Mybatis the automatic generation

Use Mybatis to automatically generate our dao interfaces, mapper files and entity classes.

 

1, pom.xml dependent on:

    <dependencies>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.2</version>
        </dependency>
    </dependencies>

2, pom.xml plugins:

    <build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <configuration>
                    <!--要创建的 generator 配置文件路径-->
                    <configurationFile>generatorConfig.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.mybatis.generator</groupId>
                        <artifactId>mybatis-generator-core</artifactId>
                        <version>1.3.2</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

3, the most important generatorConfig.xml file:

<? Xml Version = "1.0" encoding = "UTF-8" ?> 
<! DOCTYPE generatorConfiguration the PUBLIC "- // mybatis.org//DTD the Configuration MyBatis Generator 1.0 // EN" "http://mybatis.org/dtd /mybatis-generator-config_1_0.dtd " > 
< generatorConfiguration > 

    ! <- 1. modify absolute path connected to its local jar package MySQL (driving packets) -> 
    < classpathentry LOCATION =" D: \ Tools \ MySQL- 5.1.39.jar-java-Connector " /> 
    < context ID =" context "  > 
        < commentGenerator > 
            <-! encoded file generated java -> 
            <property name="javaFileEncoding"value = "UTF-. 8" /> 
            < Property name = "suppressAllComments" value = "to false"  /> 
            < Property name = "suppressDate" value = "to true" /> 
        </ commentGenerator > 

        <-! 2. specified database drive, connection address, user name, password, (similar to the data source) -> 
        < JdbcConnection driverClass = "com.mysql.jdbc.Driver" 
                        the connectionURL = "JDBC: MySQL: /// EDA to true useUnicode = & amp; & amp to false useSSL =? ; = UTF-characterEncoding. 8 " the userId =" the root " password="root" />

        <!--3. The entity class generated location (absolute need to specify a package name and address) (address can be customized, but does not automatically create a path exists, using Maven generated in the target directory, created automatically) -> 
        < javaModelGenerator targetPackage = "com.jieku.model" targetProject = "D: \ IdeaProjects \ trymp_springboot \ mybatis_gen \ src \ main \ the Java"  > 
            < Property name = "enableSubPackages" value = "to true" /> 
            <-! If true, MBG will be based generating a schema catalog and sub-packets. If false it will directly targetPackage property. The default is false -> 
            < Property name = "trimStrings" value = "to true"  />  <-! When the database fields using CHAR, with spaces may need to go to space ->
        > 

        <! - 4. Generated files Mapper (xxxMapper.xml) -> 
        < sqlMapGenerator targetPackage = "Mapper" targetProject = "D: \ IdeaProjects \ trymp_springboot \ mybatis_gen \ the src \ main \ Resources"  /> 

        <! - 5. generate document Dao (interface) may be configured type = "XMLMAPPER" generated dao xml implemented -> 
        < javaClientGenerator targetPackage = "com.jieku.dao" targetProject = "D: \ IdeaProjects \ trymp_springboot \ mybatis_gen \ the src \ main \ Java " type =" XMLMAPPER "  /> 

        <-! 6. The table specifies all -> 
        < table tableName ="% "/>

        <!-- 7. New Maven command, says:
            mybatis-generator:generate -e
        -->

    </context>
</generatorConfiguration>

4, New Maven command

5, execute Maven command:

6, implementation of the results

 

At this point, generate complete.