打開idea->new->project
1.選擇Spring initializr,其他默認(rèn)，點(diǎn)擊下一步
2.項(xiàng)目配置
Group：對(duì)應(yīng)pom文件中的groupId，項(xiàng)目組織的唯一標(biāo)識(shí)，對(duì)應(yīng)Java包的結(jié)構(gòu)
Artifact：對(duì)應(yīng)pom文件的artifactId，項(xiàng)目唯一標(biāo)識(shí)，對(duì)應(yīng)項(xiàng)目名稱
Type：Maven構(gòu)建的，選擇第一個(gè)Maven Project
Packaging：打包類型，打包成Jar文件
Java Version：jdk版本，選擇1.8
Language：開發(fā)語言，選擇Java
Version：項(xiàng)目版本，對(duì)應(yīng)pom文件的version
name:項(xiàng)目名稱
Description：項(xiàng)目描述，對(duì)應(yīng)pom文件的description
Package：包名
3.選擇spring boot版本
4.填寫項(xiàng)目名稱，項(xiàng)目存放目錄，點(diǎn)擊Finish完成
5.刪除下面三個(gè)無關(guān)的文件
6.最后的項(xiàng)目結(jié)構(gòu)
查看自動(dòng)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.新建一個(gè)controller測(cè)試
@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格式輸出
8.啟動(dòng)DemoApplication
9.到瀏覽器中輸入http://localhost:8080/hello
至此一個(gè)spring boot項(xiàng)目創(chuàng)建完畢
10.接下來在pom.xml文件中加入mysql，mybatis和mybaits generator依賴
<?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 代碼生成器插件 -->
<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中加入數(shù)據(jù)庫的配置信息
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.創(chuàng)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>
<!--導(dǎo)入屬性配置-->
<properties resource="application.properties"></properties>
<!--指定特定數(shù)據(jù)庫的jdbc驅(qū)動(dòng)jar包的位置-->
<!--<classPathEntry location="${jdbc.driverLocation}"/>-->
<context id="default" targetRuntime="MyBatis3">
<!-- optional，旨在創(chuàng)建class時(shí)，對(duì)注釋進(jìn)行控制 -->
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--jdbc的數(shù)據(jù)庫連接 -->
<jdbcConnection
driverClass="${spring.datasource.driver-class-name}"
connectionURL="${spring.datasource.url}"
userId="${spring.datasource.username}"
password="${spring.datasource.password}">
</jdbcConnection>
<!-- 非必需，類型處理器，在數(shù)據(jù)庫類型和java類型之間的轉(zhuǎn)換控制-->
<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- Model模型生成器,用來生成含有主鍵key的類，記錄類 以及查詢Example類
targetPackage 指定生成的model生成所在的包名
targetProject 指定在該項(xiàng)目下所在的路徑
-->
<javaModelGenerator targetPackage="com.dwzzb.entities"
targetProject="src/main/java">
<!-- 是否允許子包，即targetPackage.schemaName.tableName -->
<property name="enableSubPackages" value="false"/>
<!-- 是否對(duì)model添加 構(gòu)造函數(shù) -->
<property name="constructorBased" value="true"/>
<!-- 是否對(duì)類CHAR類型的列的數(shù)據(jù)進(jìn)行trim操作 -->
<property name="trimStrings" value="true"/>
<!-- 建立的Model對(duì)象是否 不可改變 即生成的Model對(duì)象不會(huì)有 setter方法，只有構(gòu)造方法 -->
<property name="immutable" value="false"/>
</javaModelGenerator>
<!--Mapper映射文件生成所在的目錄 為每一個(gè)數(shù)據(jù)庫的表生成對(duì)應(yīng)的SqlMap文件 -->
<sqlMapGenerator targetPackage="mapper"
targetProject="src/main/resources">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 客戶端代碼，生成易于使用的針對(duì)Model對(duì)象和XML配置文件 的代碼
type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper對(duì)象
type="MIXEDMAPPER",生成基于注解的Java Model 和相應(yīng)的Mapper對(duì)象
type="XMLMAPPER",生成SQLMap XML文件和獨(dú)立的Mapper接口
-->
<javaClientGenerator targetPackage="com.dwzzb.dao"
targetProject="src/main/java" type="XMLMAPPER">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>
<table tableName="advertisement" domainObjectName="Advertisement"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>
注意注釋的部分<classPathEntry location="${jdbc.driverLocation}"/>，這里原本是需要數(shù)據(jù)庫驅(qū)動(dòng)的絕對(duì)地址，有些配置是這樣寫的
<!-- 指定mysql的驅(qū)動(dòng)包 -->
<classPathEntry location="D:\m2\mysql\mysql-connector-java\5.1.22/mysql-connector-java-5.1.22.jar" />
這邊已經(jīng)把對(duì)jar包的依賴的classPathEntry配置移到pom中，上面有完整的pom配置。
13.添加一個(gè)“RUN運(yùn)行”，使用maven運(yùn)行mybatis-generator-maven-plugin插件
點(diǎn)擊菜單run中的Edit Configurations，然后點(diǎn)“+”，添加maven，設(shè)置如下
14.在run菜單中選擇generator
點(diǎn)擊綠色小箭頭運(yùn)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，你會(huì)看到generator幫你生成好了dao，model和mapper文件
image.png
完！
