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本節(jié)視頻

【視頻】微服務框架-SpringBoot-MyBatis-測試

使用 tk.mybatis 操作數(shù)據(jù)庫

經(jīng)過之前章節(jié)一系列的配置之后，我們已經(jīng)滿足了使用 MyBaits 操作數(shù)據(jù)庫的必要條件，下面是使用 tk.mybatis 操作數(shù)據(jù)庫的例子。

我們以測試操作用戶表為例（tb_user）

修改入口類

需要使用 @MapperScan 注解來指定 Mapper 接口的路徑

PS： 注意這里的 @MapperScan 注解是 tk.mybatis.spring.annotation.MapperScan; 包下的

package com.funtl.hello.spring.boot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import tk.mybatis.spring.annotation.MapperScan;

@SpringBootApplication
@MapperScan(basePackages = "com.funtl.hello.spring.boot.mapper")
public class HelloSpringBootApplication {

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

創(chuàng)建測試類

package com.funtl.hello.spring.boot;

import com.funtl.hello.spring.boot.entity.TbUser;
import com.funtl.hello.spring.boot.mapper.TbUserMapper;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
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.annotation.Rollback;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;

import java.util.Date;
import java.util.List;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = HelloSpringBootApplication.class)
@Transactional
@Rollback
public class MyBatisTests {

    /**
     * 注入數(shù)據(jù)查詢接口
     */
    @Autowired
    private TbUserMapper tbUserMapper;

    /**
     * 測試插入數(shù)據(jù)
     */
    @Test
    public void testInsert() {
        // 構造一條測試數(shù)據(jù)
        TbUser tbUser = new TbUser();
        tbUser.setUsername("Lusifer");
        tbUser.setPassword("123456");
        tbUser.setPhone("15888888888");
        tbUser.setEmail("topsale@vip.qq.com");
        tbUser.setCreated(new Date());
        tbUser.setUpdated(new Date());

        // 插入數(shù)據(jù)
        tbUserMapper.insert(tbUser);
    }

    /**
     * 測試刪除數(shù)據(jù)
     */
    @Test
    public void testDelete() {
        // 構造條件，等同于 DELETE from tb_user WHERE username = 'Lusifer'
        Example example = new Example(TbUser.class);
        example.createCriteria().andEqualTo("username", "Lusifer");

        // 刪除數(shù)據(jù)
        tbUserMapper.deleteByExample(example);
    }

    /**
     * 測試修改數(shù)據(jù)
     */
    @Test
    public void testUpdate() {
        // 構造條件
        Example example = new Example(TbUser.class);
        example.createCriteria().andEqualTo("username", "Lusifer");

        // 構造一條測試數(shù)據(jù)
        TbUser tbUser = new TbUser();
        tbUser.setUsername("LusiferNew");
        tbUser.setPassword("123456");
        tbUser.setPhone("15888888888");
        tbUser.setEmail("topsale@vip.qq.com");
        tbUser.setCreated(new Date());
        tbUser.setUpdated(new Date());

        // 修改數(shù)據(jù)
        tbUserMapper.updateByExample(tbUser, example);
    }

    /**
     * 測試查詢集合
     */
    @Test
    public void testSelect() {
        List<TbUser> tbUsers = tbUserMapper.selectAll();
        for (TbUser tbUser : tbUsers) {
            System.out.println(tbUser.getUsername());
        }
    }

    /**
     * 測試分頁查詢
     */
    @Test
    public void testPage() {
        // PageHelper 使用非常簡單，只需要設置頁碼和每頁顯示筆數(shù)即可
        PageHelper.startPage(0, 2);

        // 設置分頁查詢條件
        Example example = new Example(TbUser.class);
        PageInfo<TbUser> pageInfo = new PageInfo<>(tbUserMapper.selectByExample(example));

        // 獲取查詢結(jié)果
        List<TbUser> tbUsers = pageInfo.getList();
        for (TbUser tbUser : tbUsers) {
            System.out.println(tbUser.getUsername());
        }
    }
}

附：完整的 POM

<?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>com.funtl</groupId>
    <artifactId>hello-spring-boot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>hello-spring-boot</name>
    <description></description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <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-tomcat</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>2.0.2</version>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.5</version>
        </dependency>

        <dependency>
            <groupId>net.sourceforge.nekohtml</groupId>
            <artifactId>nekohtml</artifactId>
            <version>1.9.22</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.funtl.hello.spring.boot.HelloSpringBootApplication</mainClass>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <configuration>
                    <configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile>
                    <overwrite>true</overwrite>
                    <verbose>true</verbose>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>${mysql.version}</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>3.4.4</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

</project>

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測試 MyBatis 操作數(shù)據(jù)庫

測試 MyBatis 操作數(shù)據(jù)庫

本節(jié)視頻

使用 tk.mybatis 操作數(shù)據(jù)庫

修改入口類

創(chuàng)建測試類

附：完整的 POM

推薦閱讀更多精彩內(nèi)容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美 国产 综合 欧美 视频

測試 MyBatis 操作數(shù)據(jù)庫

本節(jié)視頻

使用 tk.mybatis 操作數(shù)據(jù)庫

修改入口類

創(chuàng)建測試類

附：完整的 POM

推薦閱讀更多精彩內(nèi)容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频