提交POI导出Excel导出功能

uboot-common/src/main/java/com/chinaunicom/mall/ebtp/common/poiExport/constant/ExportConstant.java

@@ -8,9 +8,8 @@ import org.apache.poi.ss.util.CellRangeAddress;
 import org.apache.poi.ss.util.CellRangeAddressList;
 import org.apache.poi.xssf.usermodel.*;
 
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
+import javax.servlet.http.HttpServletResponse;
+import java.io.*;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -247,4 +246,35 @@ public class ExportConstant {
             sheet.setColumnWidth(i,colList.get(i));//列宽
         }
     }
+
+    public static void exportFile(HttpServletResponse response,File file){
+        OutputStream out = null;
+        InputStream is = null;
+        try {
+            response.addHeader("content-disposition", "attachment;filename="
+                    + java.net.URLEncoder.encode(file.getName(), "utf-8"));
+            out = response.getOutputStream();
+             is = new FileInputStream(file);
+
+            byte[] b = new byte[4096];
+            int size = is.read(b);
+            while (size > 0) {
+                out.write(b, 0, size);
+                size = is.read(b);
+            }
+            out.close();
+            is.close();
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if(is!=null)is.close();
+                if(out!=null)out.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            file.delete();
+        }
+    }
 }

uboot-common/src/main/java/com/chinaunicom/mall/ebtp/common/poiExport/constant/ExportText.java

@@ -11,6 +11,7 @@ import java.util.List;
 public class ExportText {
     public static void main(String[] arge){
         ExcelTable table = new ExcelTable("测试1");
+        table.setFileName("测试11");
         List<ExcelTd> list = new ArrayList<>();
         list.add(new ExcelTd().setTdValue("1111"));
         list.add(new ExcelTd().setTdValue("1222"));
@@ -20,17 +21,19 @@ public class ExportText {
 
         table.add(new ExcelTr().setExcelTdList(list));
         OutputStream os = null;
+        File file = null;
+        InputStream inputStream = null;
         try {
-            String path = "D:/恒熠/联通/需求/3.0/评审/common测试.xlsx";
-            File file = ExportConstant.generateExcelByTable(table);
-            InputStream inputStream = new FileInputStream(file);
+            String path = "D:/恒熠/联通/需求/3.0/评审/";
+            file = ExportConstant.generateExcelByTable(table);
+            inputStream = new FileInputStream(file);
             // 1K的数据缓冲
             byte[] bs = new byte[1024];
             // 读取到的数据长度
             int len;
             // 输出的文件流保存到本地文件
 
-            File tempFile = new File(path);
+            File tempFile = new File(path+file.getName());
             os = new FileOutputStream(tempFile);
             // 开始读取
             while ((len = inputStream.read(bs)) != -1) {
@@ -38,6 +41,17 @@ public class ExportText {
             }
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+                try {
+                    if(inputStream!=null)inputStream.close();
+                    if(os!=null)os.close();
+
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            if(file!=null){
+                file.delete();
+            }
         }
     }
 }