简单使用mybatis(idea中使用)

首先创建一个maven项目

第一步：在pom.xml中添加依赖

<dependencies>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <!--数据库相关 jar 包-->
        <dependency>
            <groupId>org.mariadb.jdbc</groupId>
            <artifactId>mariadb-java-client</artifactId>
            <version>2.3.0</version>
        </dependency>
        <!-- JUnit单元测试工具 -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.10</version>
    </dependency>
    </dependencies>

第二步：创建数据库表

CREATE TABLE BOOK(
ID INT AUTO_INCREMENT PRIMARY KEY,
NAME VARCHAR(20),
NUMBER int );
insert into BOOK(NAME,NUMBER) VALUES
('Java程序设计',10),
('数据结构',10),
('设计模式',10)

第三步：在main目录下的java源代码写代码

实体类Book

package com.wbg.entity;

public class Book {
    int id;
    String name;
    int number;

    @Override
    public String toString() {
        return "Book{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", number=" + number +
                '}';
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public Book() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getNumber() {
        return number;
    }

    public void setNumber(int number) {
        this.number = number;
    }

    public Book(int id, String name, int number) {
        this.id = id;
        this.name = name;
        this.number = number;
    }
}

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