继承DefaultCommentGenerator 或者CommentGenerator



package com.zhianchen.mysqlremark.toword.config;

import org.apache.commons.lang3.StringUtils;
import org.mybatis.generator.api.CommentGenerator;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.IntrospectedTable;
import org.mybatis.generator.api.dom.java.*;
import org.mybatis.generator.api.dom.xml.XmlElement;
import org.mybatis.generator.config.PropertyRegistry;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;

/*
 *
 *@Description MybatisGenerator
 *@Author chenzhian
 *@Date 2021/11/11 16:36
 */
public class MybatisGenerator  implements CommentGenerator {
    private Properties properties;
    private Properties systemPro;
    //时间
    private  String currentDateStr;

    private  Boolean suppressDate;
    //时间
    private  Boolean suppressAllComments;

    private String author;

    public MybatisGenerator(){
        properties=new Properties();
        systemPro=System.getProperties();
        currentDateStr=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());

    }
    public void addConfigurationProperties(Properties properties) {
        this.properties.putAll(properties);
        String strsuppressDate= properties.getProperty(PropertyRegistry.COMMENT_GENERATOR_SUPPRESS_DATE);
        suppressDate="true".equals(strsuppressDate);
        String strsuppressAllComments= properties.getProperty(PropertyRegistry.COMMENT_GENERATOR_SUPPRESS_ALL_COMMENTS);
        suppressAllComments="true".equals(strsuppressAllComments);
        author=properties.getProperty("author");
    }

    /**
     * 字段注释的方法
     */
    public void addFieldComment(Field field, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn) {
        // 添加字段注释
        field.addJavaDocLine("/**");
        field.addJavaDocLine("* "+introspectedColumn.getActualColumnName());
        field.addJavaDocLine("* "+introspectedColumn.getRemarks());
        field.addJavaDocLine(" */");
    }

    public void addFieldComment(Field field, IntrospectedTable introspectedTable) {
        // 添加字段注释
        field.addJavaDocLine("/**");
        field.addJavaDocLine("* "+field.getName());
        field.addJavaDocLine(" */");
    }

    public void addModelClassComment(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
        if(suppressAllComments){
            return;
        }
        // 添加字段注释
        topLevelClass.addJavaDocLine("/**");
        topLevelClass.addJavaDocLine(" * ");
        topLevelClass.addJavaDocLine(""+introspectedTable.getFullyQualifiedTable());
        topLevelClass.addJavaDocLine(" * @description : " + introspectedTable.getRemarks());
        topLevelClass.addJavaDocLine(" * @author : " + author);
        topLevelClass.addJavaDocLine(" * @date : " + currentDateStr);
        topLevelClass.addJavaDocLine(" * @modify : " );
        topLevelClass.addJavaDocLine(" */");
    }

    public void addClassComment(InnerClass innerClass, IntrospectedTable introspectedTable) {
        if(suppressAllComments){
            return;
        }
        // 添加字段注释
        innerClass.addJavaDocLine("/**");
        innerClass.addJavaDocLine(" * ");
        innerClass.addJavaDocLine(""+introspectedTable.getFullyQualifiedTable());
        innerClass.addJavaDocLine(" * @description : " + introspectedTable.getRemarks());
       innerClass.addJavaDocLine(" * @author : " + author);
        innerClass.addJavaDocLine(" * @date : " + currentDateStr);
        innerClass.addJavaDocLine(" * @modify : " );
        innerClass.addJavaDocLine(" */");
    }

    public void addClassComment(InnerClass innerClass, IntrospectedTable introspectedTable, boolean b) {
        if(suppressAllComments){
            return;
        }
        // 添加字段注释
        innerClass.addJavaDocLine("/**");
        innerClass.addJavaDocLine(" * ");
        innerClass.addJavaDocLine(""+introspectedTable.getFullyQualifiedTable());
        innerClass.addJavaDocLine(" * @description : " + introspectedTable.getRemarks());
        innerClass.addJavaDocLine(" * @author : " + author);
        innerClass.addJavaDocLine(" * @date : " + currentDateStr);
        innerClass.addJavaDocLine(" * @modify : " );
        innerClass.addJavaDocLine(" */");
    }

    public void addEnumComment(InnerEnum innerEnum, IntrospectedTable introspectedTable) {
        if(suppressAllComments){
            return;
        }
        // 添加字段注释
        innerEnum.addJavaDocLine("/**");
        innerEnum.addJavaDocLine(" * ");
        innerEnum.addJavaDocLine(""+introspectedTable.getFullyQualifiedTable());
        innerEnum.addJavaDocLine(" * @description : " + introspectedTable.getRemarks());
        innerEnum.addJavaDocLine(" * @author : " + author);
        innerEnum.addJavaDocLine(" * @date : " + currentDateStr);
        innerEnum.addJavaDocLine(" * @modify : " );
        innerEnum.addJavaDocLine(" */");
    }

    public void addGetterComment(Method method, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn) {
        method.addJavaDocLine("/**");
        method.addJavaDocLine("* "+introspectedTable.getRemarks());
        method.addJavaDocLine("* @return "+method.getName());

        method.addJavaDocLine(" */");
    }

    public void addSetterComment(Method method, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn) {
        method.addJavaDocLine("/**");
        method.addJavaDocLine("* "+introspectedTable.getRemarks());
        Parameter parameter=method.getParameters().get(0);
        method.addJavaDocLine("* @param "+parameter.getName());

        method.addJavaDocLine(" */");
    }

    public void addGeneralMethodComment(Method method, IntrospectedTable introspectedTable) {
        if(suppressAllComments){
            return;
        }
        // 添加字段注释
        method.addJavaDocLine("/**");
        method.addJavaDocLine(" * ");
        //method.addJavaDocLine(""+method.getName());
        method.addJavaDocLine(" * @description : " + introspectedTable.getRemarks());
        method.addJavaDocLine(" * @author : " + author);
        method.addJavaDocLine(" * @date : " + currentDateStr);
        method.addJavaDocLine(" * @modify : " );
        method.addJavaDocLine(" */");
    }

    public void addJavaFileComment(CompilationUnit compilationUnit) {
        if(suppressAllComments){
            return;
        }

    }

    public void addComment(XmlElement xmlElement) {

    }

    public void addRootComment(XmlElement xmlElement) {

    }
}






,就是introspectedColumn.getRemarks()获取不到字段的注释,生成的javabean里面应该显示字段注释的地方显示的是null.


或者 introspectedTable.getRemarks() 获取不到表的注释，记得加上以下




<?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>
    <classPathEntry location="J:\program\myprogram\maven\repository\mysql\mysql-connector-java\5.1.30\mysql-connector-java-5.1.30.jar"/>
    <context id="DB2Tables" targetRuntime="MyBatis3">
        <!-- 生成mysql带有分页的sql的插件  这个可以自己写，-->
       <!-- <plugin type="generator.MysqlPaginationPlugin" />-->
        <plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
        <plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
       <!-- <property name="javaFileEncoding" value="UTF-8"/>-->

        <!-- 自定义的注释规则，继承 DefaultCommentGenerator 重写 一些方法 -->
        <commentGenerator type="com.zhianchen.mysqlremark.toword.config.MybatisGenerator">
            <!-- 是否去除自动生成日期的注释 true：是 ： false:否 -->
            <property name="suppressDate" value="true"/>
            <!-- 是否去除所有自动生成的注释 true：是 ： false:否 -->
            <property name="suppressAllComments" value="false"/>
            <property name="author" value="zhianchen"/>
        </commentGenerator>
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/information_schema"
                        userId="aaa"
                        password="aaaa">
            <!-- 针对oracle数据库 -->
            <!--<property name="remarksReporting" value="true"></property>-->
            <!-- 针对mysql数据库 -->
            <property name="useInformationSchema" value="true"></property>
        </jdbcConnection>
        <!--生成entity类存放位置-->
        <javaModelGenerator targetPackage="com.zhianchen.mysqlremark.toword.entity" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!--生成映射文件存放位置-->
        <sqlMapGenerator targetPackage="mapping.master" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!--生成Dao类存放位置-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.zhianchen.mysqlremark.toword.dao"
                             targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
     <!--   <table tableName="TABLES" domainObjectName="Tables" />
        <table tableName="COLUMNS" domainObjectName="Columns"/>-->
        <table tableName="STATISTICS" domainObjectName="Statistics"/>

    </context>
</generatorConfiguration>




来源


mysql generator备注_MyBatis Generator 自定义生成注释的方法


Mybatis Generator 自定义注释（生成带有中文字段名注释的Bean)


mybatis-generator自定义注释生成
												


																

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