依赖
cn.hutool
hutool-all
5.5.7
生成海报图片
/**
* 拼团海报
*/
@AppLog(value = "拼团海报", type = 1)
@AuthCheck
@GetMapping("/poster")
@ApiOperation(value = "拼团海报",notes = "拼团海报")
public ApiResult poster(String id) throws IOException {
YxUser yxUser = LocalUser.getUser();
String apiUrl = systemConfigService.getData(SystemConfigConstants.API_URL);
if(StrUtil.isEmpty(apiUrl)){
throw new YshopException("未配置api地址");
}
if(StringUtils.isBlank(id)){
throw new YshopException("参数 id 不能为空");
}
String fileDir = path+"qrcode"+ File.separator;
YxStorePinkMaster byId = yxStorePinkMasterService.getById(id);
if(byId == null){
throw new YshopException("拼团不存在或已结束");
}
YxStoreCombination byId1 = yxStoreCombinationService.getById(byId.getPinkProductId());
if(byId1 == null){
throw new YshopException("拼团产品不存在");
}
YxStorePinkMember yxStorePinkMember = null;
List list = yxStorePinkMemberService.lambdaQuery().eq(YxStorePinkMember::getPId, byId.getId()).list();
if(!list.isEmpty()){
yxStorePinkMember = list.get(0);
}
String QRCode = StrUtil.format("pink_{}_{}_QRCode.jpg",byId.getPinkProductId(),yxUser.getUid());
String poster = StrUtil.format("pink_{}_{}_poster.jpg",byId.getPinkProductId(),yxUser.getUid());
String qrcodeUrl="";
String posterUrl="";
YxSystemAttachment info = systemAttachmentService.getInfo(QRCode);
if (info != null){
qrcodeUrl = apiUrl + "/api/file/" + info.getSattDir();
}else{
QrCodeUtil.generate(StrUtil.format("{}/transferPage?type=joinPink&masterId={}",apiUrl,byId.getId()), 180, 180,
FileUtil.file(fileDir+QRCode));
qrcodeUrl = apiUrl + "/api/file/qrcode/"+QRCode;
YxSystemAttachment attachment0 = YxSystemAttachment.builder()
.name(QRCode)
.attSize(String.valueOf(FileUtil.size(new File(fileDir+QRCode))))
.attDir(fileDir+QRCode)
.attType("image/jpeg")
.sattDir("qrcode/"+QRCode)
.build();
systemAttachmentService.save(attachment0);
}
YxSystemAttachment info1 = systemAttachmentService.getInfo(poster);
if(info1 != null){
posterUrl = apiUrl + "/api/file/" + info1.getSattDir();
}else{
/**
* 开始创建图片
*/
BufferedImage img = new BufferedImage(1400, 1040, BufferedImage.TYPE_INT_RGB);
//开启画图
Graphics g = img.getGraphics();
InputStream stream = getClass().getClassLoader().getResourceAsStream("background.png");
ImageInputStream background = ImageIO.createImageInputStream(stream);
BufferedImage back = ImageIO.read(background);
g.drawImage(back.getScaledInstance(1400, 1040, Image.SCALE_DEFAULT), 0, 0, null); // 绘制缩小后的图
g.dispose();
//先将画好的海报写到本地
File file = new File(fileDir+poster);
try {
ImageIO.write(img, "jpg",file);
} catch (IOException e) {
e.printStackTrace();
}
Image image0 = ImageIO.read(new File(fileDir+poster) );
//商品图
Image image = ImageIO.read(new URL(byId1.getImage()));
Image scale = ImgUtil.scale(
image,
1350,
580
);
Image image1 = ImgUtil.pressImage(
image0,
scale, //水印图片
0, //x坐标修正值。 默认在中间，偏移量相对于中间偏移
-195, //y坐标修正值。 默认在中间，偏移量相对于中间偏移
1f
);
//头像
Image image2 = ImageIO.read(new URL(yxUser.getAvatar()));
Image scale4 = ImgUtil.scale(
image2,
160,
160
);
Image image3 = ImgUtil.pressImage(
image1,
scale4, //水印图片
-596, //x坐标修正值。 默认在中间，偏移量相对于中间偏移
220, //y坐标修正值。 默认在中间，偏移量相对于中间偏移
1f
);
//二维码
Image image5 = ImageIO.read(new URL(qrcodeUrl));
Image scale5 = ImgUtil.scale(
image5,
250,
250
);
Image image6 = ImgUtil.pressImage(
image3,
scale5, //水印图片
540, //x坐标修正值。 默认在中间，偏移量相对于中间偏移
350, //y坐标修正值。 默认在中间，偏移量相对于中间偏移
1f
);
//邀请语
Image image7 = ImgUtil.pressText(image6, yxUser.getNickname() + " " + "邀请您加入拼团:", Color.BLACK, new Font("黑体", Font.BOLD, 40), -200, 180, 1F);
//已支付人数
image7 = ImgUtil.pressText(image7, StrUtil.format("已支付人数:{}",byId.getPaidPeopleNumber()), Color.BLACK, new Font("黑体", Font.BOLD, 40), -350, 260, 1F);
//结束时间
image7 = ImgUtil.pressText(image7, StrUtil.format("结束时间:{}", DateUtil.format(byId.getFinishDate(), "yyyy-MM-dd HH:mm:ss")), Color.BLACK, new Font("黑体", Font.BOLD, 40), 200, 260, 1F);
//扫码提示
image7 = ImgUtil.pressText(image7, "扫描二维码加入拼团", Color.BLACK, new Font("黑体", Font.BOLD, 30), 505, 505, 1F);
if(yxStorePinkMember != null){
//原价
image7 = ImgUtil.pressText(image7, StrUtil.format("原价:{}",yxStorePinkMember.getBeforeDiscountAmount()), Color.BLACK, new Font("黑体", Font.BOLD, 40), -365, 340, 1F);
//当前阶梯团优惠价
image7 = ImgUtil.pressText(image7, StrUtil.format("当前人数优惠价:{}", yxStorePinkMember.getAfterDiscountAmount()), Color.BLACK, new Font("黑体", Font.BOLD, 40), 100, 340, 1F);
}
ImgUtil.write(image7,file);
YxSystemAttachment attachment0 = YxSystemAttachment.builder()
.name(poster)
.attSize(String.valueOf(FileUtil.size(new File(fileDir+poster))))
.attDir(fileDir+poster)
.attType("image/jpeg")
.sattDir("qrcode/"+poster)
.build();
systemAttachmentService.save(attachment0);
posterUrl = apiUrl + "/api/file/qrcode/"+poster;
}
return ApiResult.ok(posterUrl);
}
