Add files via upload

ExportPkBusiness.java

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+package com.medex.mdap.sm.exportpk.business;
+
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFCellStyle;
+import org.apache.poi.hssf.usermodel.HSSFFont;
+import org.apache.poi.hssf.usermodel.HSSFRow;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.medex.mdap.base.msg.ObjectRestResponse;
+import com.medex.mdap.util.PrimaryKeyUtil;
+
+@Service
+public class ExportPkBusiness {
+	@Autowired
+	private PrimaryKeyUtil pkutil;
+	//导出主键pk
+	public ObjectRestResponse getpk (String json,HttpServletResponse response)   throws Exception{
+		String pk_group="";
+		int count=0;
+		if (json==null||json.equals("")) {
+			throw new Exception("请输入导出条数和机构编码");
+		}
+		JsonObject jsonObject =  new JsonParser().parse(json).getAsJsonObject();
+		if (jsonObject.get("pk_group")!=null&&jsonObject.get("pk_group").getAsString().length()==4) {
+			 pk_group= jsonObject.get("pk_group").getAsString();//机构编码
+		}else {
+			throw new Exception("请输入机构编码或机构编码格式不正确");
+		}
+		if (jsonObject.get("count")!=null) {
+			 count= jsonObject.get("count").getAsInt();//导出条数
+		}else {
+			throw new Exception("请输入导出条数");
+		}
+		// 第一步，创建一个webbook，对应一个Excel文件  
+		HSSFWorkbook wb = new HSSFWorkbook();  
+		// 第二步，在webbook中添加一个sheet,对应Excel文件中的sheet  
+		HSSFSheet sheet = wb.createSheet("主键");  
+		// 第三步，在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short  
+		HSSFRow row = sheet.createRow((int) 0);  
+		// 第四步，创建单元格，并设置值表头 设置表头居中  
+		HSSFCellStyle style = wb.createCellStyle();  
+		style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式  
+		HSSFFont font = wb.createFont();
+		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
+		style.setFont(font);
+		HSSFCell cell = row.createCell((short) 0);  
+		cell.setCellValue("主键");  
+		cell.setCellStyle(style);  
+		String[] pk = pkutil.getpks(pk_group,count);
+		for (int i = 0; i < pk.length; i++) {
+			row = sheet.createRow(i+1); 
+			row.createCell((short) 0).setCellValue(pk[i].toString());  
+		}
+		// 第六步，将文件存到指定位置  
+		try  
+		{  
+			response.setContentType("application/octet-stream");
+			response.setHeader("Content-disposition", "attachment;filename=" + "主键");
+			response.flushBuffer();
+			wb.write(response.getOutputStream());
+		}  
+		catch (Exception e)  
+		{  
+			e.printStackTrace();  
+		}  
+		return null;
+	}
+}