Excel,Pdf,Xml 文件操作（二）

首先，还是列出接口IExport.java
public interface IExport {
/**
* 文件下载方法
* @param outfileName，输出显示文件名
* @param outfile，需要下载的文件名
* @param response
*/
public int download(String outfileName,String outfile,HttpServletResponse response);
/**
* 文件下载方法
* @param outfileName，输出显示文件名
* @param outfile，需要下载的文件名
* @param response
*/
public int download(String outfileName,String outfile,WebResponse response);
/**
* 数据导出方法，将数据导出到outFile中，但是不会下载 ，如需下载还需调用download方法
* @param headerMap，显示表头内容
* 构造表头内容：
* headerMap.put("name",rolename) ;
* name位list中的key,rolename位需要代替显示的内容
* @param outFile，导出到文件
* @param value，数据对象
*/
public int export(Map headerMap,String outFile,List value);
/**
* 数据导出方法，将数据导出到outFile中，但是不会下载 ，如需下载还需调用download方法
* @param outFile，导出到文件
* @param value，数据
*/
public int export(String outputFile,List value) ;
}

这个接口提供了四个方法，两个文件下载方法，在前面Download.java中已经实现。两个导出方法，其中参数在方法前面已经说明（注：List value中，value并不是数值列表，而是对象列表，例如有一个持久化对象User.java，那么这个value就可以是User,java的list）

二: 导出

导出具体实现原理：

首先循环对象，取出第一个对象，从这个对象中获取所有域名，然后比较这些域名和headMap中对应的字段，如相同就从headMap中取出对应地displayName（这样做是为了控制数据库中字段名对普通用户屏蔽）。当然，也可以通过在headMap中直设定需要导出的域名。没有写入headMap的域将不会被导出。

取出displayName以后，就写入excel文件中。然后，就依次循环对象value，通过反射技术从对象中取出值，写入到相应的displayName下。

1.这里用到的api时poi,可以到http://jakarta.apache.org/poi/上下载

2。poi的基本操作这里就不多说了，网上有很多关于这方面的资料

3。

ExcelExport.java

package org.xiaohongli.common.export;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
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.xiaohongli.common.IExport;

public class ExcelExport extends Download implements IExport{
private List<Map<String, Comparable>> list ;
private String fileName ;
private String sheetName ;

public ExcelExport(){
list = new ArrayList<Map<String, Comparable>>() ;
}

public int export(Map headerMap, String outFile, List value) {
if(null==outFile||outFile.equals(""))
outFile = Util.TEMP_EXCEL_FILE ;
try {
HSSFWorkbook workbook = new HSSFWorkbook() ;
HSSFSheet sheet = workbook.createSheet() ;

HSSFRow row = sheet.createRow(0) ;
List<String> displayFieldList = new ArrayList<String>() ;
for(int i=0 ;i<(value==null?0:value.size());i++){//循环对象value
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();//获取对象里所有方法
List<String> headerlist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String str = method[i1].getName() ;
if(str.indexOf("get")==0){
String fieldname = Util.getFieldName(str) ;//获取值字段名
headerlist.add(fieldname) ;//将字段名添加到list 中（判断有多少个field）
}else{
continue ;
}
}

int insertColumn = 0 ;
for(int i2 = 0 ;i2 <( headerlist==null?0:headerlist.size());i2++){
String headerValue = Util.convertNull((String)headerlist.get(i2)).toLowerCase() ;
String headerDisplay = (String)headerMap.get(headerValue) ;//从headMap中取出对应要显示的值
if(headerDisplay!=null&&!"".equals(headerDisplay)){
HSSFCell cell = row.createCell((short) insertColumn) ;
cell.setEncoding(HSSFCell.ENCODING_UTF_16);//设置编码，可以正确显示中文
cell.setCellValue(headerDisplay);
displayFieldList.add(headerValue);
insertColumn ++ ;
}

}

break ;
}

for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
HSSFRow row1 = sheet.createRow(i+2) ;
List<String[]> valuelist = new ArrayList<String[]>() ;
for(int i1=0; i1<method.length;i1++){
String name = method[i1].getName() ;
if(name.indexOf("set")==0) continue ;
if(name.indexOf("get")==0){
String fieldname = Util.getFieldName(name) ;
Object value1 = method[i1].invoke(obj,new Object[0]);
String value2 = value1==null?null:value1.toString() ;

String[] str = new String[]{fieldname.toLowerCase(),value2} ;
valuelist.add(str) ;
}
}
int insertColumn = 0 ;
for(int i2 = 0 ;i2 <( valuelist==null?0:valuelist.size());i2++){
String[] str = (String[])valuelist.get(i2) ;
String fn = str[0] ;
String fv = str[1] ;

if(displayFieldList.contains(fn)){
HSSFCell cell = row1.createCell((short) insertColumn) ;
cell.setEncoding(HSSFCell.ENCODING_UTF_16);
cell.setCellValue(fv);
insertColumn++ ;
}
}
}

FileOutputStream fOut = new FileOutputStream(outFile);
sheet.setAutobreaks(true) ;
workbook.write(fOut);
fOut.flush();
fOut.close();

} catch (SecurityException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalAccessException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (InvocationTargetException e){
e.printStackTrace();
return Util.ERROR ;
} catch (FileNotFoundException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IOException e) {
e.printStackTrace();
return Util.ERROR ;
}
return Util.SUCCESS ;
}

public int export(String outFile, List value) {
if(null==outFile||outFile.equals(""))
outFile = Util.TEMP_EXCEL_FILE ;
try {
HSSFWorkbook workbook = new HSSFWorkbook() ;
HSSFSheet sheet = workbook.createSheet() ;

HSSFRow row = sheet.createRow(0) ;
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
List<String> headerlist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String str = method[i1].getName() ;
if(str.indexOf("set")==0){
String fieldname = Util.getFieldName(str) ;
headerlist.add(fieldname) ;
}else{
continue ;
}
}
for(int i2 = 0 ;i2 <( headerlist==null?0:headerlist.size());i2++){
HSSFCell cell = row.createCell((short) i2) ;
cell.setCellValue(Util.convertNull((String)headerlist.get(i2)));
}

break ;
}
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
HSSFRow row1 = sheet.createRow(i+2) ;
List<String> valuelist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String name = method[i1].getName() ;
if(name.indexOf("set")==0) continue ;
if(name.indexOf("get")==0){
Object value1 = method[i1].invoke(obj,new Object[0]);
String value2 = value1==null?null:value1.toString() ;
valuelist.add(value2) ;
}
}
for(int i2 = 0 ;i2 <( valuelist==null?0:valuelist.size());i2++){
HSSFCell cell = row1.createCell((short) i2) ;
cell.setCellValue(Util.convertNull((String)valuelist.get(i2)));
}
}
FileOutputStream fOut = new FileOutputStream(outFile);
sheet.setAutobreaks(true) ;
workbook.write(fOut);
fOut.flush();
fOut.close();
} catch (SecurityException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalAccessException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (InvocationTargetException e){
e.printStackTrace();
return Util.ERROR ;
} catch (FileNotFoundException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IOException e) {
e.printStackTrace();
return Util.ERROR ;
}
return Util.SUCCESS ;
}

//这里还提供两个跟这个接口无关的两个方法，可以写值到指定的cell

/**
*
* @param 使用：
* @param 1。 获取文件路径和文件名，对应file
* @param 2。 获取sheet name,如只有一个sheet ,sheetName可为空null
* @param 3。 row 为指定的行号 ，从1开始
* @param 4。 cell 为制定的cell ,从1开始
* @param 5。 value 为要写入的数据（都要转化为字符型数据）
* @param 6。 调用方法 ExcelUtil.writeAppointPosition(file,sheetName,row,cell,value) ;
*/
public static void writeAppointPosition(String file ,String sheetName,int row,int cell,String value){
row = row -1 ;
cell = cell - 1 ;
try {
HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(file));
HSSFSheet sheet = null ;//workbook.getSheet(sheetName);
if(sheetName==null||sheetName.equals("")) sheet = workbook.getSheetAt(0);
else sheet = workbook.getSheet(sheetName);

HSSFRow row1 = null ;//sheet.getRow(row) ;
if( row1 == null ) row1 = sheet.createRow(row) ;
else row1 = sheet.getRow(row) ;

HSSFCell cell1 = null ;//row1.getCell((short)cell) ;
if(cell1==null)cell1 = row1.createCell((short)cell) ;
else cell1 = row1.getCell((short)cell) ;

cell1.setCellValue(value==null?"":value) ;

FileOutputStream fOut = new FileOutputStream(file);
workbook.write(fOut);
fOut.flush();
fOut.close();

} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}

public ExcelExport write(int row,int cell,String value){
Map<String, Comparable> map = new HashMap<String, Comparable>() ;
map.put("row",row) ;
map.put("cell",cell) ;
map.put("value",value) ;
list.add(map) ;
return this ;
}

/**
*
* @param file
* @param sheetName
* @param list
*/
public static void writeAppointPosition(String file ,String sheetName,List list){

try {
HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(file));
HSSFSheet sheet = null ;//workbook.getSheet(sheetName);
if(sheetName==null||sheetName.equals("")) sheet = workbook.getSheetAt(0);
else sheet = workbook.getSheet(sheetName);

for(int i=0 ;i<(list==null?0:list.size());i++){
Map map = (Map)list.get(i) ;
int row = (Integer)map.get("row") - 1;
int cell = (Integer)map.get("cell") -1;
String value = (String)map.get("value") ;

HSSFRow row1 = null ;//sheet.getRow(row) ;
if( row1 == null ) row1 = sheet.createRow(row) ;
else row1 = sheet.getRow(row) ;

HSSFCell cell1 = null ;//row1.getCell((short)cell) ;
if(cell1==null)cell1 = row1.createCell((short)cell) ;
else cell1 = row1.getCell((short)cell) ;

cell1.setCellValue(value==null?"":value) ;

}

FileOutputStream fOut = new FileOutputStream(file);
workbook.write(fOut);
fOut.flush();
fOut.close();

} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

//for(Iterator iter1=list.iterator();iter1.hasNext();){
// Map row1=(Map)iter1.next();
//}
}

public void execute(){
writeAppointPosition(fileName,sheetName,list) ;
}

}

XmlExport.java

package org.xiaohongli.common.export;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.jdom.Document;
import org.jdom.Element;
import org.xiaohongli.common.IExport;
import org.xiaohongli.common.JDOMXml;

public class XmlExport extends Download implements IExport{

public int export(Map headerMap, String outFile, List value) {
try {
Element element = null ;
Document document = null ;

for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
String nodeName = obj.getClass().getSimpleName().toLowerCase() ;
Method[] method = obj.getClass().getDeclaredMethods();
List<String> headerlist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String str = method[i1].getName() ;
if(str.indexOf("get")==0){
String fieldname = Util.getFieldName(str) ;
headerlist.add(fieldname) ;
}else{
continue ;
}
}

element = JDOMXml.createElement(nodeName, null, false);
document = JDOMXml.createDocument(element) ;

for(int i2 = 0 ;i2 <( headerlist==null?0:headerlist.size());i2++){
String headerValue = Util.convertNull((String)headerlist.get(i2)).toLowerCase() ;
String headerDisplay = (String)headerMap.get(headerValue) ;
if(headerDisplay!=null&&!"".equals(headerDisplay)){
Element element1 = JDOMXml.createElement(headerDisplay, null, false);
JDOMXml.addElement(element, element1) ;
}
}

break ;
}

List<String[]> valuelist = new ArrayList<String[]>() ;
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
for(int i1=0; i1<method.length;i1++){
String name = method[i1].getName() ;
if(name.indexOf("set")==0) continue ;
if(name.indexOf("get")==0){
String fieldname = Util.getFieldName(name) ;
Object value1 = method[i1].invoke(obj,new Object[0]);
String value2 = value1==null?null:value1.toString() ;
String[] str = new String[]{fieldname.toLowerCase(),value2} ;
valuelist.add(str) ;
}
}

}

for(int i=0 ;i<valuelist.size() ;i++){
String[] str = (String[])valuelist.get(i) ;
String key = str[0] ;
String keyValue = str[1] ;
if(Util.mapContainKey(headerMap, key)){
Element element1 = JDOMXml.getElement(element, (String)headerMap.get(key)) ;
Element element2 = JDOMXml.createElement("value", keyValue, false);
JDOMXml.addElement(element1, element2) ;
}
}
if(null==outFile||outFile.equals(""))
outFile = Util.TEMP_XML_FILE ;
JDOMXml.outputDocumentToFile(document,outFile) ;
} catch (SecurityException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalAccessException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (InvocationTargetException e) {
e.printStackTrace();
return Util.ERROR ;
}
return Util.SUCCESS ;
}

public int export(String outFile, List value) {
try {
Element element = null;
Document document = null;
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
String nodeName = obj.getClass().getSimpleName().toLowerCase() ;
Method[] method = obj.getClass().getDeclaredMethods();
List<String> headerlist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String str = method[i1].getName() ;
if(str.indexOf("get")==0){
String fieldname = Util.getFieldName(str) ;
headerlist.add(fieldname) ;
}else{
continue ;
}
}
element = JDOMXml.createElement(nodeName, null, false);
document = JDOMXml.createDocument(element) ;
for(int i2 = 0 ;i2 <( headerlist==null?0:headerlist.size());i2++){
Element element1 = JDOMXml.createElement(headerlist.get(i2), null, false);
JDOMXml.addElement(element, element1) ;
}
break ;
}

List<String[]> valuelist = new ArrayList<String[]>() ;
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
for(int i1=0; i1<method.length;i1++){
String name = method[i1].getName() ;
if(name.indexOf("set")==0) continue ;
if(name.indexOf("get")==0){
String fieldname = Util.getFieldName(name) ;
Object value1 = method[i1].invoke(obj,new Object[0]);
String value2 = value1==null?null:value1.toString() ;
String[] str = new String[]{fieldname.toLowerCase(),value2} ;
valuelist.add(str) ;
}
}

}

for(int i=0 ;i<valuelist.size() ;i++){
String[] str = (String[])valuelist.get(i) ;
String key = str[0] ;
String keyValue = str[1] ;
Element element1 = JDOMXml.getElement(element, key) ;
Element element2 = JDOMXml.createElement("value", keyValue, false);
JDOMXml.addElement(element1, element2) ;
}
if(null==outFile||outFile.equals(""))
outFile = Util.TEMP_XML_FILE ;
JDOMXml.outputDocumentToFile(document,outFile) ;
} catch (SecurityException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalAccessException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (InvocationTargetException e) {
e.printStackTrace();
return Util.ERROR ;
}
return Util.SUCCESS ;
}

}

PdfExport.java

package org.xiaohongli.common.export;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.xiaohongli.common.IExport;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Table;
import com.lowagie.text.pdf.PdfWriter;

public class PdfExport extends Download implements IExport {

public int export(Map headerMap, String outFile, List value) {
if(null==outFile||outFile.equals(""))
outFile = Util.TEMP_PDF_FILE ;
try {
/***************************************/
// 得到表头数据
List<Position> tableHeaderList = new ArrayList<Position>() ;
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
List<String> headerlist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String str = method[i1].getName() ;
if(str.indexOf("get")==0){
String fieldname = Util.getFieldName(str) ;
headerlist.add(fieldname) ;
}else{
continue ;
}
}
int insertColumn = 0 ;
for(int i2 = 0 ;i2 <( headerlist==null?0:headerlist.size());i2++){
String headerValue = Util.convertNull((String)headerlist.get(i2)).toLowerCase() ;
String headerDisplay = (String)headerMap.get(headerValue) ;
if(headerDisplay!=null&&!"".equals(headerDisplay)){
Position position = new Position(headerValue,headerDisplay,insertColumn);
tableHeaderList.add(position);
insertColumn ++ ;
}

}

break ;
}
//得到table数据
List<List<Position>> valueTableList = new ArrayList<List<Position>>();
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
List<Position> valuelist = new ArrayList<Position>() ;
//得到一行纪录
for(int i1=0; i1<method.length;i1++){
String name = method[i1].getName() ;
if(name.indexOf("set")==0) continue ;
if(name.indexOf("get")==0){
String fieldname = Util.getFieldName(name) ;
if(Util.mapContainKey(headerMap, fieldname)){
Object value1 = method[i1].invoke(obj,new Object[0]);
String value2 = value1==null?null:value1.toString() ;
Position position = new Position(fieldname,value2,-1);
valuelist.add(position) ;
}
}
}
valueTableList.add(valuelist);
}
/***************************************/

FileOutputStream fos;
try {
fos = new FileOutputStream(outFile);
} catch (FileNotFoundException e) {
try {
File file = new File(outFile) ;
file.createNewFile() ;
fos = new FileOutputStream(file);
} catch (FileNotFoundException e1) {
fos = null ;
e1.printStackTrace();
return Util.ERROR ;
} catch (IOException e1) {
fos = null ;
e1.printStackTrace();
return Util.ERROR ;
}
}

Document document = new Document();//创建pdf文档对象实例
PdfWriter.getInstance(document, fos);//建立书写器关联pdf文档对象实例
document.open();//打开文档
Table table = new Table(tableHeaderList.size());

for(int i=0 ;i<tableHeaderList.size() ;i++){
Position position = (Position)tableHeaderList.get(i) ;
table.addCell(position.getDisplayValue()) ;
}
for(int i=0 ;i<valueTableList.size() ;i++){
List valueList = valueTableList.get(i) ;
for(int i1=0 ;i1<valueList.size() ;i1++){
Position p = (Position)valueList.get(i1) ;
table.addCell(p.getDisplayValue()) ;
}
}
document.add(table);//添加内容
document.close();//关闭文档
} catch (DocumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalAccessException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (InvocationTargetException e) {
e.printStackTrace();
return Util.ERROR ;
}
return Util.SUCCESS ;
}

public int export(String outFile, List value) {
if(null==outFile||outFile.equals(""))
outFile = Util.TEMP_PDF_FILE ;
try {
/***************************************/
// 得到表头数据
List<String> tableHeaderList = new ArrayList<String>() ;
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
List<String> headerlist = new ArrayList<String>() ;
for(int i1=0; i1<method.length;i1++){
String str = method[i1].getName() ;
if(str.indexOf("get")==0){
String fieldname = Util.getFieldName(str) ;
headerlist.add(fieldname) ;
}else{
continue ;
}
}
for(int i2 = 0 ;i2 <( headerlist==null?0:headerlist.size());i2++){
String headerValue = Util.convertNull((String)headerlist.get(i2)).toLowerCase() ;
tableHeaderList.add(headerValue);

}

break ;
}
//得到table数据
List<List<Position>> valueTableList = new ArrayList<List<Position>>();
for(int i=0 ;i<(value==null?0:value.size());i++){
Object obj = value.get(i) ;
Method[] method = obj.getClass().getDeclaredMethods();
List<Position> valuelist = new ArrayList<Position>() ;
//得到一行纪录
for(int i1=0; i1<method.length;i1++){
String name = method[i1].getName() ;
if(name.indexOf("set")==0) continue ;
if(name.indexOf("get")==0){
String fieldname = Util.getFieldName(name) ;
Object value1 = method[i1].invoke(obj,new Object[0]);
String value2 = value1==null?null:value1.toString() ;
Position position = new Position(fieldname,value2,-1);
valuelist.add(position) ;
}
}
valueTableList.add(valuelist);
}
/***************************************/

FileOutputStream fos;
try {
fos = new FileOutputStream(outFile);
} catch (FileNotFoundException e) {
try {
File file = new File(outFile) ;
file.createNewFile() ;
fos = new FileOutputStream(file);
} catch (FileNotFoundException e1) {
fos = null ;
e1.printStackTrace();
return Util.ERROR ;
} catch (IOException e1) {
fos = null ;
e1.printStackTrace();
return Util.ERROR ;
}
}

Document document = new Document();//创建pdf文档对象实例
PdfWriter.getInstance(document, fos);//建立书写器关联pdf文档对象实例
document.open();//打开文档
Table table = new Table(tableHeaderList.size());
for(int i=0 ;i<tableHeaderList.size() ;i++){
String position = (String)tableHeaderList.get(i) ;
table.addCell(position) ;
}
for(int i=0 ;i<valueTableList.size() ;i++){
List valueList = valueTableList.get(i) ;
for(int i1=0 ;i1<valueList.size() ;i1++){
Position p = (Position)valueList.get(i1) ;
table.addCell(p.getDisplayValue()) ;
}
}
document.add(table);//添加内容
document.close();//关闭文档
} catch (DocumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (IllegalAccessException e) {
e.printStackTrace();
return Util.ERROR ;
} catch (InvocationTargetException e) {
e.printStackTrace();
return Util.ERROR ;
}
return Util.SUCCESS ;
}

static class Position{
public String columnValue ;
public String displayValue ;
public int position ;
public Position(String columnValue,String displayValue,int position){
this.columnValue = columnValue ;
this.displayValue = displayValue;
this.position = position ;
}
public int getPosition() {
return position;
}
public void setPosition(int position) {
this.position = position;
}
public String getColumnValue() {
return columnValue;
}
public void setColumnValue(String columnValue) {
this.columnValue = columnValue;
}
public String getDisplayValue() {
return displayValue;
}
public void setDisplayValue(String displayValue) {
this.displayValue = displayValue;
}

}

}

ExportFactory.java

package org.xiaohongli.common;

import org.xiaohongli.common.export.ExcelExport;
import org.xiaohongli.common.export.PdfExport;
import org.xiaohongli.common.export.XmlExport;

public class ExportFactory {

/**
* 得到xml导出对象的实例
* @return
*/
public IExport getXmlExportInstance(){
return new XmlExport() ;
}

/**
* 得到excel文件导出对像的实例
* @return
*/
public IExport getExcelExportInstance(){
return new ExcelExport() ;
}

/**
* 得到excel文件导出对像的实例
* @return
*/
public IExport getPdfExportInstance(){
return new PdfExport() ;
}

}

package org.xiaohongli.common.export;

import java.util.Map;

public class Util {
public static int ERROR = -1 ;
public static int SUCCESS = 1 ;
public static String TEMP_PDF_FILE = getRootPath()+"/temp_pdf.pdf" ;
public static String TEMP_EXCEL_FILE = getRootPath()+"/temp_excel.xls" ;
public static String TEMP_XML_FILE = getRootPath()+"/temp_pdf.xml" ;
public static String getFieldName(String fieldname){
if(fieldname==null||"".equals(fieldname)) return null ;
else{
return fieldname.substring(3).toLowerCase();
}
}

public static String convertNull(String str){
if(str==null)return "" ;
return str ;
}

public static boolean mapContainKey(Map map,String key){
return map.containsKey(key) ;
}
public static void log(String name,int i){
if(i==ERROR){
System.out.println(name+",fail!");
}else
if(i==SUCCESS){
System.out.println(name+",succeed!");
}else{
System.out.println("Unknown error!");
}
}

private static String getRootPath(){
return System.getProperty("user.dir");
}
}