解析VCARD文件（vcf格式）导入QQ通讯录功能

参考了这篇文章：

http://www.blogjava.net/sundc/archive/2008/08/04/219877.html

http://www.blogjava.net/sundc/archive/2008/08/04/219863.html



页面上传一个从QQ邮箱导出的vcard文件，格式如下：

BEGIN:VCARD
VERSION:3.0
EMAIL;TYPE=HOME,INTERNET,pref:marketing@cache-cache.com.cn
FN:Cache Cache玩趣时尚
N:;Cache Cache玩趣时尚;;;
UID:7CBFDD99-8928-3646-86AE-1913A57F3B18
END:VCARD
BEGIN:VCARD
VERSION:3.0
EMAIL;TYPE=HOME,INTERNET,pref:hello@creativemarketmail.com
FN:Creative Market
N:;Creative Market;;;
UID:ACD17D48-3036-9C4F-8A51-039897733752
END:VCARD

在网上看了一些关于导出Android通讯录的例子，也是vcf格式的文件，但是格式不太一样，是类似这样的：

BEGIN:VCARD
VERSION:2.1
N;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:=E5=BC=A0=E4=B8=89;;
FN;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:=E5=BC=A0=E4=B8=89
TEL;VOICE;PREF:1-370-000-0000
PHOTO;ENCODING=BASE64;PNG:iVBORw0KGgoAAAANSUhEUgAAAGAAAABgCAIAAABt+uBvAAAA。。。。
END:VCARD

我在最上头放的那个链接就是解析这个格式vcf文件的。不过原理都是一样，使用正则表达式分组嘛~~感谢那位博主大大~~

我是需要这个文件里的email和name就可以了。就是FN和EMAIL这两个字段。

/**
* 把VCF文件解析成bean对象
* 导入联系人
* @param in
* @throws SystemException
*/
public List<Contact>  importVCFFileContact(InputStream in) throws SystemException{
List<Contact> list = new ArrayList<Contact>();

try {
BufferedReader reader = new BufferedReader(new InputStreamReader(in,"UTF-8"));
Document document = new DocumentImpl();
BufferedWriter writer = null;

String line;
StringBuffer bu=new StringBuffer();
while ((line = nextLine(reader)) != null) {
bu.append(line+"\r\n");
}
Pattern p=Pattern.compile("BEGIN:VCARD(\\r\\n)([\\s\\S\\r\\n\\.]*?)END:VCARD");//分组，
Matcher m=p.matcher(bu.toString());
while(m.find()){
Contact c = new Contact();
c.setUserId(FrameworkContextUtils.getCurrentUserId());
c.setStatus(Contact.STATUS_WAIT_INVITE);
String str=m.group(0);

//姓名
String name="";
Pattern p1=Pattern.compile("FN:.*");//分组，
Matcher m1=p1.matcher(str);
while(m1.find()){
name=m1.group(0).substring(m1.group(0).indexOf("FN:")+"FN:".length());
}
c.setName(name);

//email
String email="";

//                    //直接找与email格式匹配的内容。但是若email格式中有中横线-，找不到。大家可以改改正则表达式~
//                    Pattern p2=Pattern.compile("\\w+(\\.\\w+)*@\\w+(\\.\\w+)+");//分组，
//                    Matcher m2=p2.matcher(str);
//                    while(m2.find()){
//                        email=m2.group(0);
//                    }
if (StringUtils.isBlank(email)) {
Pattern p3=Pattern.compile("EMAIL:.*");//分组，
Matcher m3=p3.matcher(str);
while(m3.find()){
email=m3.group(0).substring(m3.group(0).indexOf("EMAIL:")+"EMAIL:".length());
}
}
if (StringUtils.isBlank(email)) {
Pattern p4=Pattern.compile("EMAIL;TYPE=HOME,INTERNET,pref:.*");//分组，
Matcher m4=p4.matcher(str);
while(m4.find()){
email=m4.group(0).substring(m4.group(0).indexOf("EMAIL;TYPE=HOME,INTERNET,pref:")+"EMAIL;TYPE=HOME,INTERNET,pref:".length());
}
}
c.setEmail(email);

list.add(c);
}
reader.close();
} catch (Exception e) {
LOGGER.debug(e.getMessage());
throw new SystemException("文件格式读取有错，请检查文件");
}
return list;

}

/**
* 获取文件的内容
* 以下是源码中自代的方法
* @param reader
* @return
* @throws IOException
*/
public static String nextLine(BufferedReader reader) throws IOException {

String line;
String nextLine;

do {
line = reader.readLine();
if (line == null) return null;
} while (line.length() == 0);

// Evolution style line folding
while (line.endsWith("=")) {
line = line.substring(0, line.length() - 1);
line += reader.readLine();
}
// RFC 2425 line folding
reader.mark(1000);
nextLine = reader.readLine();
if ((nextLine != null)
&& (nextLine.length() > 0)
&& ((nextLine.charAt(0) == 0x20) // white space
|| (nextLine.charAt(0) == 0x09))) { // tab
line += nextLine.substring(1);
} else {
reader.reset();
}

line = line.trim();
return line;
}

注意inputstream转为reader的时候的utf-8哦，不加可能会乱码。

@RequestMapping(value = "vcardUpload")
public String vcardUpload(HttpServletRequest request, HttpServletResponse response) throws Exception {
User user = (User)request.getSession().getAttribute(SecurityConstants.SESSION_USER);
request.setAttribute("user", user);

UploadFile uploadFile = FileUpDownUtils.getUploadFile(request, "uploadVCF");
String fileName = uploadFile.getFileName();
File fi = uploadFile.getFile();
InputStream inputStream = new FileInputStream(fi);
String message =  "";
if(inputStream.available()>2097152){
message =  "文件太大";
}
if(fileName==null){
message =  "文件错误";
}
int index1 = fileName.lastIndexOf(".");
int index2 = fileName.length();
String fileExt = fileName.substring(index1,index2);
if (fileExt.toLowerCase().equals(".vcf")){
try {
List<Contact> contacts = friendsManager.importVCFFileContact(inputStream);
if(contacts==null||contacts.size()==0){
message =  "导入记录0条,可能是导入文件内容格式不正确";
} else {
Contact temp = null;
for (Contact contact : contacts) {
temp = contactManager.getByUserIdAndEmail(FrameworkContextUtils.getCurrentUserId(), contact.getEmail());
if (temp == null) {
contactManager.save(contact);
} else {
message += "邮件地址为：  " + contact.getEmail() + "  的用户已存在。";
}

}
message = "导入成功." + message;
}
} catch (Exception e) {
message =  "文件格式发生错误";
}
} else{
message =  "不是vcf文件";
}
System.out.println(message);
return "redirect:/member/friends/contact/all";
}

导入成功：