一、java项目实现读取Excel文件和导出Excel文件
实现读取和导出Excel文件的代码：
package servlet;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.List;import jxl.Cell;import jxl.Sheet;import jxl.Workbook;import jxl.format.Alignment;import jxl.format.Border;import jxl.format.BorderLineStyle;import jxl.format.CellFormat;import jxl.format.Colour;import jxl.read.biff.BiffException;import jxl.write.Label;import jxl.write.WritableCellFormat;import jxl.write.WritableFont;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;import jxl.write.WriteException;public class Excel { /** * @param args * Excel读写程序 * @throws IOException * @throws BiffException */ public static void main(String[] args) throws BiffException, IOException { //导出Excel文件 writeExcel(); //读取Excel文件 //readExcel(); } //读Excel文件 public static void readExcel() throws BiffException, IOException{ //创建一个list 用来存储读取的内容 List list = new ArrayList(); Workbook rwb = null; Cell cell = null; //创建输入流 InputStream stream = new FileInputStream("d:\\testJXL.xls"); //获取Excel文件对象 rwb = Workbook.getWorkbook(stream); //获取文件的指定工作表 默认的第一个 Sheet sheet = rwb.getSheet(0); //行数(表头的目录不需要，从1开始) for(int i=0; i 导出结果:
二、web项目中实现导出Excel文件
2.1、新建动态web项目
新建项目后在项目中添加jxl-2.6.jar文件和servlet-api.jar文件。
2.2、新建数据实体对象Member.java
package entity;import java.util.Date;public class Member implements java.io.Serializable { // Fields private String id; private String checkOrg; private String sn; private String memberName; private String sex; private String cardId; private String duty; private String title; private String academic; private String special; private String workTime; private String memo; private String role; private Date lastModify; private Date regTime; // Constructors /** default constructor */ public Member() { } /** full constructor */ public Member(String checkOrg, String sn, String memberName, String sex, String cardId, String duty, String title, String academic, String special, String workTime, String memo, String role, Date lastModify, Date regTime) { this.checkOrg = checkOrg; this.sn = sn; this.memberName = memberName; this.sex = sex; this.cardId = cardId; this.duty = duty; this.title = title; this.academic = academic; this.special = special; this.workTime = workTime; this.memo = memo; this.role = role; this.lastModify = lastModify; this.regTime = regTime; } // Property accessors public String getId() { return this.id; } public void setId(String id) { this.id = id; } public String getCheckOrg() { return this.checkOrg; } public void setCheckOrg(String checkOrg) { this.checkOrg = checkOrg; } public String getSn() { return this.sn; } public void setSn(String sn) { this.sn = sn; } public String getMemberName() { return this.memberName; } public void setMemberName(String memberName) { this.memberName = memberName; } public String getSex() { return this.sex; } public void setSex(String sex) { this.sex = sex; } public String getCardId() { return this.cardId; } public void setCardId(String cardId) { this.cardId = cardId; } public String getDuty() { return this.duty; } public void setDuty(String duty) { this.duty = duty; } public String getTitle() { return this.title; } public void setTitle(String title) { this.title = title; } public String getAcademic() { return this.academic; } public void setAcademic(String academic) { this.academic = academic; } public String getSpecial() { return this.special; } public void setSpecial(String special) { this.special = special; } public String getWorkTime() { return this.workTime; } public void setWorkTime(String workTime) { this.workTime = workTime; } public String getMemo() { return this.memo; } public void setMemo(String memo) { this.memo = memo; } public String getRole() { return this.role; } public void setRole(String role) { this.role = role; } public Date getLastModify() { return lastModify; } public void setLastModify(Date lastModify) { this.lastModify = lastModify; } public Date getRegTime() { return regTime; } public void setRegTime(Date regTime) { this.regTime = regTime; }} 2.3、添加servlet文件:ExportExlServlet.java
package servlet;import java.io.IOException;import java.io.OutputStream;import java.util.ArrayList;import java.util.Date;import java.util.List;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import jxl.Workbook;import jxl.format.Border;import jxl.format.BorderLineStyle;import jxl.format.Colour;import jxl.format.VerticalAlignment;import jxl.read.biff.BiffException;import jxl.write.Label;import jxl.write.WritableCellFormat;import jxl.write.WritableFont;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;import jxl.write.WriteException;import jxl.write.biff.RowsExceededException;import entity.Member;public class ExportExlServlet extends HttpServlet { private WritableWorkbook wwb = null; private WritableSheet sheet = null; private WritableSheet sheetk = null; private WritableSheet sheeth = null; @Override protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String checkOrgId = null; String orgName = "XX单位"; try { exportCheckOrgMember(checkOrgId, orgName, response); } catch (RowsExceededException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } exportExcel(response, wwb, orgName + "人员明细表"); } /** * 导出数据处理 * @param checkOrgId * @param orgName * @param response * @throws IOException * @throws RowsExceededException * @throws WriteException */ private void exportCheckOrgMember(String checkOrgId,String orgName, HttpServletResponse response) throws IOException, RowsExceededException, WriteException { //此处listMember需要从数据库中取值 List listMember = new ArrayList (); Member member1 = new Member("str", "str", "str", "str", "str", "str", "str", "str", "str", "str", "隶书", "str", new Date(), new Date()); listMember.add(member1); listMember.add(member1); listMember.add(member1); System.out.println(listMember.size()+"***"); response.setContentType("application/ms-excel"); String sheetName_ = orgName + "人员明细表";//文件名==》XX人员明细表 String sheetName = new String(sheetName_.getBytes(),"iso8859-1"); response.addHeader("Content-Disposition", "attachment;filename="+ sheetName + ".xls"); OutputStream os = response.getOutputStream(); wwb = Workbook.createWorkbook(os); wwb.setProtected(false); //EXECL中的一个sheet sheetk = wwb.createSheet("人员明细", 0); //============设置execl表的一些属性=========== WritableFont wf = new WritableFont(WritableFont.ARIAL, 13,WritableFont.BOLD, false); WritableCellFormat wcf = new WritableCellFormat(wf); WritableFont wf1 = new WritableFont(WritableFont.ARIAL, 13,WritableFont.NO_BOLD, false); WritableCellFormat wcf1 = new WritableCellFormat(wf1); wcf.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); wcf.setVerticalAlignment(VerticalAlignment.CENTRE); wcf1.setBorder(Border.ALL, BorderLineStyle.THIN, Colour.BLACK); wcf1.setVerticalAlignment(VerticalAlignment.CENTRE); //============设置execl表的一些属性======END===== /*sheetk.mergeCells(0, 0, 9, 0); sheetk.addCell(new Label(0, 0, "人员明细表《这是合并的单元格》", wcf)); //添加单元格 new Label(列位置，行位置，单元格内容，WritableCellFormat对象) //此处第二个参数1，代表第二行，上面合并的单元格是第一行 sheetk.addCell(new Label(0, 1, "序号", wcf)); sheetk.addCell(new Label(1, 1, "姓名", wcf)); sheetk.addCell(new Label(2, 1, "性别", wcf)); sheetk.addCell(new Label(3, 1, "身份证号", wcf)); sheetk.addCell(new Label(4, 1, "学历", wcf)); sheetk.addCell(new Label(5, 1, "专业", wcf)); sheetk.addCell(new Label(6, 1, "职称", wcf)); sheetk.addCell(new Label(7, 1, "职务", wcf)); sheetk.addCell(new Label(8, 1, "角色", wcf)); sheetk.addCell(new Label(9, 1, "备注", wcf));*/ String[] title = {"编号", "姓名", "性别", "身份证号", "学历", "专业", "职称", "职务", "角色", "备注"}; Label label; for (int i = 0; i < title.length; i++) { // Label(x,y,z) 代表单元格的第x+1列，第y+1行, 内容z // 在Label对象的子对象中指明单元格的位置和内容 //label = new Label(i, 0, title[i]); label = new Label(i, 0, title[i], Excel.getHeader()); // 将定义好的单元格添加到工作表中 sheetk.addCell(label); } // 设置字体 jxl.write.WritableFont wfont = new jxl.write.WritableFont(WritableFont.createFont("隶书"), 20); WritableCellFormat font = new WritableCellFormat(wfont); //循环数据，将数据填充到单元格内 int t = 1; for (Member member:listMember) { sheetk.addCell(new Label(0, t, t+"", wcf1)); sheetk.addCell(new Label(1, t, member.getMemberName(), wcf1)); sheetk.addCell(new Label(2, t, member.getSex(), wcf1)); sheetk.addCell(new Label(3, t, member.getCardId(), wcf1)); sheetk.addCell(new Label(4, t, member.getAcademic(), wcf1)); sheetk.addCell(new Label(5, t, member.getSpecial(), wcf1)); sheetk.addCell(new Label(6, t, member.getTitle(), wcf1)); sheetk.addCell(new Label(7, t, member.getDuty(), wcf1)); sheetk.addCell(new Label(8, t, member.getRole(), wcf1)); sheetk.addCell(new Label(9, t, member.getMemo(), font)); t++; } } /* * 执行导出操作 */ private void exportExcel(HttpServletResponse response, WritableWorkbook retValue, String filename) { response.setContentType("application/ms-excel"); /*response.addHeader("Content-Disposition", "attachment; filename=" + filename + ".xls");*/ try { retValue.write(); retValue.close(); } catch (IOException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } }} 2.4、在web.xml文件中添加servlet配置:
index.jsp ExportExlServlet servlet.ExportExlServlet ExportExlServlet /ExportExlServlet
2.5、添加index.jsp请求servlet
This is my JSP page. 导出数据
导出结果:
源码下载地址: