mybatis generator 生成数据库注释DAO源码

1. 重写一个注释类
2. 打包 安装到maven
3. 设置pom
4. generatorConfig
5. 生成源码 mybatis-generator:generate

写一个 MyCommentGenerator 类继承 DefaultCommentGenerator 重写addFieldComment方法
程序如下

package org.improve4meaven.generator;import org.mybatis.generator.api.IntrospectedColumn;import org.mybatis.generator.api.IntrospectedTable;import org.mybatis.generator.api.dom.java.Field;import org.mybatis.generator.internal.DefaultCommentGenerator;public class MyCommentGenerator extends DefaultCommentGenerator {    @Override    public void addFieldComment(Field field, IntrospectedTable introspectedTable,            IntrospectedColumn introspectedColumn) {        // 添加字段注释//      第一种  注释//      StringBuffer sb = new StringBuffer();//      field.addJavaDocLine("/**");////      field.addJavaDocLine(" * <pre>");//      if (introspectedColumn.getRemarks() != null)//          field.addJavaDocLine(" * " + introspectedColumn.getRemarks());//      sb.append(" * 表字段 : ");//      sb.append(introspectedTable.getFullyQualifiedTable());//      sb.append('.');//      sb.append(introspectedColumn.getActualColumnName());//      field.addJavaDocLine(sb.toString());//      field.addJavaDocLine(" * </pre>");//      field.addJavaDocLine(" * ");//      // addJavadocTag(field, false);//      field.addJavaDocLine(" */");//      第二种注释        StringBuffer sb = new StringBuffer();        if (introspectedColumn.getRemarks() != null)            sb.append(" //" + introspectedColumn.getRemarks());        sb.append("  --- ");        sb.append(introspectedTable.getFullyQualifiedTable());        sb.append('.');        sb.append(introspectedColumn.getActualColumnName());        field.addJavaDocLine(sb.toString());    }}

2、导出jar 包 并且安装到 meaven

mvn install:install-file -Dfile=MyCommentGenerator.jar -DgroupId=org.improve4meaven.generator -DartifactId=MyCommentGenerator -Dversion=1.0.SNAPSHOT -Dpackaging=jar
详细解释

3、设置pom

根据别的普通包配置即可

<dependency>            <groupId>org.improve4meaven.generator</groupId>            <artifactId>MyCommentGenerator</artifactId>            <version>1.0.SNAPSHOT</version>        </dependency>

插件依赖配置

<build>        <!-- 项目名称 -->        <finalName>TestMybatis</finalName>        <!-- 插件 -->        <plugins>            <plugin>                <!-- mybatis-generator:generate 使用的插件 -->                <groupId>org.mybatis.generator</groupId>                <artifactId>mybatis-generator-maven-plugin</artifactId>                <version>1.3.5</version>                <configuration>                    <!--允许移动生成的文件 -->                    <verbose>true</verbose>                    <!--允许覆盖生成的文件 -->                    <overwrite>true</overwrite>                </configuration>                <!-- 插件所依赖的包 -->                <dependencies>                    <dependency>                        <groupId>org.improve4meaven.generator</groupId>                        <artifactId>MyCommentGenerator</artifactId>                        <version>1.0.SNAPSHOT</version>                    </dependency>                </dependencies>            </plugin>        </plugins>    </build>

4、generatorConfig配置

注意：commentGenerator type=”org.improve4meaven.generator.MyCommentGenerator”>

<?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="D:\mysqldriver\mysql-connector-java-5.1.26.jar" />    <context id="context1" targetRuntime="MyBatis3">        <commentGenerator type="org.improve4meaven.generator.MyCommentGenerator">            <property name="suppressAllComments" value="true" />        </commentGenerator>        <jdbcConnection driverClass="com.mysql.jdbc.Driver"            connectionURL="jdbc:mysql://127.0.0.1:3309/test?characterEncoding=utf8&amp;useSSL=true&amp;createDatabaseIfNotExist=true&amp;serverTimezone=GMT&amp;nullNamePatternMatchesAll=true"            userId="root" password="sadsad" >            <property name="useInformationSchema" value="true"></property>            </jdbcConnection>        <javaModelGenerator targetPackage="org.share.domain.tree.dao"            targetProject="src/main/java" />        <sqlMapGenerator targetPackage="xml" targetProject="src/main/resources" />        <javaClientGenerator targetPackage="org.share.domain.tree.mapper"            targetProject="src/main/java" type="XMLMAPPER" >             <property name="enableSubPackages" value="true"/>             </javaClientGenerator>        <!-- shema 数据库 tableName表明 -->        <table schema="test" tableName="sm_user" domainObjectName="SMUser"                 enableCountByExample="false" enableUpdateByExample="false"               enableDeleteByExample="false" enableSelectByExample="false"               enableSelectByPrimaryKey="true" enableUpdateByPrimaryKey="true"               enableDeleteByPrimaryKey="true">        </table>    </context></generatorConfiguration>

5、mybatis-generator:generate

生成三个文件，如下图

DAO 如下

package org.share.domain.tree.dao;public class SMUser {     //主键  --- sm_user.pk_user    private Integer pkUser;     //姓名  --- sm_user.name    private String name;    public Integer getPkUser() {        return pkUser;    }    public void setPkUser(Integer pkUser) {        this.pkUser = pkUser;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

大概如此，如果有什么不懂得 可以留言