MyBatis Generator插件安装

1、打开Eclipse，按照【Help】 -> 【Eclipse Marketplace...】打开选项；

2、搜索输入MyBatis Generator，点击【Go】，如下图，然后点击右下角的【Install】(如果已经安装，则会出现如下图的两个按钮【Update】【UnInstall】)即开始安装，安装完成后重启Eclipse。

3、验证是否安装成功：

打开Eclipse，【File】 -> 【New】->【Other..】，打开页面，出现【MyBatis】->【MyBatis Genetator Configuration File】选项既为安装成功：

generatorConfig.xml配置

1、创建generatorConfig.xml文件

在根目录下右键New -> MyBatis -> MyBatis Generator Configuration File 即可创建generatorConfig.xml文件

<?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>
<context id="context1">
    <jdbcConnection connectionURL="???" driverClass="???" password="???" userId="???" />
    <javaModelGenerator targetPackage="???" targetProject="???" />
    <sqlMapGenerator targetPackage="???" targetProject="???" />
    <javaClientGenerator targetPackage="???" targetProject="???" type="XMLMAPPER" />
    <table schema="???" tableName="???">
      <columnOverride column="???" property="???" />
    </table>
</context>
</generatorConfiguration>

2、修改后的generatorConfig.xml文件

<?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="E:\mavenCK\mysql\mysql-connector-java\5.1.29\mysql-connector-java-5.1.29.jar" />

<context id="Mysql2Tables" targetRuntime="MyBatis3">
       
        <property name="javaFileEncoding" value="UTF-8"/>
        
        <property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
       
        <property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
      
        <commentGenerator type="com.flight.manager.MyCommentGenerator">
            <property name="suppressAllComments" value="false" />
            <property name="suppressDate" value="false" /> 
        </commentGenerator>

        
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
            connectionURL="jdbc:mysql://localhost:3306/test"
            userId="root"
            password="root">
             
            <property name="useInformationSchema" value="true"></property>
        </jdbcConnection>
        

        
        <javaTypeResolver >
          <property name="forceBigDecimals" value="true" />
        </javaTypeResolver>

       
        <javaModelGenerator targetPackage="com.flight.manager.model" targetProject="flight-manager-web/src/main/java">
            
            <property name="constructorBased" value="false"/>

            
            <property name="enableSubPackages" value="false"/>

            
            <property name="immutable" value="false"/>

            
            

            
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

       
        <sqlMapGenerator targetPackage="com.flight.manager.mapper.xml" targetProject="flight-manager-web/src/main/java">
              <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>

        
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.flight.manager.mapper" targetProject="flight-manager-web/src/main/java">
            <property name="enableSubPackages" value="false"/>
          </javaClientGenerator>


          
            <table tableName="ccs_seat_info_air_bak" domainObjectName="ccsSeatInfoAirBak">
                
                
                <property name="useActualColumnNames" value="false"/>


                

                

                
                 <generatedKey column="id" sqlStatement="MySql"/>

                  

                    
                            
                          
                            
                            
                            
                            

            </table>
   </context>
</generatorConfiguration>

注意：generatorConfig.xml中的<table>标签可以简单写成：
<table schema="test" tableName="ccs_seat_info_air_bak" domainObjectName="ccsSeatInfoAirBak" enaleCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
</table>
其中的属性是控制Mapper中是否生成的SQL语句。
常用的属性如下：
1，alias：为数据表设置的别名，如果设置了alias，那么生成的所有的SELECT SQL语句中，列名会变成：alias_actualColumnName
2，domainObjectName：生成的domain类的名字，如果不设置，直接使用表名作为domain类的名字；可以设置为somepck.domainName，那么会自动把domainName类再放到somepck包里面；
3，enableInsert（默认true）：指定是否生成insert语句；
4，enableSelectByPrimaryKey（默认true）：指定是否生成按照主键查询对象的语句（就是getById或get）；
5，enableSelectByExample（默认true）：MyBatis3Simple为false，指定是否生成动态查询语句；
6，enableUpdateByPrimaryKey（默认true）：指定是否生成按照主键修改对象的语句（即update)；
7，enableDeleteByPrimaryKey（默认true）：指定是否生成按照主键删除对象的语句（即delete）；
8，enableDeleteByExample（默认true）：MyBatis3Simple为false，指定是否生成动态删除语句；
9，enableCountByExample（默认true）：MyBatis3Simple为false，指定是否生成动态查询总条数语句（用于分页的总条数查询）；
10，enableUpdateByExample（默认true）：MyBatis3Simple为false，指定是否生成动态修改语句（只修改对象中不为空的属性）；

生成实体类及mapper文件

选中generatorConfig.xml文件，右键 ->Generate MyBatis/iBATIS Artifacts 点击执行即可完成。

ps：重写生成注释的类：

解决生成的注释为英文的问题，重写之后，生成的注释为中文

com.flight.manager.mybatis.generator.MyCommentGenerator

generatorConfig.xml文件引用处见commentGenerator属性

package com.flight.manager;

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

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.Field;
import org.mybatis.generator.api.dom.java.InnerClass;
import org.mybatis.generator.api.dom.java.InnerEnum;
import org.mybatis.generator.api.dom.java.Method;
import org.mybatis.generator.api.dom.java.Parameter;
import org.mybatis.generator.internal.DefaultCommentGenerator;

/**
* mybatis generator 自定义comment生成器.
* 基于MBG 1.3.2.
*
*/
public class MyCommentGenerator extends DefaultCommentGenerator implements CommentGenerator{

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

   public MyCommentGenerator() {
        super();
        properties = new Properties();
        systemPro = System.getProperties();
        suppressDate = false;
        suppressAllComments = false;
        currentDateStr = (new SimpleDateFormat("yyyy-MM-dd")).format(new Date());
   }


   @Override
   public void addFieldComment(Field field,
           IntrospectedTable introspectedTable,
           IntrospectedColumn introspectedColumn) {
       // 添加字段注释
       StringBuffer sb = new StringBuffer();
       field.addJavaDocLine("/**");
       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(" * ");
       field.addJavaDocLine(" */");

       //添加注解
       /* @Column(name = "air_ways")
       * 生成的实体类中没有引入Column类会报错，直接引入就可以了
       StringBuffer sb1 = new StringBuffer();
       sb1.append("@Column(name = ");
       sb1.append("\"");
       sb1.append(introspectedColumn.getActualColumnName());
       sb1.append("\"");
       sb1.append(")");
       field.addJavaDocLine(sb1.toString());
       */
   }

   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());
        innerClass.addJavaDocLine(" */");
   }

   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());
        innerEnum.addJavaDocLine(" */");
   }


   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());
        field.addJavaDocLine(" */");
   }

   public void addGetterComment(Method method, IntrospectedTable introspectedTable,
                                 IntrospectedColumn introspectedColumn) {
        if (suppressAllComments) {
            return;
        }

        method.addJavaDocLine("/**");

        StringBuilder sb = new StringBuilder();
        sb.append(" * 获取");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString());

        sb.setLength(0);
        sb.append(" * @return ");
        sb.append(introspectedColumn.getActualColumnName());
        sb.append(" ");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString());

        //      addJavadocTag(method, false);

        method.addJavaDocLine(" */");
   }

   public void addSetterComment(Method method, IntrospectedTable introspectedTable,
                                 IntrospectedColumn introspectedColumn) {
        if (suppressAllComments) {
            return;
        }


        method.addJavaDocLine("/**");
        StringBuilder sb = new StringBuilder();
        sb.append(" * 设置");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString());

        Parameter parm = method.getParameters().get(0);
        sb.setLength(0);
        sb.append(" * @param ");
        sb.append(parm.getName());
        sb.append(" ");
        sb.append(introspectedColumn.getRemarks());
        method.addJavaDocLine(sb.toString());

        //      addJavadocTag(method, false);

        method.addJavaDocLine(" */");
   }

   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());

        sb.setLength(0);
        sb.append(" * @author ");
        sb.append(systemPro.getProperty("user.name"));
        sb.append(" ");
        sb.append(currentDateStr);

        innerClass.addJavaDocLine(" */");
   }

}

Eclipse MyBatis Generator自动生成代码实体类及mapper.xml

MyBatis Generator插件安装

generatorConfig.xml配置

生成实体类及mapper文件

ps：重写生成注释的类：

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