—— 原由就在Content-Type响应头上;
Content-Type响应头的作用: Content-Type 用于向接收方说明传输资源的媒体类型,从而让浏览器用指定码表去解码。.../jpeg"),
TIFF("tiff", "image/tiff"),
GIF("gif", "image/gif"),
JFIF("jfif", "image/jpeg"),...PNG("png", "image/png"),
TIF("tif", "image/tiff"),
ICO("ico", "image/x-icon"),
JPEG(..."jpeg", "image/jpeg"),
WBMP("wbmp", "image/vnd.wap.wbmp"),
FAX("fax", "image/fax"),
NET("...net", "image/pnetvue"),
JPE("jpe", "image/jpeg"),
RP("rp", "image/vnd.rn-realpix");
private