Initial commit

.gitignore

+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**
+!**/src/test/**
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+
+### VS Code ###
+.vscode/

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.14.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.matrix</groupId>
+    <artifactId>mybatis-mutil-db</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>mybatis-mutil-db</name>
+    <description>Demo project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </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>
+
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
+            <version>3.3.1.tmp</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-generator</artifactId>
+            <version>3.3.1.tmp</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-freemarker</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </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>

src/main/java/com/matrix/md/MybatisMutilDbApplication.java

+package com.matrix.md;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@MapperScan("com.matrix.md.sys.mapper")
+public class MybatisMutilDbApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(MybatisMutilDbApplication.class, args);
+    }
+
+}

src/main/java/com/matrix/md/sys/controller/UserController.java

+package com.matrix.md.sys.controller;
+
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import com.matrix.md.sys.entity.User;
+import com.matrix.md.sys.mapper.UserMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import org.springframework.stereotype.Controller;
+
+import java.util.List;
+
+/**
+ * <p>
+ * 前端控制器
+ * </p>
+ *
+ * @author matrix
+ * @since 2020-05-11
+ */
+@Controller
+@RequestMapping("/sys/user")
+public class UserController {
+
+    @Autowired
+    private UserMapper userMapper;
+
+    @GetMapping
+    public ResponseEntity findUsers() {
+        LambdaQueryWrapper<User> query = Wrappers.lambdaQuery();
+        query.ge(User::getAge, 18);
+        List<User> userList = userMapper.selectList(query);
+        return ResponseEntity.ok(userList);
+
+    }
+}

src/main/java/com/matrix/md/sys/entity/User.java

+package com.matrix.md.sys.entity;
+
+import java.io.Serializable;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author matrix
+ * @since 2020-05-11
+ */
+@Data
+@EqualsAndHashCode(callSuper = false)
+@Accessors(chain = true)
+public class User implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String name;
+
+    private Integer age;
+
+
+}

src/main/java/com/matrix/md/sys/http/users.http

+GET http://localhost:8080/sys/user

src/main/java/com/matrix/md/sys/mapper/UserMapper.java

+package com.matrix.md.sys.mapper;
+
+import com.matrix.md.sys.entity.User;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author matrix
+ * @since 2020-05-11
+ */
+public interface UserMapper extends BaseMapper<User> {
+
+}

src/main/java/com/matrix/md/sys/service/IUserService.java

+package com.matrix.md.sys.service;
+
+import com.matrix.md.sys.entity.User;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+ * <p>
+ *  服务类
+ * </p>
+ *
+ * @author matrix
+ * @since 2020-05-11
+ */
+public interface IUserService extends IService<User> {
+
+}

src/main/java/com/matrix/md/sys/service/impl/UserServiceImpl.java

+package com.matrix.md.sys.service.impl;
+
+import com.matrix.md.sys.entity.User;
+import com.matrix.md.sys.mapper.UserMapper;
+import com.matrix.md.sys.service.IUserService;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.stereotype.Service;
+
+/**
+ * <p>
+ *  服务实现类
+ * </p>
+ *
+ * @author matrix
+ * @since 2020-05-11
+ */
+@Service
+public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
+
+}

src/main/java/com/matrix/md/utils/CodeGenerator.java

+package com.matrix.md.utils;
+
+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;
+
+public class CodeGenerator {
+
+    /**
+     * <p>
+     * 读取控制台内容
+     * </p>
+     */
+    public static String scanner(String tip) {
+        Scanner scanner = new Scanner(System.in);
+        StringBuilder help = new StringBuilder();
+        help.append("请输入" + tip + "：");
+        System.out.println(help.toString());
+        if (scanner.hasNext()) {
+            String ipt = scanner.next();
+            if (StringUtils.isNotEmpty(ipt)) {
+                return ipt;
+            }
+        }
+        throw new MybatisPlusException("请输入正确的" + tip + "！");
+    }
+
+    /**
+     * RUN THIS
+     */
+    public static void main(String[] args) {
+        // 代码生成器
+        AutoGenerator mpg = new AutoGenerator();
+
+        // 全局配置
+        GlobalConfig gc = new GlobalConfig();
+        String projectPath = System.getProperty("user.dir");
+        gc.setOutputDir(projectPath + "/src/main/java");
+        gc.setAuthor("matrix");
+        gc.setOpen(false);
+        mpg.setGlobalConfig(gc);
+
+        // 数据源配置
+        DataSourceConfig dsc = new DataSourceConfig();
+        dsc.setUrl("jdbc:mysql://localhost:3306/md?serverTimezone=GMT%2B8");
+        // dsc.setSchemaName("public");
+        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
+        dsc.setUsername("root");
+        dsc.setPassword("ldf3291369");
+        mpg.setDataSource(dsc);
+
+        // 包配置
+        PackageConfig pc = new PackageConfig();
+        pc.setModuleName(scanner("模块名"));
+        pc.setParent("com.matrix.md");
+        mpg.setPackageInfo(pc);
+
+        // 自定义配置
+        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) {
+                // 自定义输入文件名称
+                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();
+        strategy.setNaming(NamingStrategy.underline_to_camel);
+        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
+        strategy.setEntityLombokModel(true);
+//        strategy.setSuperControllerClass("com.baomidou.mybatisplus.samples.generator.common.BaseController");
+        strategy.setInclude(scanner("表名"));
+        strategy.setSuperEntityColumns("id");
+        strategy.setControllerMappingHyphenStyle(true);
+        strategy.setTablePrefix(pc.getModuleName() + "_");
+        mpg.setStrategy(strategy);
+        // 选择 freemarker 引擎需要指定如下加，注意 pom 依赖必须有！
+        mpg.setTemplateEngine(new FreemarkerTemplateEngine());
+        mpg.execute();
+    }
+
+}

src/main/resources/application.yml

+# DataSource Config
+spring:
+  datasource:
+    driver-class-name: org.h2.Driver
+    schema: classpath:db/schema-h2.sql
+    data: classpath:db/data-h2.sql
+    url: jdbc:h2:mem:test
+    username: root
+    password: test
+
+logging:
+  level:
+    com:
+      matrix:
+        md:
+          sys:
+            mapper: debug
\ No newline at end of file

src/main/resources/db/data-h2.sql

+DELETE FROM user;
+
+INSERT INTO user (id, name, age, email) VALUES
+(1, 'Jone', 18, 'test1@baomidou.com'),
+(2, 'Jack', 20, 'test2@baomidou.com'),
+(3, 'Tom', 28, 'test3@baomidou.com'),
+(4, 'Sandy', 21, 'test4@baomidou.com'),
+(5, 'Billie', 24, 'test5@baomidou.com');
\ No newline at end of file

src/main/resources/db/schema-h2.sql

+DROP TABLE IF EXISTS user;
+
+CREATE TABLE user
+(
+	id BIGINT(20) NOT NULL COMMENT '主键ID',
+	name VARCHAR(30) NULL DEFAULT NULL COMMENT '姓名',
+	age INT(11) NULL DEFAULT NULL COMMENT '年龄',
+	email VARCHAR(50) NULL DEFAULT NULL COMMENT '邮箱',
+	PRIMARY KEY (id)
+);
\ No newline at end of file

src/main/resources/mapper/sys/UserMapper.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.matrix.md.sys.mapper.UserMapper">
+
+</mapper>