package com.xfl.pingguopai.configurer;

import com.github.pagehelper.PageHelper;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import tk.mybatis.spring.mapper.MapperScannerConfigurer;

import javax.sql.DataSource;
import java.util.Properties;

import static com.xfl.pingguopai.common.MyConstant.MAPPER_INTERFACE_REFERENCE;
import static com.xfl.pingguopai.common.MyConstant.MAPPER_PACKAGE;
import static com.xfl.pingguopai.common.MyConstant.MODEL_PACKAGE;

/**
 * Mybatis & Mapper & PageHelper 配置
 */
@Configuration
public class MybatisConfigurer {

    @Bean
    public static SqlSessionFactory sqlSessionFactoryBean(DataSource dataSource) throws Exception {
        SqlSessionFactoryBean factory = new SqlSessionFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTypeAliasesPackage(MODEL_PACKAGE);

        //配置分页插件，详情请查阅官方文档
        PageHelper pageHelper = new PageHelper();
        Properties properties = new Properties();
        properties.setProperty("pageSizeZero", "true");
        properties.setProperty("reasonable", "true");
        properties.setProperty("supportMethodsArguments", "true");
        pageHelper.setProperties(properties);

        //添加插件
        factory.setPlugins(new Interceptor[]{pageHelper});

        //添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        factory.setMapperLocations(resolver.getResources("classpath:mapper/*.xml"));
        return factory.getObject();
    }

    @Bean
    public static MapperScannerConfigurer mapperScannerConfigurer() {
        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
        mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactoryBean");
        mapperScannerConfigurer.setBasePackage(MAPPER_PACKAGE);

        //配置通用Mapper，详情请查阅官方文档
        Properties properties = new Properties();
        properties.setProperty("mappers", MAPPER_INTERFACE_REFERENCE);
        properties.setProperty("notEmpty", "false");//insert、update是否判断字符串类型!='' 即 test="str != null"表达式内是否追加 and str != ''
        properties.setProperty("IDENTITY", "MYSQL");
        mapperScannerConfigurer.setProperties(properties);

        return mapperScannerConfigurer;
    }

}


package com.xfl.pingguopai.configurer;

import com.github.pagehelper.PageHelper;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import tk.mybatis.spring.mapper.MapperScannerConfigurer;

import javax.sql.DataSource;
import java.util.Properties;

import static com.xfl.pingguopai.common.MyConstant.MAPPER_INTERFACE_REFERENCE;
import static com.xfl.pingguopai.common.MyConstant.MAPPER_PACKAGE;
import static com.xfl.pingguopai.common.MyConstant.MODEL_PACKAGE;

/**
 * Mybatis & Mapper & PageHelper 配置
 */
@Configuration
public class MybatisConfigurer {

    @Bean
    public static SqlSessionFactory sqlSessionFactoryBean(DataSource dataSource) throws Exception {
        SqlSessionFactoryBean factory = new SqlSessionFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTypeAliasesPackage(MODEL_PACKAGE);

        //配置分页插件，详情请查阅官方文档
        PageHelper pageHelper = new PageHelper();
        Properties properties = new Properties();
        properties.setProperty("pageSizeZero", "true");
        properties.setProperty("reasonable", "true");
        properties.setProperty("supportMethodsArguments", "true");
        pageHelper.setProperties(properties);

        //添加插件
        factory.setPlugins(new Interceptor[]{pageHelper});

        //添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        factory.setMapperLocations(resolver.getResources("classpath:mapper/*.xml"));
        return factory.getObject();
    }

    @Bean
    public static MapperScannerConfigurer mapperScannerConfigurer() {
        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
        mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactoryBean");
        mapperScannerConfigurer.setBasePackage(MAPPER_PACKAGE);

        //配置通用Mapper，详情请查阅官方文档
        Properties properties = new Properties();
        properties.setProperty("mappers", MAPPER_INTERFACE_REFERENCE);
        properties.setProperty("notEmpty", "false");
        properties.setProperty("IDENTITY", "MYSQL");
        mapperScannerConfigurer.setProperties(properties);

        return mapperScannerConfigurer;
    }

}


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