SpringBoot+Mybatis-Generator自動生成

原文鏈接

 

 

1、版本

Spring Boot 1.5.10

mybatis-generator-core 1.3.5

mybatis-generator-maven-plugin 1.3.5

 

2、項目目錄結構

 

3、配置pom.xml

<?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.baixin</groupId>
    <artifactId>pms</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
 
    <name>pms</name>
    <description>Demo project for Spring Boot</description>
 
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.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>
        <!-- 連接池 -->
        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
        </dependency>
        <!-- 數據庫 -->
        <dependency><!-- 分頁插件 -->
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.5</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
 
        <!-- spring-boot -->
        <dependency><!-- 熱部署 -->
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional><!-- true：依賴不會傳遞 -->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <exclusions>
                <!-- 把tomcat-jdbc連接池排除掉，這樣spring-boot就會尋找是否有HikariCP可用 -->
                <exclusion>
                    <groupId>org.apache.tomcat</groupId>
                    <artifactId>tomcat-jdbc</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!-- generator 工具配置文件的位置 -->
                    <configurationFile>src/main/resources/mybatis/generatorConfig.xml</configurationFile>
                    <!--允許移動生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆蓋 -->
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
 
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork> <!-- fork=true,用於明確表示編譯版本配置的可用 -->
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

 

4、配置自動生成配置文件generatorConfig.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="MySQL2Tables" targetRuntime="MyBatis3"
        defaultModelType="flat">
        <commentGenerator>
            <property name="suppressDate" value="true" />
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!--數據庫鏈接地址賬號密碼 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
            connectionURL="jdbc:mysql://192.168.1.180:3306/pms?useSSL=false"
            userId="root" password="123456">
        </jdbcConnection>
 
        <!-- true：使用BigDecimal對應DECIMAL和 NUMERIC數據類型 -->
        <!-- false：默認, scale>0;length>18：使用BigDecimal; scale=0;length[10,18]：使用Long; 
            scale=0;length[5,9]：使用Integer; scale=0;length<5：使用Short; -->
        <javaTypeResolver
            type="org.mybatis.generator.internal.types.JavaTypeResolverDefaultImpl">
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>
 
        <!--生成Model類存放位置 -->
        <javaModelGenerator targetPackage="com.baixin.pms.entity"
            targetProject="src/main/java">
            <!-- 在targetPackage的基礎上，根據數據庫的schema再生成一層package，最終生成的類放在這個package下，默認為false -->
            <property name="enableSubPackages" value="true" />
            <!-- 設置是否在getter方法中，對String類型字段調用trim()方法 -->
            <property name="trimStrings" value="true" />
 
            <!-- for MyBatis3/MyBatis3Simple 自動為每一個生成的類創建一個構造方法，構造方法包含了所有的field；而不是使用setter； -->
            <property name="constructorBased" value="false" />
            <!-- for MyBatis3/MyBatis3Simple 是否創建一個不可變的類，如果為true， 那么MBG會創建一個沒有setter方法的類，取而代之的是類似constructorBased的類 -->
            <property name="immutable" value="false" />
        </javaModelGenerator>
 
        <!--生成映射文件存放位置 -->
        <sqlMapGenerator targetPackage="mappers"
            targetProject="src/main/resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>
 
        <!--生成Dao類存放位置 -->
        <javaClientGenerator type="XMLMAPPER"
            targetPackage="com.baixin.pms.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>
 
        <!--生成對應表及類名 -->
        <table tableName="%" enableCountByExample="false"
            enableUpdateByExample="false" enableDeleteByExample="false"
            enableSelectByExample="false" selectByExampleQueryId="false">
            <property name="useActualColumnNames" value="true" />
            <!-- 需要插入時返回主鍵值，請將此屬性打開，column值為主鍵的列明 -->
            <generatedKey column="id" sqlStatement="MySql" identity="true" />
        </table>
    </context>
</generatorConfiguration>

 

5、創建自動生成啟動類

package com.baixin.pms.config.util;
 
import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
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.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;
 
public class MyBatisGeneratorUtil {
    public static void main(String[] args) {
        List<String> warnings = new ArrayList<String>();
        boolean overwrite = true;
        String genCfg = "/generatorConfig.xml";
        File configFile = new File(MyBatisGeneratorUtil.class.getResource(genCfg).getFile());
        ConfigurationParser cp = new ConfigurationParser(warnings);
        Configuration config = null;
        try {
            config = cp.parseConfiguration(configFile);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (XMLParserException e) {
            e.printStackTrace();
        }
        DefaultShellCallback callback = new DefaultShellCallback(overwrite);
        MyBatisGenerator myBatisGenerator = null;
        try {
            myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
        } catch (InvalidConfigurationException e) {
            e.printStackTrace();
        }
        try {
            myBatisGenerator.generate(null);
        } catch (SQLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

 

Run As Java Application

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