最近将springboot相关的项目都迁移到了gradle,通过gradle进行编译，这个实现过程比较曲折。由于gradle的后向兼容一直很差， 这导致如果是最新版本的gradle7.1.1版本，很可能之前的build.gradle中的配置无法使用。 这里需要说明一下就是，gradle环境下，相关的插件都是采用ant的方式来使用。
1. build.gradle配置
完整配置如下：
代码语言：javascript复制plugins {
id 'org.springframework.boot' version '2.5.3'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
id 'org.springframework.experimental.aot' version '0.10.2-SNAPSHOT'
id 'org.graalvm.buildtools.native' version '0.9.1'
# 增加gradle Mybatisgenerator插件
id 'com.arenagod.gradle.MybatisGenerator' version '1.4'
}
group = 'com.dhb'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
# 导入MybatisGenerator插件
apply plugin: "com.arenagod.gradle.MybatisGenerator"
configurations {
compileOnly {
extendsFrom annotationProcessor
}
# 增加自定义task
mybatisGenerator
}
repositories {
maven { url 'https://repo.spring.io/snapshot' }
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter'
compileOnly 'org.projectlombok:lombok'
developmentOnly 'org.springframework.boot:spring-boot-devtools'
annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
# 自定义mybatisGenerator task需要的包
mybatisGenerator 'org.mybatis.generator:mybatis-generator-core:1.3.5'
mybatisGenerator 'tk.mybatis:mapper:3.3.9'
mybatisGenerator 'mysql:mysql-connector-java:6.0.6'
implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:2.2.0'
implementation 'io.netty:netty-all:4.1.56.Final'
implementation 'com.google.guava:guava:23.0'
implementation 'org.apache.httpcomponents:httpclient:4.5.13'
implementation 'org.apache.httpcomponents:httpcore:4.4.14'
implementation 'org.apache.httpcomponents:httpcore-nio:4.4.14'
implementation 'org.apache.httpcomponents:httpasyncclient:4.1.4'
implementation 'com.squareup.okhttp3:okhttp:4.9.1'
implementation 'mysql:mysql-connector-java:6.0.6'
implementation 'com.zaxxer:HikariCP:4.0.3'
# generator-core包
compileOnly 'org.mybatis.generator:mybatis-generator-core:1.3.5'
}
#自定义的task mybatisGenerate
task mybatisGenerate {
ant.taskdef(
name: 'mbgenerator',
classname: 'org.mybatis.generator.ant.GeneratorAntTask',
classpath: configurations.mybatisGenerator.asPath
)
ant.mbgenerator(overwrite: true,
configfile: 'src/main/resources/generator/generatorConfig.xml', verbose: true)
}
test {
useJUnitPlatform()
}
bootBuildImage {
builder = 'paketobuildpacks/builder:tiny'
environment = ['BP_NATIVE_IMAGE': 'true']
}上述配置中，通过自定义的task mybatisGenerate来执行ant。 关键的配置src/main/resources/generator/generatorConfig.xml。
2. generatorConfig.xml配置
在generatorConfig.xml中，对需要generator生成的表进行配置，完整配置如下：
代码语言：javascript复制<?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>
<!-- 设置mysql驱动路径 -->
<context id="ParaGenconfig" targetRuntime="MyBatis3"
defaultModelType="hierarchical">
<property name="autoDelimitKeywords" value="true" />
<property name="beginningDelimiter" value="`" />
<property name="endingDelimiter" value="`" />
<plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin" />
<plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
<plugin type="org.mybatis.generator.plugins.CaseInsensitiveLikePlugin" />
<commentGenerator>
<property name="suppressAllComments" value="true" />
<property name="suppressDate" value="true" />
</commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://192.168.162.49:3306/gts?useSSL=false"
userId="gts" password="mysql">
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="true" />
</javaTypeResolver>
<javaModelGenerator targetPackage="com.dhb.gts.javacourse.week5.entity" targetProject="src/main/java" />
<sqlMapGenerator targetPackage="com.dhb.gts.javacourse.week5.mybatis" targetProject="src/main/java">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<javaClientGenerator type="ANNOTATEDMAPPER"
targetPackage="com.dhb.gts.javacourse.week5.mapper" targetProject="src/main/java"
implementationPackage="com.dhb.gts.javacourse.week5.mapper.impl">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<table tableName="users" domainObjectName="Users"></table>
</context>
</generatorConfiguration>上述为generatorConfig.xml的完整配置。
3.执行generator
在右侧的Gradle -> other -> mybatisGeneratic 点击运行即可执行。
这样就生成了mybatis的相关代码。
在整个过程中，需要注意的就是gradle的版本问题。可以修改项目根目录下gradle 的wrapper中的gradle-wrapper.properties 。将distributionUrl中的版本改为指定的版本，本文中版本为 6.9.1 。
