forked from fanruan/easyexcel
Jiaju Zhuang
5 years ago
committed by
GitHub
15 changed files with 229 additions and 33 deletions
@ -1,18 +0,0 @@
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name: 使用疑问 |
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about: 请先阅读“快速使用”,上面无法解决再提交问题 |
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name: 给出建议 |
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about: 给出一些建议的能 |
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title: '' |
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labels: help wanted |
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labels: suggest |
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assignees: '' |
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--- |
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**异常代码** |
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```java |
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这里写你的代码 |
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``` |
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**异常提示** |
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请提供完整的异常提示 |
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**建议描述** |
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package com.alibaba.easyexcel.test.temp.simple; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.easyexcel.test.demo.read.DemoDataListener; |
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import com.alibaba.easyexcel.test.temp.LockData; |
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import com.alibaba.excel.context.AnalysisContext; |
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import com.alibaba.excel.event.AnalysisEventListener; |
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import com.alibaba.fastjson.JSON; |
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/** |
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* 模板的读取类 |
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* |
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* @author Jiaju Zhuang |
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*/ |
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public class RepeatListener extends AnalysisEventListener<LockData> { |
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private static final Logger LOGGER = LoggerFactory.getLogger(DemoDataListener.class); |
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/** |
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* 每隔5条存储数据库，实际使用中可以3000条，然后清理list ，方便内存回收 |
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*/ |
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private static final int BATCH_COUNT = 5; |
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List<LockData> list = new ArrayList<LockData>(); |
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@Override |
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public void invoke(LockData data, AnalysisContext context) { |
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LOGGER.info("解析到一条数据:{}", JSON.toJSONString(data)); |
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list.add(data); |
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if (list.size() >= BATCH_COUNT) { |
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saveData(); |
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list.clear(); |
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} |
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} |
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@Override |
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public void doAfterAllAnalysed(AnalysisContext context) { |
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saveData(); |
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LOGGER.info("所有数据解析完成！"); |
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} |
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/** |
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* 加上存储数据库 |
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*/ |
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private void saveData() { |
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LOGGER.info("{}条数据，开始存储数据库！", list.size()); |
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LOGGER.info("存储数据库成功！"); |
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} |
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} |
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package com.alibaba.easyexcel.test.temp.simple; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.util.List; |
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import org.junit.Ignore; |
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import org.junit.Test; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.easyexcel.test.temp.LockData; |
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import com.alibaba.excel.EasyExcel; |
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import com.alibaba.excel.ExcelReader; |
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import com.alibaba.excel.read.metadata.ReadSheet; |
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import com.alibaba.fastjson.JSON; |
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/** |
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* 测试poi |
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* |
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* @author Jiaju Zhuang |
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**/ |
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@Ignore |
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public class RepeatTest { |
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private static final Logger LOGGER = LoggerFactory.getLogger(RepeatTest.class); |
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@Test |
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public void hh() throws IOException { |
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ExcelReader reader = |
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EasyExcel.read(new FileInputStream("D:\\test\\hg2.xls"), LockData.class, new RepeatListener()) |
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.headRowNumber(0).build(); |
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ReadSheet r1 = EasyExcel.readSheet(0).build(); |
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ReadSheet r2 = EasyExcel.readSheet(2).build(); |
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reader.read(r1); |
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reader.read(r2); |
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reader.finish(); |
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} |
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@Test |
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public void hh2() throws IOException { |
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ExcelReader reader = |
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EasyExcel.read(new FileInputStream("D:\\test\\sheet.xls"), LockData.class, new RepeatListener()) |
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.headRowNumber(0).build(); |
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ReadSheet r2 = EasyExcel.readSheet(1).build(); |
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reader.read(r2); |
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reader.finish(); |
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} |
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@Test |
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public void hh1() throws IOException { |
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ExcelReader reader = |
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EasyExcel.read(new FileInputStream("D:\\test\\hg2.xls"), LockData.class, new RepeatListener()) |
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.headRowNumber(0).build(); |
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ReadSheet r2 = EasyExcel.readSheet(0).build(); |
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reader.read(r2); |
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reader.finish(); |
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} |
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} |
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package com.alibaba.easyexcel.test.temp.simple; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.List; |
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import org.junit.Ignore; |
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import org.junit.Test; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.easyexcel.test.demo.write.DemoData; |
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import com.alibaba.easyexcel.test.util.TestFileUtil; |
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import com.alibaba.excel.EasyExcel; |
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import com.alibaba.excel.ExcelWriter; |
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import com.alibaba.excel.write.metadata.WriteSheet; |
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import com.alibaba.fastjson.JSON; |
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/** |
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* 测试poi |
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* |
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* @author Jiaju Zhuang |
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**/ |
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@Ignore |
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public class Wirte { |
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private static final Logger LOGGER = LoggerFactory.getLogger(Wirte.class); |
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@Test |
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public void simpleWrite() { |
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// 写法1
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String fileName = TestFileUtil.getPath() + "ttttttttt11" + System.currentTimeMillis() + ".xlsx"; |
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// 这里 需要指定写用哪个class去读，然后写到第一个sheet，名字为模板 然后文件流会自动关闭
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// 如果这里想使用03 则 传入excelType参数即可
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EasyExcel.write(fileName).sheet("模板").doWrite(data()); |
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} |
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private List<List<Object>> data() { |
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List<List<Object>> list = new ArrayList<List<Object>>(); |
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for (int i = 0; i < 10; i++) { |
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List<Object> list1 = new ArrayList<Object>(); |
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list1.add("字符串" + i); |
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list1.add(new Date()); |
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list1.add(0.56); |
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list.add(list1); |
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} |
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return list; |
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} |
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} |
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