總結一個項目中使用的逆向工程

先配置maven，這個是以插件形式配置的maven

<plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.47</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>3.4.4</version>
                    </dependency>
                </dependencies>
                <configuration>
                    <!--配置檔案的路徑-->
                    <configurationFile>src/main/resources/ZGeneratorConfig.xml</configurationFile>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
           

tkmybatis很好用，單表的crud根本不需要寫代碼賊騷

<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>1.2.4</version>
            <exclusions>
                <exclusion>
                    <artifactId>spring-boot-autoconfigure</artifactId>
                    <groupId>org.springframework.boot</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.3</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-autoconfigure</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
            <version>2.7.8</version>
        </dependency>
           

這是給實體類中寫的注解，讓實體類能找到所對應的表

@Table(name = "`user`")
public class UserDo {
    @Column(name = "`user_name`")
    private String userName;

    @Column(name = "`age`")
    private Integer age;

    @Column(name = "`pass_word`")
    private String passWord;
  }
           

看一下配置的xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <context id="mysql">
        <property name="javaFileEncoding" value="UTF-8"/>

        <!-- 通用mapper插件 -->
        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <property name="mappers" value="tk.mybatis.mapper.common.Mapper"/>
            <property name="caseSensitive" value="true"/>
            <property name="forceAnnotation" value="true"/>
            <property name="beginningDelimiter" value="`"/>
            <property name="endingDelimiter" value="`"/>
        </plugin>

        <!-- 注釋 -->
        <commentGenerator>
            <property name="suppressTypeWarnings" value="true"/><!-- 抑制警告 -->
            <property name="suppressAllComments" value="true"/><!-- 是否取消注釋 -->
            <property name="suppressDate" value="true"/><!-- 是否生成注釋代時間戳-->
        </commentGenerator>

        <!-- 代碼生成統一放到target路徑下，以免直接覆寫原有的代碼造成不可挽回的損失。 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/test"
                        userId="xxx" password="xxx"/>

        <javaModelGenerator targetPackage="com.example.page.model"
                            targetProject="MAVEN">
            <property name="enableSubPackages" value="true"/>
            <!-- 是否針對string類型的字段在set的時候進行trim調用 -->
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <sqlMapGenerator targetPackage="com.example.page.mapper"
                         targetProject="MAVEN">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>

        <javaClientGenerator type="XMLMAPPER" targetPackage="com.example.page.mapper"
                             targetProject="MAVEN">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
	<!--  表名 -->
        <table tableName="user" domainObjectName="UserDO"
               enableSelectByExample="false"
               enableDeleteByExample="false"
               enableCountByExample="false"
               enableUpdateByExample="false">
            <generatedKey column="id" sqlStatement="JDBC" identity="true"/>
        </table>

    </context>
</generatorConfiguration>
           

這裡強調一下這裡表名的domainObjectName的值DO一定要大寫。否則檢測不到，搞好後啟動插件

建立好mapper，bean，dao然後就可以使用了。

properties中配置

#通用mapper
mapper.mappers=tk.mybatis.mapper.common.Mapper
mapper.not-empty=false
mapper.identity=MYSQL
mapper.before=true

# Mybatis配置
mybatis.type-aliases-package=com.example.page.model
mybatis.configuration.cache-enabled=false
mybatis.configuration.mapUnderscoreToCamelCase=true

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.hikari.maximum-pool-size=5
spring.datasource.hikari.minimum-idle=5
spring.datasource.hikari.connection-test-query=SELECT 1 FROM DUAL

@SpringBootApplication(scanBasePackages = "com.example.page")
@EnableScheduling
@ServletComponentScan
@EnableTransactionManagement
@MapperScan(value = "com.example.page.mapper")