java代码实现导出Excel表格工具ssm框架mavenidea
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第一步、导入依赖
<!--生成excel文件--> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.9</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-examples</artifactId> <version>3.9</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-excelant</artifactId> <version>3.9</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.9</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml-schemas</artifactId> <version>3.9</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-scratchpad</artifactId> <version>3.9</version> </dependency>
第二步,编写实体类
public class Zhi private String url; //地址 private String Requestbody; //请求体 private String Responsebody; //响应体 @Override public String toString() return "Zhi" + "url=‘" + url + ‘\\‘‘ + ", Requestbody=‘" + Requestbody + ‘\\‘‘ + ", Responsebody=‘" + Responsebody + ‘\\‘‘ + ‘‘; public String getUrl() return url; public void setUrl(String url) this.url = url; public String getRequestbody() return Requestbody; public void setRequestbody(String requestbody) Requestbody = requestbody; public String getResponsebody() return Responsebody; public void setResponsebody(String responsebody) Responsebody = responsebody;
第三步、编写表格生成工具
import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; public class ExcelUtil /** * 导出Excel * @param sheetName sheet名称 * @param title 标题 * @param values 内容 * @param wb HSSFWorkbook对象 * @return */ public static HSSFWorkbook getHSSFWorkbook(String sheetName,String []title,String [][]values, HSSFWorkbook wb) // 第一步,创建一个HSSFWorkbook,对应一个Excel文件 if(wb == null) wb = new HSSFWorkbook(); // 第二步,在workbook中添加一个sheet,对应Excel文件中的sheet HSSFSheet sheet = wb.createSheet(sheetName); // 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 HSSFRow row = sheet.createRow(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 //声明列对象 HSSFCell cell = null; //创建标题 for(int i=0;i<title.length;i++) cell = row.createCell(i); cell.setCellValue(title[i]); cell.setCellStyle(style); //创建内容 for(int i=0;i<values.length;i++) row = sheet.createRow(i + 1); for(int j=0;j<values[i].length;j++) //将内容按顺序赋给对应的列对象 row.createCell(j).setCellValue(values[i][j]); return wb;
第四步、编写controller层
import cn.kgc.pojo.Account; import cn.kgc.pojo.Zhi; import cn.kgc.service.impl.ExcelUtil; import cn.kgc.service.impl.SalaryServiceImpl; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.jsp.tagext.PageData; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.List; import java.util.Random; @Controller @RequestMapping(value = "/report") public class ReportFormController //@Resource(name = "reportService") //private ReportManager reportService; @Resource(name = "aoo") SalaryServiceImpl salaryService; /** * 导出报表 * @return */ @RequestMapping(value = "/export") @ResponseBody public void export(HttpServletRequest request, HttpServletResponse response) throws Exception //获取数据 List<Zhi> list = new ArrayList<Zhi>(); Zhi zhi=null; /*生成随机数*/ Random random = new Random(); for(int i=0;i<100;i++) int a = (int)(random.nextInt(900))+100; zhi=new Zhi(); zhi.setUrl("/NGCRMPF_GS_CGSHQGETFULLUSRINFO_POST"); zhi.setRequestbody("\\"params\\":\\"object\\":\\"ServiceNo:13919892"+a+"\\""); zhi.setResponsebody("\\"rtnCode\\":\\"0\\",\\"rtnMsg\\":\\"成功!\\",\\"bean\\":,\\"beans\\":[],\\"object\\":\\"0~success~0~75~0~正常~01~58元新飞享套餐~1~0931\\""); list.add(zhi); //excel标题 String[] title = "请求地址","请求体","响应体"; //excel文件名 String fileName = "学生信息表"+System.currentTimeMillis()+".xls"; //sheet名 String sheetName = "学生信息表"; String [][] content = new String[list.size()][]; for (int i = 0; i < list.size(); i++) content[i] = new String[title.length]; Zhi obj = list.get(i); content[i][0] = obj.getUrl()+""; content[i][1] = obj.getRequestbody()+""; content[i][2] = obj.getResponsebody()+""; //创建HSSFWorkbook HSSFWorkbook wb = ExcelUtil.getHSSFWorkbook(sheetName, title, content, null); //响应到客户端 try this.setResponseHeader(response, fileName); OutputStream os = response.getOutputStream(); wb.write(os); os.flush(); os.close(); catch (Exception e) e.printStackTrace(); //发送响应流方法 public void setResponseHeader(HttpServletResponse response, String fileName) try try fileName = new String(fileName.getBytes(),"ISO8859-1"); catch (UnsupportedEncodingException e) // TODO Auto-generated catch block e.printStackTrace(); response.setContentType("application/octet-stream;charset=ISO8859-1"); response.setHeader("Content-Disposition", "attachment;filename="+ fileName); response.addHeader("Pargam", "no-cache"); response.addHeader("Cache-Control", "no-cache"); catch (Exception ex) ex.printStackTrace();
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第五步 编写jsp部分 调用一下即可
<a href="$pageContext.request.contextPath/report/export">导出Excel表格</a>
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