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maven插件自动生成mapper文件

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第一步，新建maven plugin工程

idea 选择 file -> new project -> maven

后面一直next，注意maven plugin 工程的命名最好是 xxx-maven-plugin.

添加依赖

下面写maven插件必须的依赖。

  <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-plugin-api</artifactId>
      <version>2.0</version>
    </dependency>

    <dependency>
      <groupId>org.apache.maven.plugin-tools</groupId>
      <artifactId>maven-plugin-annotations</artifactId>
      <version>3.1</version>
    </dependency>

因为要依赖mybatis-plus-generator来生成mapper等文件，所以还需要添加下面等依赖。

    <dependency>
      <groupId>com.baomidou</groupId>
      <artifactId>mybatis-plus-generator</artifactId>
      <version>3.3.0</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <scope>runtime</scope>
      <version>8.0.15</version>
    </dependency>
    <dependency>
      <groupId>org.apache.velocity</groupId>
      <artifactId>velocity-engine-core</artifactId>
      <version>2.1</version>
    </dependency>

实现功能

@Mojo( name = "mybatis-generate",
        defaultPhase = LifecyclePhase.PROCESS_SOURCES)
public class MyMojo extends AbstractMojo {

    /**
     * 要生成的表名.
     */
    @Parameter(defaultValue = "${tables}", required = true)
    private String tables;

    /**
     * 数据库连接
     */
    @Parameter(defaultValue = "${url}", required = true)
    private String url;

    /**
     * 驱动名称
     */
    @Parameter(defaultValue = "${driverName}", required = true)
    private String driverName;

    /**
     * 用户名称
     */
    @Parameter(defaultValue = "${username}", required = true)
    private String username;

    /**
     * 密码
     */
    @Parameter(defaultValue = "${password}", required = true)
    private String password;

    /**
     * 父包名
     */
    @Parameter(defaultValue = "${parentModuleName}", required = true)
    private String parentModuleName;

    /**
     * 密码
     */
    @Parameter(defaultValue = "${author}", required = false)
    private String author;


    private static final String DEFAULT_AUTHOR = "SYSTEM GENERATE";

    private Log log =  getLog();


    public void execute() throws MojoExecutionException {

        if(this.isNullOrEmpty(tables)){
            getLog().error("tables is null or empty");
            throw new MojoExecutionException("tables is null or empty");
        }

        String[] tableArr = tables.split(",");
        if(Objects.isNull(tableArr) || tableArr.length <= 0){
            getLog().error("tables is null or empty");
            throw new MojoExecutionException("tables is null or empty");
        }

        AutoGenerator mpg = new AutoGenerator();
        //1、全局配置
        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty("user.dir");
        gc.setOutputDir(projectPath + "/src/main/java");
        gc.setAuthor(this.isNullOrEmpty(author) ? DEFAULT_AUTHOR : author);
        gc.setOpen(false);
        gc.setFileOverride(true);
        gc.setServiceName("I%sService");
        gc.setBaseResultMap(true);
        mpg.setGlobalConfig(gc);

        //2、数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl(url);
        dsc.setDriverName(driverName);
        dsc.setUsername(username);
        dsc.setPassword(password);
        mpg.setDataSource(dsc);

        // 3、包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent(parentModuleName);
        mpg.setPackageInfo(pc);

        // 4、策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        strategy.setEntityLombokModel(true);
        strategy.setInclude(tableArr);
        mpg.setStrategy(strategy);

        //5、执行
        mpg.execute();
    }
    
    public boolean isNullOrEmpty(CharSequence cs) {
        return cs == null || cs.length() == 0;
    }
}

使用

maven install到本地或者deploy到远程，然后在需要使用的项目pom.xml文件中添加依赖。

<plugins>
	<plugin>
		<groupId>org.example</groupId>
		<artifactId>mybatisplus-maven-plugin</artifactId>
		<version>1.0-SNAPSHOT</version>
		<configuration>
			<tables>sp_user</tables>
			<url>
				jdbc:mysql://127.0.0.1:3306/myshop?serverTimezone=Asia/Shanghai&amp;useUnicode=true&amp;characterEncoding=utf-8&amp;zeroDateTimeBehavior=convertToNull&amp;useSSL=false&amp;allowPublicKeyRetrieval=true
			</url>
			<driverName>com.mysql.cj.jdbc.Driver</driverName>
			<username>root</username>
			<password>a123456</password>
			<parentModuleName>com.lkb.myshop</parentModuleName>
			<author>lkb</author>
		</configuration>
	</plugin>
</plugins>

这个插件很简陋，在很多地方可以完善，例如：数据库信息的获取方面，生成文件的选择方面等等。后续优化完成后再完善一波。

完整代码 请查看
源码链接

【工具】maven插件自动生成mapper文件

标签：mysql   snapshot   nap   自动   ide   工具   完整   param   https   

原文地址：https://www.cnblogs.com/catlkb/p/14632276.html