604 lines
17 KiB
Java
604 lines
17 KiB
Java
/**
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* Copyright © 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
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*/
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package com.nis.util.excel;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Properties;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.CellStyle;
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import org.apache.poi.ss.usermodel.Comment;
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import org.apache.poi.ss.usermodel.DataFormat;
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import org.apache.poi.ss.usermodel.Font;
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import org.apache.poi.ss.usermodel.IndexedColors;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.ss.util.CellRangeAddress;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
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import org.apache.poi.xssf.usermodel.XSSFRichTextString;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.google.common.collect.Lists;
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import com.nis.util.DictUtils;
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import com.nis.util.Encodes;
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import com.nis.util.Reflections;
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import com.nis.util.StringUtil;
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/**
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* 导出Excel文件（导出“XLSX”格式，支持大数据量导出 @see org.apache.poi.ss.SpreadsheetVersion）
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* @author ThinkGem
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* @version 2013-04-21
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*/
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public class ExportExcel {
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private static Logger log = LoggerFactory.getLogger(ExportExcel.class);
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/**
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* 工作薄对象
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*/
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private SXSSFWorkbook wb;
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/**
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* 工作表对象
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*/
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private Sheet sheet;
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/**
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* 样式列表
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*/
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private Map<String, CellStyle> styles;
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/**
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* 当前行号
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*/
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private int rownum;
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/**
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* 注解列表（Object[]{ ExcelField, Field/Method }）
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*/
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List<Object[]> annotationList = Lists.newArrayList();
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/**
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* //递归获取cls实体对象及父级对象的属性
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* @param list
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* @param cls
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*/
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public void getFields(List<Field> list,Class<?> cls) {
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Field[] fields=cls.getDeclaredFields();
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if(fields != null && fields.length > 0){
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for (Field field : fields) {
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list.add(field);
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}
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}
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if(cls.getSuperclass() != null){
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getFields(list,cls.getSuperclass());
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}
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}
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param cls 实体对象，通过annotation.ExportField获取标题
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*/
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public ExportExcel(String title, Class<?> cls){
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this(title, cls, 1);
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}
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param cls 实体对象，通过annotation.ExportField获取标题
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* @param type 导出类型（1:导出数据；2：导出模板）
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* @param groups 导入分组
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*/
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public ExportExcel(String title, Class<?> cls, int type, int... groups){
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List<Field> list=new ArrayList<Field>();
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// Get annotation field
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getFields(list, cls);
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if(!StringUtil.isEmpty(list)){
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for (Field f : list){
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ExcelField ef = f.getAnnotation(ExcelField.class);
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if (ef != null && (ef.type()==0 || ef.type()==type)){
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if (groups!=null && groups.length>0){
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boolean inGroup = false;
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for (int g : groups){
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if (inGroup){
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break;
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}
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for (int efg : ef.groups()){
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if (g == efg){
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inGroup = true;
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annotationList.add(new Object[]{ef, f});
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break;
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}
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}
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}
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}else{
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annotationList.add(new Object[]{ef, f});
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}
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}
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}
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}
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// Get annotation method
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Method[] ms = cls.getDeclaredMethods();
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for (Method m : ms){
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ExcelField ef = m.getAnnotation(ExcelField.class);
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if (ef != null && (ef.type()==0 || ef.type()==type)){
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if (groups!=null && groups.length>0){
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boolean inGroup = false;
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for (int g : groups){
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if (inGroup){
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break;
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}
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for (int efg : ef.groups()){
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if (g == efg){
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inGroup = true;
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annotationList.add(new Object[]{ef, m});
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break;
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}
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}
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}
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}else{
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annotationList.add(new Object[]{ef, m});
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}
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}
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}
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// Field sorting
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Collections.sort(annotationList, new Comparator<Object[]>() {
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public int compare(Object[] o1, Object[] o2) {
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return new Integer(((ExcelField)o1[0]).sort()).compareTo(
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new Integer(((ExcelField)o2[0]).sort()));
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};
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});
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// Initialize
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List<String> headerList = Lists.newArrayList();
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for (Object[] os : annotationList){
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String t = ((ExcelField)os[0]).title();
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// 如果是导出，则去掉注释
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if (type==1){
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String[] ss = StringUtils.split(t, "**", 2);
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if (ss.length==2){
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t = ss[0];
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}
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}
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headerList.add(t);
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}
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initialize(title, headerList);
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}
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param cls 实体对象，通过annotation.ExportField获取标题
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* @param type 导出类型（1:导出数据；2：导出模板）
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* @param groups 导入分组
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*/
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public ExportExcel(Properties msgProp,String title, Class<?> cls, int type, int... groups){
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List<Field> list=new ArrayList<Field>();
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// Get annotation field
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//递归获取cls实体对象及父级对象的属性
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getFields(list, cls);
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if(!StringUtil.isEmpty(list)){
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for (Field f : list){
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ExcelField ef = f.getAnnotation(ExcelField.class);
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if (ef != null && (ef.type()==0 || ef.type()==type)){
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if (groups!=null && groups.length>0){
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boolean inGroup = false;
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for (int g : groups){
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if (inGroup){
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break;
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}
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for (int efg : ef.groups()){
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if (g == efg){
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inGroup = true;
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annotationList.add(new Object[]{ef, f});
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break;
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}
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}
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}
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}else{
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annotationList.add(new Object[]{ef, f});
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}
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}
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}
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}
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// Get annotation method
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Method[] ms = cls.getDeclaredMethods();
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for (Method m : ms){
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ExcelField ef = m.getAnnotation(ExcelField.class);
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if (ef != null && (ef.type()==0 || ef.type()==type)){
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if (groups!=null && groups.length>0){
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boolean inGroup = false;
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for (int g : groups){
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if (inGroup){
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break;
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}
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for (int efg : ef.groups()){
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if (g == efg){
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inGroup = true;
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annotationList.add(new Object[]{ef, m});
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break;
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}
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}
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}
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}else{
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annotationList.add(new Object[]{ef, m});
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}
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}
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}
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// Field sorting
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Collections.sort(annotationList, new Comparator<Object[]>() {
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public int compare(Object[] o1, Object[] o2) {
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return new Integer(((ExcelField)o1[0]).sort()).compareTo(
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new Integer(((ExcelField)o2[0]).sort()));
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};
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});
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// Initialize
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List<String> headerList = Lists.newArrayList();
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for (Object[] os : annotationList){
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String t = ((ExcelField)os[0]).title();
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// 如果是导出，则去掉注释
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if (type==1){
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String[] ss = StringUtils.split(t, "**", 2);
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if (ss.length==2){
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t = ss[0];
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}
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}
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headerList.add(msgProp.getProperty(t)==null?t:msgProp.getProperty(t));
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}
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initialize(title, headerList);
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}
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param headers 表头数组
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*/
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public ExportExcel(String title, String[] headers) {
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initialize(title, Lists.newArrayList(headers));
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}
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/**
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* 构造函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param headerList 表头列表
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*/
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public ExportExcel(String title, List<String> headerList) {
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initialize(title, headerList);
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}
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/**
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* 初始化函数
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* @param title 表格标题，传“空值”，表示无标题
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* @param headerList 表头列表
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*/
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private void initialize(String title, List<String> headerList) {
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this.wb = new SXSSFWorkbook(500);
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this.sheet = wb.createSheet("Export");
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this.styles = createStyles(wb);
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// Create title
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if (StringUtils.isNotBlank(title)){
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Row titleRow = sheet.createRow(rownum++);
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titleRow.setHeightInPoints(30);
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Cell titleCell = titleRow.createCell(0);
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titleCell.setCellStyle(styles.get("title"));
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titleCell.setCellValue(title);
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sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(),
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titleRow.getRowNum(), titleRow.getRowNum(), headerList.size()-1));
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}
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// Create header
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if (headerList == null){
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throw new RuntimeException("headerList not null!");
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}
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Row headerRow = sheet.createRow(rownum++);
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headerRow.setHeightInPoints(16);
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for (int i = 0; i < headerList.size(); i++) {
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Cell cell = headerRow.createCell(i);
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cell.setCellStyle(styles.get("header"));
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String[] ss = StringUtils.split(headerList.get(i), "**", 2);
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if (ss.length==2){
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cell.setCellValue(ss[0]);
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Comment comment = this.sheet.createDrawingPatriarch().createCellComment(
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new XSSFClientAnchor(0, 0, 0, 0, (short) 3, 3, (short) 5, 6));
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comment.setString(new XSSFRichTextString(ss[1]));
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cell.setCellComment(comment);
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}else{
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cell.setCellValue(headerList.get(i));
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}
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sheet.autoSizeColumn(i);
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}
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for (int i = 0; i < headerList.size(); i++) {
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int colWidth = sheet.getColumnWidth(i)*2;
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sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth);
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}
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log.debug("Initialize success.");
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}
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/**
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* 创建表格样式
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* @param wb 工作薄对象
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* @return 样式列表
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*/
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private Map<String, CellStyle> createStyles(Workbook wb) {
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Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
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CellStyle style = wb.createCellStyle();
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style.setAlignment(CellStyle.ALIGN_CENTER);
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style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
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Font titleFont = wb.createFont();
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titleFont.setFontName("Arial");
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titleFont.setFontHeightInPoints((short) 16);
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titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
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style.setFont(titleFont);
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styles.put("title", style);
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style = wb.createCellStyle();
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style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
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style.setBorderRight(CellStyle.BORDER_THIN);
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style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderLeft(CellStyle.BORDER_THIN);
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style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderTop(CellStyle.BORDER_THIN);
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style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderBottom(CellStyle.BORDER_THIN);
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style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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Font dataFont = wb.createFont();
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dataFont.setFontName("Arial");
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dataFont.setFontHeightInPoints((short) 10);
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style.setFont(dataFont);
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styles.put("data", style);
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style = wb.createCellStyle();
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style.cloneStyleFrom(styles.get("data"));
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style.setAlignment(CellStyle.ALIGN_LEFT);
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styles.put("data1", style);
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style = wb.createCellStyle();
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style.cloneStyleFrom(styles.get("data"));
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style.setAlignment(CellStyle.ALIGN_CENTER);
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styles.put("data2", style);
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style = wb.createCellStyle();
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style.cloneStyleFrom(styles.get("data"));
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style.setAlignment(CellStyle.ALIGN_RIGHT);
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styles.put("data3", style);
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style = wb.createCellStyle();
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style.cloneStyleFrom(styles.get("data"));
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// style.setWrapText(true);
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style.setAlignment(CellStyle.ALIGN_CENTER);
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style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setFillPattern(CellStyle.SOLID_FOREGROUND);
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Font headerFont = wb.createFont();
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headerFont.setFontName("Arial");
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headerFont.setFontHeightInPoints((short) 10);
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headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
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headerFont.setColor(IndexedColors.WHITE.getIndex());
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style.setFont(headerFont);
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styles.put("header", style);
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return styles;
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}
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/**
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* 添加一行
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* @return 行对象
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*/
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public Row addRow(){
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return sheet.createRow(rownum++);
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}
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/**
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* 添加一个单元格
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* @param row 添加的行
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* @param column 添加列号
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* @param val 添加值
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* @return 单元格对象
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*/
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public Cell addCell(Row row, int column, Object val){
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return this.addCell(row, column, val, 0, Class.class);
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}
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/**
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* 添加一个单元格
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* @param row 添加的行
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* @param column 添加列号
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* @param val 添加值
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* @param align 对齐方式（1：靠左；2：居中；3：靠右）
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* @return 单元格对象
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*/
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public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType){
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Cell cell = row.createCell(column);
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CellStyle style = styles.get("data"+(align>=1&&align<=3?align:""));
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try {
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if (val == null){
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cell.setCellValue("");
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} else if (val instanceof String) {
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cell.setCellValue((String) val);
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} else if (val instanceof Integer) {
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cell.setCellValue((Integer) val);
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} else if (val instanceof Long) {
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cell.setCellValue((Long) val);
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} else if (val instanceof Double) {
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cell.setCellValue((Double) val);
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} else if (val instanceof Float) {
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cell.setCellValue((Float) val);
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} else if (val instanceof Date) {
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DataFormat format = wb.createDataFormat();
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style.setDataFormat(format.getFormat("yyyy-MM-dd"));
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cell.setCellValue((Date) val);
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} else {
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if (fieldType != Class.class){
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cell.setCellValue((String)fieldType.getMethod("setValue", Object.class).invoke(null, val));
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}else{
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cell.setCellValue((String)Class.forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(),
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"fieldtype."+val.getClass().getSimpleName()+"Type")).getMethod("setValue", Object.class).invoke(null, val));
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}
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}
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} catch (Exception ex) {
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log.info("Set cell value ["+row.getRowNum()+","+column+"] error: " + ex.toString());
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cell.setCellValue(val.toString());
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}
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cell.setCellStyle(style);
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return cell;
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}
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/**
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* 添加数据（通过annotation.ExportField添加数据）
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* @return list 数据列表
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*/
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public <E> ExportExcel setDataList(List<E> list){
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for (E e : list){
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int colunm = 0;
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Row row = this.addRow();
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StringBuilder sb = new StringBuilder();
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for (Object[] os : annotationList){
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ExcelField ef = (ExcelField)os[0];
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Object val = null;
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// Get entity value
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try{
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if (StringUtils.isNotBlank(ef.value())){
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val = Reflections.invokeGetter(e, ef.value());
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}else{
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if (os[1] instanceof Field){
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val = Reflections.invokeGetter(e, ((Field)os[1]).getName());
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}else if (os[1] instanceof Method){
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val = Reflections.invokeMethod(e, ((Method)os[1]).getName(), new Class[] {}, new Object[] {});
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}
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}
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// If is dict, get dict label
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if (StringUtils.isNotBlank(ef.dictType())){
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val = DictUtils.getDictLabel(val==null?"":val.toString(), ef.dictType(), "");
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}
|
||
}catch(Exception ex) {
|
||
// Failure to ignore
|
||
log.info(ex.toString());
|
||
val = "";
|
||
}
|
||
this.addCell(row, colunm++, val, ef.align(), ef.fieldType());
|
||
sb.append(val + ", ");
|
||
}
|
||
log.debug("Write success: ["+row.getRowNum()+"] "+sb.toString());
|
||
}
|
||
return this;
|
||
}
|
||
|
||
/**
|
||
* 输出数据流
|
||
* @param os 输出数据流
|
||
*/
|
||
public ExportExcel write(OutputStream os) throws IOException{
|
||
wb.write(os);
|
||
return this;
|
||
}
|
||
|
||
/**
|
||
* 输出到客户端
|
||
* @param fileName 输出文件名
|
||
*/
|
||
public ExportExcel write(HttpServletResponse response, String fileName) throws IOException{
|
||
response.reset();
|
||
response.setContentType("application/octet-stream; charset=utf-8");
|
||
response.setHeader("Content-Disposition", "attachment; filename="+Encodes.urlEncode(fileName));
|
||
write(response.getOutputStream());
|
||
return this;
|
||
}
|
||
|
||
/**
|
||
* 输出到文件
|
||
* @param fileName 输出文件名
|
||
*/
|
||
public ExportExcel writeFile(String name) throws FileNotFoundException, IOException{
|
||
FileOutputStream os = new FileOutputStream(name);
|
||
this.write(os);
|
||
return this;
|
||
}
|
||
/**
|
||
* 输出到客户端
|
||
* @param fileName 输出文件名
|
||
*/
|
||
public ExportExcel write(HttpServletRequest request,HttpServletResponse response, String fileName) throws IOException{
|
||
|
||
final String userAgent = request.getHeader("USER-AGENT");
|
||
String finalFileName = null;
|
||
if(StringUtils.contains(userAgent, "MSIE")){//IE浏览器
|
||
finalFileName = Encodes.urlEncode(fileName);
|
||
}else if(StringUtils.contains(userAgent, "Mozilla")){//google,火狐浏览器
|
||
finalFileName = new String(fileName.getBytes(), "ISO8859-1");
|
||
}else{
|
||
finalFileName = Encodes.urlEncode(fileName);//其他浏览器
|
||
}
|
||
|
||
response.reset();
|
||
response.setContentType("application/octet-stream; charset=utf-8");
|
||
response.setHeader("Content-Disposition", "attachment; filename="+finalFileName);
|
||
write(response.getOutputStream());
|
||
return this;
|
||
}
|
||
/**
|
||
* 清理临时文件
|
||
*/
|
||
public ExportExcel dispose(){
|
||
wb.dispose();
|
||
return this;
|
||
}
|
||
|
||
// /**
|
||
// * 导出测试
|
||
// */
|
||
// public static void main(String[] args) throws Throwable {
|
||
//
|
||
// List<String> headerList = Lists.newArrayList();
|
||
// for (int i = 1; i <= 10; i++) {
|
||
// headerList.add("表头"+i);
|
||
// }
|
||
//
|
||
// List<String> dataRowList = Lists.newArrayList();
|
||
// for (int i = 1; i <= headerList.size(); i++) {
|
||
// dataRowList.add("数据"+i);
|
||
// }
|
||
//
|
||
// List<List<String>> dataList = Lists.newArrayList();
|
||
// for (int i = 1; i <=1000000; i++) {
|
||
// dataList.add(dataRowList);
|
||
// }
|
||
//
|
||
// ExportExcel ee = new ExportExcel("表格标题", headerList);
|
||
//
|
||
// for (int i = 0; i < dataList.size(); i++) {
|
||
// Row row = ee.addRow();
|
||
// for (int j = 0; j < dataList.get(i).size(); j++) {
|
||
// ee.addCell(row, j, dataList.get(i).get(j));
|
||
// }
|
||
// }
|
||
//
|
||
// ee.writeFile("target/export.xlsx");
|
||
//
|
||
// ee.dispose();
|
||
//
|
||
// log.debug("Export success.");
|
||
//
|
||
// }
|
||
|
||
}
|