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- 指尖农民 2019-10-16
项目结构。。。。。
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- Jolie_Laide 2018-10-09
书写代码思路
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- Jolie_Laide 2018-10-05
课程目标：
了解Java图片水印实现思路
掌握文字水印和图片水印的实现
掌握多图片批量水印的实现
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- 慕的地7838724 2018-05-31
while循环判断条件中的width和height应该是图片的宽和高，老师误写了
具体代码如下：
public String waterMark(File image, String imageFileName,
String uploadPath, String realUploadPath) {
String logoFileName = "logo_" + imageFileName;
OutputStream os = null;
try {
Image img = ImageIO.read(image);
int imgWidth = img.getWidth(null);
int imgHeight = img.getHeight(null);
BufferedImage bufferedImage = new BufferedImage(imgWidth, imgHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bufferedImage.createGraphics();
g.drawImage(img, 0, 0, imgWidth, imgHeight, null);
g.setFont(new Font(FONT_NAME,FONT_STYLE,FONT_SIZE));
g.setColor(FONT_COLOR);
int width = FONT_SIZE*getTextLength(MARK_TEXT);
int height = FONT_SIZE;
//设置透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,ALPH));
g.rotate(Math.toRadians(-30),bufferedImage.getWidth()/2,bufferedImage.getHeight()/2);
int x = -width/2;
int y = -height/2;
while(x<imgWidth*1.5){
y = -height/2;
while(y<imgHeight*1.5){
g.drawString(MARK_TEXT, x, y);
y += height + 70;
}
x += width+70;
}
g.dispose();
os = new FileOutputStream(realUploadPath+"/"+logoFileName);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
encoder.encode(bufferedImage);
} catch (Exception e) {
e.printStackTrace();
} finally{
try {
if(os!=null)
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return uploadPath+"/"+logoFileName;
}
public int getTextLength(String text){
int length = text.length();
for (int i = 0; i < text.length(); i++) {
String s = String.valueOf(text.charAt(i));
if(s.getBytes().length>1){
length++;
}
}
length = length%2==0?length/2:length/2+1;
return length;
}-
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- 慕的地7838724 2018-05-30
使用文字水印实现类
在waterMarkAction中添加如下代码
（注意：这里的类名和视频的不相同，但类的实现代码一样）
IMarkService markService = new TextMarkServiceImpl();
imageInfo.setLogoImageURL(markService.waterMark(image, imageFileName, uploadPath, realPath));-
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- 慕的地7838724 2018-05-30
@Override
public String waterMark(File image, String imageFileName, String uploadPath,
String realUploadPath) {
String logoFileName = "logo_" + imageFileName;
OutputStream os = null;
try {
Image img = ImageIO.read(image);
int imgWidth = img.getWidth(null);
int imgHeight = img.getHeight(null);
BufferedImage bufferedImage = new BufferedImage(imgWidth, imgHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bufferedImage.createGraphics();
g.drawImage(img, 0, 0, imgWidth, imgHeight, null);
g.setFont(new Font(FONT_NAME,FONT_STYLE,FONT_SIZE));
g.setColor(FONT_COLOR);
//设置透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP));
int width = FONT_SIZE*getTextLength(MARK_TEXT);
int height = FONT_SIZE;
int widthDiff = imgWidth-width;
int heightDiff = imgHeight-height;
int x = X;
int y = Y;
x = x>widthDiff ? widthDiff : x;
y = y>heightDiff ? heightDiff : y;
g.drawString(MARK_TEXT, x, y+FONT_SIZE);
g.dispose();
os = new FileOutputStream(realUploadPath+"/"+logoFileName);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
encoder.encode(bufferedImage);
} catch (Exception e) {
e.printStackTrace();
} finally{
try {
if(os!=null)
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return uploadPath+"/"+logoFileName;
}
public int getTextLength(String text){
int length = text.length();
for (int i = 0; i < text.length(); i++) {
String s = String.valueOf(text.charAt(i));
if(s.getBytes().length>1){
length++;
}
}
length = length%2==0?length/2:length/2+1;
return length;
}-
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- 深山老龟 2018-05-06
提交页面
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- 深山老龟 2018-05-06
strtus.xml添加action配置
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- 深山老龟 2018-05-06
struts.xml
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- 深山老龟 2018-05-06
xml
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- 深山老龟 2018-05-06
jar
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- 深山老龟 2018-05-06
1
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- root750 2018-01-14
- Java图片水印实用工具类
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- junmoxiao_12 2017-09-12
- .....
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- junmoxiao_12 2017-09-12
- 设置bufferedImage对象
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- junmoxiao_12 2017-09-11
- BufferedImage 把对象储存到缓存中，提高运行效率。 Graohics2D 对对象进行操作 JPEGImageEncode 对对象进行编码，把内存中的对象刻录到我们的磁盘上
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- Jane_1986 2017-06-23
- 图片水印使用工具类
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- 慕用022239 2017-06-02
- **
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- Bond625 2017-02-20
- BufferedImage图片水印实用工具类
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- 花尾巴狼 2017-02-13
- 添加框架配置 删除没必要的 整合包
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- 花尾巴狼 2017-02-13
- 添加框架过滤配置
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- 滕玉龙 2016-12-26
- 1:41
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- 滕玉龙 2016-12-26
- <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>watermark</display-name> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
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- 小杜嘟嘟 2016-12-18
- dddd
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- mumukk 2016-10-26
- 水印实现思路
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- sunnylinner 2016-09-26
- MarkService markService = new MarkServiceImpl(); // picInfo.setImageURL( // uploadService.uploadImage(image, imageFileName, uploadPath, realUploadPath)); uploadService.uploadImage(image, imageFileName, uploadPath, realUploadPath); picInfo.setImageURL( markService.watermark(image, imageFileName, uploadPath, realUploadPath));
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- LiaoPan 2016-09-14
- 技术架构
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- dota1022 2016-09-10
- 图片水印实现思路 1.创建缓存图片对象(存在内存中,效率高)
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- 李木人 2016-08-19
- 用到的jar包： commons-fileupload-1.2.1.jar commons-io.1.3.2.jar commons-lang-2.4.jar commons-longging-1.1.1.jar freemarker-2.3.8.jar ognl-2.6.11.jar struts2-core-2.0.11.2.jar xwork-2.0.5.jar
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- 希文特_ 2016-08-16
- 水印制作思路
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