MyBatis的逆向工程使用

MyBatis的逆向工程使用

1，首先导入逆向工程执行需要的依赖包

<dependencies>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.46</version>
        </dependency>
 </dependencies>

 <build>
        <plugins>
             <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <configuration>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>
        </plugins>
        
        
		//使maopper的dao接口月mapper.xml文件在打包的时候放进同一个包里面
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.*</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>

    </build>

2，编写generatorConfig.xml文件，进行逆向工程

<?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="C:\workspace\MAVEN\repository\mysql\mysql-connector-java\5.1.40\mysql-connector-java-5.1.40.jar"/>
    <context id="context1" >
        <commentGenerator>
            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql:///test?characterEncoding=utf8" userId="root" password="1234" />
        <!-- pojo实体类 -->
        <javaModelGenerator targetPackage="person.david.ssm.pojo" targetProject="src/main/java" />
        <!-- 映射文件放如资源目录 -->
        <sqlMapGenerator targetPackage="person.david.ssm.mapper" targetProject="src/main/resources" />
        <!-- mapper接口 -->
        <javaClientGenerator targetPackage="person.david.ssm.mapper" targetProject="src/main/java" type="XMLMAPPER" />
        <table tableName="t_address" domainObjectName="Address"/>
        <table tableName="t_order" domainObjectName="Order"/>

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

3，然后再使用maven插件mybatis-generator:generate运行程序，自动生成代码

Address.class

package person.david.ssm.pojo;

public class Address {
    private Integer id;

    private String name;

    private String phone;

    private String detail;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail;
    }
}

AddressExample.class

package person.david.ssm.pojo;

import java.util.ArrayList;
import java.util.List;

public class AddressExample {
    protected String orderByClause;

    protected boolean distinct;

    protected List<Criteria> oredCriteria;

    public AddressExample() {
        oredCriteria = new ArrayList<Criteria>();
    }

    public void setOrderByClause(String orderByClause) {
        this.orderByClause = orderByClause;
    }

    public String getOrderByClause() {
        return orderByClause;
    }

    public void setDistinct(boolean distinct) {
        this.distinct = distinct;
    }

    public boolean isDistinct() {
        return distinct;
    }

    public List<Criteria> getOredCriteria() {
        return oredCriteria;
    }

    public void or(Criteria criteria) {
        oredCriteria.add(criteria);
    }

    public Criteria or() {
        Criteria criteria = createCriteriaInternal();
        oredCriteria.add(criteria);
        return criteria;
    }

    public Criteria createCriteria() {
        Criteria criteria = createCriteriaInternal();
        if (oredCriteria.size() == 0) {
            oredCriteria.add(criteria);
        }
        return criteria;
    }

    protected Criteria createCriteriaInternal() {
        Criteria criteria = new Criteria();
        return criteria;
    }

    public void clear() {
        oredCriteria.clear();
        orderByClause = null;
        distinct = false;
    }

    protected abstract static class GeneratedCriteria {
        protected List<Criterion> criteria;

        protected GeneratedCriteria() {
            super();
            criteria = new ArrayList<Criterion>();
        }

        public boolean isValid() {
            return criteria.size() > 0;
        }

        public List<Criterion> getAllCriteria() {
            return criteria;
        }

        public List<Criterion> getCriteria() {
            return criteria;
        }

        protected void addCriterion(String condition) {
            if (condition == null) {
                throw new RuntimeException("Value for condition cannot be null");
            }
            criteria.add(new Criterion(condition));
        }

        protected void addCriterion(String condition, Object value, String property) {
            if (value == null) {
                throw new RuntimeException("Value for " + property + " cannot be null");
            }
            criteria.add(new Criterion(condition, value));
        }

        protected void addCriterion(String condition, Object value1, Object value2, String property) {
            if (value1 == null || value2 == null) {
                throw new RuntimeException("Between values for " + property + " cannot be null");
            }
            criteria.add(new Criterion(condition, value1, value2));
        }

        public Criteria andIdIsNull() {
            addCriterion("id is null");
            return (Criteria) this;
        }

        public Criteria andIdIsNotNull() {
            addCriterion("id is not null");
            return (Criteria) this;
        }

        public Criteria andIdEqualTo(Integer value) {
            addCriterion("id =", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdNotEqualTo(Integer value) {
            addCriterion("id <>", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdGreaterThan(Integer value) {
            addCriterion("id >", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdGreaterThanOrEqualTo(Integer value) {
            addCriterion("id >=", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdLessThan(Integer value) {
            addCriterion("id <", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdLessThanOrEqualTo(Integer value) {
            addCriterion("id <=", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdIn(List<Integer> values) {
            addCriterion("id in", values, "id");
            return (Criteria) this;
        }

        public Criteria andIdNotIn(List<Integer> values) {
            addCriterion("id not in", values, "id");
            return (Criteria) this;
        }

        public Criteria andIdBetween(Integer value1, Integer value2) {
            addCriterion("id between", value1, value2, "id");
            return (Criteria) this;
        }

        public Criteria andIdNotBetween(Integer value1, Integer value2) {
            addCriterion("id not between", value1, value2, "id");
            return (Criteria) this;
        }

        public Criteria andNameIsNull() {
            addCriterion("name is null");
            return (Criteria) this;
        }

        public Criteria andNameIsNotNull() {
            addCriterion("name is not null");
            return (Criteria) this;
        }

        public Criteria andNameEqualTo(String value) {
            addCriterion("name =", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotEqualTo(String value) {
            addCriterion("name <>", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameGreaterThan(String value) {
            addCriterion("name >", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameGreaterThanOrEqualTo(String value) {
            addCriterion("name >=", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameLessThan(String value) {
            addCriterion("name <", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameLessThanOrEqualTo(String value) {
            addCriterion("name <=", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameLike(String value) {
            addCriterion("name like", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotLike(String value) {
            addCriterion("name not like", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameIn(List<String> values) {
            addCriterion("name in", values, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotIn(List<String> values) {
            addCriterion("name not in", values, "name");
            return (Criteria) this;
        }

        public Criteria andNameBetween(String value1, String value2) {
            addCriterion("name between", value1, value2, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotBetween(String value1, String value2) {
            addCriterion("name not between", value1, value2, "name");
            return (Criteria) this;
        }

        public Criteria andPhoneIsNull() {
            addCriterion("phone is null");
            return (Criteria) this;
        }

        public Criteria andPhoneIsNotNull() {
            addCriterion("phone is not null");
            return (Criteria) this;
        }

        public Criteria andPhoneEqualTo(String value) {
            addCriterion("phone =", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneNotEqualTo(String value) {
            addCriterion("phone <>", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneGreaterThan(String value) {
            addCriterion("phone >", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneGreaterThanOrEqualTo(String value) {
            addCriterion("phone >=", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneLessThan(String value) {
            addCriterion("phone <", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneLessThanOrEqualTo(String value) {
            addCriterion("phone <=", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneLike(String value) {
            addCriterion("phone like", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneNotLike(String value) {
            addCriterion("phone not like", value, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneIn(List<String> values) {
            addCriterion("phone in", values, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneNotIn(List<String> values) {
            addCriterion("phone not in", values, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneBetween(String value1, String value2) {
            addCriterion("phone between", value1, value2, "phone");
            return (Criteria) this;
        }

        public Criteria andPhoneNotBetween(String value1, String value2) {
            addCriterion("phone not between", value1, value2, "phone");
            return (Criteria) this;
        }

        public Criteria andDetailIsNull() {
            addCriterion("detail is null");
            return (Criteria) this;
        }

        public Criteria andDetailIsNotNull() {
            addCriterion("detail is not null");
            return (Criteria) this;
        }

        public Criteria andDetailEqualTo(String value) {
            addCriterion("detail =", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailNotEqualTo(String value) {
            addCriterion("detail <>", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailGreaterThan(String value) {
            addCriterion("detail >", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailGreaterThanOrEqualTo(String value) {
            addCriterion("detail >=", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailLessThan(String value) {
            addCriterion("detail <", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailLessThanOrEqualTo(String value) {
            addCriterion("detail <=", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailLike(String value) {
            addCriterion("detail like", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailNotLike(String value) {
            addCriterion("detail not like", value, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailIn(List<String> values) {
            addCriterion("detail in", values, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailNotIn(List<String> values) {
            addCriterion("detail not in", values, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailBetween(String value1, String value2) {
            addCriterion("detail between", value1, value2, "detail");
            return (Criteria) this;
        }

        public Criteria andDetailNotBetween(String value1, String value2) {
            addCriterion("detail not between", value1, value2, "detail");
            return (Criteria) this;
        }
    }

    public static class Criteria extends GeneratedCriteria {

        protected Criteria() {
            super();
        }
    }

    public static class Criterion {
        private String condition;

        private Object value;

        private Object secondValue;

        private boolean noValue;

        private boolean singleValue;

        private boolean betweenValue;

        private boolean listValue;

        private String typeHandler;

        public String getCondition() {
            return condition;
        }

        public Object getValue() {
            return value;
        }

        public Object getSecondValue() {
            return secondValue;
        }

        public boolean isNoValue() {
            return noValue;
        }

        public boolean isSingleValue() {
            return singleValue;
        }

        public boolean isBetweenValue() {
            return betweenValue;
        }

        public boolean isListValue() {
            return listValue;
        }

        public String getTypeHandler() {
            return typeHandler;
        }

        protected Criterion(String condition) {
            super();
            this.condition = condition;
            this.typeHandler = null;
            this.noValue = true;
        }

        protected Criterion(String condition, Object value, String typeHandler) {
            super();
            this.condition = condition;
            this.value = value;
            this.typeHandler = typeHandler;
            if (value instanceof List<?>) {
                this.listValue = true;
            } else {
                this.singleValue = true;
            }
        }

        protected Criterion(String condition, Object value) {
            this(condition, value, null);
        }

        protected Criterion(String condition, Object value, Object secondValue, String typeHandler) {
            super();
            this.condition = condition;
            this.value = value;
            this.secondValue = secondValue;
            this.typeHandler = typeHandler;
            this.betweenValue = true;
        }

        protected Criterion(String condition, Object value, Object secondValue) {
            this(condition, value, secondValue, null);
        }
    }
}

AddressMapper.class

package person.david.ssm.mapper;

import java.util.List;
import org.apache.ibatis.annotations.Param;
import person.david.ssm.pojo.Address;
import person.david.ssm.pojo.AddressExample;

public interface AddressMapper {
    long countByExample(AddressExample example);

    int deleteByExample(AddressExample example);

    int deleteByPrimaryKey(Integer id);

    int insert(Address record);

    int insertSelective(Address record);

    List<Address> selectByExample(AddressExample example);

    Address selectByPrimaryKey(Integer id);

    int updateByExampleSelective(@Param("record") Address record, @Param("example") AddressExample example);

    int updateByExample(@Param("record") Address record, @Param("example") AddressExample example);

    int updateByPrimaryKeySelective(Address record);

    int updateByPrimaryKey(Address record);
}

AddressMapper.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="person.david.ssm.mapper.AddressMapper">
  <resultMap id="BaseResultMap" type="person.david.ssm.pojo.Address">
    <id column="id" jdbcType="INTEGER" property="id" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="phone" jdbcType="VARCHAR" property="phone" />
    <result column="detail" jdbcType="VARCHAR" property="detail" />
  </resultMap>
  <sql id="Example_Where_Clause">
    <where>
      <foreach collection="oredCriteria" item="criteria" separator="or">
        <if test="criteria.valid">
          <trim prefix="(" prefixOverrides="and" suffix=")">
            <foreach collection="criteria.criteria" item="criterion">
              <choose>
                <when test="criterion.noValue">
                  and ${criterion.condition}
                </when>
                <when test="criterion.singleValue">
                  and ${criterion.condition} #{criterion.value}
                </when>
                <when test="criterion.betweenValue">
                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
                </when>
                <when test="criterion.listValue">
                  and ${criterion.condition}
                  <foreach close=")" collection="criterion.value" item="listItem" open="(" separator=",">
                    #{listItem}
                  </foreach>
                </when>
              </choose>
            </foreach>
          </trim>
        </if>
      </foreach>
    </where>
  </sql>
  <sql id="Update_By_Example_Where_Clause">
    <where>
      <foreach collection="example.oredCriteria" item="criteria" separator="or">
        <if test="criteria.valid">
          <trim prefix="(" prefixOverrides="and" suffix=")">
            <foreach collection="criteria.criteria" item="criterion">
              <choose>
                <when test="criterion.noValue">
                  and ${criterion.condition}
                </when>
                <when test="criterion.singleValue">
                  and ${criterion.condition} #{criterion.value}
                </when>
                <when test="criterion.betweenValue">
                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
                </when>
                <when test="criterion.listValue">
                  and ${criterion.condition}
                  <foreach close=")" collection="criterion.value" item="listItem" open="(" separator=",">
                    #{listItem}
                  </foreach>
                </when>
              </choose>
            </foreach>
          </trim>
        </if>
      </foreach>
    </where>
  </sql>
  <sql id="Base_Column_List">
    id, name, phone, detail
  </sql>
  <select id="selectByExample" parameterType="person.david.ssm.pojo.AddressExample" resultMap="BaseResultMap">
    select
    <if test="distinct">
      distinct
    </if>
    <include refid="Base_Column_List" />
    from t_address
    <if test="_parameter != null">
      <include refid="Example_Where_Clause" />
    </if>
    <if test="orderByClause != null">
      order by ${orderByClause}
    </if>
  </select>
  <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select 
    <include refid="Base_Column_List" />
    from t_address
    where id = #{id,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
    delete from t_address
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <delete id="deleteByExample" parameterType="person.david.ssm.pojo.AddressExample">
    delete from t_address
    <if test="_parameter != null">
      <include refid="Example_Where_Clause" />
    </if>
  </delete>
  <insert id="insert" parameterType="person.david.ssm.pojo.Address">
    insert into t_address (id, name, phone, 
      detail)
    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{phone,jdbcType=VARCHAR}, 
      #{detail,jdbcType=VARCHAR})
  </insert>
  <insert id="insertSelective" parameterType="person.david.ssm.pojo.Address">
    insert into t_address
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="id != null">
        id,
      </if>
      <if test="name != null">
        name,
      </if>
      <if test="phone != null">
        phone,
      </if>
      <if test="detail != null">
        detail,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="id != null">
        #{id,jdbcType=INTEGER},
      </if>
      <if test="name != null">
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="phone != null">
        #{phone,jdbcType=VARCHAR},
      </if>
      <if test="detail != null">
        #{detail,jdbcType=VARCHAR},
      </if>
    </trim>
  </insert>
  <select id="countByExample" parameterType="person.david.ssm.pojo.AddressExample" resultType="java.lang.Long">
    select count(*) from t_address
    <if test="_parameter != null">
      <include refid="Example_Where_Clause" />
    </if>
  </select>
  <update id="updateByExampleSelective" parameterType="map">
    update t_address
    <set>
      <if test="record.id != null">
        id = #{record.id,jdbcType=INTEGER},
      </if>
      <if test="record.name != null">
        name = #{record.name,jdbcType=VARCHAR},
      </if>
      <if test="record.phone != null">
        phone = #{record.phone,jdbcType=VARCHAR},
      </if>
      <if test="record.detail != null">
        detail = #{record.detail,jdbcType=VARCHAR},
      </if>
    </set>
    <if test="_parameter != null">
      <include refid="Update_By_Example_Where_Clause" />
    </if>
  </update>
  <update id="updateByExample" parameterType="map">
    update t_address
    set id = #{record.id,jdbcType=INTEGER},
      name = #{record.name,jdbcType=VARCHAR},
      phone = #{record.phone,jdbcType=VARCHAR},
      detail = #{record.detail,jdbcType=VARCHAR}
    <if test="_parameter != null">
      <include refid="Update_By_Example_Where_Clause" />
    </if>
  </update>
  <update id="updateByPrimaryKeySelective" parameterType="person.david.ssm.pojo.Address">
    update t_address
    <set>
      <if test="name != null">
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="phone != null">
        phone = #{phone,jdbcType=VARCHAR},
      </if>
      <if test="detail != null">
        detail = #{detail,jdbcType=VARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="person.david.ssm.pojo.Address">
    update t_address
    set name = #{name,jdbcType=VARCHAR},
      phone = #{phone,jdbcType=VARCHAR},
      detail = #{detail,jdbcType=VARCHAR}
    where id = #{id,jdbcType=INTEGER}
  </update>
</mapper>