- beforeQuery：查詢操作執(zhí)行前
- beforeUpdate：更新操作執(zhí)行前
- beforePrepare：SQL 準(zhǔn)備階段

<dependency>
   <groupId>com.baomidou</groupId>
   <artifactId>mybatis-plus-boot-starter</artifactId>
   <version>3.4.0</version>
</dependency>

compile("com.baomidou:mybatis-plus-generator:3.4.0")

package com.cmi.jego.micro.flight.admin.service.config;

import com.baomidou.mybatisplus.extension.plugins.inner.InnerInterceptor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.type.TypeHandlerRegistry;

import java.sql.SQLException;
import java.text.DateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.regex.Matcher;

/**
 * sql日志重寫
 *
 * @author zhouxy
 * @date 2025年05月08日 11:27
 */
@Slf4j
@org.springframework.context.annotation.Configuration
public class MybatisPlusLogRewrite implements InnerInterceptor {
    @Override
    public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) throws SQLException {
        log.info("beforeQuery");
        logInfo(boundSql, ms, parameter);
    }

    @Override
    public void beforeUpdate(Executor executor, MappedStatement ms, Object parameter) throws SQLException {
        log.info("beforeUpdate");
        BoundSql boundSql = ms.getBoundSql(parameter);
        logInfo(boundSql, ms, parameter);
    }

    private static void logInfo(BoundSql boundSql, MappedStatement ms, Object parameter) {
        try {
            // 獲取到節(jié)點(diǎn)的id,即sql語句的id
            String sqlId = ms.getId();
            // 獲取節(jié)點(diǎn)的配置
            Configuration configuration = ms.getConfiguration();
            // 獲取到最終的sql語句
            String sql = getSql(configuration, boundSql, sqlId);
            log.info("完整的sql:{}", sql);
        } catch (Exception e) {
            log.error("異常:{}", e.getLocalizedMessage(), e);
        }
    }

    // 封裝了一下sql語句，使得結(jié)果返回完整xml路徑下的sql語句節(jié)點(diǎn)id + sql語句
    public static String getSql(Configuration configuration, BoundSql boundSql, String sqlId) {
        return sqlId + ":" + showSql(configuration, boundSql);
    }

    // 進(jìn)行？的替換
    public static String showSql(Configuration configuration, BoundSql boundSql) {
        // 獲取參數(shù)
        Object parameterObject = boundSql.getParameterObject();
        List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
//        log.info("boundSql:{}",boundSql.getSql());
        // sql語句中多個空格都用一個空格代替
        String sql = boundSql.getSql().replaceAll("[\\s]+", " ");
        if (CollectionUtils.isNotEmpty(parameterMappings) && parameterObject != null) {
            // 獲取類型處理器注冊器，類型處理器的功能是進(jìn)行java類型和數(shù)據(jù)庫類型的轉(zhuǎn)換
            TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
            // 如果根據(jù)parameterObject.getClass(）可以找到對應(yīng)的類型，則替換
            if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
                sql = sql.replaceFirst("\\?",
                        Matcher.quoteReplacement(getParameterValue(parameterObject)));
            } else {
                // MetaObject主要是封裝了originalObject對象，提供了get和set的方法用于獲取和設(shè)置originalObject的屬性值,主要支持對JavaBean、Collection、Map三種類型對象的操作
                MetaObject metaObject = configuration.newMetaObject(parameterObject);
                for (ParameterMapping parameterMapping : parameterMappings) {
                    String propertyName = parameterMapping.getProperty();
                    if (metaObject.hasGetter(propertyName)) {
                        Object obj = metaObject.getValue(propertyName);
                        sql = sql.replaceFirst("\\?",
                                Matcher.quoteReplacement(getParameterValue(obj)));
                    } else if (boundSql.hasAdditionalParameter(propertyName)) {
                        // 該分支是動態(tài)sql
                        Object obj = boundSql.getAdditionalParameter(propertyName);
                        sql = sql.replaceFirst("\\?",
                                Matcher.quoteReplacement(getParameterValue(obj)));
                    } else {
                        // 打印出缺失，提醒該參數(shù)缺失并防止錯位
                        sql = sql.replaceFirst("\\?", "缺失");
                    }
                }
            }
        }
        return sql;
    }

    // 如果參數(shù)是String，則添加單引號， 如果是日期，則轉(zhuǎn)換為時間格式器并加單引號； 對參數(shù)是null和不是null的情況作了處理
    private static String getParameterValue(Object obj) {
        String value;
        if (obj instanceof String) {
            value = "'" + obj.toString() + "'";
        } else if (obj instanceof Date) {
            DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT,
                    DateFormat.DEFAULT, Locale.CHINA);
            value = "'" + formatter.format(new Date()) + "'";
        } else {
            if (obj != null) {
                value = obj.toString();
            } else {
                value = "";
            }
        }
        return value;
    }
}

package com.cmi.jego.micro.flight.admin.service.config;

import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;

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

/**
 * @author zhouxy
 * @date 2025年05月09日 15:58
 */
@Configuration
public class MyBatisPlusConfig {

    @Autowired
    private List<SqlSessionFactory> sqlSessionFactoryList;

    @Autowired
    private MybatisPlusLogRewrite myInnerInterceptor;

    /**
     * 添加Mybatis攔截器
     *
     * @author zhouxy
     * @date 2025/5/15 16:29
     */
    @PostConstruct
    public void addMybatisInterceptor() {
        for (SqlSessionFactory sqlSessionFactory : sqlSessionFactoryList) {
            org.apache.ibatis.session.Configuration configuration = sqlSessionFactory.getConfiguration();
            //將sql攔截器添加到MybatisPlusInterceptor攔截器鏈
            MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
            mybatisPlusInterceptor.addInnerInterceptor(myInnerInterceptor);
            configuration.addInterceptor(mybatisPlusInterceptor);
        }
    }
}