新增测试案例

easyexcel-test/src/test/java/com/alibaba/easyexcel/test/temp/WriteLargeTest.java

@@ -1,5 +1,8 @@
 package com.alibaba.easyexcel.test.temp;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -15,6 +18,18 @@ import com.alibaba.excel.write.metadata.style.WriteFont;
 import com.alibaba.excel.write.style.HorizontalCellStyleStrategy;
 
 import lombok.extern.slf4j.Slf4j;
+import org.apache.poi.hssf.eventusermodel.HSSFEventFactory;
+import org.apache.poi.hssf.eventusermodel.HSSFListener;
+import org.apache.poi.hssf.eventusermodel.HSSFRequest;
+import org.apache.poi.hssf.record.BOFRecord;
+import org.apache.poi.hssf.record.BoundSheetRecord;
+import org.apache.poi.hssf.record.Record;
+import org.apache.poi.hssf.record.SSTRecord;
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFRow;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.poifs.filesystem.POIFSFileSystem;
 import org.apache.poi.ss.usermodel.FillPatternType;
 import org.apache.poi.ss.usermodel.IndexedColors;
 import org.junit.jupiter.api.Test;
@@ -83,6 +98,76 @@ public class WriteLargeTest {
 
     }
 
+    @Test
+    public void read2() throws Exception {
+        // 使用输入的文件创建一个新的文件输入流
+        //FileInputStream fin = new FileInputStream("/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a
+        // .xls");
+        // 创建一个新的org.apache.poi.poifs.filesystem.Filesystem
+        POIFSFileSystem poifs = new POIFSFileSystem(
+            new File("/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a.xls"));
+        // 在InputStream中获取Workbook流
+        InputStream din = poifs.createDocumentInputStream("Workbook");
+        // 构造出HSSFRequest对象
+        HSSFRequest req = new HSSFRequest();
+        // 注册全部的监听器
+        req.addListenerForAllRecords(new EventExample());
+        // 创建事件工厂
+        HSSFEventFactory factory = new HSSFEventFactory();
+        // 根据文档输入流处理我们监听的事件
+        factory.processEvents(req, din);
+        // 关闭文件输入流
+        //fin.close();
+        // 关闭文档输入流
+        din.close();
+        System.out.println("读取结束");
+    }
+
+    @Test
+    public void read3() throws Exception {
+        HSSFWorkbook hwb = new HSSFWorkbook(
+            new FileInputStream("/Users/zhuangjiaju/Downloads/1e9e0578a9634abbbbd9b67f338f142a.xls"));
+        HSSFSheet sheet = hwb.getSheetAt(0);
+        HSSFRow row = null;
+        HSSFCell cell = null;
+        for (int i = sheet.getFirstRowNum(); i <= sheet.getPhysicalNumberOfRows(); i++) {
+            row = sheet.getRow(i);
+            if(row!=null){
+                log.info("r:{}",row.getRowNum());
+
+            }
+        }
+
+        log.info("end");
+    }
+
+    public static class EventExample implements HSSFListener {
+        private SSTRecord sstrec;
+
+        /**
+         * 此方法监听传入记录并根据需要处理它们
+         *
+         * @param record读取时找到的记录
+         */
+        public void processRecord(Record record) {
+            switch (record.getSid()) {
+                //BOFRecord可以表示工作表或工作簿的开头
+                case BOFRecord.sid:
+                    BOFRecord bof = (BOFRecord)record;
+                    if (bof.getType() == bof.TYPE_WORKBOOK) {
+                        System.out.println("监听到工作表");
+                    } else if (bof.getType() == bof.TYPE_WORKSHEET) {
+                        System.out.println("监听到工作簿");
+                    }
+                    break;
+                case BoundSheetRecord.sid:
+                    BoundSheetRecord bsr = (BoundSheetRecord)record;
+                    System.out.println("工作簿名称: " + bsr.getSheetname());
+                    break;
+            }
+        }
+    }
+
     @Test
     public void test2() throws Exception {
         // 方法2 如果写到不同的sheet 同一个对象