mybatis-plus配置拦截器实现完整sql打印

    @PostMapping(value = "update")
    public Result<String> update(@RequestBody @Validated(value = UpdateGroup.class) User user) {
        int update = userMapper.updateById(user);
        return update > 0 ? Result.ok(null) : Result.err(null);
    }

    @GetMapping(value = "get")
    public Result<List<User>> get(@RequestParam(value = "id", required = false) Integer id,
                                  @RequestParam(value = "name", required = false) String name
    ) {
        LambdaQueryWrapper<User> queryChainWrapper = new LambdaQueryWrapper<>();
        queryChainWrapper.eq(id != null, User::getId, id);
        queryChainWrapper.eq(name != null, User::getUsername, name);
        List<User> records = userMapper.selectPage(new Page<User>(0, 10), queryChainWrapper).getRecords();
        return Result.ok(records);
    }

/**
 * @author shigenfu
 * @date 2024/6/16 10:01
 */
@Intercepts({
        @Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}),
        @Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}),
        @Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class})
})
@Slf4j
public class SqlInterceptor implements Interceptor {

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        // 统计sql执行耗时
        long startTime = System.currentTimeMillis();
        Object proceed = invocation.proceed();
        long endTime = System.currentTimeMillis();

        String printSql = null;
        try {
            printSql = generateSql(invocation);
        } catch (Exception exception) {
            log.error("获取sql异常", exception);
        } finally {
            long costTime = endTime - startTime;
            log.info("\n 执行SQL耗时：{}ms \n 执行SQL：{}", costTime, printSql);
        }
        return proceed;
    }

    private static String generateSql(Invocation invocation) {

        MappedStatement statement = (MappedStatement) invocation.getArgs()[0];
        Object parameter = null;
        if (invocation.getArgs().length > 1) {
            parameter = invocation.getArgs()[1];
        }
        Configuration configuration = statement.getConfiguration();
        BoundSql boundSql = statement.getBoundSql(parameter);

        // 获取参数对象
        Object parameterObject = boundSql.getParameterObject();
        // 获取参数映射
        List<ParameterMapping> params = boundSql.getParameterMappings();
        // 获取到执行的SQL
        String sql = boundSql.getSql();
        // SQL中多个空格使用一个空格代替
        sql = sql.replaceAll("[\\s]+", " ");
        if (!ObjectUtils.isEmpty(params) && !ObjectUtils.isEmpty(parameterObject)) {
            // TypeHandlerRegistry 是 MyBatis 用来管理 TypeHandler 的注册器 TypeHandler 用于在 Java 类型和 JDBC 类型之间进行转换
            TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
            // 如果参数对象的类型有对应的 TypeHandler，则使用 TypeHandler 进行处理
            if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
                sql = sql.replaceFirst("\\?", Matcher.quoteReplacement(getParameterValue(parameterObject)));
            } else {
                // 否则，逐个处理参数映射
                for (ParameterMapping param : params) {
                    // 获取参数的属性名
                    String propertyName = param.getProperty();
                    MetaObject metaObject = configuration.newMetaObject(parameterObject);
                    // 检查对象中是否存在该属性的 getter 方法，如果存在就取出来进行替换
                    if (metaObject.hasGetter(propertyName)) {
                        Object obj = metaObject.getValue(propertyName);
                        sql = sql.replaceFirst("\\?", Matcher.quoteReplacement(getParameterValue(obj)));
                        // 检查 BoundSql 对象中是否存在附加参数
                    } else if (boundSql.hasAdditionalParameter(propertyName)) {
                        Object obj = boundSql.getAdditionalParameter(propertyName);
                        sql = sql.replaceFirst("\\?", Matcher.quoteReplacement(getParameterValue(obj)));
                    } else {
                        // SQL匹配不上，带上“缺失”方便找问题
                        sql = sql.replaceFirst("\\?", "缺失");
                    }
                }
            }
        }
        return sql;
    }

    private static String getParameterValue(Object object) {
        String value = "";
        if (object instanceof String) {
            value = "'" + object + "'";
        } else if (object instanceof Date) {
            DateFormat format = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.CHINA);
            value = "'" + format.format((Date) object) + "'";
        } else if (!ObjectUtils.isEmpty(object)) {
            value = object.toString();
        }
        return value;
    }

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

}

@Configuration
@MapperScan(value = "main.java.shigen.demo.dao")
public class MybatisPlusConfig {

    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        // 分页插件
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        // 乐观锁插件
        interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
        return interceptor;
    }

    @Bean
    public ConfigurationCustomizer configurationCustomizer() {
        return configuration -> {
            configuration.addInterceptor(new SqlInterceptor());
        };
    }
}