Java导出Word文档案例

摘自：http://blog.sina.com.cn/s/blog_65f209a501015287.html

最近做的一个Flex项目中要把报表导出到Word文件中。网上查了好多资料后最终在网友的帮助和自己的奋斗下成功搞定。现把代码贴出来供大家批评指正并一起学习。

package org.replace;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.Map;

public class ReportWord {
public String replaceStr(String content, String oldcontent,
String newcontent) {
String rc = encodeToUnicode(newcontent);
String target = "";
oldcontent = "$" + oldcontent + "$";
target = content.replace(oldcontent, rc);
return target;
}

public String encodeToUnicode(String str) {
if (str == null)
return "";
StringBuilder sb = new StringBuilder(str.length() * 2);
for (int i = 0; i < str.length(); i++) {
sb.append(encodeToUnicode(str.charAt(i)));
}
return sb.toString();
}

public String encodeToUnicode(char character) {
if (character > 255) {
return "&#" + (character & 0xffff) + ";";
} else {
return String.valueOf(character);
}
}

public void exportWordFile(String inputPath, String outPath,
Map<String, String> data) {
String sourname = inputPath;
String sourcecontent = "";
InputStream ins = null;
try {
ins = new FileInputStream(sourname);
byte[] b = new byte[1638400];// 提高对文件的读取速度，特别是对于1M以上的文件
if (!new File(sourname).isFile()) {
System.out.println("源模板文件不存在");
return;
}
int bytesRead = 0;
while (true) {
bytesRead = ins.read(b, 0, 1638400);
if (bytesRead == -1) {
System.out.println("读取模板文件结束");
break;
}
sourcecontent += new String(b, 0, bytesRead);
}
} catch (Exception e) {
e.printStackTrace();
}

String targetcontent = "";
String oldText = "";
Object newValue;
try {
Iterator<String> keys = data.keySet().iterator();
int keysfirst = 0;
while (keys.hasNext()) {
oldText = (String) keys.next();
newValue = data.get(oldText);
String newText = (String) newValue;
if (keysfirst == 0) {
targetcontent = replaceStr(sourcecontent, oldText, newText);
keysfirst = 1;
} else {
targetcontent = replaceStr(targetcontent, oldText, newText);
keysfirst = 1;
}
}

FileWriter fw = new FileWriter(outPath, true);
PrintWriter out = new PrintWriter(fw);
if (targetcontent.equals("") || targetcontent == "") {
out.println(sourcecontent);
} else {
out.println(targetcontent);
}
out.close();
fw.close();
System.out.println(outPath + " 生成文件成功");
} catch (IOException e) {
e.printStackTrace();
}
}
}
测试代码为：

package org.replace;

import java.io.File;
import java.util.HashMap;

public class ExportFile {

public static void main(String[] args) {
ReportWord rw = new ReportWord();
HashMap<String, String> map = new HashMap<String, String>();
map.put("1", "张三");
map.put("2", "李四");
map.put("3", "王五");
map.put("4", "赵六");
map.put("5", "彩笔");
map.put("6", "张三");
map.put("7", "李四");
map.put("8", "王五");
map.put("9", "赵六");
map.put("10", "彩笔");
map.put("11", "张三");
map.put("12", "李四");
map.put("13", "王五");
map.put("14", "赵六");
map.put("15", "彩笔");
String inUrl = "D:" + File.separator + "itest.mht";
String outUrl = "C:" + File.separator + "Users"
+ File.separator + "Administrator" + File.separator + "Desktop"
+ File.separator + "itest.doc";
File fileOut = new File(outUrl);
File fileIn = new File(inUrl);
if(fileOut.exists()){
fileOut.delete();
System.out.println(inUrl + "文件已存在，已删除！");
}if(!fileIn.exists()){
return;
}
rw.exportWordFile(inUrl, outUrl, map);

}

}
使用的模板为.mht文件。