基于Mybatis的mysql数据实战——第二课

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.3.3.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.xdclass</groupId>
	<artifactId>xdclass-mysql</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>xdclass-mysql</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>6.0.6</version>
		</dependency>

		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.3.2</version>
		</dependency>
		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
			<version>3.4</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-core</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.datatype</groupId>
			<artifactId>jackson-datatype-joda</artifactId>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.module</groupId>
			<artifactId>jackson-module-parameter-names</artifactId>
		</dependency>
		<!-- 分页插件 -->
		<dependency>
			<groupId>com.github.pagehelper</groupId>
			<artifactId>pagehelper-spring-boot-starter</artifactId>
			<version>1.2.5</version>
		</dependency>
		<!-- alibaba的druid数据库连接池 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid-spring-boot-starter</artifactId>
			<version>1.1.9</version>
		</dependency>

	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>org.mybatis.generator</groupId>
				<artifactId>mybatis-generator-maven-plugin</artifactId>
				<version>1.3.7</version>
				<configuration>
					<configurationFile>tools/generatorConfig-xdclass.xml</configurationFile>
					<verbose>true</verbose>
					<overwrite>true</overwrite>
				</configuration>
				<executions>
					<execution>
						<id>Generate MyBatis Artifacts</id>
						<phase>none</phase>
						<goals>
							<goal>generate</goal>
						</goals>
					</execution>
				</executions>
				<dependencies>
					<dependency>
						<groupId>org.mybatis.generator</groupId>
						<artifactId>mybatis-generator-core</artifactId>
						<version>1.3.7</version>
					</dependency>
					<dependency>
						<groupId>mysql</groupId>
						<artifactId>mysql-connector-java</artifactId>
						<version>5.1.24</version>
					</dependency>

				</dependencies>
			</plugin>
		</plugins>
	</build>

</project>

<build>
    <plugins>
      <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>1.3.7</version>
        <configuration>
          <configurationFile>tools/generatorConfig-xdclass.xml</configurationFile>
          <verbose>true</verbose>
          <overwrite>true</overwrite>
        </configuration>
        <executions>
          <execution>
            <id>Generate MyBatis Artifacts</id>
            <phase>none</phase>
            <goals>
              <goal>generate</goal>
            </goals>
          </execution>
        </executions>
        <dependencies>
          <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.7</version>
          </dependency>
          <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.24</version>
          </dependency>
​
        </dependencies>
      </plugin>
    </plugins>
  </build>

<?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="xdclass" targetRuntime="MyBatis3">

        <!-- 用反引号`包裹,默认是双引号"-->
        <property name="autoDelimitKeywords" value="true"/>
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>
        <property name="javaFileEncoding" value="UTF-8"/>

        <plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin"/>
        <plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>
        <plugin type="org.mybatis.generator.plugins.MapperAnnotationPlugin"/>
        <plugin type="org.mybatis.generator.plugins.UnmergeableXmlMappersPlugin"/>


        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/xdclass_mysql?useUnicode=true&amp;characterEncoding=UTF-8"
                        userId="xdclass" password="xdclass">
        </jdbcConnection>

        <!-- java type resolver -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
            <property name="useJSR310Types" value="true"/>
        </javaTypeResolver>


        <!-- gem entity -->
        <javaModelGenerator targetPackage="com.xdclass.mysql.model"
                            targetProject="./src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="false"/>
        </javaModelGenerator>

        <!-- gem sql map -->
        <sqlMapGenerator targetPackage="mappers/xdclass/generated"
                         targetProject="./src/main/resources/">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>

        <!-- gem mapper -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.xdclass.mysql.persist.mapper.generated"
                             targetProject="./src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>

        <table tableName="user" domainObjectName="User" mapperName="UserMapper"
               enableCountByExample="false"
               enableUpdateByExample="false" enableDeleteByExample="false"
               enableSelectByExample="false" selectByExampleQueryId="false"
               enableDeleteByPrimaryKey="true" enableInsert="true"
               enableSelectByPrimaryKey="true" enableUpdateByPrimaryKey="true">
            <columnOverride column="is_default_type" property="defaultType" javaType="java.lang.Boolean"
                            jdbcType="TINYINT"/>
        </table>

    </context>
</generatorConfiguration>

@Mapper
public interface CustomUserMapper {

    /**
     * 通过name和company查询数据
     * @return
     */
    User selectByNameAndCompany(String name ,String company);
}

<?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.xdclass.mysql.persist.mapper.custom.CustomUserMapper">
  <resultMap id="ResultMap" type="com.xdclass.mysql.model.User">
    <id column="id" jdbcType="BIGINT" property="id" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="company" jdbcType="VARCHAR" property="company" />
  </resultMap>

  <sql id="Column_List">
    id, `name`, company
  </sql>

  <select id="selectByNameAndCompany"  resultMap="ResultMap">
    select 
    <include refid="Column_List" />
    from user
    where name = #{name,jdbcType=VARCHAR} and COMPANY=#{company,jdbcType=VARCHAR}
  </select>
</mapper>

    @RequestMapping(value = "/search", method = RequestMethod.GET)
    public RestItemResult<com.xdclass.mysql.model.User> get(String name,String company) {
        RestItemResult<com.xdclass.mysql.model.User> result = new RestItemResult<>();
        com.xdclass.mysql.model.User user = customUserMapper.selectByNameAndCompany(name,company);
        if (user != null) {
            result.setItem(user);
            result.setResult("success");
        } else {
            result.setMessage("查询用户失败");
            result.setResult("failure");
        }
        return result;
    }

package com.xdclass.mysql.inteceptor;

import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.plugin.*;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;

import java.util.Properties;
import java.util.Properties;
@Intercepts(
        @Signature(method = "query",
                type = Executor.class, args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}
        )
)
public class QueryInterceptor implements Interceptor {

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        long startTime =  System.currentTimeMillis();
        System.out.println("拦截方法开始,SQL执行----");
        Object proceed = invocation.proceed();
        System.out.println("拦截方法结束，SQL执行时间"+(System.currentTimeMillis()-startTime)+"ms----");
        return proceed;
    }

    @Override
    public Object plugin(Object target) {
        return Plugin.wrap(target,this);
    }

    @Override
    public void setProperties(Properties properties) {

    }
}

package com.xdclass.mysql.config;

import com.xdclass.mysql.inteceptor.QueryInterceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import java.util.List;

@Configuration
public class MybatisConfig {
    @Resource
    private List<SqlSessionFactory> sqlSessionFactoryList;


    @PostConstruct
    public void addMyInterceptor() {
        QueryInterceptor e = new QueryInterceptor();
        for (SqlSessionFactory sqlSessionFactory : sqlSessionFactoryList) {
            sqlSessionFactory.getConfiguration().addInterceptor(e);
        }
    }
}

package com.xdclass.mysql.config;

import com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration;
import com.xdclass.mysql.interceptor.QueryInterceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import java.util.List;

/**
 * @author daniel
 */
@Configuration
@AutoConfigureAfter(PageHelperAutoConfiguration.class)
public class LogAutoConfiguration {
    @Resource
    private List<SqlSessionFactory> sqlSessionFactoryList;

    @PostConstruct
    public void addMyInterceptor() {
        QueryInterceptor e = new QueryInterceptor();
        for (SqlSessionFactory sqlSessionFactory : sqlSessionFactoryList) {
            sqlSessionFactory.getConfiguration().addInterceptor(e);
        }
    }
}