){
        System.out.println("绑定下拉框");
        List<Product> list = saleService.getList();
        return list;
    }

    @RequestMapping("/addsale")
    @ResponseBody
    public ModelAndView addsale(Sale sale, HttpServletRequest request, ModelAndView mv){
        if (sale!=null){
            Double totalPrice=sale.getPrice() * sale.getQuantity();
            sale.setTotalPrice(totalPrice);
            sale.setSaleDate(new Date());
            User login = (User) request.getSession().getAttribute("login");
            sale.setUserId(login.getUid());
            int addsale = saleService.addsale(sale);
            if (addsale>0){
                System.out.println("添加成功！");
                mv.setViewName("saleList");
            }else{
                System.out.println("添加失败！");
                mv.setViewName("prodectAdd");
            }
        }
        return mv;
    }
}

package com.zn.controller;

import com.zn.entity.User;
import com.zn.service.UserService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Controller
@RequestMapping(value = "/user")
public class UserController {
    @Resource(name = "UserService")
    UserService userService;
    @RequestMapping("/login")
    @ResponseBody
    public ModelAndView login(User user, HttpServletRequest request, HttpServletResponse response, ModelAndView modelAndView){
        User login = userService.login(user);
        if (login!=null){
            System.out.println("登陆成功！");
            request.getSession().setAttribute("login",login);
            modelAndView.setViewName("index");
        }else {
            modelAndView.setViewName("login");
        }
        return modelAndView;
    }

    /*转发登陆页面*/
    @RequestMapping("/goLogin")
    public Object goLogin(){
        return "login";
    }

    /*转发查询页面*/
    @RequestMapping("leList")
    public Object saleList(){
        return "saleList";
    }

    /*转发销售页面*/
    @RequestMapping("/prodectAdd")
    public Object productAdd(){
        return "prodectAdd";
    }

    /*转发查看库存页面*/
    @RequestMapping("/prview")
    public Object prview(){
        return "prview";
    }
}