打开idea->new->project
1.选择Spring initializr,其他默认，点击下一步
2.项目配置
Group：对应pom文件中的groupId，项目组织的唯一标识，对应Java包的结构
Artifact：对应pom文件的artifactId，项目唯一标识，对应项目名称
Type：Maven构建的，选择第一个Maven Project
Packaging：打包类型，打包成Jar文件
Java Version：jdk版本，选择1.8
Language：开发语言，选择Java
Version：项目版本，对应pom文件的version
name:项目名称
Description：项目描述，对应pom文件的description
Package：包名
3.选择spring boot版本
4.填写项目名称，项目存放目录，点击Finish完成
5.删除下面三个无关的文件
6.最后的项目结构
查看自动生成的pom.xml文件
<?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.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
7.新建一个controller测试
@RestController
public class HelloController {
@RequestMapping(value = "/hello")
public String hello(){
return "hello spring boot";
}
}
@RestController的意思就是controller里面的方法都一json格式输出
8.启动DemoApplication
9.到浏览器中输入http://localhost:8080/hello
至此一个spring boot项目创建完毕
10.接下来在pom.xml文件中加入mysql，mybatis和mybaits generator依赖
<?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.dwzzb</groupId>
<artifactId>dwzzb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>dwzzb</name>
<description>dwzzb web project</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- mybatis 代码生成器插件 -->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
11.在配置文件application.properties中加入数据库的配置信息
spring.datasource.url=jdbc:mysql://localhost:3306/dbname
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
12.创建generatorConfig.xml文件
<?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>
<!--导入属性配置-->
<properties resource="application.properties"></properties>
<!--指定特定数据库的jdbc驱动jar包的位置-->
<!--<classPathEntry location="${jdbc.driverLocation}"/>-->
<context id="default" targetRuntime="MyBatis3">
<!-- optional，旨在创建class时，对注释进行控制 -->
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--jdbc的数据库连接 -->
<jdbcConnection
driverClass="${spring.datasource.driver-class-name}"
connectionURL="${spring.datasource.url}"
userId="${spring.datasource.username}"
password="${spring.datasource.password}">
</jdbcConnection>
<!-- 非必需，类型处理器，在数据库类型和java类型之间的转换控制-->
<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- Model模型生成器,用来生成含有主键key的类，记录类 以及查询Example类
targetPackage 指定生成的model生成所在的包名
targetProject 指定在该项目下所在的路径
-->
<javaModelGenerator targetPackage="com.dwzzb.entities"
targetProject="src/main/java">
<!-- 是否允许子包，即targetPackage.schemaName.tableName -->
<property name="enableSubPackages" value="false"/>
<!-- 是否对model添加 构造函数 -->
<property name="constructorBased" value="true"/>
<!-- 是否对类CHAR类型的列的数据进行trim操作 -->
<property name="trimStrings" value="true"/>
<!-- 建立的Model对象是否 不可改变 即生成的Model对象不会有 setter方法，只有构造方法 -->
<property name="immutable" value="false"/>
</javaModelGenerator>
<!--Mapper映射文件生成所在的目录 为每一个数据库的表生成对应的SqlMap文件 -->
<sqlMapGenerator targetPackage="mapper"
targetProject="src/main/resources">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
-->
<javaClientGenerator targetPackage="com.dwzzb.dao"
targetProject="src/main/java" type="XMLMAPPER">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>
<table tableName="advertisement" domainObjectName="Advertisement"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>
注意注释的部分<classPathEntry location="${jdbc.driverLocation}"/>，这里原本是需要数据库驱动的绝对地址，有些配置是这样写的
<!-- 指定mysql的驱动包 -->
<classPathEntry location="D:\m2\mysql\mysql-connector-java\5.1.22/mysql-connector-java-5.1.22.jar" />
这边已经把对jar包的依赖的classPathEntry配置移到pom中，上面有完整的pom配置。
13.添加一个“RUN运行”，使用maven运行mybatis-generator-maven-plugin插件
点击菜单run中的Edit Configurations，然后点“+”，添加maven，设置如下
14.在run菜单中选择generator
点击绿色小箭头运行
"C:\Program Files\Java\jdk1.8.0_111\bin\java" -Dmaven.multiModuleProjectDirectory=D:\Project\JavaWeb\dwzzb_backend "-Dmaven.home=D:\Program_Files\JetBrains\IntelliJ IDEA 2017.1.2\plugins\maven\lib\maven3" "-Dclassworlds.conf=D:\Program_Files\JetBrains\IntelliJ IDEA 2017.1.2\plugins\maven\lib\maven3\bin\m2.conf" "-javaagent:D:\Program_Files\JetBrains\IntelliJ IDEA 2017.1.2\lib\idea_rt.jar=60424:D:\Program_Files\JetBrains\IntelliJ IDEA 2017.1.2\bin" -Dfile.encoding=UTF-8 -classpath "D:\Program_Files\JetBrains\IntelliJ IDEA 2017.1.2\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar" org.codehaus.classworlds.Launcher -Didea.version=2017.1.2 -s D:\Program_Files\apache-maven-3.5.0\conf\maven-repo-settings-ali.xml mybatis-generator:generate -e
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
Downloading: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-maven-plugin/1.5.6.RELEASE/spring-boot-maven-plugin-1.5.6.RELEASE.pom
Downloaded: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-maven-plugin/1.5.6.RELEASE/spring-boot-maven-plugin-1.5.6.RELEASE.pom (0 B at 0.0 KB/sec)
Downloading: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-tools/1.5.6.RELEASE/spring-boot-tools-1.5.6.RELEASE.pom
Downloaded: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-tools/1.5.6.RELEASE/spring-boot-tools-1.5.6.RELEASE.pom (0 B at 0.0 KB/sec)
Downloading: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-maven-plugin/1.5.6.RELEASE/spring-boot-maven-plugin-1.5.6.RELEASE.jar
Downloaded: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-maven-plugin/1.5.6.RELEASE/spring-boot-maven-plugin-1.5.6.RELEASE.jar (0 B at 0.0 KB/sec)
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building demo 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- mybatis-generator-maven-plugin:1.3.2:generate (default-cli) @ dwzzb ---
[INFO] Connecting to the Database
[INFO] Introspecting table advertisement
log4j:WARN No appenders could be found for logger (org.mybatis.generator.internal.db.DatabaseIntrospector).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[INFO] Generating Record class for table advertisement
[INFO] Generating Mapper Interface for table advertisement
[INFO] Generating SQL Map for table advertisement
[INFO] Saving file AdvertisementMapper.xml
[INFO] Saving file Advertisement.java
[INFO] Saving file AdvertisementMapper.java
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.850 s
[INFO] Finished at: 2017-08-12T08:55:22+08:00
[INFO] Final Memory: 15M/166M
[INFO] ------------------------------------------------------------------------
Process finished with exit code 0
看到Build success之后，你会看到generator帮你生成好了dao，model和mapper文件
image.png
完！
