SpringBoot mybatis pageHelper5.0.0配置

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网上很多资料都是老旧的资料

两种方式添加SpringBoot插件：

第一种：

1. build.gradle

compile 'com.github.pagehelper:pagehelper:5.0.0'

2. 创建MybatisConfig.java

package org.openmore.coursemore.configuration;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInterceptor;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import tk.mybatis.spring.mapper.MapperScannerConfigurer;

import java.beans.PropertyVetoException;
import java.util.Properties;

/**
 * Created by michaeltang on 2018/3/22.
 */
@Configuration
public class MyBatisConfig {//implements TransactionManagementConfigurer {
    @Autowired
    private Environment env;

    @Bean
    public ComboPooledDataSource dataSource() {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setMinPoolSize(Integer.parseInt(env.getProperty("spring.datasource.min-pool-size")));
        dataSource.setMaxPoolSize(Integer.parseInt(env.getProperty("spring.datasource.max-pool-size")));
        dataSource.setMaxIdleTime(Integer.parseInt(env.getProperty("spring.datasource.max-idle-time")));
        dataSource.setJdbcUrl(env.getProperty("spring.datasource.url"));
        dataSource.setPassword(env.getProperty("spring.datasource.password"));
        dataSource.setUser(env.getProperty("spring.datasource.username"));
        try {
            dataSource.setDriverClass(env.getProperty("spring.datasource.driver"));
        } catch (PropertyVetoException e) {
            e.printStackTrace();
        }
        return dataSource;
    }

    @Bean(name = "sqlSessionFactory")
    public SqlSessionFactory sqlSessionFactory() {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource());
        bean.setTypeAliasesPackage("org.openmore.coursemore.entity");

        //分页插件
        PageInterceptor iterceptor = new PageInterceptor();
        Properties properties = new Properties();
        properties.setProperty("reasonable", "true");
        properties.setProperty("supportMethodsArguments", "true");
        properties.setProperty("returnPageInfo", "check");
        properties.setProperty("params", "count=countSql");
        iterceptor.setProperties(properties);
        PageInterceptor[] interceptors = new PageInterceptor[]{iterceptor};
        //添加插件
        bean.setPlugins(interceptors);

//        也可以在mybatis-config.xml里添加插件

        //添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        try {
            bean.setMapperLocations(resolver.getResources("classpath:mapper/*.xml"));
            bean.setConfigLocation(resolver.getResource("classpath:mybatis-config.xml"));
            return bean.getObject();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

    @Bean
    public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer() {
        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
        mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory");
        mapperScannerConfigurer.setBasePackage("org.openmore.coursemore.dao");
        return mapperScannerConfigurer;
    }
}

第二种：配置到mybatis-config文件里

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!-- 配置全局属性 -->
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true"/>

        <!-- 使用列别名替换列名 默认:true -->
        <setting name="useColumnLabel" value="true"/>

        <!-- 开启驼峰命名转换:Table{create_time} -> Entity{createTime} -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <!--不要添加这句话，5.0.0开始自动识别mysql <property name="dialect" value="mysql"/>-->
        </plugin>
    </plugins>
</configuration>

以上