MyBatisPlus 暂时分页失效原因及问题解决

    public PaginationInnerInterceptor paginationInnerInterceptor()
    {
        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
        // 设置数据库类型为mysql
        paginationInnerInterceptor.setDbType(DbType.MYSQL);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        // 在mybatis-plus-boot-starter 3.4.3.1及以后需要注释掉才能在设置pageSize<0时候成功暂时不分页
        // paginationInnerInterceptor.setMaxLimit(-1L);
        return paginationInnerInterceptor;
    }

    public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) throws SQLException {
            
            ......
            // 此处只有判断pageSize的值，只要小于0就可以暂时不分页
            if (page.getSize() < 0L) {
                if (addOrdered) {
                    PluginUtils.mpBoundSql(boundSql).sql(buildSql);
                }

            } else {
               ......
            }
        
    }

    public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) {
        ......

        // size 小于 0 且不限制返回值则不构造分页sql
        Long _limit = page.maxLimit() != null ? page.maxLimit() : maxLimit;
        if (page.getSize() < 0 && null == _limit) {
            if (addOrdered) {
                PluginUtils.mpBoundSql(boundSql).sql(buildSql);
            }
            return;
        }

        ......
    }