Java 实现图片水印之水印图片（SpringMVC + Jsp）

图片水印不仅水印文字还可以是图片，本次实现图片水印之水印图片，以后有需要可以用个代码批量处理自己的图片了。

大家先看效果图

代码编写

1.导入相关架包

2.配置XML文件
web.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><bean class="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><bean id="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.编写服务类接口

ImageMarkService.java

public static final String LOGO = "logo.png" ;public String watermark(CommonsMultipartFile file, String uploadPath, String realUploadPath) ;

4.编写服务类实现

UploadService.java

@Service
public class UploadService {public String uploadImage(CommonsMultipartFile file, String uploadPath, String realUploadPath) {InputStream is = null ;OutputStream os = null ;try {is = file.getInputStream() ;os = new FileOutputStream(realUploadPath+"/"+file.getOriginalFilename()) ;byte[] buffer = new byte[1024] ;int len = 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();}}}return uploadPath+"/"+file.getOriginalFilename() ;}
}

ImageMarkService .java

public interface ImageMarkService {public static final String MARK_TEXT = "wenteryan" ;public static final String FONT_NAME = "微软雅黑" ;public static final int FONT_SIZE = 120 ;public static final int FONT_STYPE = Font.BOLD ;public static final Color FONT_COLOR = Color.RED ;public static final int X = 10 ;public static final int Y = 10 ;public static float ALPHA = 0.3F ;public static final String LOGO = "logo.png" ;public String watermark(CommonsMultipartFile file, String uploadPath, String realUploadPath) ;    }

ImageMarkServiceImpl.java

@Service
public class ImageMarkServiceImpl implements ImageMarkService {@Overridepublic String watermark(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()) ;int width = image2.getWidth(null) ;int height = image2.getHeight(null) ;BufferedImage bufferImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB) ;Graphics2D g = bufferImage.createGraphics() ;g.drawImage(image2, 0, 0, width, height, null) ;File logo = new File(logoPath) ;Image imageLogo = ImageIO.read(logo) ;int width1 = imageLogo.getWidth(null) ;int height1 = imageLogo.getHeight(null) ;int widthDiff = width-width1 ;int heightDiff = height-height1 ;int x = X ;int y = 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 = new FileOutputStream(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();}}}return uploadPath+"/"+logoFileName;}}

5.编写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) ;ModelAndView ret = new ModelAndView() ;ret.addObject("imageUrl", imageUrl) ;ret.addObject("logoImageUrl", logoImageUrl) ;ret.setViewName("watermark");return ret ;}

6.编写页面

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 }">返回</a></div>

总结

Java实现水印还是非常方便的，会了水印图片与水印文字，以后有需要可以用这个代码批量处理自己的图片了。棒棒的！！！！！！

Java 实现图片水印之水印图片（SpringMVC + Jsp）相关推荐

jsp text 水印_java实现图片上加文字水印（SpringMVC + Jsp）
看之前要先对SpringMVC进行了解打好基础,下面直接先看效果图代码编写 1.导入相关架包 2.配置文件 web.xml watermarkspringmvc dispatcherServlet ...
java水印图片,Java添加水印+图片水印+文字水印
水印的处理...以下有两种方式: 第一种是添加文字水印: 第二种是添加图片水印现在贴上代码 2种的源码 package com.yjf.image; import java.awt.AlphaCom ...
java如何添加自定义的图片_java代码将图片加上自定义水印 -4
java代码将图片加上自定义水印,然后生成了新的图片 import java.awt.Color; import java.awt.Font; import java.awt.Graphics2D; ...
java 批量为图片添加图标水印和文字水印
需求,给指定目录下面以.jpg结尾的文件,添加图标水印和文字水印文章目录一.基础版本二.升级版本三.依赖一.基础版本 package com.gblfy.util;import com.su ...
java 给图片添加暗水印_java 实现给图片添加水印
原图如下: 代码如下: package test; import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Fon ...
ImageUtils.java：图片处理工具类[裁剪/图片水印/文字水印/缩放补白/Base64加密解密]
用到的jar包: commons-beanutils-1.8.0.jar commons-codec-1.10.jar package com.zhenzhigu.commons.util; im ...
Java添加水印+图片水印+文字水印
水印的处理...以下有两种方式: 第一种是添加文字水印: 第二种是添加图片水印现在贴上代码 2种的源码 http://www.qi788.com/info/43.html package com.y ...
java 压缩图片时候加水印
直接上代码: 图片压缩加水印 @Testpublic void TetsShuiYin() {// String path1 = "D:\\temp\\Flower.PNG"; / ...
JAVA实现图片加水印及Base64图片字符串加水印
JAVA实现图片加水印及Base64图片字符串加水印可将根据不同需求选择场景一,场景二来实现家水印操作,个人感觉比我上一遍文章<base64字符串加水印 >实在场景一: 涉及上送过来的 ...

Java 实现图片水印之水印图片（SpringMVC + Jsp）

大家先看效果图

代码编写

总结

Java 实现图片水印之水印图片（SpringMVC + Jsp）相关推荐

最新文章

热门文章