IDEA使用Easy Code插件生成代码

Easy Code可以根据表自动生成代码，如controller、entity、server、serverImpl、dao、dao.xml等常用的类和代码，可以大大节省时间，提高编码效率

 1.(IDEA)File->Settings->Plugins，搜索"Easy Code"，然后安装

2.安装后重启IDEA，使用IDEA-Database连接数据库

输入数据库连接信息，点击Test Connection测试连接

3.首先需要创建表，然后选中"表"名(user表为例)右击，点击EasyCode，再点击Generate code

选择生成代码的Package路径，和需要生成代码的模板Template，点击OK即可

 4.生成代码后的样例

 5.简单测试

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>4.0.0modelVersion>
    <parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.3.0.RELEASEversion>
        <relativePath/>
    parent>

    <groupId>com.examplegroupId>
    <artifactId>demoartifactId>
    <version>0.0.1-SNAPSHOTversion>
    <packaging>jarpackaging>

    <properties>
        <java.version>1.8java.version>
    properties>
    
    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-data-jpaartifactId>
            <version>2.6.0version>
        dependency>

        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>com.baomidougroupId>
            <artifactId>mybatis-plus-boot-starterartifactId>
            <version>3.3.0version>
        dependency>
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
    dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
        plugins>
    build>

project>

application.yml

server:
  port: 8080

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/coolw?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
    username: root
    password: 123456

mybatis-plus:
  mapper-locations: classpath:/mapper/**/*.xml
  type-aliases-package: com.example.demo.entity

启动类添加注解@MapperScan("com.example.demo.dao")

@MapperScan("com.example.demo.dao")
@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

}

启动服务，访问 http://localhost:8080/user/1，成功展示(图中JSON格式的数据，是在谷歌浏览器中安装了JSON插件【JSON-handle_0.5.6.crx】)

 6.扩充：如果项目中使用了mybatis-plus，也可以将生成的模板改成mybatis-plus，会以mybatis-plus的格式生成文件

(IDEA)File->Settings->Other Settings->EasyCode->Template。选择生成代码对应的模板，然后将Group Name选择"MybatisPlus"即可。例如将entity改成以mybatis-plus模板生成代码，

 7.扩充：设置生成模板代码的java类型和数据库类型匹配规则

(IDEA)File->Settings->Other Settings->EasyCode->Type Mapper