文章目录
1.引入字体
2.Windows环境下
如果在Windows上安装JAVA环境时，没有安装单独的jre1.8.0_141的话。那么字体就只放到\jdk1.8.0_141\jre\lib\fonts目前下。
3. Linux环境下
cat /etc/profile
找到上方的JAVA_HOME路径
[root@iZ2zeddfx87fxxx4m4dlxu8dZ fonts]# pwd #进入以下目录下
/home/jdk/jdk1.8.0_181/jre/lib/fonts
[root@iZ2zeddfx87fxxx4m4dlxu8dZ fonts]# mkdir fallback #创建一个空目录，用于放置外部字体
然后执行
[root@iZ2zeddfx87fw4m4dlxu8dZ fallback]# mkfontscale #不知道不执行是否可以
[root@iZ2zeddfx87fw4m4dlxu8dZ fallback]# mkfontdir #这个必须执行
这样就在fallback目录下多出了两个文件。注意不执行上方的mkfontscale和mkfontdir。即使把字体放到了指定的fonts目录下了。在CentOS下使用字体也会找不到的。会使用其他默认字体代替。这一点和Window上的不同。
我们可以通过比较两者fonts目录下的文件可以发现。
生成印章
Seal类代码：
java
package cn.com.yuanquanyun.bjca_scan;
import lombok.Builder;
import lombok.Getter;
import org.springframework.util.ResourceUtils;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.font.FontRenderContext;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
@Getter
@Builder
public class Seal {
// 起始位置
private static final int INIT_BEGIN = 5;
// 尺寸
private Integer size;
// 颜色
private Color color;
// 主字
private SealFont mainFont;
// 副字
private SealFont viceFont;
// 抬头
private SealFont titleFont;
// 中心字
private SealFont centerFont;
// 边线圆
private SealCircle borderCircle;
// 内边线圆
private SealCircle borderInnerCircle;
// 内线圆
private SealCircle innerCircle;
// 边线框
private Integer borderSquare;
// 加字
private String stamp;
/**
* 画公章
*/
public byte[] draw(String imgFmt) throws Exception {
if (borderSquare != null) {
return draw2(imgFmt); // 画私章
}
//1.画布
BufferedImage bi = new BufferedImage(size, size, BufferedImage.TYPE_4BYTE_ABGR);
//2.画笔
Graphics2D g2d = bi.createGraphics();
//2.1抗锯齿设置
//文本不抗锯齿，否则圆中心的文字会被拉长
RenderingHints hints = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
//其他图形抗锯齿
hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHints(hints);
//2.2设置背景透明度
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 0));
//2.3填充矩形
g2d.fillRect(0, 0, size, size);
//2.4重设透明度，开始画图
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1));
//2.5设置画笔颜色
g2d.setPaint(color == null ? Color.RED : color);
//3.画边线圆
if (borderCircle != null) {
drawCircle(g2d, borderCircle, INIT_BEGIN, INIT_BEGIN);
} else {
throw new Exception("BorderCircle can not null！");
}
int borderCircleWidth = borderCircle.getWidth();
int borderCircleHeight = borderCircle.getHeight();
//4.画内边线圆
if (borderInnerCircle != null) {
int x = INIT_BEGIN + borderCircleWidth - borderInnerCircle.getWidth();
int y = INIT_BEGIN + borderCircleHeight - borderInnerCircle.getHeight();
drawCircle(g2d, borderInnerCircle, x, y);
}
//5.画内环线圆
if (innerCircle != null) {
int x = INIT_BEGIN + borderCircleWidth - innerCircle.getWidth();
int y = INIT_BEGIN + borderCircleHeight - innerCircle.getHeight();
drawCircle(g2d, innerCircle, x, y);
}
//6.画弧形主文字
if (borderCircleHeight != borderCircleWidth) {
drawArcFont4Oval(g2d, borderCircle, mainFont, true);
} else {
drawArcFont4Circle(g2d, borderCircleHeight, mainFont, true);
}
//7.画弧形副文字
if (borderCircleHeight != borderCircleWidth) {
drawArcFont4Oval(g2d, borderCircle, viceFont, false);
} else {
drawArcFont4Circle(g2d, borderCircleHeight, viceFont, false);
}
//8.画中心字
drawFont(g2d, (borderCircleWidth + INIT_BEGIN) * 2, (borderCircleHeight + INIT_BEGIN) * 2, centerFont);
//9.画抬头文字
drawFont(g2d, (borderCircleWidth + INIT_BEGIN) * 2, (borderCircleHeight + INIT_BEGIN) * 2, titleFont);
g2d.dispose();
//
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
boolean png = ImageIO.write(bi, imgFmt, outputStream);
byte[] imgBytes = outputStream.toByteArray();
outputStream.flush();
outputStream.close();
return imgBytes;
}
public byte[] draw(String pngPath,String imgFmt) throws Exception {//如果只是生成印章字节数组，不进行输出的话，传入的pngPath，无用
byte[] imgBytes = draw(imgFmt);
return imgBytes;
// FileOutputStream fileOutputStream = new FileOutputStream(new File(pngPath));
// fileOutputStream.write(imgBytes);
}
/**
* 绘制圆弧形文字
*/
private static void drawArcFont4Circle(Graphics2D g2d, int circleRadius, SealFont font, boolean isTop) throws IOException, FontFormatException {
if (font == null) {
return;
}
//1.字体长度
int textLen = font.getText().length();
//2.字体大小，默认根据字体长度动态设定
int size = font.getSize() == null ? (55 - textLen * 2) : font.getSize();
//3.字体样式
int style = font.getBold() ? Font.BOLD : Font.PLAIN;
//4.构造字体
// Font f = new Font(font.getFamily(), style, size);//默认从JRE中的fonts目录下读取
//
File file = new File("config/font/gzkzzt.ttf");//如果如CSDN上方描述的那样已经把字体放到jre下了。这里就不用写死指定了
// System.out.println("已读取字体文件");
Font f = Font.createFont(Font.TRUETYPE_FONT, file);
f = f.deriveFont(style,size);
FontRenderContext context = g2d.getFontRenderContext();
Rectangle2D rectangle = f.getStringBounds(font.getText(), context);
//5.文字之间间距，默认动态调整
double space;
if (font.getSpace() != null) {
space = font.getSpace();
} else {
if (textLen == 1) {
space = 0;
} else {
space = rectangle.getWidth() / (textLen - 1) * 0.9;
}
}
//6.距离外圈距离
int margin = font.getMargin() == null ? INIT_BEGIN : font.getMargin();
//7.写字
double newRadius = circleRadius + rectangle.getY() - margin;
double radianPerInterval = 2 * Math.asin(space / (2 * newRadius));
double fix = 0.04;
if (isTop) {
fix = 0.18;
}
double firstAngle;
if (!isTop) {
if (textLen % 2 == 1) {
firstAngle = Math.PI + Math.PI / 2 - (textLen - 1) * radianPerInterval / 2.0 - fix;
} else {
firstAngle = Math.PI + Math.PI / 2 - ((textLen / 2.0 - 0.5) * radianPerInterval) - fix;
}
} else {
if (textLen % 2 == 1) {
firstAngle = (textLen - 1) * radianPerInterval / 2.0 + Math.PI / 2 + fix;
} else {
firstAngle = (textLen / 2.0 - 0.5) * radianPerInterval + Math.PI / 2 + fix;
}
}
for (int i = 0; i < textLen; i++) {
double theta;
double thetaX;
double thetaY;
if (!isTop) {
theta = firstAngle + i * radianPerInterval;
thetaX = newRadius * Math.sin(Math.PI / 2 - theta);
thetaY = newRadius * Math.cos(theta - Math.PI / 2);
} else {
theta = firstAngle - i * radianPerInterval;
thetaX = newRadius * Math.sin(Math.PI / 2 - theta);
thetaY = newRadius * Math.cos(theta - Math.PI / 2);
}
AffineTransform transform;
if (!isTop) {
transform = AffineTransform.getRotateInstance(Math.PI + Math.PI / 2 - theta);
} else {
transform = AffineTransform.getRotateInstance(Math.PI / 2 - theta + Math.toRadians(8));
}
Font f2 = f.deriveFont(transform);
g2d.setFont(f2);
g2d.drawString(font.getText().substring(i, i + 1), (float) (circleRadius + thetaX + INIT_BEGIN), (float) (circleRadius - thetaY + INIT_BEGIN));
}
}
/**
* 绘制椭圆弧形文字
*/
private static void drawArcFont4Oval(Graphics2D g2d, SealCircle sealCircle, SealFont font, boolean isTop) {
if (font == null) {
return;
}
float radiusX = sealCircle.getWidth();
float radiusY = sealCircle.getHeight();
float radiusWidth = radiusX + sealCircle.getLine();
float radiusHeight = radiusY + sealCircle.getLine();
//1.字体长度
int textLen = font.getText().length();
//2.字体大小，默认根据字体长度动态设定
int size = font.getSize() == null ? 25 + (10 - textLen) / 2 : font.getSize();
//3.字体样式
int style = font.getBold() ? Font.BOLD : Font.PLAIN;
//4.构造字体
Font f = new Font(font.getFamily(), style, size);
//5.总的角跨度
double totalArcAng = font.getSpace() * textLen;
//6.从边线向中心的移动因子
float minRat = 0.90f;
double startAngle = isTop ? -90f - totalArcAng / 2f : 90f - totalArcAng / 2f;
double step = 0.5;
int alCount = (int) Math.ceil(totalArcAng / step) + 1;
double[] angleArr = new double[alCount];
double[] arcLenArr = new double[alCount];
int num = 0;
double accArcLen = 0.0;
angleArr[num] = startAngle;
arcLenArr[num] = accArcLen;
num++;
double angR = startAngle * Math.PI / 180.0;
double lastX = radiusX * Math.cos(angR) + radiusWidth;
double lastY = radiusY * Math.sin(angR) + radiusHeight;
for (double i = startAngle + step; num < alCount; i += step) {
angR = i * Math.PI / 180.0;
double x = radiusX * Math.cos(angR) + radiusWidth, y = radiusY * Math.sin(angR) + radiusHeight;
accArcLen += Math.sqrt((lastX - x) * (lastX - x) + (lastY - y) * (lastY - y));
angleArr[num] = i;
arcLenArr[num] = accArcLen;
lastX = x;
lastY = y;
num++;
}
double arcPer = accArcLen / textLen;
for (int i = 0; i < textLen; i++) {
double arcL = i * arcPer + arcPer / 2.0;
double ang = 0.0;
for (int p = 0; p < arcLenArr.length - 1; p++) {
if (arcLenArr[p] <= arcL && arcL <= arcLenArr[p + 1]) {
ang = (arcL >= ((arcLenArr[p] + arcLenArr[p + 1]) / 2.0)) ? angleArr[p + 1] : angleArr[p];
break;
}
}
angR = (ang * Math.PI / 180f);
Float x = radiusX * (float) Math.cos(angR) + radiusWidth;
Float y = radiusY * (float) Math.sin(angR) + radiusHeight;
double qxang = Math.atan2(radiusY * Math.cos(angR), -radiusX * Math.sin(angR));
double fxang = qxang + Math.PI / 2.0;
int subIndex = isTop ? i : textLen - 1 - i;
String c = font.getText().substring(subIndex, subIndex + 1);
//获取文字高宽
FontMetrics fm = sun.font.FontDesignMetrics.getMetrics(f);
int w = fm.stringWidth(c), h = fm.getHeight();
if (isTop) {
x += h * minRat * (float) Math.cos(fxang);
y += h * minRat * (float) Math.sin(fxang);
x += -w / 2f * (float) Math.cos(qxang);
y += -w / 2f * (float) Math.sin(qxang);
} else {
x += (h * minRat) * (float) Math.cos(fxang);
y += (h * minRat) * (float) Math.sin(fxang);
x += w / 2f * (float) Math.cos(qxang);
y += w / 2f * (float) Math.sin(qxang);
}
// 旋转
AffineTransform affineTransform = new AffineTransform();
affineTransform.scale(0.8, 1);
if (isTop)
affineTransform.rotate(Math.toRadians((fxang * 180.0 / Math.PI - 90)), 0, 0);
else
affineTransform.rotate(Math.toRadians((fxang * 180.0 / Math.PI + 180 - 90)), 0, 0);
Font f2 = f.deriveFont(affineTransform);
g2d.setFont(f2);
g2d.drawString(c, x.intValue() + INIT_BEGIN, y.intValue() + INIT_BEGIN);
}
}
/**
* 画文字
*/
private static void drawFont(Graphics2D g2d, int circleWidth, int circleHeight, SealFont font) {
if (font == null) {
return;
}
//1.字体长度
int textLen = font.getText().length();
//2.字体大小，默认根据字体长度动态设定
int size = font.getSize() == null ? (55 - textLen * 2) : font.getSize();
//3.字体样式
int style = font.getBold() ? Font.BOLD : Font.PLAIN;
//4.构造字体
Font f = new Font(font.getFamily(), style, size);
g2d.setFont(f);
FontRenderContext context = g2d.getFontRenderContext();
String[] fontTexts = font.getText().split("\n");
if (fontTexts.length > 1) {
int y = 0;
for (String fontText : fontTexts) {
y += Math.abs(f.getStringBounds(fontText, context).getHeight());
}
//5.设置上边距
float margin = INIT_BEGIN + (float) (circleHeight / 2 - y / 2);
for (String fontText : fontTexts) {
Rectangle2D rectangle2D = f.getStringBounds(fontText, context);
g2d.drawString(fontText, (float) (circleWidth / 2 - rectangle2D.getCenterX()), margin);
margin += Math.abs(rectangle2D.getHeight());
}
} else {
Rectangle2D rectangle2D = f.getStringBounds(font.getText(), context);
//5.设置上边距，默认在中心
float margin = font.getMargin() == null ?
(float) (circleHeight / 2 - rectangle2D.getCenterY()) :
(float) (circleHeight / 2 - rectangle2D.getCenterY()) + (float) font.getMargin();
g2d.drawString(font.getText(), (float) (circleWidth / 2 - rectangle2D.getCenterX()), margin);
}
}
/**
* 画圆
*/
private static void drawCircle(Graphics2D g2d, SealCircle circle, int x, int y) {
if (circle == null) {
return;
}
//1.圆线条粗细默认是圆直径的1/35
int lineSize = circle.getLine() == null ? circle.getHeight() * 2 / (35) : circle.getLine();
//2.画圆
g2d.setStroke(new BasicStroke(lineSize));
g2d.drawOval(x, y, circle.getWidth() * 2, circle.getHeight() * 2);
}
/**
* 画私章
*/
public byte[] draw2(String imgFmt) throws Exception {
if (mainFont == null || mainFont.getText().length() < 2 || mainFont.getText().length() > 4) {
throw new IllegalArgumentException("请输入2-4个字");
}
int fixH = 18;
int fixW = 2;
//1.画布
BufferedImage bi = new BufferedImage(size, size / 2, BufferedImage.TYPE_4BYTE_ABGR);
//2.画笔
Graphics2D g2d = bi.createGraphics();
//2.1设置画笔颜色
g2d.setPaint(Color.RED);
//2.2抗锯齿设置
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
//3.写签名
int marginW = fixW + borderSquare;
float marginH;
FontRenderContext context = g2d.getFontRenderContext();
Rectangle2D rectangle;
Font f;
if (mainFont.getText().length() == 2) {
if (stamp != null && stamp.trim().length() > 0) {
bi = drawThreeFont(bi, g2d, mainFont.append(stamp), borderSquare, size, fixH, fixW, true);
} else {
f = new Font(mainFont.getFamily(), Font.BOLD, mainFont.getSize());
g2d.setFont(f);
rectangle = f.getStringBounds(mainFont.getText().substring(0, 1), context);
marginH = (float) (Math.abs(rectangle.getCenterY()) * 2 + marginW) + fixH - 4;
g2d.drawString(mainFont.getText().substring(0, 1), marginW, marginH);
marginW += Math.abs(rectangle.getCenterX()) * 2 + (mainFont.getSpace() == null ? INIT_BEGIN : mainFont.getSpace());
g2d.drawString(mainFont.getText().substring(1), marginW, marginH);
//拉伸
BufferedImage nbi = new BufferedImage(size, size, bi.getType());
Graphics2D ng2d = nbi.createGraphics();
ng2d.setPaint(Color.RED);
ng2d.drawImage(bi, 0, 0, size, size, null);
//画正方形
ng2d.setStroke(new BasicStroke(borderSquare));
ng2d.drawRect(0, 0, size, size);
ng2d.dispose();
bi = nbi;
}
} else if (mainFont.getText().length() == 3) {
if (stamp != null && stamp.trim().length() > 0) {
bi = drawFourFont(bi, mainFont.append(stamp), borderSquare, size, fixH, fixW);
} else {
bi = drawThreeFont(bi, g2d, mainFont, borderSquare, size, fixH, fixW, false);
}
} else {
bi = drawFourFont(bi, mainFont, borderSquare, size, fixH, fixW);
}
g2d.dispose();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
boolean png = ImageIO.write(bi,imgFmt, outputStream);
byte[] imgBytes = outputStream.toByteArray();
outputStream.flush();
outputStream.close();
return imgBytes;
}
/**
* 画三字
*/
private static BufferedImage drawThreeFont(BufferedImage bi, Graphics2D g2d, SealFont font, int lineSize, int imageSize, int fixH, int fixW, boolean isWithYin) {
fixH -= 9;
int marginW = fixW + lineSize;
//设置字体
Font f = new Font(font.getFamily(), Font.BOLD, font.getSize());
g2d.setFont(f);
FontRenderContext context = g2d.getFontRenderContext();
Rectangle2D rectangle = f.getStringBounds(font.getText().substring(0, 1), context);
float marginH = (float) (Math.abs(rectangle.getCenterY()) * 2 + marginW) + fixH;
int oldW = marginW;
if (isWithYin) {
g2d.drawString(font.getText().substring(2, 3), marginW, marginH);
marginW += rectangle.getCenterX() * 2 + (font.getSpace() == null ? INIT_BEGIN : font.getSpace());
} else {
marginW += rectangle.getCenterX() * 2 + (font.getSpace() == null ? INIT_BEGIN : font.getSpace());
g2d.drawString(font.getText().substring(0, 1), marginW, marginH);
}
//拉伸
BufferedImage nbi = new BufferedImage(imageSize, imageSize, bi.getType());
Graphics2D ng2d = nbi.createGraphics();
ng2d.setPaint(Color.RED);
ng2d.drawImage(bi, 0, 0, imageSize, imageSize, null);
//画正方形
ng2d.setStroke(new BasicStroke(lineSize));
ng2d.drawRect(0, 0, imageSize, imageSize);
ng2d.dispose();
bi = nbi;
g2d = bi.createGraphics();
g2d.setPaint(Color.RED);
g2d.setFont(f);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
if (isWithYin) {
g2d.drawString(font.getText().substring(0, 1), marginW, marginH += fixH);
rectangle = f.getStringBounds(font.getText(), context);
marginH += Math.abs(rectangle.getHeight());
g2d.drawString(font.getText().substring(1), marginW, marginH);
} else {
g2d.drawString(font.getText().substring(1, 2), oldW, marginH += fixH);
rectangle = f.getStringBounds(font.getText(), context);
marginH += Math.abs(rectangle.getHeight());
g2d.drawString(font.getText().substring(2, 3), oldW, marginH);
}
return bi;
}
/**
* 画四字
*/
private static BufferedImage drawFourFont(BufferedImage bi, SealFont font, int lineSize, int imageSize, int fixH, int fixW) throws IOException, FontFormatException {
int marginW = fixW + lineSize;
//拉伸
BufferedImage nbi = new BufferedImage(imageSize, imageSize, bi.getType());
Graphics2D ng2d = nbi.createGraphics();
ng2d.setPaint(Color.RED);
ng2d.drawImage(bi, 0, 0, imageSize, imageSize, null);
//画正方形
ng2d.setStroke(new BasicStroke(lineSize));
ng2d.drawRect(0, 0, imageSize, imageSize);
ng2d.dispose();
bi = nbi;
Graphics2D g2d = bi.createGraphics();
g2d.setPaint(Color.RED);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
FontRenderContext context = g2d.getFontRenderContext();
//Font f = new Font(font.getFamily(), Font.BOLD, font.getSize());//默认读取JDK 下的font字体
File file = new File("config/font/simsun.ttf");
System.out.println("已读取字体文件");
Font f = Font.createFont(Font.TRUETYPE_FONT, file);
f = f.deriveFont(Font.BOLD, font.getSize());
g2d.setFont(f);
Rectangle2D rectangle = f.getStringBounds(font.getText().substring(0, 1), context);
float marginH = (float) (Math.abs(rectangle.getCenterY()) * 2 + marginW) + fixH;
g2d.drawString(font.getText().substring(2, 3), marginW, marginH);
int oldW = marginW;
marginW += Math.abs(rectangle.getCenterX()) * 2 + (font.getSpace() == null ? INIT_BEGIN : font.getSpace());
g2d.drawString(font.getText().substring(0, 1), marginW, marginH);
marginH += Math.abs(rectangle.getHeight());
g2d.drawString(font.getText().substring(3, 4), oldW, marginH);
g2d.drawString(font.getText().substring(1, 2), marginW, marginH);
return bi;
}
public Integer getSize() {
return size;
}
public void setSize(Integer size) {
this.size = size;
}
public Color getColor() {
return color;
}
public void setColor(Color color) {
this.color = color;
}
public SealFont getMainFont() {
return mainFont;
}
public void setMainFont(SealFont mainFont) {
this.mainFont = mainFont;
}
public SealFont getViceFont() {
return viceFont;
}
public void setViceFont(SealFont viceFont) {
this.viceFont = viceFont;
}
public SealFont getTitleFont() {
return titleFont;
}
public void setTitleFont(SealFont titleFont) {
this.titleFont = titleFont;
}
public SealFont getCenterFont() {
return centerFont;
}
public void setCenterFont(SealFont centerFont) {
this.centerFont = centerFont;
}
public SealCircle getBorderCircle() {
return borderCircle;
}
public void setBorderCircle(SealCircle borderCircle) {
this.borderCircle = borderCircle;
}
public SealCircle getBorderInnerCircle() {
return borderInnerCircle;
}
public void setBorderInnerCircle(SealCircle borderInnerCircle) {
this.borderInnerCircle = borderInnerCircle;
}
public SealCircle getInnerCircle() {
return innerCircle;
}
public void setInnerCircle(SealCircle innerCircle) {
this.innerCircle = innerCircle;
}
public Integer getBorderSquare() {
return borderSquare;
}
public void setBorderSquare(Integer borderSquare) {
this.borderSquare = borderSquare;
}
public String getStamp() {
return stamp;
}
public void setStamp(String stamp) {
this.stamp = stamp;
}
}SealCircle类：
java
package cn.com.yuanquanyun.bjca_scan;
import lombok.Builder;
import lombok.Getter;
@Getter
@Builder
public class SealCircle {
private Integer line;
private Integer width;
private Integer height;
public Integer getLine() {
return line;
}
public void setLine(Integer line) {
this.line = line;
}
public Integer getWidth() {
return width;
}
public void setWidth(Integer width) {
this.width = width;
}
public Integer getHeight() {
return height;
}
public void setHeight(Integer height) {
this.height = height;
}
}SealFont类：
java
package cn.com.yuanquanyun.bjca_scan;
import lombok.Builder;
import lombok.Getter;
@Getter
@Builder
public class SealFont {
private String text;
private String family;
private Integer size;
private Boolean bold;
private Double space;
private Integer margin;
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public void setFamily(String family) {
this.family = family;
}
public Integer getSize() {
return size;
}
public void setSize(Integer size) {
this.size = size;
}
public void setBold(Boolean bold) {
this.bold = bold;
}
public Double getSpace() {
return space;
}
public void setSpace(Double space) {
this.space = space;
}
public Integer getMargin() {
return margin;
}
public void setMargin(Integer margin) {
this.margin = margin;
}
public String getFamily() {
return family == null ? "宋体" : family;
}
public boolean getBold() {
return bold == null ? true : bold;
}
public SealFont append(String text) {
this.text += text;
return this;
}
}和印章生成相关的主要是以上这三个类。
测试类
java
public static void myTestCompanySeal() throws Exception {
String mainText = "北京某某科技有限公司";
String titleText = "合同专用章";
String viceText = "0192834567";
String keZhang = "公章刻章字体";//它会根据字体名称 去 jre下的font里去找这个字体。没有的话，会用默认字体。可以灵活控制Font的字体。上方的 Seal类中，采用的是读取本地的字体文件。而不是去jre 下的font里去找。两种方式都可以。
String songTi = "宋体";//同上
// 使用工具生成印章图片
try {
Seal.SealBuilder builder = Seal.builder();
builder.size(432);
builder.borderCircle(SealCircle.builder().line(10).width(210).height(210).build());
if (mainText != null) {
// 根据主文字长度，设置字体大小及边距
int length = mainText.length();
int size = 70;
double space = 50;
if (length > 0 && length <= 8) {
space = 70;
} else if (length == 9) {
space = 60;
} else if (length == 10) {
space = 55;
} else if (length == 11) {
space = 50;
} else if (length == 12) {
space = 45;
} else if (length == 13) {
space = 40;
} else if (length == 14) {
space = 40;
} else if (length == 15) {
space = 37;
} else if (length == 16) {
size = 65;
space = 35;
} else if (length == 17) {
size = 65;
space = 35;
} else if (length == 18) {
size = 63;
space = 33;
} else if (length == 19) {
size = 61;
space = 31;
} else if (length == 20) {
size = 60;
space = 30;
} else if (length == 21) {
size = 58;
space = 29;
} else if (length == 22) {
size = 56;
space = 28;
} else if (length == 23) {
size = 54;
space = 27;
} else if (length == 24) {
size = 54;
space = 27;
} else if (length == 25) {
size = 52;
space = 26;
} else {
size = 60 - (length - 20) * 2;
space = 30 - (length - 20) * 0.5;
}
builder.mainFont(SealFont.builder().text(mainText).family(keZhang).size(size).space(space).margin(10).build());
}
//
builder.centerFont(SealFont.builder().family(songTi).text("★").size(140).build());
//
if (titleText != null) {
builder.titleFont(SealFont.builder().family(keZhang).text(titleText).size(50).space(0.0).margin(100).build());
}
// 副文字 数字编号
if (viceText != null) {
builder.viceFont(SealFont.builder().family(songTi).text(viceText).size(30).space(20.0).margin(-10).build());
}
//
Seal build = builder.build();
byte[] draw = build.draw("png");
FileUtil.writeBytes(draw, "C:\\Users\\Administrator\\Desktop\\seal.jpg");
} catch (Exception e) {
throw new CustomException("生成印章失败");
}
}
public static void main(String[] args) throws Exception {
// myTestCompanySeal();//生成企业圆章
// String legalName="王大拿";//三个字
String legalName="王大拿印";//四个字
String imgFmt = "png";
String fontType = "宋体";
makeLegalSeal(legalName,imgFmt,fontType);//生成个人私章
}效果：如下
测试私人印章类：
java
private static byte[] makeLegalSeal(String legalName,String imgFmt,String fontType) throws Exception {
// 加载刻章字体
// String keZhang = "公章刻章字体";//这里的名字是字体名字，可以通过双击STXINGKA.ttf文件可以看到第一行的 字体名称: 公章刻章字体 华文行楷
String keZhang = fontType;//这里的名字是字体名字，可以通过双击STXINGKA.ttf文件可以看到第一行的 字体名称: 公章刻章字体 华文行楷 "Lucida Bright"
byte[] draw =Seal.builder()
.size(300)
.borderSquare(16)
.mainFont(SealFont.builder().text(legalName).family(keZhang).size(120).build())
.build()
.draw(imgFmt);
FileUtil.writeBytes(draw, "C:\\Users\\Administrator\\Desktop\\privateSeal.jpg");
return draw;
}
绘制方章
SquareSeal类：
java
package cn.com.yuanquanyun.utils.seal;
import cn.hutool.core.io.IoUtil;
import lombok.Builder;
import lombok.Getter;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.font.FontRenderContext;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
@Builder
@Getter
public class SquareSeal {
// 起始位置
private static final int INIT_BEGIN = 5;
// 尺寸
private Integer size;
// 颜色
private Color color;
// 主字
private SealFont mainFont;
// 副字
private SealFont viceFont;
// 抬头
private SealFont titleFont;
// 中心字
private SealFont centerFont;
// 边线圆
private SealCircle borderCircle;
// 内边线圆
private SealCircle borderInnerCircle;
// 内线圆
private SealCircle innerCircle;
// 边线框
private Integer borderSquare;
// 加字
private String stamp;
/**
* 画公章
*/
public byte[] draw() throws Exception {
if (borderSquare != null) {
return draw2(); // 画私章
}
//1.画布
BufferedImage bi = new BufferedImage(size, size, BufferedImage.TYPE_4BYTE_ABGR);
//2.画笔
Graphics2D g2d = bi.createGraphics();
//2.1抗锯齿设置
//文本不抗锯齿，否则圆中心的文字会被拉长
RenderingHints hints = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
//其他图形抗锯齿
hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHints(hints);
//2.2设置背景透明度
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 0));
//2.3填充矩形
g2d.fillRect(0, 0, size, size);
//2.4重设透明度，开始画图
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1));
//2.5设置画笔颜色
g2d.setPaint(color == null ? Color.RED : color);
//3.画边线圆
if (borderCircle != null) {
drawCircle(g2d, borderCircle, INIT_BEGIN, INIT_BEGIN);
} else {
throw new Exception("BorderCircle can not null！");
}
int borderCircleWidth = borderCircle.getWidth();
int borderCircleHeight = borderCircle.getHeight();
//4.画内边线圆
if (borderInnerCircle != null) {
int x = INIT_BEGIN + borderCircleWidth - borderInnerCircle.getWidth();
int y = INIT_BEGIN + borderCircleHeight - borderInnerCircle.getHeight();
drawCircle(g2d, borderInnerCircle, x, y);
}
//5.画内环线圆
if (innerCircle != null) {
int x = INIT_BEGIN + borderCircleWidth - innerCircle.getWidth();
int y = INIT_BEGIN + borderCircleHeight - innerCircle.getHeight();
drawCircle(g2d, innerCircle, x, y);
}
//6.画弧形主文字
if (borderCircleHeight != borderCircleWidth) {
drawArcFont4Oval(g2d, borderCircle, mainFont, true);
} else {
drawArcFont4Circle(g2d, borderCircleHeight, mainFont, true);
}
//7.画弧形副文字
if (borderCircleHeight != borderCircleWidth) {
drawArcFont4Oval(g2d, borderCircle, viceFont, false);
} else {
drawArcFont4Circle(g2d, borderCircleHeight, viceFont, false);
}
//8.画中心字
drawFont(g2d, (borderCircleWidth + INIT_BEGIN) * 2, (borderCircleHeight + INIT_BEGIN) * 2, centerFont);
//9.画抬头文字
drawFont(g2d, (borderCircleWidth + INIT_BEGIN) * 2, (borderCircleHeight + INIT_BEGIN) * 2, titleFont);
g2d.dispose();
//
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
boolean png = ImageIO.write(bi, "PNG", outputStream);
byte[] imgBytes = outputStream.toByteArray();
outputStream.flush();
outputStream.close();
return imgBytes;
}
public void draw(String pngPath) throws Exception {
byte[] imgBytes = draw();
FileOutputStream fileOutputStream = new FileOutputStream(new File(pngPath));
fileOutputStream.write(imgBytes);
IoUtil.close(fileOutputStream);
}
/**
* 绘制圆弧形文字
*/
private static void drawArcFont4Circle(Graphics2D g2d, int circleRadius, SealFont font, boolean isTop) {
if (font == null) {
return;
}
//1.字体长度
int textLen = font.getText().length();
//2.字体大小，默认根据字体长度动态设定
int size = font.getSize() == null ? (55 - textLen * 2) : font.getSize();
//3.字体样式
int style = font.getBold() ? Font.BOLD : Font.PLAIN;
//4.构造字体
Font f = new Font(font.getFamily(), style, size);
FontRenderContext context = g2d.getFontRenderContext();
Rectangle2D rectangle = f.getStringBounds(font.getText(), context);
//5.文字之间间距，默认动态调整
double space;
if (font.getSpace() != null) {
space = font.getSpace();
} else {
if (textLen == 1) {
space = 0;
} else {
space = rectangle.getWidth() / (textLen - 1) * 0.9;
}
}
//6.距离外圈距离
int margin = font.getMargin() == null ? INIT_BEGIN : font.getMargin();
//7.写字
double newRadius = circleRadius + rectangle.getY() - margin;
double radianPerInterval = 2 * Math.asin(space / (2 * newRadius));
double fix = 0.04;
if (isTop) {
fix = 0.18;
}
double firstAngle;
if (!isTop) {
if (textLen % 2 == 1) {
firstAngle = Math.PI + Math.PI / 2 - (textLen - 1) * radianPerInterval / 2.0 - fix;
} else {
firstAngle = Math.PI + Math.PI / 2 - ((textLen / 2.0 - 0.5) * radianPerInterval) - fix;
}
} else {
if (textLen % 2 == 1) {
firstAngle = (textLen - 1) * radianPerInterval / 2.0 + Math.PI / 2 + fix;
} else {
firstAngle = (textLen / 2.0 - 0.5) * radianPerInterval + Math.PI / 2 + fix;
}
}
for (int i = 0; i < textLen; i++) {
double theta;
double thetaX;
double thetaY;
if (!isTop) {
theta = firstAngle + i * radianPerInterval;
thetaX = newRadius * Math.sin(Math.PI / 2 - theta);
thetaY = newRadius * Math.cos(theta - Math.PI / 2);
} else {
theta = firstAngle - i * radianPerInterval;
thetaX = newRadius * Math.sin(Math.PI / 2 - theta);
thetaY = newRadius * Math.cos(theta - Math.PI / 2);
}
AffineTransform transform;
if (!isTop) {
transform = AffineTransform.getRotateInstance(Math.PI + Math.PI / 2 - theta);
} else {
transform = AffineTransform.getRotateInstance(Math.PI / 2 - theta + Math.toRadians(8));
}
Font f2 = f.deriveFont(transform);
g2d.setFont(f2);
g2d.drawString(font.getText().substring(i, i + 1), (float) (circleRadius + thetaX + INIT_BEGIN), (float) (circleRadius - thetaY + INIT_BEGIN));
}
}
/**
* 绘制椭圆弧形文字
*/
private static void drawArcFont4Oval(Graphics2D g2d, SealCircle sealCircle, SealFont font, boolean isTop) {
if (font == null) {
return;
}
float radiusX = sealCircle.getWidth();
float radiusY = sealCircle.getHeight();
float radiusWidth = radiusX + sealCircle.getLine();
float radiusHeight = radiusY + sealCircle.getLine();
//1.字体长度
int textLen = font.getText().length();
//2.字体大小，默认根据字体长度动态设定
int size = font.getSize() == null ? 25 + (10 - textLen) / 2 : font.getSize();
//3.字体样式
int style = font.getBold() ? Font.BOLD : Font.PLAIN;
//4.构造字体
Font f = new Font(font.getFamily(), style, size);
//5.总的角跨度
double totalArcAng = font.getSpace() * textLen;
//6.从边线向中心的移动因子
float minRat = 0.90f;
double startAngle = isTop ? -90f - totalArcAng / 2f : 90f - totalArcAng / 2f;
double step = 0.5;
int alCount = (int) Math.ceil(totalArcAng / step) + 1;
double[] angleArr = new double[alCount];
double[] arcLenArr = new double[alCount];
int num = 0;
double accArcLen = 0.0;
angleArr[num] = startAngle;
arcLenArr[num] = accArcLen;
num++;
double angR = startAngle * Math.PI / 180.0;
double lastX = radiusX * Math.cos(angR) + radiusWidth;
double lastY = radiusY * Math.sin(angR) + radiusHeight;
for (double i = startAngle + step; num < alCount; i += step) {
angR = i * Math.PI / 180.0;
double x = radiusX * Math.cos(angR) + radiusWidth, y = radiusY * Math.sin(angR) + radiusHeight;
accArcLen += Math.sqrt((lastX - x) * (lastX - x) + (lastY - y) * (lastY - y));
angleArr[num] = i;
arcLenArr[num] = accArcLen;
lastX = x;
lastY = y;
num++;
}
double arcPer = accArcLen / textLen;
for (int i = 0; i < textLen; i++) {
double arcL = i * arcPer + arcPer / 2.0;
double ang = 0.0;
for (int p = 0; p < arcLenArr.length - 1; p++) {
if (arcLenArr[p] <= arcL && arcL <= arcLenArr[p + 1]) {
ang = (arcL >= ((arcLenArr[p] + arcLenArr[p + 1]) / 2.0)) ? angleArr[p + 1] : angleArr[p];
break;
}
}
angR = (ang * Math.PI / 180f);
Float x = radiusX * (float) Math.cos(angR) + radiusWidth;
Float y = radiusY * (float) Math.sin(angR) + radiusHeight;
double qxang = Math.atan2(radiusY * Math.cos(angR), -radiusX * Math.sin(angR));
double fxang = qxang + Math.PI / 2.0;
int subIndex = isTop ? i : textLen - 1 - i;
String c = font.getText().substring(subIndex, subIndex + 1);
//获取文字高宽
FontMetrics fm = sun.font.FontDesignMetrics.getMetrics(f);
int w = fm.stringWidth(c), h = fm.getHeight();
if (isTop) {
x += h * minRat * (float) Math.cos(fxang);
y += h * minRat * (float) Math.sin(fxang);
x += -w / 2f * (float) Math.cos(qxang);
y += -w / 2f * (float) Math.sin(qxang);
} else {
x += (h * minRat) * (float) Math.cos(fxang);
y += (h * minRat) * (float) Math.sin(fxang);
x += w / 2f * (float) Math.cos(qxang);
y += w / 2f * (float) Math.sin(qxang);
}
// 旋转
AffineTransform affineTransform = new AffineTransform();
affineTransform.scale(0.8, 1);
if (isTop)
affineTransform.rotate(Math.toRadians((fxang * 180.0 / Math.PI - 90)), 0, 0);
else
affineTransform.rotate(Math.toRadians((fxang * 180.0 / Math.PI + 180 - 90)), 0, 0);
Font f2 = f.deriveFont(affineTransform);
g2d.setFont(f2);
g2d.drawString(c, x.intValue() + INIT_BEGIN, y.intValue() + INIT_BEGIN);
}
}
/**
* 画文字
*/
private static void drawFont(Graphics2D g2d, int circleWidth, int circleHeight, SealFont font) {
if (font == null) {
return;
}
//1.字体长度
int textLen = font.getText().length();
//2.字体大小，默认根据字体长度动态设定
int size = 18;
if (font.getSize() != null){
size = font.getSize();
}else {
if (textLen > 13){
size = 18 - (textLen - 13) < 12 ? 12 : 18 - (textLen - 13);
}
}
//3.字体样式
int style = font.getBold() ? Font.BOLD : Font.PLAIN;
//4.构造字体
Font f = new Font(font.getFamily(), style, size);
g2d.setFont(f);
FontRenderContext context = g2d.getFontRenderContext();
String[] fontTexts = font.getText().split("\n");
if (fontTexts.length > 1) {//当文字是多行时的处理方式
int y = 0;
for (String fontText : fontTexts) {
y += Math.abs(f.getStringBounds(fontText, context).getHeight());
}
//5.设置上边距
float margin = INIT_BEGIN*5 + (float) (circleHeight / 2 - y / 2);
// System.out.println("1.margin==="+margin);
for (String fontText : fontTexts) {
Rectangle2D rectangle2D = f.getStringBounds(fontText, context);
g2d.drawString(fontText, (float) (circleWidth / 2 - rectangle2D.getCenterX()), margin);
margin += Math.abs(rectangle2D.getHeight());
// System.out.println("2.margin==="+margin);
}
// System.out.println("3.margin==="+margin);
} else {//当文字是单行时的处理方式
Rectangle2D rectangle2D = f.getStringBounds(font.getText(), context);
//5.设置上边距，默认在中心
float margin = font.getMargin() == null ?
(float) (circleHeight / 2 - rectangle2D.getCenterY()) :
(float) (circleHeight / 2 - rectangle2D.getCenterY()) + (float) font.getMargin();
g2d.drawString(font.getText(), (float) (circleWidth / 2 - rectangle2D.getCenterX()), margin);
}
}
/**
* 画圆
*/
private static void drawCircle(Graphics2D g2d, SealCircle circle, int x, int y) {
if (circle == null) {
return;
}
//1.圆线条粗细默认是圆直径的1/35
int lineSize = circle.getLine() == null ? circle.getHeight() * 2 / (35) : circle.getLine();
//2.画圆
g2d.setStroke(new BasicStroke(lineSize));
g2d.drawOval(x, y, circle.getWidth() * 2, circle.getHeight() * 2);
}
/**
* 画矩形
*/
private static void drawRectangle(Graphics2D g2d, SealCircle circle, int x, int y) {
if (circle == null) {
return;
}
//1.圆线条粗细默认是圆直径的1/35
int lineSize = circle.getLine() == null ? circle.getHeight() * 2 / (35) : circle.getLine();
//2.画矩形
g2d.setStroke(new BasicStroke(lineSize));
g2d.drawRect(x, y, 289, circle.getHeight() * 1);
}
/**
* 画私章
*/
public byte[] draw2() throws Exception {
//1.画布
BufferedImage bi = new BufferedImage(size, 106, BufferedImage.TYPE_4BYTE_ABGR);
//2.画笔
Graphics2D g2d = bi.createGraphics();
//2.1抗锯齿设置
//文本不抗锯齿，否则圆中心的文字会被拉长
RenderingHints hints = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
//其他图形抗锯齿
hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHints(hints);
//2.2设置背景透明度
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 0));
//2.3填充矩形
g2d.fillRect(0, 0, size, size);
//2.4重设透明度，开始画图
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1));
//2.5设置画笔颜色
g2d.setPaint(color == null ? Color.RED : color);
//3.画边线圆
if (borderCircle != null) {
drawRectangle(g2d, borderCircle, INIT_BEGIN, INIT_BEGIN);
} else {
throw new Exception("BorderCircle can not null！");
}
//4.画上行文字
drawFont(g2d, INIT_BEGIN * 60, INIT_BEGIN * 5, mainFont);
//5.画横向文字
drawFont(g2d, INIT_BEGIN * 60, INIT_BEGIN * 20, viceFont);
//5.画下行文字
drawFont(g2d, INIT_BEGIN * 60, INIT_BEGIN * 5, titleFont);
g2d.dispose();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
boolean png = ImageIO.write(bi, "PNG", outputStream);
byte[] imgBytes = outputStream.toByteArray();
outputStream.flush();
outputStream.close();
return imgBytes;
}
/**
* 画三字
*/
private static BufferedImage drawThreeFont(BufferedImage bi, Graphics2D g2d, SealFont font, int lineSize, int imageSize, int fixH, int fixW, boolean isWithYin) {
fixH -= 9;
int marginW = fixW + lineSize;
//设置字体
Font f = new Font(font.getFamily(), Font.BOLD, font.getSize());
g2d.setFont(f);
FontRenderContext context = g2d.getFontRenderContext();
Rectangle2D rectangle = f.getStringBounds(font.getText().substring(0, 1), context);
float marginH = (float) (Math.abs(rectangle.getCenterY()) * 2 + marginW) + fixH;
int oldW = marginW;
if (isWithYin) {
g2d.drawString(font.getText().substring(2, 3), marginW, marginH);
marginW += rectangle.getCenterX() * 2 + (font.getSpace() == null ? INIT_BEGIN : font.getSpace());
} else {
marginW += rectangle.getCenterX() * 2 + (font.getSpace() == null ? INIT_BEGIN : font.getSpace());
g2d.drawString(font.getText().substring(0, 1), marginW, marginH);
}
//拉伸
BufferedImage nbi = new BufferedImage(imageSize, imageSize, bi.getType());
Graphics2D ng2d = nbi.createGraphics();
ng2d.setPaint(Color.RED);
ng2d.drawImage(bi, 0, 0, imageSize, imageSize, null);
//画正方形
ng2d.setStroke(new BasicStroke(lineSize));
ng2d.drawRect(0, 0, imageSize, imageSize);
ng2d.dispose();
bi = nbi;
g2d = bi.createGraphics();
g2d.setPaint(Color.RED);
g2d.setFont(f);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
if (isWithYin) {
g2d.drawString(font.getText().substring(0, 1), marginW, marginH += fixH);
rectangle = f.getStringBounds(font.getText(), context);
marginH += Math.abs(rectangle.getHeight());
g2d.drawString(font.getText().substring(1), marginW, marginH);
} else {
g2d.drawString(font.getText().substring(1, 2), oldW, marginH += fixH);
rectangle = f.getStringBounds(font.getText(), context);
marginH += Math.abs(rectangle.getHeight());
g2d.drawString(font.getText().substring(2, 3), oldW, marginH);
}
return bi;
}
/**
* 画四字
*/
private static BufferedImage drawFourFont(BufferedImage bi, SealFont font, int lineSize, int imageSize, int fixH, int fixW) {
int marginW = fixW + lineSize;
//拉伸
BufferedImage nbi = new BufferedImage(imageSize, imageSize, bi.getType());
Graphics2D ng2d = nbi.createGraphics();
ng2d.setPaint(Color.RED);
ng2d.drawImage(bi, 0, 0, imageSize, imageSize, null);
//画正方形
ng2d.setStroke(new BasicStroke(lineSize));
ng2d.drawRect(0, 0, imageSize, imageSize);
ng2d.dispose();
bi = nbi;
Graphics2D g2d = bi.createGraphics();
g2d.setPaint(Color.RED);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
FontRenderContext context = g2d.getFontRenderContext();
Font f = new Font(font.getFamily(), Font.BOLD, font.getSize());
g2d.setFont(f);
Rectangle2D rectangle = f.getStringBounds(font.getText().substring(0, 1), context);
float marginH = (float) (Math.abs(rectangle.getCenterY()) * 2 + marginW) + fixH;
g2d.drawString(font.getText().substring(2, 3), marginW, marginH);
int oldW = marginW;
marginW += Math.abs(rectangle.getCenterX()) * 2 + (font.getSpace() == null ? INIT_BEGIN : font.getSpace());
g2d.drawString(font.getText().substring(0, 1), marginW, marginH);
marginH += Math.abs(rectangle.getHeight());
g2d.drawString(font.getText().substring(3, 4), oldW, marginH);
g2d.drawString(font.getText().substring(1, 2), marginW, marginH);
return bi;
}
}测试类
java
/**
* 创建方形企业章
*
* @param companyName 企业名称：xxx企业
* @param title 抬头：合同专用章
* @param code 编号：1234567890123
* @return
* @throws Exception
*/
public static byte[] makeCompanySquareSeal (String companyName, String title, String code) throws Exception {
byte[] img = null;
if(companyName.length() <= 19){
img = SquareSeal.builder()
.size(300)
.borderCircle(SealCircle.builder().line(4).width(95).height(95).build())
.borderSquare(10)
.mainFont(SealFont.builder().text(companyName).space(12.0).margin(10).build())
.viceFont(SealFont.builder().text(title).size(16).space(15.0).margin(0).build())
.titleFont(SealFont.builder().text(code).size(12).space(9.0).margin(64).build())
.color(Color.RED)
.build()
.draw();
}else {//支持印章字体换行操作
int len = companyName.length();
companyName = companyName.substring(0,19)+"\n"+companyName.substring(19,len);
img = SquareSeal.builder()
.size(300)
.borderCircle(SealCircle.builder().line(4).width(95).height(95).build())
.borderSquare(10)
.mainFont(SealFont.builder().text(companyName).space(12.0).margin(10).build())
.viceFont(SealFont.builder().text(title).size(16).space(15.0).margin(10).build())//margin 越大viceFont位置越往下，margin 为0时，位于中间位置
.titleFont(SealFont.builder().text(code).size(12).space(9.0).margin(75).build()) //margin 越大titleFont位置越往下
.color(Color.RED)
.build()
.draw();
}
return img;
}
public static void main(String[] args) throws Exception {
byte[] bytes = makeCompanySquareSeal("中国某某某股份有限公司某某某某分公司", "招标专用章", "1234567890123");
System.out.println("data:image/png;base64,"+ Base64.encode(bytes));
}
主文字超过19个字，就换行。
