升级新版本，修复bug，提供编辑工具，提升模型转换性能

6 years ago · 5bfecbdbab
1 changed files with 28 additions and 115 deletions
--- a/README.md
+++ b/README.md
@ -1,18 +1,12 @@
 # JAVA解析Excel工具easyexcel
-
 Java解析、生成Excel比较有名的框架有Apache poi、jxl。但他们都存在一个严重的问题就是非常的耗内存，poi有一套SAX模式的API可以一定程度的解决一些内存溢出的问题，但POI还是有一些缺陷，比如07版Excel解压缩以及解压后存储都是在内存中完成的，内存消耗依然很大。easyexcel重写了poi对07版Excel的解析，能够原本一个3M的excel用POI sax依然需要100M左右内存降低到KB级别，并且再大的excel不会出现内存溢出，03版依赖POI的sax模式。在上层做了模型转换的封装，让使用者更加简单方便
-
-# 相关文档
-
+## 相关文档
 * [关于软件](/abouteasyexcel.md)
 * [快速使用](/quickstart.md)
 * [常见问题](/problem.md)
 * [更新记事](/update.md)
 * [English-README](/easyexcel_en.md)
-
-
-# 二方包 
-
+## 二方包 
 ```
 <dependency>
    <groupId>com.alibaba</groupId>
@ -20,49 +14,32 @@ Java解析、生成Excel比较有名的框架有Apache poi、jxl。但他们都
    <version>{latestVersion}</version>
 </dependency>
 ```
-
-# 最新版本
-### VERSION : 1.1.2-beat1
-
-# 维护者
+## 最新版本：1.1.2-beat1
+## 维护者
 姬朋飞（玉霄）
-
-# 快速开始
-
-## 读Excel
-
+## 快速开始
+### 读Excel
 测试代码地址：[https://github.com/alibaba/easyexcel/blob/master/src/test/java/com/alibaba/easyexcel/test/ReadTest.java](/src/test/java/com/alibaba/easyexcel/test/ReadTest.java)
 读07版小于1000行数据返回List<List<String>>
-```
-List<Object> data = EasyExcelFactory.read(inputStream, new Sheet(1, 0));
-
+```List<Object> data = EasyExcelFactory.read(inputStream, new Sheet(1, 0));
 ```
 读07版小于1000行数据返回List<? extend BaseRowModel>
-```
-List<Object> data = EasyExcelFactory.read(inputStream, new Sheet(2, 1,JavaModel.class));
-
+```List<Object> data = EasyExcelFactory.read(inputStream, new Sheet(2, 1,JavaModel.class));
 ```
 读07版大于1000行数据返回List<List<String>>
-```
-ExcelListener excelListener = new ExcelListener();
+```ExcelListener excelListener = new ExcelListener();
 EasyExcelFactory.readBySax(inputStream, new Sheet(1, 1), excelListener);
 ```

 读07版大于1000行数据返回List<? extend BaseRowModel>
-```
-ExcelListener excelListener = new ExcelListener();
+```ExcelListener excelListener = new ExcelListener();
 EasyExcelFactory.readBySax(inputStream, new Sheet(2, 1,JavaModel.class), excelListener);
 ```
 读03版方法同上
-
-
-## 写Excel
-
+### 写Excel
 测试代码地址：[https://github.com/alibaba/easyexcel/blob/master/src/test/java/com/alibaba/easyexcel/test/WriteTest.java](/src/test/java/com/alibaba/easyexcel/test/WriteTest.java)
-
 没有模板
-```
-OutputStream out = new FileOutputStream("/Users/jipengfei/2007.xlsx");
+```OutputStream out = new FileOutputStream("/Users/jipengfei/2007.xlsx");
 ExcelWriter writer = EasyExcelFactory.getWriter(out);

 //写第一个sheet, sheet1  数据全是List<String> 无模型映射关系
@ -100,8 +77,7 @@ writer.finish();
 out.close();
 ```
 有模板
-```
-InputStream inputStream = new BufferedInputStream(new FileInputStream("/Users/jipengfei/temp.xlsx"));
+```InputStream inputStream = new BufferedInputStream(new FileInputStream("/Users/jipengfei/temp.xlsx"));
 OutputStream out = new FileOutputStream("/Users/jipengfei/2007.xlsx");
 ExcelWriter writer = EasyExcelFactory.getWriterWithTemp(inputStream,out,ExcelTypeEnum.XLSX,true);

@ -140,93 +116,30 @@ writer.finish();
 out.close();
 ```

-# web下载实例写法
-package com.alibaba.china.pte.web.seller.dingtalk.rpc;
-
-import java.io.IOException;
-import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
-import javax.servlet.ServletOutputStream;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import com.alibaba.excel.ExcelWriter;
-import com.alibaba.excel.metadata.Sheet;
-import com.alibaba.excel.support.ExcelTypeEnum;
-
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-/**
- * @author jipengfei
- * @date 2018/05/25
- */
-@RequestMapping("/api/dingtalk")
-@RestController
+### web下载实例写法
+```
 public class Down {
-
    @GetMapping("/a.htm")
    public void cooperation(HttpServletRequest request, HttpServletResponse response) {
-        ServletOutputStream out = null;
-        try {
-            out = response.getOutputStream();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
+        ServletOutputStream out = response.getOutputStream();
        ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true);
-        try {
-
-            String fileName = new String(("UserInfo " + new SimpleDateFormat("yyyy-MM-dd").format(new Date()))
+        String fileName = new String(("UserInfo " + new SimpleDateFormat("yyyy-MM-dd").format(new Date()))
                .getBytes(), "UTF-8");
-            Sheet sheet1 = new Sheet(1, 0);
-            sheet1.setSheetName("第一个sheet");
-            writer.write0(getListString(), sheet1);
-            response.setContentType("multipart/form-data");
-            response.setCharacterEncoding("utf-8");
-            response.setHeader("Content-disposition", "attachment;filename="+fileName+".xlsx");
-            out.flush();
-
-        } catch (Exception e) {
-            e.printStackTrace();
-        }finally {
-            writer.finish();
-            try {
-                out.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-
+        Sheet sheet1 = new Sheet(1, 0);
+        sheet1.setSheetName("第一个sheet");
+        writer.write0(getListString(), sheet1);
+        response.setContentType("multipart/form-data");
+        response.setCharacterEncoding("utf-8");
+        response.setHeader("Content-disposition", "attachment;filename="+fileName+".xlsx");
+         out.flush();
        }
    }
-
-    private List<List<String>> getListString() {
-        List<String> list = new ArrayList<String>();
-        list.add("ooo1");
-        list.add("ooo2");
-        list.add("ooo3");
-        list.add("ooo4");
-        List<String> list1 = new ArrayList<String>();
-        list1.add("ooo1");
-        list1.add("ooo2");
-        list1.add("ooo3");
-        list1.add("ooo4");
-        List<List<String>> ll = new ArrayList<List<String>>();
-        ll.add(list);
-        ll.add(list1);
-        return ll;
-    }
-
 }
-
-# 联系我们
-
+```
+### 联系我们
 有问题阿里同事可以通过钉钉找到我，阿里外同学可以通过git留言。其他技术非技术相关的也欢迎一起探讨。
-
-# 招聘
+### 招聘
 阿里巴巴新零售事业部--诚招JAVA资深开发、技术专家。有意向可以微信联系，简历可以发我邮箱jipengfei.jpf@alibaba-inc.com
 可以走内推流程
+
 ![img](https://github.com/alibaba/easyexcel/blob/master/img/weixin1.png)