Java upload different types of images, save the database (Base64 bitmap to network picture)

Directly on the code, okay?

Method Name:

Generateimage
To pass the parameter:

Base64img: Uploaded Base64 code

Realpath: The resulting picture path

Imgtypes: Picture Type

String imgBase64 = Request.getparameter ("userImgbase64");
Get Current server path
String Realpath = Request.getservletcontext (). Getrealpath ("") + "\\img";
System.out.println ();   http://192.168.191.1:8080/MyWeb/img

string[] Imgtype = Imgbase64.split (",");

Get the picture type (if there is no type, it looks like an error)
String imgtypes = imgtype[0].tostring (). substring (one, imgtype[0].tostring (). Length ()-7);

String userImgbase64 = Generateimage (imgbase64,realpath,imgtypes);

System.out.println (Realpath);   Http://192.168.191.1:8080/MyWeb/img/1532493648717.png

//Base64 decoding a byte array string and generating a picture      Public Staticstring Generateimage (String base64img,string realpath,string imgtypes) {string Ret_filename=NULL; //Temporary file pathFile File_normer =NewFile (realpath+ "/"); if(!file_normer.exists ())           {File_normer.mkdirs (); }            if(Base64img = =NULL)//image data is empty                 return"Image data is empty"; Base64img= Base64img.replaceall ("data:image/" +imgtypes+ "; base64," "," "); Base64decoder Decoder=NewBase64decoder (); Try {                     //Base64 decoding                 byte[] B =Decoder.decodebuffer (BASE64IMG);  for(inti = 0; i < b.length; ++i) {if(B[i] < 0) {//Adjust Exception DataB[i] + = 256; }                     }                     //Create a JPEG pictureRet_filename = System.currenttimemillis () + "." +imgtypes+ ""; File File=NewFile (Realpath + "/" +ret_filename); OutputStream out=Newfileoutputstream (file);                     Out.write (b);                     Out.flush ();                 Out.close (); } Catch(Exception e) {e.printstacktrace (); }                 returnRet_filename; }

Java upload different types of images, save the database (Base64 bitmap to network picture)