A watermark image of the Java implementation picture watermark (SPRINGMVC + Jsp)

Image watermark is not only the watermark text can also be a picture, this time to achieve a watermark image watermark picture, after the need to use a code batch processing their own pictures.

everybody look first .

Code Writing

1. Import the relevant rack package

2. Configure the XML file
Xml

    <Servlet>        <Servlet-name>Dispatcherservlet</servlet-name>        <Servlet-class>Org.Springframework.Web.Servlet.Dispatcherservlet</servlet-class>        <Init-param>            <Param-name>Contextconfiglocation</param-name>            <Param-value>Classpath:springmvc.XML</param-value>        </init-param>        <Load-on-startup>1</load-on-startup>    </servlet>    <Servlet-mapping>        <Servlet-name>Dispatcherservlet</servlet-name>        <Url-pattern>/</url-pattern>    </servlet-mapping>

Springmvc.xml

<mvc:default-servlet-handler/> <mvc:annotation-driven/> <context:component-scan base-package="Com.wenteryan"></context:component-scan> <beanclass="Org.springframework.web.servlet.view.InternalResourceViewResolver"> < Property name="prefix"Value="/"></ Property> < Property name="suffix"Value=". JSP"></ Property> < Property name="Viewclass"Value="Org.springframework.web.servlet.view.JstlView"></ Property> </bean> <beanID="Multipartresolver"             class="Org.springframework.web.multipart.commons.CommonsMultipartResolver"> < Property name="Defaultencoding"Value="UTF-8"></ Property> < Property name="Maxuploadsize"Value="10485760000"></ Property> < Property name="Maxinmemorysize"Value="40960"></ Property> </bean>

3. Writing the service class interface

Imagemarkservice.java

publicstaticfinal"logo.png" ;    publicwatermark(CommonsMultipartFile file, String uploadPath,             String realUploadPath) ;

4. Writing service class implementations

Uploadservice.java

@Service Public classUploadservice { PublicStringUploadimage(commonsmultipartfile file, String Uploadpath, String realuploadpath) {InputStream is=NULL; OutputStream OS =NULL;Try{ is= File.getinputstream (); OS =NewFileOutputStream (realuploadpath+"/"+file.getoriginalfilename ());byte[] buffer =New byte[1024x768] ;intLen =0; while((len= is. Read (buffer)) >0) {os.write (buffer); }        }Catch(Exception e)        {E.printstacktrace (); }finally{if( is!=NULL) {Try{ is. Close (); }Catch(IOException e) {//TODO auto-generated catch blockE.printstacktrace (); }            }if(os!=NULL) {Try{Os.close (); }Catch(IOException e) {//TODO auto-generated catch blockE.printstacktrace (); }            }        }returnuploadpath+"/"+file.getoriginalfilename (); }}

Imagemarkserviceimpl.java

@Service Public  class Imagemarkserviceimpl implements imagemarkservice {    @Override     PublicStringWatermark(commonsmultipartfile file, String Uploadpath, String realuploadpath) {//TODO auto-generated method stubString Logofilename ="Logoimage"+file.getoriginalfilename (); OutputStream OS =NULL; String Logopath = realuploadpath+"/"+logo;Try{Image image2 = Imageio.read (File.getinputstream ());intwidth = image2.getwidth (NULL) ;intHeight = image2.getheight (NULL) ; BufferedImage Bufferimage =NewBufferedImage (width, height, bufferedimage.type_int_rgb);            Graphics2D g = bufferimage.creategraphics (); G.drawimage (Image2,0,0, width, height,NULL) ; File logo =NewFile (Logopath); Image Imagelogo = imageio.read (logo);intWidth1 = Imagelogo.getwidth (NULL) ;intheight1 = Imagelogo.getheight (NULL) ;intWidthdiff = width-width1;intHeightdiff = height-height1;intx = x;inty = y;if(X>widthdiff)            {x = Widthdiff; }if(Y>heightdiff)            {Y=heightdiff;            } g.setcomposite (Alphacomposite.getinstance (Alphacomposite.src_atop, ALPHA)); G.drawimage (Imagelogo, x, Y,NULL) ;            G.dispose (); OS =NewFileOutputStream (realuploadpath+"/"+logofilename);            JPEGImageEncoder en = jpegcodec.createjpegencoder (OS);        En.encode (Bufferimage); }Catch(Exception e)        {E.printstacktrace (); }finally{if(os!=NULL) {Try{Os.close (); }Catch(IOException e) {//TODO auto-generated catch blockE.printstacktrace (); }            }        }returnuploadpath+"/"+logofilename; }}

5. Write action

Watermarkaction.java

@RequestMapping (value="/watermark", Method=requestmethod. POST) Public Modelandview Watermark (@RequestParam ("Image") Commonsmultipartfile file, HttpSession session) throws Exception {String Uploadpath ="/images" ;String Realuploadpath = Session. Getservletcontext(). Getrealpath(Uploadpath);String IMAGEURL = Uploadservice. Uploadimage(File, Uploadpath, Realuploadpath);String Logoimageurl = Imagemarkservice. Watermark(File, Uploadpath, Realuploadpath);Modelandviewret= new Modelandview ();        ret. AddObject("ImageUrl", IMAGEURL);        ret. AddObject("Logoimageurl", Logoimageurl);        ret. Setviewname("Watermark");Returnret ;}

6. Writing the page

watermark.jsp

<div class="Panel-body">        <img class="img-responsive img-rounded" src="${ Pagecontext.request.contextpath}${imageurl} "/>        <img class="img-responsive img-rounded" src="${ Pagecontext.request.contextpath}${logoimageurl} "/>        <a class="btn btn-warning" href="${ PageContext.request.contextPath} ">Return</a></div>

Summary

Java implementation watermark is very convenient, will be watermark image and watermark text, after the need to use this code batch processing their own pictures. GREAT!!!!!!.

A watermark image of the Java implementation picture watermark (SPRINGMVC + Jsp)