Spring boot+Mybatis plus整合+Mybatis plus逆向工程
阿新 • • 發佈：2018-12-21
環境引數
| jdk | 1.8 |
|---|---|
| 資料庫 | Mysql5.5+ |
| IDE | IDEA2018.2 |
| Maven | 3.3.9 |
| Spring boot | 2.1.0.RELEASE |
| Mybatis plus | 3.0.5 |
1.建立Spring Initializr專案
2.新增進pom.xml所需要的依賴
<?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.lj</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>2.1.0.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.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatisplus-spring-boot-starter</artifactId> <version>1.0.4</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- velocity 模板引擎, 預設 --> <dependency> <groupId>org.apache.velocity</groupId> <artifactId>velocity-engine-core</artifactId> <version>2.0</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.0.5</version> </dependency> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.20</version> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus --> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus</artifactId> <version>3.0.5</version> </dependency> <!-- freemarker 模板引擎 --> <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker --> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.23</version> </dependency> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>6.0.6</version> </dependency> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter-api</artifactId> <version>RELEASE</version> <scope>compile</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
3.Mybatis plus程式碼生成器
建立MysqlGenerator類
package com.lj.generator; import com.baomidou.mybatisplus.annotation.DbType; import com.baomidou.mybatisplus.annotation.IdType; import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException; import com.baomidou.mybatisplus.core.toolkit.StringPool; import com.baomidou.mybatisplus.core.toolkit.StringUtils; import com.baomidou.mybatisplus.generator.AutoGenerator; import com.baomidou.mybatisplus.generator.InjectionConfig; import com.baomidou.mybatisplus.generator.config.*; import com.baomidou.mybatisplus.generator.config.po.TableInfo; import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy; import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine; import java.util.ArrayList; import java.util.List; import java.util.Scanner; // 演示例子，執行 main 方法控制檯輸入模組表名回車自動生成對應專案目錄中 public class MysqlGenerator { /** * <p> * 讀取控制檯內容 * </p> */ public static String scanner(String tip) { Scanner scanner = new Scanner(System.in); StringBuilder help = new StringBuilder(); help.append("請輸入" + tip + "："); System.out.println(help.toString()); if (scanner.hasNext()) { String ipt = scanner.next(); if (StringUtils.isNotEmpty(ipt)) { return ipt; } } throw new MybatisPlusException("請輸入正確的" + tip + "！"); } public static void main(String[] args) { // 程式碼生成器 AutoGenerator mpg = new AutoGenerator(); // 全域性配置 GlobalConfig gc = new GlobalConfig(); String projectPath = System.getProperty("user.dir"); //outputDir：生成檔案的輸出目錄，預設值：D 盤根目錄 gc.setOutputDir(projectPath + "/src/main/java"); //IdType設定主鍵生成策略，預設值null gc.setIdType(IdType.UUID); //Author設定作者 gc.setAuthor("LuJ"); //Open：是否開啟輸出目錄 gc.setOpen(false); mpg.setGlobalConfig(gc); // 資料來源配置 DataSourceConfig dsc = new DataSourceConfig(); dsc.setUrl("jdbc:mysql://localhost:3306/student?serverTimezone=UTC&&characterEncoding=utf-8&useSSL=false"); // dsc.setSchemaName("public"); dsc.setDriverName("com.mysql.cj.jdbc.Driver"); dsc.setUsername("root"); dsc.setPassword("1234"); //設定資料庫型別，預設MYSQL dsc.setDbType(DbType.MYSQL); mpg.setDataSource(dsc); // 包配置 PackageConfig pc = new PackageConfig(); pc.setModuleName(scanner("模組名")); //父包名。如果為空，將下面子包名必須寫全部， 否則就只需寫子包名 pc.setParent("com.lj"); mpg.setPackageInfo(pc); //模板配置 // 自定義配置 InjectionConfig cfg = new InjectionConfig() { @Override public void initMap() { // to do nothing } }; List<FileOutConfig> focList = new ArrayList<>(); focList.add(new FileOutConfig("/templates/mapper.xml.ftl") { @Override public String outputFile(TableInfo tableInfo) { // 自定義輸入檔名稱 return projectPath + "/src/main/resources/mapper/" + pc.getModuleName() + "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML; } }); cfg.setFileOutConfigList(focList); mpg.setCfg(cfg); mpg.setTemplate(new TemplateConfig().setXml(null)); // 策略配置 StrategyConfig strategy = new StrategyConfig(); //設定命名格式 strategy.setNaming(NamingStrategy.underline_to_camel); //【實體】是否為lombok模型（預設 false） strategy.setEntityLombokModel(false); //生成 @RestController 控制器 strategy.setRestControllerStyle(true); strategy.setInclude(scanner("表名")); //駝峰轉連字元 strategy.setControllerMappingHyphenStyle(true); //表名字首 strategy.setTablePrefix(pc.getModuleName() + "_"); //是否生成實體時，生成欄位註解 strategy.entityTableFieldAnnotationEnable(true); //設定自定義繼承的Entity類全稱，帶包名 // strategy.setSuperEntityClass("com.lj.common.BaseEntit"); //設定自定義繼承的Controller類全稱，帶包名 // strategy.setSuperControllerClass("com.lj.common.BaseController"); //設定自定義基礎的Entity類，公共欄位 // strategy.setSuperEntityColumns("id"); mpg.setStrategy(strategy); mpg.setTemplateEngine(new FreemarkerTemplateEngine()); mpg.execute(); } }
4.application.yml配置資訊
# DataSource Config spring: datasource: driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://localhost:3306/student?serverTimezone=UTC&&characterEncoding=utf-8&useSSL=false username: root password: 1234 #mybatis-plus: # mapper-locations: classpath:mapper/*.xml # typeAliasesPackage: com.lj.demo.entity # configuration: # map-underscore-to-camel-case: true #使用駝峰法對映屬性 # global-config: # #主鍵型別 0:"資料庫ID自增", 1:"使用者輸入ID",2:"全域性唯一ID (數字型別唯一ID)", 3:"全域性唯一ID UUID"; # id-type: 0 # #欄位策略 0:"忽略判斷",1:"非 NULL 判斷"),2:"非空判斷" # field-strategy: 2 # #駝峰下劃線轉換 # db-column-underline: true # #重新整理mapper 除錯神器 # refresh-mapper: true # #資料庫大寫下劃線轉換 # #capital-mode: true # #序列介面實現類配置 # #key-generator: com.baomidou.springboot.xxx # #邏輯刪除配置 # #logic-delete-value: 0 # #logic-not-delete-value: 1 # #自定義填充策略介面實現 # #meta-object-handler: com.baomidou.springboot.xxx # #自定義SQL注入器 # #sql-injector: com.baomidou.springboot.xxx
5.執行MysqlGenerator
執行後自動生成對應Entity、Mapper、Mapper XML、Service、Controller 等各個模組的程式碼，以下是路徑圖
7.測試類DemoApplicationTest
package com.lj.demo;
import com.lj.demo.entity.Stu;
import com.lj.demo.mapper.StuMapper;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.ArrayList;
import java.util.List;
@RunWith(SpringRunner.class)
@SpringBootTest
@MapperScan("com.lj.demo.mapper")
public class DemoApplicationTests {
@Autowired
StuMapper stuMapper;
@Test
public void contextLoads() {
List<Stu> stuList = new ArrayList<>();
Stu stu = new Stu("join","2",40,"18855544444");
stuMapper.insert(stu);
// stuList.forEach(System.out::println);
// Assert.assertEquals(0, stuList.size());
}
}
測試結果：
