MyBatis from entry to the master (Chapter 5): 5.4 Example Introduction

 

  In the context of the MBG targetRuntime configured as MyBatis 3 , Example MBG is generated and related objects and methods , to introduce this section relating to Example methods .

Create a new table for the country related to Example MBG profiles , new profiles generatorConfig-country.xml follows .

<?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>
    <classPathEntry location="C:\Users\kangy\.m2\repository\mysql\mysql-connector-java\5.1.45\mysql-connector-java-5.1.45.jar"/>
    
    <context id="MySqlContext" targetRuntime="MyBatis3" defaultModelType="flat">
        <property name="javaFileEncoding" value="UTF-8"/>

        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <property name="addRemarkComments" value="true"/>
        </commentGenerator>

        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/testmybatis"
                        userId="root"
                        password="root">
        </jdbcConnection>

        <javaModelGenerator targetPackage="tk.mybatis.simple.model" targetProject="simple\src\main\java">
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <sqlMapGenerator targetPackage="tk.mybatis.simple.mapper"  targetProject="simple\src\main\resources"/>

        <javaClientGenerator type="XMLMAPPER" targetPackage="tk.mybatis.simple.mapper"  targetProject="simple\src\main\java"/>

        <table tableName="country">
            <generatedKey column="id" sqlStatement="MySql"/>
        </table>
    </context>
</generatorConfiguration>

 

 This configuration is carried out for the Eclipse plug-in , so if you use other means , please pay attention to modify targetProject property .

 The above configuration of the package name is in accordance with Chapter 2 of specification writing , and therefore the original conflict Country object (XML Mapper interfaces and because the use of Eclipse plug-ins , so there is no conflict ) . In this case , Mr. into the code , and then deal with inconsistencies .

 After generating the code can be found CountryMapper interface adds a number of basic methods , CountryMapper.xml also increased corresponding SQL statement .

 Here in the original by adding a new test CountryMapperTest test to understand the relevant class of usage Example . First Example object by means of a comprehensive call to understand Example , the following code .