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README
Apache-2.0

ipan-poi3

介绍

Excel导入

简要描述: 简单说,是从文件到数据库的处理过程;大致是根据导入XML配置文件,将文件记录转换为实体类,然后保存至数据库; 处理过程,将配置、解析、业务、数据验证、数据保存分离,可以灵活定义各种需求; 1 支持导入结果记录、导入失败记录、导入文件备份; 2 支持导入sheet的开始行的位置指定; 3 支持多个sheet导入; 4 支持单元格类型转换自定义,可以将一个单元格拆分为多个属性,可以自定义解析器; 5 支持所有版本的Excel;

要求: 一个数据sheet的第一列必须不能为空!可以是自动编号的序列,用于获取实际的行数; (Excel默认清除内容后实际行数还在,为了避免错误解析,所以,第一列用于获取真实行数。);

Excel导出

简要描述: 简单说,是从数据库到文件的处理过程;大致是根据导出XML配置文件,查询数据库并将结果集按照定义格式,导出到excel文件并写入输出流; 处理过程,将业务查询、excel文件生成、excel文件样式分离,可以灵活定义各种需求; 1 支持自定义导出样式(字体、字体大小、背景色);分为标题样式、正文样式; 2 支持自定义数字、日期时间格式化;可以在配置文件中配置格式化字符串,格式化字符串参考Excel的单元格格式的数字格式; 3 支持导出实体列表List;大部分时候导出excel是跟具体业务相关的,所以一般我们的业务层已经做了查询功能,所以,导出excel可以 直接传入结果集合进行导出; 4 支持导出Map<String, Object>; 5 支持导出JDBC查询结果集合ResultSet; 6 支持在配置文件中配置简单的查询条件,查询并导出结果集合; 7 支持动态过滤导出字段,传入要导出的字段后,仅导出需要导出的字段;

说明:该导入导出组件,不跟特定的框架耦合,当然apache的公共框架除外;使用的时候,可以在该组件基础上,针对项目框架(比如:SSH框架) 与自身业务做一次简单封装;组件的设计目的是抗变动、轻耦合、可自定义;

iPan 2013-09-21

软件架构

项目依赖 ipan-kits、dom4j、poi4、common-lang3; 可选依赖有 xdocreport、ejb3;

输入图片说明

输入图片说明

安装教程

<dependency>
    <groupId>com.ipan</groupId>
    <artifactId>ipan-poi3</artifactId>
    <version>3.0.2</version>
</dependency>

使用说明

导入流程
  1. 根据className查找配置文件;
  2. 初始化导入处理器Hander的init方法;
  3. 单sheet还是多sheet,多sheet则循环解析;
  4. 开始导入,记录日志;
  5. 根据第一列获取有效的总行数;
  6. Hander的parser方法做解析,一行记录解析至JavaBean;
  7. 解析失败的记录全部记录到错误xls文件中,以及失败条数+1;
  8. Hander的save方法,先检测记录是否存在,存在执行更新,不存在执行插入;
  9. 保存失败的记录全部记录到错误xls文件中,以及失败条数+1;
  10. 全部成功,将导入文件移到导入成功目录下,记录导入结果;
  11. 部分失败,将导入文件移到导入失败目录下,记录导入结果;
  12. 记录导入结束,写入错误记录文件xls到磁盘;
  13. Hander的saveAsFile导入文件另存为方法,默认不处理,若有需要,则重载该方法;
  14. 返回导入结果;
导出流程
  1. 支持实体类列表、Map列表、ResultSet列表导出,以及根据配置文件去自动查询后导出;
  2. 开始导入,记录日志;
  3. 写入xls文件标题;
  4. 写入xls文件正文;
  5. 导出成功/导出失败,记录日志;
  6. 导出结束,记录日志;
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apache poi导入/导出Excel工具包 展开 收起
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