pom文件 主要代码
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--分页插件 可忽略-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.9</version>
</dependency>
</dependencies>
<build>
<plugins>
<!--要打包了这个生成代码要禁止掉，本地开发开启-->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.5</version>
<dependencies>
<!--配置这个依赖主要是为了等下在配置mybatis-generator.xml的时候可以不用配置classPathEntry这样的一个属性，避免代码的耦合度太高-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper</artifactId>
<version>3.4.4</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<phase>package</phase>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<configuration>
<!--允许移动生成的文件 -->
<verbose>true</verbose>
<!-- 是否覆盖 -->
<overwrite>true</overwrite>
<!-- 自动生成的配置 -->
<configurationFile>src/main/resources/mybatis-generator/mybatis-generator.xml</configurationFile>
</configuration>
</plugin>
</plugins>
</build>
mybatis-generator.xml(resources目录下面 在pom文件中指定)
<?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">
<!-- 配置生成器 -->
<generatorConfiguration>
<!--执行generator插件生成文件的命令： call mvn mybatis-generator:generate -e -->
<!-- 引入配置文件 -->
<properties resource="config/druid.properties"/>
<!--classPathEntry:数据库的JDBC驱动,换成你自己的驱动位置 可选 -->
<!--<classPathEntry location="E:\mybatis\mysql-connector-java-5.1.24-bin.jar" /> -->
<!-- 一个数据库一个context -->
<!--defaultModelType="flat" 大数据字段，不分表 -->
<context id="MysqlTables" targetRuntime="MyBatis3Simple" defaultModelType="flat">
<!-- 自动识别数据库关键字，默认false，如果设置为true，根据SqlReservedWords中定义的关键字列表；
一般保留默认值，遇到数据库关键字（Java关键字），使用columnOverride覆盖 -->
<property name="autoDelimitKeywords" value="true"/>
<!-- 生成的Java文件的编码 -->
<property name="javaFileEncoding" value="utf-8"/>
<!-- beginningDelimiter和endingDelimiter：指明数据库的用于标记数据库对象名的符号，比如ORACLE就是双引号，MYSQL默认是`反引号； -->
<property name="beginningDelimiter" value="`"/>
<property name="endingDelimiter" value="`"/>
<!-- 格式化java代码 -->
<property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
<!-- 格式化XML代码 -->
<property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
<plugin type="org.mybatis.generator.plugins.SerializablePlugin"/>
<plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>
<!-- 指定需要编译的Mapper类型 （自定义接口方法）-->
<!--<plugin type="tk.mybatis.mapper.generator.MapperPlugin">-->
<!--<property name="mappers" value="com.wangs.config.MapperBase"/>-->
<!--<!–caseSensitive默认false，当数据库表名区分大小写时，可以将该属性设置为true–>-->
<!--<property name="caseSensitive" value="true"/>-->
<!--</plugin>-->
<!-- 注释 -->
<commentGenerator>
<property name="suppressAllComments" value="false"/><!-- 是否取消注释 -->
<property name="suppressDate" value="true"/> <!-- 是否生成注释代时间戳-->
</commentGenerator>
<!-- jdbc连接 -->
<jdbcConnection driverClass="${spring.datasource.type}" connectionURL="${spring.datasource.url}" userId="${spring.datasource.username}" password="${spring.datasource.password}"/>
<!-- 类型转换 -->
<javaTypeResolver>
<!-- 是否使用bigDecimal， false可自动转化以下类型（Long, Integer, Short, etc.） -->
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- 生成实体类地址 targetPackage指向数据库表对应实体类文件夹-->
<javaModelGenerator targetPackage="com.wangs.model" targetProject="src/main/java">
<property name="enableSubPackages" value="false"/>
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!-- 生成mapxml文件 targetPackage指向保存生成XML的文件夹-->
<sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 生成mapxml对应client，也就是接口dao targetPackage指向存放生成Mapper的java接口文件夹-->
<javaClientGenerator targetPackage="com.wangs.mapper" targetProject="src/main/java" type="XMLMAPPER">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>
<!-- table可以有多个,每个数据库中的表都可以写一个table，tableName表示要匹配的数据库表,也可以在tableName属性中通过使用%通配符来匹配所有数据库表,只有匹配的表才会自动生成文件 -->
<!--如果想生成一个表则tableName="table_name"-->
<table tableName="%"
enableCountByExample="true"
enableUpdateByExample="true"
enableDeleteByExample="true"
enableSelectByExample="true"
selectByExampleQueryId="true">
<property name="useActualColumnNames" value="false"/>
<!-- 数据库表主键 -->
<generatedKey column="id" sqlStatement="Mysql" identity="true"/>
</table>
</context>
</generatorConfiguration>
实体类 User.java（生成代码前）
package com.wangs.model;
import java.io.Serializable;
public class User implements Serializable {
private String id;
private String name;
private String password;
private String mobile;
private Integer age;
private String dis;
private static final long serialVersionUID = 1L;
}指向生成代码命令：mvn mybatis-generator:generate
IDEA工具可使用
执行成功：
以下为生成代码：
代码结构：
UserMapper.java
package com.wangs.mapper;
import com.wangs.model.User;
import java.util.List;
public interface UserMapper {
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table user
*
* @mbg.generated
*/
int deleteByPrimaryKey(String id);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table user
*
* @mbg.generated
*/
int insert(User record);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table user
*
* @mbg.generated
*/
User selectByPrimaryKey(String id);
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table user
*
* @mbg.generated
*/
List<User> selectAll();
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table user
*
* @mbg.generated
*/
int updateByPrimaryKey(User record);
}
User.java
package com.wangs.model;
import java.io.Serializable;
public class User implements Serializable {
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.id
*
* @mbg.generated
*/
private String id;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.name
*
* @mbg.generated
*/
private String name;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.password
*
* @mbg.generated
*/
private String password;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.mobile
*
* @mbg.generated
*/
private String mobile;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.age
*
* @mbg.generated
*/
private Integer age;
/**
*
* This field was generated by MyBatis Generator.
* This field corresponds to the database column user.dis
*
* @mbg.generated
*/
private String dis;
/**
* This field was generated by MyBatis Generator.
* This field corresponds to the database table user
*
* @mbg.generated
*/
private static final long serialVersionUID = 1L;
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.id
*
* @return the value of user.id
*
* @mbg.generated
*/
public String getId() {
return id;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.id
*
* @param id the value for user.id
*
* @mbg.generated
*/
public void setId(String id) {
this.id = id == null ? null : id.trim();
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.name
*
* @return the value of user.name
*
* @mbg.generated
*/
public String getName() {
return name;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.name
*
* @param name the value for user.name
*
* @mbg.generated
*/
public void setName(String name) {
this.name = name == null ? null : name.trim();
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.password
*
* @return the value of user.password
*
* @mbg.generated
*/
public String getPassword() {
return password;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.password
*
* @param password the value for user.password
*
* @mbg.generated
*/
public void setPassword(String password) {
this.password = password == null ? null : password.trim();
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.mobile
*
* @return the value of user.mobile
*
* @mbg.generated
*/
public String getMobile() {
return mobile;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.mobile
*
* @param mobile the value for user.mobile
*
* @mbg.generated
*/
public void setMobile(String mobile) {
this.mobile = mobile == null ? null : mobile.trim();
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.age
*
* @return the value of user.age
*
* @mbg.generated
*/
public Integer getAge() {
return age;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.age
*
* @param age the value for user.age
*
* @mbg.generated
*/
public void setAge(Integer age) {
this.age = age;
}
/**
* This method was generated by MyBatis Generator.
* This method returns the value of the database column user.dis
*
* @return the value of user.dis
*
* @mbg.generated
*/
public String getDis() {
return dis;
}
/**
* This method was generated by MyBatis Generator.
* This method sets the value of the database column user.dis
*
* @param dis the value for user.dis
*
* @mbg.generated
*/
public void setDis(String dis) {
this.dis = dis == null ? null : dis.trim();
}
/**
* This method was generated by MyBatis Generator.
* This method corresponds to the database table user
*
* @mbg.generated
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(getClass().getSimpleName());
sb.append(" [");
sb.append("Hash = ").append(hashCode());
sb.append(", id=").append(id);
sb.append(", name=").append(name);
sb.append(", password=").append(password);
sb.append(", mobile=").append(mobile);
sb.append(", age=").append(age);
sb.append(", dis=").append(dis);
sb.append(", serialVersionUID=").append(serialVersionUID);
sb.append("]");
return sb.toString();
}
}
UserMapper.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.wangs.mapper.UserMapper">
<resultMap id="BaseResultMap" type="com.wangs.model.User">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
<id column="id" jdbcType="VARCHAR" property="id" />
<result column="name" jdbcType="VARCHAR" property="name" />
<result column="password" jdbcType="VARCHAR" property="password" />
<result column="mobile" jdbcType="VARCHAR" property="mobile" />
<result column="age" jdbcType="INTEGER" property="age" />
<result column="dis" jdbcType="VARCHAR" property="dis" />
</resultMap>
<delete id="deleteByPrimaryKey" parameterType="java.lang.String">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
delete from user
where id = #{id,jdbcType=VARCHAR}
</delete>
<insert id="insert" parameterType="com.wangs.model.User">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
<selectKey keyProperty="id" order="AFTER" resultType="java.lang.String">
SELECT LAST_INSERT_ID()
</selectKey>
insert into user (`name`, `password`, mobile,
age, dis)
values (#{name,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, #{mobile,jdbcType=VARCHAR},
#{age,jdbcType=INTEGER}, #{dis,jdbcType=VARCHAR})
</insert>
<update id="updateByPrimaryKey" parameterType="com.wangs.model.User">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
update user
set `name` = #{name,jdbcType=VARCHAR},
`password` = #{password,jdbcType=VARCHAR},
mobile = #{mobile,jdbcType=VARCHAR},
age = #{age,jdbcType=INTEGER},
dis = #{dis,jdbcType=VARCHAR}
where id = #{id,jdbcType=VARCHAR}
</update>
<select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
select id, `name`, `password`, mobile, age, dis
from user
where id = #{id,jdbcType=VARCHAR}
</select>
<select id="selectAll" resultMap="BaseResultMap">
<!--
WARNING - @mbg.generated
This element is automatically generated by MyBatis Generator, do not modify.
-->
select id, `name`, `password`, mobile, age, dis
from user
</select>
</mapper>
版权声明：本文为MyBai5原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。