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SpringBoot+mabatis:逆向工程

 mybatis+SpringBoot逆向工程

準備:

1. mysql資料庫裡有建好的表

2.相關的開發環境

步驟:

1. 新建Maven專案

2. 在pom.xml裡新增相關依賴和bulid外掛

3. 編寫mybatis逆向工程的配置檔案 generatorConfig.xml

4. maven build

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.rambo</groupId>
  <artifactId>mbg</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <!-- 設定編碼和Java版本 -->
  <properties>
	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	<java.version>1.8</java.version>
  </properties>
  <!-- 設定頂層SpringBoot版本號 -->
	<dependencyManagement>
		<dependencies>
			<dependency>
				<!-- Import dependency management from Spring Boot -->
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-dependencies</artifactId>
				<version>2.0.1.RELEASE</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>
	
	<dependencies>
		<!-- 測試模組 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<!-- 緩衝模組 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-cache</artifactId>
		</dependency>
		<!-- jdbc模組 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<!-- mybatis模組 -->
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.3.2</version>
		</dependency>
		<!-- mysql模組 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>

	</dependencies>

	<build>
		<plugins>
			<!-- SpringBoot外掛 -->
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<!-- mybatis逆向工程外掛 -->
			<plugin>
				<groupId>org.mybatis.generator</groupId>
				<artifactId>mybatis-generator-maven-plugin</artifactId>
				<version>1.3.5</version>
				<configuration>
					<configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
					<verbose>true</verbose>
					<overwrite>true</overwrite>
				</configuration>
				<dependencies>
					<dependency>
						<groupId>mysql</groupId>
						<artifactId>mysql-connector-java</artifactId>
						<version>5.1.46</version>
					</dependency>
				</dependencies>
			</plugin>
		</plugins>
	</build>
	
</project>

generatorConfig.xml(放在src/main/resources資料夾下)

<?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>
		<!--執行generator外掛生成檔案的命令: call mvn mybatis-generator:generate -e -->
	    <!-- 引入配置檔案 -->
	    <!-- <properties resource="mybatis-generator/mybatisGeneratorinit.properties"/> -->
	    <!--classPathEntry:資料庫的JDBC驅動,換成你自己的驅動位置 可選 -->
	    <!--<classPathEntry location="D:\generator_mybatis\mysql-connector-java-5.1.24-bin.jar" /> -->
	    
	<!-- 一個數據庫一個context -->
    <!--defaultModelType="flat" 大資料欄位,不分表 -->    
	<context id="context1">
		<!-- 自動識別資料庫關鍵字,預設false,如果設定為true,根據SqlReservedWords中定義的關鍵字列表;
        一般保留預設值,遇到資料庫關鍵字(Java關鍵字),使用columnOverride覆蓋 -->
        <property name="autoDelimitKeywords" value="true" />
        <!-- 生成的Java檔案的編碼 -->
        <property name="javaFileEncoding" value="utf-8" />
        <!-- beginningDelimiter和endingDelimiter:指明資料庫的用於標記資料庫物件名的符號,比如ORACLE就是雙引號,MYSQL預設是`反引號; -->
        <property name="beginningDelimiter" value="`" />
        <property name="endingDelimiter" value="`" />
        
        <!-- 格式化java程式碼 -->
        <property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
        <!-- 格式化XML程式碼 -->
        <property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
        <plugin type="org.mybatis.generator.plugins.SerializablePlugin" />

        <plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
        
        
		<commentGenerator>
			<property name="suppressAllComments" value="true"/><!-- 是否取消註釋 -->
            <property name="suppressDate" value="true" /> <!-- 是否生成註釋代時間戳-->
		</commentGenerator>
		
		<!-- jdbc連線 -->
		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
			connectionURL="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=utf-8"
			userId="root" password="123456">
		</jdbcConnection>
		<!-- 型別轉換 -->
		<javaTypeResolver>
			<!-- 是否使用bigDecimal, false可自動轉化以下型別(Long, Integer, Short, etc.) -->
			<property name="forceBigDecimals" value="false" />
		</javaTypeResolver>
		<!-- 生成的實體包路徑,包含實體類和Example類(用來定製sql的) -->
		<javaModelGenerator targetPackage="com.rambo.domain"
			targetProject="src/main/java" />
		<!-- 生成的Mapper.xml路徑 -->
		<sqlMapGenerator targetPackage="mybatis-mapping"
			targetProject="src/main/resources" />
		<!-- 生成的mapper類 -->
		<javaClientGenerator targetPackage="com.rambo.dao"
			targetProject="src/main/java" type="XMLMAPPER" />
		
		<!-- table可以有多個,每個資料庫中的表都可以寫一個table,tableName表示要匹配的資料庫表,-->
		<!-- 也可以在tableName屬性中通過使用%萬用字元來匹配所有資料庫表,只有匹配的表才會自動生成檔案 -->
		<table schema="" tableName="tb_user" domainObjectName="User"
			enableCountByExample="true" enableUpdateByExample="true"
			enableDeleteByExample="true" enableSelectByExample="true"
			selectByExampleQueryId="true">
			<property name="useActualColumnNames" value="false" />
			<generatedKey column="id" sqlStatement="JDBC" identity="true" />
		</table>

	</context>
</generatorConfiguration>