实例如下：
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package writeimg;
import javax.imageio.imageio;
import java.awt.color;
import java.awt.font;
import java.awt.graphics2d;
import java.awt.image.bufferedimage;
import java.io.file;
import java.io.ioexception;
import java.net.url;
public class pic {
private font font = new font("华文彩云", font.plain, 40);// 添加字体的属性设置
private graphics2d g = null;
private int fontsize = 0;
private int x = 0;
private int y = 0;
/**
* 导入本地图片到缓冲区
*/
public bufferedimage loadimagelocal(string imgname) {
try {
return imageio.read(new file(imgname));
} catch (ioexception e) {
system.out.println(e.getmessage());
}
return null;
}
/**
* 导入网络图片到缓冲区
*/
public bufferedimage loadimageurl(string imgname) {
try {
url url = new url(imgname);
return imageio.read(url);
} catch (ioexception e) {
system.out.println(e.getmessage());
}
return null;
}
/**
* 生成新图片到本地
*/
public void writeimagelocal(string newimage, bufferedimage img) {
if (newimage != null && img != null) {
try {
file outputfile = new file(newimage);
imageio.write(img, "jpg", outputfile);
} catch (ioexception e) {
system.out.println(e.getmessage());
}
}
}
/**
* 设定文字的字体等
*/
public void setfont(string fontstyle, int fontsize) {
this.fontsize = fontsize;
this.font = new font(fontstyle, font.plain, fontsize);
}
/**
* 修改图片,返回修改后的图片缓冲区（只输出一行文本）
*/
public bufferedimage modifyimage(bufferedimage img, object content, int x,
int y) {
try {
int w = img.getwidth();
int h = img.getheight();
g = img.creategraphics();
g.setbackground(color.white);
g.setcolor(color.orange);//设置字体颜色
if (this.font != null)
g.setfont(this.font);
// 验证输出位置的纵坐标和横坐标
if (x >= h || y >= w) {
this.x = h - this.fontsize + 2;
this.y = w;
} else {
this.x = x;
this.y = y;
}
if (content != null) {
g.drawstring(content.tostring(), this.x, this.y);
}
g.dispose();
} catch (exception e) {
system.out.println(e.getmessage());
}
return img;
}
/**
* 修改图片,返回修改后的图片缓冲区（输出多个文本段） xory：true表示将内容在一行中输出；false表示将内容多行输出
*/
public bufferedimage modifyimage(bufferedimage img, object[] contentarr,
int x, int y, boolean xory) {
try {
int w = img.getwidth();
int h = img.getheight();
g = img.creategraphics();
g.setbackground(color.white);
g.setcolor(color.red);
if (this.font != null)
g.setfont(this.font);
// 验证输出位置的纵坐标和横坐标
if (x >= h || y >= w) {
this.x = h - this.fontsize + 2;
this.y = w;
} else {
this.x = x;
this.y = y;
}
if (contentarr != null) {
int arrlen = contentarr.length;
if (xory) {
for (int i = 0; i < arrlen; i++) {
g.drawstring(contentarr[i].tostring(), this.x, this.y);
this.x += contentarr[i].tostring().length()
* this.fontsize / 2 + 5;// 重新计算文本输出位置
}
} else {
for (int i = 0; i < arrlen; i++) {
g.drawstring(contentarr[i].tostring(), this.x, this.y);
this.y += this.fontsize + 2;// 重新计算文本输出位置
}
}
}
g.dispose();
} catch (exception e) {
system.out.println(e.getmessage());
}
return img;
}
/**
* 修改图片,返回修改后的图片缓冲区（只输出一行文本）
*
* 时间:2007-10-8
*
* @param img
* @return
*/
public bufferedimage modifyimageye(bufferedimage img) {
try {
int w = img.getwidth();
int h = img.getheight();
g = img.creategraphics();
g.setbackground(color.white);
g.setcolor(color.blue);//设置字体颜色
if (this.font != null)
g.setfont(this.font);
g.drawstring("reyo.cn", w - 85, h - 5);
g.dispose();
} catch (exception e) {
system.out.println(e.getmessage());
}
return img;
}
public bufferedimage modifyimagetogeter(bufferedimage b, bufferedimage d) {
try {
int w = b.getwidth();
int h = b.getheight();
g = d.creategraphics();
g.drawimage(b, 100, 10, w, h, null);
g.dispose();
} catch (exception e) {
system.out.println(e.getmessage());
}
return d;
}
public static void main(string[] args) {
pic tt = new pic();
bufferedimage d = tt.loadimagelocal("d:\\11.jpg");
// bufferedimage b = tt
// .loadimagelocal("e:\\文件(word,excel,pdf,ppt.txt)\\zte-logo.png");
tt.writeimagelocal("d:\\cc.jpg",tt.modifyimage(d,"西昌苹果",90,90)
//往图片上写文件
);
//tt.writeimagelocal("d:\\cc.jpg", tt.modifyimagetogeter(b, d));
//将多张图片合在一起
system.out.println("success");
}
}
以上就是小编为大家带来的java 在图片上写字,两个图片合并的实现方法全部内容了，希望大家多多支持移动技术网~
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