Mybatis generator 逆向生成代碼

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簡單介紹

本文介紹用mybatis逆向生成javaben dao接口

1.創建maven項目 創建相應的包

附上項目創建完成的圖片

 

 然后在pom.xml文件里面引入需要的jar的依賴 

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.xx</groupId>
    <artifactId>Mybaits</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>Mybaits Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.0</version>
        </dependency>

        <!-- mybaits-generator -->
        <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.5</version>
        </dependency>
        <!-- 數據庫驅動 -->
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>Mybaits</finalName>
    </build>
</project>

 

然后在src/main/resources下創建generator所需的配置文件

配置文件里面有些地方需要改動，需要的朋友可以根據自己的情況改動

 

 在這附上配置文件內容

<?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="DB2Tables" targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!-- 配置數據庫連接 -->
        <jdbcConnection driverClass="oracle.jdbc.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:xe" userId="admin007" password="admin">
        </jdbcConnection>

        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        <!-- 指定javaBean生成的位置 -->
        <javaModelGenerator targetPackage="com.bean" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <!--指定sql映射文件生成的位置 -->
        <sqlMapGenerator targetPackage="mapper" targetProject=".\src\main\resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

        <!-- 指定dao接口生成的位置，mapper接口 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.dao" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>


        <!-- table指定每個表的生成策略 -->
        <table tableName="t_user" domainObjectName="User"></table>
    </context>
</generatorConfiguration>

 

然后在com.test包下創建逆向生成的啟動java文件

 

 啟動文件內容看下面的代碼

package com.test; import java.io.File; import java.util.ArrayList; import java.util.List; import org.mybatis.generator.api.MyBatisGenerator; import org.mybatis.generator.config.Configuration; import org.mybatis.generator.config.xml.ConfigurationParser; import org.mybatis.generator.internal.DefaultShellCallback; public class Test { public static void main(String[] args) throws Exception { List<String> warnings = new ArrayList<String>(); boolean overwrite = true; // 配置文件路徑切記寫對
        File configFile = new File("src/main/resources/mbg.xml"); ConfigurationParser cp = new ConfigurationParser(warnings); Configuration config = cp.parseConfiguration(configFile); DefaultShellCallback callback = new DefaultShellCallback(overwrite); MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings); myBatisGenerator.generate(null); } }

 

 配置文件寫完之后直接運行此配置文件，就可以生成代碼，下面附上生成之后的效果（運行完之后，刷新項目 就可以看到生成的文件）

 

 文章中涉及到的配置文件，啟動類等都可以在mybatis官網找到。

如有錯誤，請大神指導。

 

 

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