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mybatis-generator插件 自动生成代码,自定义实体类(lombok带注释)

因为mybatis-generator插件生成的entity实体类,注释和getter、setter方法不够简洁

lombok插件

package org.mybatis.generator.plugins;

import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.IntrospectedTable;
import org.mybatis.generator.api.PluginAdapter;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.api.dom.java.Interface;
import org.mybatis.generator.api.dom.java.Method;
import org.mybatis.generator.api.dom.java.TopLevelClass;

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

public class LombokPlugin extends PluginAdapter {
    public LombokPlugin() {
    }

    public boolean validate(List<String> list) {
        return true;
    }

    public boolean modelBaseRecordClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
        topLevelClass.addImportedType("java.io.Serializable");
        topLevelClass.addImportedType("lombok.Data");
        topLevelClass.addImportedType("lombok.EqualsAndHashCode");
        topLevelClass.addImportedType("lombok.experimental.Accessors");
//        topLevelClass.addImportedType("lombok.NoArgsConstructor");
//        topLevelClass.addImportedType("lombok.AllArgsConstructor");
        topLevelClass.addAnnotation("@Data");
        topLevelClass.addAnnotation("@EqualsAndHashCode(callSuper = false)");
        topLevelClass.addAnnotation("@Accessors(chain = true)");
//        topLevelClass.addAnnotation("@NoArgsConstructor");
//        topLevelClass.addAnnotation("@AllArgsConstructor");
        topLevelClass.addJavaDocLine("/**");
        topLevelClass.addJavaDocLine(" * @author ");
        topLevelClass.addJavaDocLine(" * @date " + (new SimpleDateFormat("yyyy/MM/dd/hh:mm")).format(new Date()));
        topLevelClass.addJavaDocLine(" */");
        topLevelClass.addSuperInterface(new FullyQualifiedJavaType("java.io.Serializable"));
        return true;
    }

    public boolean clientGenerated(Interface anInterface, TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
        anInterface.addJavaDocLine("/**");
        anInterface.addJavaDocLine(" * @author");
        anInterface.addJavaDocLine(" * @date " + (new SimpleDateFormat("yyyy/MM/dd/hh:mm")).format(new Date()));
        anInterface.addJavaDocLine(" */");
        return true;
    }

    public boolean modelSetterMethodGenerated(Method method, TopLevelClass topLevelClass, IntrospectedColumn introspectedColumn, IntrospectedTable introspectedTable, ModelClassType modelClassType) {
        return false;
    }

    public boolean modelGetterMethodGenerated(Method method, TopLevelClass topLevelClass, IntrospectedColumn introspectedColumn, IntrospectedTable introspectedTable, ModelClassType modelClassType) {
        return false;
    }
}

自定义注释方法,重写CommentGenerator

package org.mybatis.generator.plugins;

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.MergeConstants;
import org.mybatis.generator.config.PropertyRegistry;

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

/**
 * @author HelSing
 * @date 2019/3/18
 */
public class MybatisCommentGenerator implements CommentGenerator {

    private Properties properties;
    private Properties systemPro;
    private boolean suppressDate;
    private boolean suppressAllComments;
    private String nowTime;

    public MybatisCommentGenerator() {
        super();
        properties = new Properties();
        systemPro = System.getProperties();
        suppressDate = false;
        suppressAllComments = false;
        nowTime = (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new Date());
    }


    /**
     * 类的注释
     * @param innerClass
     * @param introspectedTable
     * @param markAsDoNotDelete
     */
    @Override
    public void addClassComment(InnerClass innerClass, IntrospectedTable introspectedTable, boolean markAsDoNotDelete) {
        if (suppressAllComments) {
            return;
        }
        StringBuilder sb = new StringBuilder();
        innerClass.addJavaDocLine("/**");
        sb.append(" * ");
        sb.append(introspectedTable.getFullyQualifiedTable());
        innerClass.addJavaDocLine(sb.toString().replace("\n", " "));
        sb.setLength(0);
        sb.append(" * @author ");
        sb.append(systemPro.getProperty("user.name"));
        sb.append(" ");
        sb.append(nowTime);
        innerClass.addJavaDocLine(" */");
    }

    @Override
    public void addClassComment(InnerClass innerClass, IntrospectedTable introspectedTable) {
        if (suppressAllComments) {
            return;
        }
        StringBuilder sb = new StringBuilder();
        innerClass.addJavaDocLine("/**");
        sb.append(" * ");
        sb.append(introspectedTable.getFullyQualifiedTable());
        sb.append(" ");
        sb.append(getDateString());
        innerClass.addJavaDocLine(sb.toString().replace("\n", " "));
        innerClass.addJavaDocLine(" */");
    }

    /**
     * 设置字段注释
     */
    @Override
    public void addFieldComment(Field field, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn) {
        if (suppressAllComments) {
            return;
        }
        StringBuilder sb = new StringBuilder();
        field.addJavaDocLine("/**");
        sb.append(" * ");
        sb.append(introspectedColumn.getRemarks() + " " + introspectedColumn.getActualColumnName());
        field.addJavaDocLine(sb.toString().replace("\n", " "));
        field.addJavaDocLine(" */");
    }

    @Override
    public void addFieldComment(Field field, IntrospectedTable introspectedTable) {
        if (suppressAllComments) {
            return;
        }
        StringBuilder sb = new StringBuilder();
        field.addJavaDocLine("/**");
        sb.append(" * ");
        sb.append(introspectedTable.getFullyQualifiedTable());
        field.addJavaDocLine(sb.toString().replace("\n", " "));
        field.addJavaDocLine(" */");
    }

    @Override
    public void addModelClassComment(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {

    }

    /**
     * 设置setter方法注释
     */
    @Override
    public void addSetterComment(Method method, IntrospectedTable introspectedTable,
                                 IntrospectedColumn introspectedColumn) {
        if (suppressAllComments) {
            return;
        }
        method.addJavaDocLine("/**");
        StringBuilder sb = new StringBuilder();
        sb.append(" * ");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString().replace("\n", " "));
        sb.setLength(0);
        sb.append(" * @author ");
        sb.append(systemPro.getProperty("user.name"));
        method.addJavaDocLine(sb.toString().replace("\n", " "));
        sb.setLength(0);
        if(suppressDate){
            sb.append(" * @date " + nowTime);
            method.addJavaDocLine(sb.toString().replace("\n", " "));
            sb.setLength(0);
        }
        Parameter parm = method.getParameters().get(0);
        sb.append(" * @param ");
        sb.append(parm.getName());
        sb.append(" ");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString().replace("\n", " "));
        method.addJavaDocLine(" */");
    }

    /**
     * 设置getter方法注释
     */
    @Override
    public void addGetterComment(Method method, IntrospectedTable introspectedTable,
                                 IntrospectedColumn introspectedColumn) {
        if (suppressAllComments) {
            return;
        }
        method.addJavaDocLine("/**");
        StringBuilder sb = new StringBuilder();
        sb.append(" * ");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString().replace("\n", " "));
        sb.setLength(0);
        sb.append(" * @author ");
        sb.append(systemPro.getProperty("user.name"));
        method.addJavaDocLine(sb.toString().replace("\n", " "));
        sb.setLength(0);
        if(suppressDate){
            sb.append(" * @date " + nowTime);
            method.addJavaDocLine(sb.toString().replace("\n", " "));
            sb.setLength(0);
        }
        sb.append(" * @return ");
        sb.append(introspectedColumn.getActualColumnName());
        sb.append(" ");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString().replace("\n", " "));
        method.addJavaDocLine(" */");
    }

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

    @Override
    public void addComment(XmlElement xmlElement) {
        return;
    }

    @Override
    public void addRootComment(XmlElement rootElement) {
        return;
    }

    @Override
    public void addGeneralMethodAnnotation(Method method, IntrospectedTable introspectedTable, Set<FullyQualifiedJavaType> set) {

    }

    @Override
    public void addGeneralMethodAnnotation(Method method, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn, Set<FullyQualifiedJavaType> set) {

    }

    @Override
    public void addFieldAnnotation(Field field, IntrospectedTable introspectedTable, Set<FullyQualifiedJavaType> set) {

    }

    @Override
    public void addFieldAnnotation(Field field, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn, Set<FullyQualifiedJavaType> set) {

    }

    @Override
    public void addClassAnnotation(InnerClass innerClass, IntrospectedTable introspectedTable, Set<FullyQualifiedJavaType> set) {

    }

    @Override
    public void addConfigurationProperties(Properties properties) {
        this.properties.putAll(properties);
        suppressDate = Boolean.valueOf(properties.getProperty(PropertyRegistry.COMMENT_GENERATOR_SUPPRESS_DATE));
        suppressAllComments = Boolean.valueOf(properties.getProperty(PropertyRegistry.COMMENT_GENERATOR_SUPPRESS_ALL_COMMENTS));
    }

    protected void addJavadocTag(JavaElement javaElement, boolean markAsDoNotDelete) {
        javaElement.addJavaDocLine(" *");
        StringBuilder sb = new StringBuilder();
        sb.append(" * ");
        sb.append(MergeConstants.NEW_ELEMENT_TAG);
        if (markAsDoNotDelete) {
            sb.append(" do_not_delete_during_merge");
        }
        String s = getDateString();
        if (s != null) {
            sb.append(' ');
            sb.append(s);
        }
        javaElement.addJavaDocLine(sb.toString());
    }

    protected String getDateString() {
        String result = null;
        if (!suppressDate) {
            result = nowTime;
        }
        return result;
    }

    @Override
    public void addEnumComment(InnerEnum innerEnum, IntrospectedTable introspectedTable) {
        if (suppressAllComments) {
            return;
        }
        StringBuilder sb = new StringBuilder();
        innerEnum.addJavaDocLine("/**");
        sb.append(" * ");
        sb.append(introspectedTable.getFullyQualifiedTable());
        innerEnum.addJavaDocLine(sb.toString().replace("\n", " "));
        innerEnum.addJavaDocLine(" */");
    }

    @Override
    public void addGeneralMethodComment(Method method, IntrospectedTable introspectedTable) {
        if (suppressAllComments) {
            return;
        }
        method.addJavaDocLine("/**");
        addJavadocTag(method, false);
        method.addJavaDocLine(" */");
    }
}

方法路径一定要和org.mybatis.generator.plugins保持一致

然后把编译的class文件,放到你实际项目引入的mybatis-generator-core.jar的plugins文件里再次生成代码即可
在这里插入图片描述

在这里插入图片描述

生成的实体类

自动生成代码点击跳转

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