使用阿里的Oss服务器，做图片服务器。 项目功能为，前端，调用后端的接口，上传用户的图片！
1、controller类
@RestController
@RequestMapping("/oss/file")
public class FileController {
private static final Logger logger = LoggerFactory.getLogger(FileController.class);
@Autowired
private IFileService service;
/**
* 上传文件到临时库，并使用 上传文件的原文件名
* @param file
* @return
*/
@PostMapping(value = "/uploadFileUsingOriginalFilename")
public ResultRsp uploadFileUsingOriginalFilename(MultipartFile file){
return ResultRsp.success(service.uploadFileUsingOriginalFilename(file),"文件上传成功");
}
/**
* 上传文件到临时库，使用随机生成的文件名
* @param file
* @return
*/
@PostMapping(value = "/uploadFile")
public Object uploadFile(MultipartFile file){
return ResultRsp.success(service.uploadFile(file),"文件上传成功");
}
}2、service类
@Service
public class IFileServiceImpl implements IFileService {
private final static Logger LOGGER = LoggerFactory.getLogger(IFileServiceImpl.class);
private final static String FILE_URL = "fileUrl";
/**
* 上传文件到临时库，并使用 上传文件的原文件名
* @param file
* @return
* @throws IOException
*/
@Override
public Map uploadFileUsingOriginalFilename(MultipartFile file) throws IOException {
this.checkFile(file);
String name = OssClientUtil.uploadFileTemp(file, file.getOriginalFilename());
String fileUrl = OssClientUtil.getFileUrlFromTemp(name,false);
return MapUtils.toMap(FILE_URL,fileUrl);
}
/**
* 上传文件到临时库，并使用随机名
* @param file
* @return
* @throws IOException
*/
@Override
public Map uploadFile(MultipartFile file) throws IOException {
this.checkFile(file);
String name = OssClientUtil.uploadFileTemp(file);
String fileUrl = OssClientUtil.getFileUrlFromTemp(name,false);
return MapUtils.toMap(FILE_URL,fileUrl);
}
/**
* 检查 文件是否为null
* @param file
*/
private void checkFile(MultipartFile file){
if (Objects.isNull(file) || Objects.isNull(file.getOriginalFilename())){
throw new SecurityException(ErrorCode.Null.OBJECT_NULL,"文件对象为null");
}
LOGGER.debug("上传文件：filename=" + file.getOriginalFilename());
}
public class MapUtils {
public static Map toMap(String key, Object value){
HashMap map = new HashMap(1);
map.put(key,value);
return map;
}
}
}3、OssClientUtil类
@Component
public class OssClientUtil {
private static final Logger LOGGER = LoggerFactory.getLogger(OssClientUtil.class);
@Autowired
private OssConfig ossConfig;
private static OSSClient ossClient;
private static OSSClient ossClientInternal;
private static UidGenerator uidGenerator;
private static OssClientUtil ossClientUtil;
private static String baseDir = "data/";
/**
* 文件正式存储目录
*/
private static String fileDir = baseDir + "file/";
/**
* 文件临时存储目录
*/
private static String tempDir = baseDir + "temp/";
private static boolean intranet;
/**
* 初始化
*/
@PostConstruct
public void init() {
ossClientUtil = this;
LOGGER.debug("OSS Util 加载的配置数据为{}", ossClientUtil.ossConfig.toString());
ossClient = new OSSClient(ossClientUtil.ossConfig.getEndpoint()
, ossClientUtil.ossConfig.getAccessKeyId()
, ossClientUtil.ossConfig.getAccessKeySecret());
ossClientInternal = new OSSClient(ossClientUtil.ossConfig.getEndpointInternal()
, ossClientUtil.ossConfig.getAccessKeyId()
, ossClientUtil.ossConfig.getAccessKeySecret());
if (ossClientUtil.ossConfig.getIntranet()) {
intranet = true;
} else {
intranet = false;
}
uidGenerator = new SnowflakeUidGenerator();
}
/**
* 销毁
*/
public static void destory() {
ossClient.shutdown();
ossClientInternal.shutdown();
}
/**
* 上传文件到临时库，并使用指定文件名，限定大小10M
*
* @param file 文件流
* @param fileName 自定义文件名，包含后缀名
* @return 返回时间码拼接的文件名，目的是为了避免重复。格式为 "时间串_随机码_fileName"
*/
public static String uploadFileTemp(MultipartFile file, String fileName) throws MyFileException, IOException {
OssUtil.checkFileSizeGt(file, OssUtil.M_10);
String name = System.currentTimeMillis() + "_" + uidGenerator.nextId() + "_" + fileName;
InputStream inputStream;
try {
inputStream = file.getInputStream();
} catch (Exception e) {
throw new MyFileException(ErrorCode.File.FILE_NOT_FOUND, "文件上传失败");
}
uploadFileTemp(inputStream, name);
return name;
}
/**
* 上传文件到OSS服务器 的临时目录下， 如果同名文件会覆盖服务器上的文件
*
* @param inputStream 文件流
* @param fileName 文件名称 包括后缀名
* @return 出错返回"" ,唯一MD5数字签名
* @throws MyFileException
* @throws IOException
*/
public static String uploadFileTemp(InputStream inputStream, String fileName) throws MyFileException, IOException {
return uploadFileOSSData(inputStream, ossClientUtil.ossConfig.getTempData(), fileName, tempDir);
}
/**
* 上传到OSS服务器 指定目录下
*
* @param inputStream 文件流
* @param bucketName bucket名
* @param fileName 新的文件名称
* @param dir 上传至目标目录下
* @return 文件上传成功后的，MD5码
* @throws MyFileException
* @throws IOException
*/
public static String uploadFileOSSData(InputStream inputStream, String bucketName, String fileName, String dir) throws MyFileException, IOException {
//压缩图片
inputStream = changeSize(inputStream,ossClientUtil.ossConfig.getSize());
OSSClient ossClient;
if (OssClientUtil.intranet) {
ossClient = OssClientUtil.ossClientInternal;
} else {
ossClient = OssClientUtil.ossClient;
}
String ret = "";
try {
//创建上传Object的Metadata
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setContentLength(inputStream.available());
objectMetadata.setCacheControl("no-cache");
objectMetadata.setHeader("Pragma", "no-cache");
objectMetadata.setContentType(OssUtil.getContentType(fileName.substring(fileName.lastIndexOf("."))));
objectMetadata.setContentDisposition("inline;filename=" + fileName);
//设置 公共读
objectMetadata.setObjectAcl(CannedAccessControlList.PublicRead);
//上传文件
PutObjectResult putResult = ossClient.putObject(bucketName, dir + fileName, inputStream, objectMetadata);
ret = putResult.getETag();
} catch (RuntimeException e) {
LOGGER.error("上传文件到OSS服务器 发生错误：{}", e.getMessage());
throw new MyFileException(ErrorCode.File.FILE_OSS_ERROR, e.getMessage(), e.getLocalizedMessage());
} finally {
if (inputStream != null) {
inputStream.close();
}
}
return ret;
}
/**
* 递归 压缩文件流，到指定大小范围内
* @param inputStream
* @param limitSize
* @return
* @throws IOException
*/
public static InputStream changeSize(InputStream inputStream,int limitSize) throws IOException {
//先判断 文件大小是否超过 规定大小。
if (! (inputStream.available()>limitSize)){
return inputStream;
}
// 压缩比率为 0.8
float ratio = 0.8f;
BufferedImage bufImage = ImageIO.read(inputStream);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
//写入 临时文件
File file = new File(OssClientUtil.uidGenerator.nextId()+".png");
Thumbnails.of(bufImage).scale(ratio).toFile(file);
//获取输出流
inputStream = new FileInputStream(file);
//删除临时文件
file.delete();
LOGGER.info("转换后的文件大小为{}",inputStream.available());
//递归调用
return changeSize(inputStream,limitSize);
}
}4、OssUtil类
/**
* @Author: seowen
* @Date: 2019/10/25 14:52
* @Version 1.0
*/
public class OssUtil {
public static final long KB_512 = 512*1024;
public static final long M_5 = 5*1024*1024;
public static final long M_10 = 10*1024*1024;
public static final long G_1 = 1*1024*1024*1024;
public static final long Year = 1*365*24*3600L*1000;
/**
* 验证 文件大小，不能大于 限定大小
* @param file
* @param limitSize 字节
*/
public static void checkFileSizeGt(MultipartFile file,long limitSize){
if (file.getSize() > limitSize) {
throw new MyFileException(ErrorCode.File.FILE_SIZE_BIG,"上传文件大小不能大于:"+limitSize);
}
}
/**
* 验证 文件大小，不能小于 限定大小
* @param file
* @param limitSize 字节
*/
public static void checkFileSizeLt(MultipartFile file,long limitSize){
if (file.getSize() < limitSize) {
throw new MyFileException(ErrorCode.File.FILE_SIZE_SMALL,"上传文件大小不能小于:"+limitSize);
}
}
/**
* 验证 文件大小，只能在 限定大小之间
* @param file
* @param ltLimitSize
* @param gtLimitSize
*/
public static void checkFileSizeBetween(MultipartFile file,long ltLimitSize,long gtLimitSize){
if (file.getSize() < ltLimitSize || file.getSize() > gtLimitSize) {
throw new MyFileException(ErrorCode.File.FILE_SIZE_ERROR,"上传文件大小超出限定范围,范围为："+ltLimitSize+" 和 "+gtLimitSize);
}
}
/**
* Description: 判断OSS服务文件上传时文件的contentType
*
* @param fileNameExtension 文件后缀
* @return String
*/
public static String getContentType(String fileNameExtension) {
switch(fileNameExtension) {
case ".": return "application/x-" ;
case ".*": return "application/octet-stream" ;
case ".pdf": return "application/pdf" ;
case ".ai": return "application/postscript" ;
case ".edi": return "application/EDIFACT" ;
case ".json": return "application/json" ;
case ".js": return "application/javascript" ;
case ".ogg": return "application/ogg" ;
case ".rdf": return "application/rdf+xml" ;
case ".woff": return "application/font-woff" ;
case ".xhtml": return "application/xhtml+xml" ;
case ".xml": return "application/xml" ;
case ".dtd": return "application/xml-dtd" ;
case ".zip": return "application/zip" ;
case ".gzip": return "application/gzip" ;
case "0.001": return "application/x-001" ;
case "0.301": return "application/x-301" ;
case "0.906": return "application/x-906" ;
case ".a11": return "application/x-a11" ;
case ".awf": return "application/vnd.adobe.workflow" ;
case ".bmp": return "application/x-bmp" ;
case ".c4t": return "application/x-c4t" ;
case ".cal": return "application/x-cals" ;
case ".cdf": return "application/x-netcdf" ;
case ".cel": return "application/x-cel" ;
case ".cg4": return "application/x-g4" ;
case ".cit": return "application/x-cit" ;
case ".bot": return "application/x-bot" ;
case ".c90": return "application/x-c90" ;
case ".cat": return "application/vnd.ms-pki.seccat" ;
case ".cdr": return "application/x-cdr" ;
case ".cer": return "application/x-x509-ca-cert" ;
case ".cgm": return "application/x-cgm" ;
case ".cmx": return "application/x-cmx" ;
case ".crl": return "application/pkix-crl" ;
case ".csi": return "application/x-csi" ;
case ".cut": return "application/x-cut" ;
case ".dbm": return "application/x-dbm" ;
case ".cmp": return "application/x-cmp" ;
case ".cot": return "application/x-cot" ;
case ".crt": return "application/x-x509-ca-cert" ;
case ".dbf": return "application/x-dbf" ;
case ".dbx": return "application/x-dbx" ;
case ".dcx": return "application/x-dcx" ;
case ".dgn": return "application/x-dgn" ;
case ".dll": return "application/x-msdownload" ;
case ".dot": return "application/msword" ;
case ".der": return "application/x-x509-ca-cert" ;
case ".dib": return "application/x-dib" ;
case ".doc": return "application/msword" ;
case ".drw": return "application/x-drw" ;
case ".dwf": return "application/x-dwf" ;
case ".dxb": return "application/x-dxb" ;
case ".edn": return "application/vnd.adobe.edn" ;
case ".dwg": return "application/x-dwg" ;
case ".dxf": return "application/x-dxf" ;
case ".emf": return "application/x-emf" ;
case ".epi": return "application/x-epi" ;
case ".eps": return "application/postscript" ;
case ".exe": return "application/x-msdownload" ;
case ".fdf": return "application/vnd.fdf" ;
case ".etd": return "application/x-ebx" ;
case ".fif": return "application/fractals" ;
case ".frm": return "application/x-frm" ;
case ".gbr": return "application/x-gbr" ;
case ".g4": return "application/x-g4" ;
case ".gl2": return "application/x-gl2" ;
case ".hgl": return "application/x-hgl" ;
case ".hpg": return "application/x-hpgl" ;
case ".hqx": return "application/mac-binhex40" ;
case ".hta": return "application/hta" ;
case ".gp4": return "application/x-gp4" ;
case ".hmr": return "application/x-hmr" ;
case ".hpl": return "application/x-hpl" ;
case ".hrf": return "application/x-hrf" ;
case ".icb": return "application/x-icb" ;
case ".ico": return "application/x-ico" ;
case ".ig4": return "application/x-g4" ;
case ".iii": return "application/x-iphone" ;
case ".ins": return "application/x-internet-signup" ;
case ".iff": return "application/x-iff" ;
case ".igs": return "application/x-igs" ;
case ".img": return "application/x-img" ;
case ".isp": return "application/x-internet-signup" ;
case ".jpe": return "application/x-jpe" ;
case ".jpg": return "application/x-jpg" ;
case ".lar": return "application/x-laplayer-reg" ;
case ".latex": return "application/x-latex" ;
case ".lbm": return "application/x-lbm" ;
case ".ls": return "application/x-javascript" ;
case ".ltr": return "application/x-ltr" ;
case ".man": return "application/x-troff-man" ;
case ".mdb": return "application/msaccess" ;
case ".mac": return "application/x-mac" ;
case ".mp3": return "audio/mp3";
case ".mp4": return "video/mpeg4";
case ".mfp": return "application/x-shockwave-flash" ;
case ".mi": return "application/x-mi" ;
case ".mil": return "application/x-mil" ;
case ".mocha": return "application/x-javascript" ;
case ".mpd": return "application/vnd.ms-project" ;
case ".mpp": return "application/vnd.ms-project" ;
case ".mpt": return "application/vnd.ms-project" ;
case ".mpw": return "application/vnd.ms-project" ;
case ".mpx": return "application/vnd.ms-project" ;
case ".mxp": return "application/x-mmxp" ;
case ".nrf": return "application/x-nrf" ;
case ".out": return "application/x-out" ;
case ".p12": return "application/x-pkcs12" ;
case ".p7c": return "application/pkcs7-mime" ;
case ".p7r": return "application/x-pkcs7-certreqresp" ;
case ".pc5": return "application/x-pc5" ;
case ".pcl": return "application/x-pcl" ;
case ".pdx": return "application/vnd.adobe.pdx" ;
case ".pgl": return "application/x-pgl" ;
case ".pko": return "application/vnd.ms-pki.pko" ;
case ".p10": return "application/pkcs10" ;
case ".p7b": return "application/x-pkcs7-certificates" ;
case ".p7m": return "application/pkcs7-mime" ;
case ".p7s": return "application/pkcs7-signature" ;
case ".pci": return "application/x-pci" ;
case ".pcx": return "application/x-pcx" ;
case ".pfx": return "application/x-pkcs12" ;
case ".pic": return "application/x-pic" ;
case ".pl": return "application/x-perl" ;
case ".plt": return "application/x-plt" ;
case ".png": return "application/x-png" ;
case ".ppa": return "application/vnd.ms-powerpoint" ;
case ".pps": return "application/vnd.ms-powerpoint" ;
case ".ppt": return "application/x-ppt" ;
case ".prf": return "application/pics-rules" ;
case ".prt": return "application/x-prt" ;
case ".ps": return "application/postscript" ;
case ".pwz": return "application/vnd.ms-powerpoint" ;
case ".ra": return "audio/vnd.rn-realaudio" ;
case ".ras": return "application/x-ras" ;
case ".pot": return "application/vnd.ms-powerpoint" ;
case ".ppm": return "application/x-ppm" ;
case ".pr": return "application/x-pr" ;
case ".prn": return "application/x-prn" ;
case ".ptn": return "application/x-ptn" ;
case ".red": return "application/x-red" ;
case ".rjs": return "application/vnd.rn-realsystem-rjs" ;
case ".rlc": return "application/x-rlc" ;
case ".rm": return "application/vnd.rn-realmedia" ;
case ".rat": return "application/rat-file" ;
case ".rec": return "application/vnd.rn-recording" ;
case ".rgb": return "application/x-rgb" ;
case ".rjt": return "application/vnd.rn-realsystem-rjt" ;
case ".rle": return "application/x-rle" ;
case ".rmf": return "application/vnd.adobe.rmf" ;
case ".rmj": return "application/vnd.rn-realsystem-rmj" ;
case ".rmp": return "application/vnd.rn-rn_music_package" ;
case ".rmvb": return "application/vnd.rn-realmedia-vbr" ;
case ".rnx": return "application/vnd.rn-realplayer" ;
case ".rpm": return "audio/x-pn-realaudio-plugin" ;
case ".rms": return "application/vnd.rn-realmedia-secure" ;
case ".rmx": return "application/vnd.rn-realsystem-rmx" ;
case ".rsml": return "application/vnd.rn-rsml" ;
case ".rtf": return "application/msword" ;
case ".rv": return "video/vnd.rn-realvideo" ;
case ".sat": return "application/x-sat" ;
case ".sdw": return "application/x-sdw" ;
case ".slb": return "application/x-slb" ;
case ".sam": return "application/x-sam" ;
case ".sdp": return "application/sdp" ;
case ".sit": return "application/x-stuffit" ;
case ".sld": return "application/x-sld" ;
case ".smi": return "application/smil" ;
case ".smk": return "application/x-smk" ;
case ".smil": return "application/smil" ;
case ".spc": return "application/x-pkcs7-certificates" ;
case ".spl": return "application/futuresplash" ;
case ".ssm": return "application/streamingmedia" ;
case ".stl": return "application/vnd.ms-pki.stl" ;
case ".sst": return "application/vnd.ms-pki.certstore" ;
case ".tdf": return "application/x-tdf" ;
case ".tga": return "application/x-tga" ;
case ".sty": return "application/x-sty" ;
case ".swf": return "application/x-shockwave-flash" ;
case ".tg4": return "application/x-tg4" ;
case ".tif": return "application/x-tif" ;
case ".vdx": return "application/vnd.visio" ;
case ".vpg": return "application/x-vpeg005" ;
case ".vst": return "application/vnd.visio" ;
case ".vsw": return "application/vnd.visio" ;
case ".vtx": return "application/vnd.visio" ;
case ".torrent": return "application/x-bittorrent" ;
case ".vda": return "application/x-vda" ;
case ".vsd": return "application/vnd.visio" ;
case ".vss": return "application/vnd.visio" ;
case ".vsx": return "application/vnd.visio" ;
case ".wb1": return "application/x-wb1" ;
case ".wb3": return "application/x-wb3" ;
case ".wiz": return "application/msword" ;
case ".wk4": return "application/x-wk4" ;
case ".wks": return "application/x-wks" ;
case ".wb2": return "application/x-wb2" ;
case ".wk3": return "application/x-wk3" ;
case ".wkq": return "application/x-wkq" ;
case ".wmf": return "application/x-wmf" ;
case ".wmd": return "application/x-ms-wmd" ;
case ".wp6": return "application/x-wp6" ;
case ".wpg": return "application/x-wpg" ;
case ".wq1": return "application/x-wq1" ;
case ".wri": return "application/x-wri" ;
case ".ws": return "application/x-ws" ;
case ".wmz": return "application/x-ms-wmz" ;
case ".wpd": return "application/x-wpd" ;
case ".wpl": return "application/vnd.ms-wpl" ;
case ".wr1": return "application/x-wr1" ;
case ".wrk": return "application/x-wrk" ;
case ".ws2": return "application/x-ws" ;
case ".xdp": return "application/vnd.adobe.xdp" ;
case ".xfd": return "application/vnd.adobe.xfd" ;
case ".xfdf": return "application/vnd.adobe.xfdf" ;
case ".xls": return "application/vnd.ms-excel" ;
case ".xwd": return "application/x-xwd" ;
case ".sis": return "application/vnd.symbian.install" ;
case ".x_t": return "application/x-x_t" ;
case ".apk": return "application/vnd.android.package-archive" ;
case ".x_b": return "application/x-x_b" ;
case ".sisx": return "application/vnd.symbian.install" ;
case ".ipa": return "application/vnd.iphone" ;
case ".xap": return "application/x-silverlight-app" ;
case ".xlw": return "application/x-xlw" ;
case ".xpl": return "audio/scpls" ;
case ".anv": return "application/x-anv" ;
case ".uin": return "application/x-icq" ;
case ".001": return " application/x-001";
case ".301": return " application/x-301";
case ".323": return " text/h323";
case ".906": return " application/x-906";
case ".907": return " drawing/907";
case ".acp": return " audio/x-mei-aac";
case ".aif": return " audio/aiff";
case ".aifc": return " audio/aiff";
case ".aiff": return " audio/aiff";
case ".asa": return " text/asa";
case ".asf": return " video/x-ms-asf";
case ".asp": return " text/asp";
case ".asx": return " video/x-ms-asf";
case ".au": return " audio/basic";
case ".avi": return " video/avi";
case ".biz": return " text/xml";
case ".class": return " java/*";
case ".cml": return " text/xml";
case ".css": return " text/css";
case ".dcd": return " text/xml";
case ".eml": return " message/rfc822";
case ".ent": return " text/xml";
case ".fax": return " image/fax";
case ".fo": return " text/xml";
case ".gcd": return " application/x-gcd";
case ".gif": return " image/gif";
case ".htc": return " text/x-component";
case ".htm": return " text/html";
case ".html": return " text/html";
case ".htt": return " text/webviewhtml";
case ".htx": return " text/html";
case ".IVF": return " video/x-ivf";
case ".java": return " java/*";
case ".jfif": return " image/jpeg";
case ".jpeg": return " image/jpeg";
case ".jsp": return " text/html";
case ".la1": return " audio/x-liquid-file";
case ".lavs": return " audio/x-liquid-secure";
case ".lmsff": return " audio/x-la-lms";
case ".m1v": return " video/x-mpeg";
case ".m2v": return " video/x-mpeg";
case ".m3u": return " audio/mpegurl";
case ".m4e": return " video/mpeg4";
case ".math": return " text/xml";
case ".mht": return " message/rfc822";
case ".mhtml": return " message/rfc822";
case ".mid": return " audio/mid";
case ".midi": return " audio/mid";
case ".mml": return " text/xml";
case ".mnd": return " audio/x-musicnet-download";
case ".mns": return " audio/x-musicnet-stream";
case ".movie": return " video/x-sgi-movie";
case ".mp1": return " audio/mp1";
case ".mp2": return " audio/mp2";
case ".mp2v": return " video/mpeg";
case ".mpa": return " video/x-mpg";
case ".mpe": return " video/x-mpeg";
case ".mpeg": return " video/mpg";
case ".mpg": return " video/mpg";
case ".mpga": return " audio/rn-mpeg";
case ".mps": return " video/x-mpeg";
case ".mpv": return " video/mpg";
case ".mpv2": return " video/mpeg";
case ".mtx": return " text/xml";
case ".net": return " image/pnetvue";
case ".nws": return " message/rfc822";
case ".odc": return " text/x-ms-odc";
case ".plg": return " text/html";
case ".pls": return " audio/scpls";
case ".r3t": return " text/vnd.rn-realtext3d";
case ".ram": return " audio/x-pn-realaudio";
case ".rmi": return " audio/mid";
case ".rmm": return " audio/x-pn-realaudio";
case ".rp": return " image/vnd.rn-realpix";
case ".rt": return " text/vnd.rn-realtext";
case ".slk": return " drawing/x-slk";
case ".snd": return " audio/basic";
case ".sol": return " text/plain";
case ".sor": return " text/plain";
case ".spp": return " text/xml";
case ".stm": return " text/html";
case ".svg": return " text/xml";
case ".tiff": return " image/tiff";
case ".tld": return " text/xml";
case ".top": return " drawing/x-top";
case ".tsd": return " text/xml";
case ".txt": return " text/plain";
case ".uls": return " text/iuls";
case ".vcf": return " text/x-vcard";
case ".vml": return " text/xml";
case ".vxml": return " text/xml";
case ".wav": return " audio/wav";
case ".wax": return " audio/x-ms-wax";
case ".wbmp": return " image/vnd.wap.wbmp";
case ".wm": return " video/x-ms-wm";
case ".wma": return " audio/x-ms-wma";
case ".wml": return " text/vnd.wap.wml";
case ".wmv": return " video/x-ms-wmv";
case ".wmx": return " video/x-ms-wmx";
case ".wsc": return " text/scriptlet";
case ".wsdl": return " text/xml";
case ".wvx": return " video/x-ms-wvx";
case ".xdr": return " text/xml";
case ".xq": return " text/xml";
case ".xql": return " text/xml";
case ".xquery": return " text/xml";
case ".xsd": return " text/xml";
case ".xsl": return " text/xml";
case ".xslt": return " text/xml";
default: return "image/jpeg";
}
}
}
