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lijiazhuo
2026-01-08 11:11:28 +08:00
parent 8ad406b5ee
commit e750e92a77
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src/main/java/com/example/sso/controller/TuiZuController.java Normal file
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package com.example.sso.controller;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.example.sso.dao.Photo;
import com.example.sso.dao.ThumbnailCompressor;
import com.example.sso.test.O;
import com.example.sso.util.APIUtils;
import com.example.sso.util.TimeUtil;
import com.example.sso.util.TimeUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.scheduling.annotation.Async;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import java.io.IOException;
@Async
@RestController
@Slf4j
public class TuiZuController {
@PostMapping("/tz")
public void yuezu(@RequestBody JSONObject data) throws IOException {
log.info("退租数据" + data.toJSONString());
JSONObject object = data.getJSONObject("data");
String id = object.getString("_id");
String car = object.getString("car");
String sj = object.getString("sj");
String timss = TimeUtil.timss(sj);
Integer gl = object.getInteger("gl");
Integer dl = object.getInteger("dl");
JSONArray mx = object.getJSONArray("mx");
JSONArray yz = object.getJSONArray("yz");
JSONArray cj = object.getJSONArray("cj");
String ww = object.getString("ww");
String wws = "姓名/联营方公司: " + ww;
String cars = "车牌号码:" + car;
String gls = "车辆公里数（KM）: " + gl.toString();
String dls = "车辆剩余电量（KM）: " + dl.toString();
String sjs = "验车时间:" + timss;
Photo.startPDF("/home/java/dpapp8090/pdf/" + id + ".pdf");
Photo.TextAlignment("交车定损单");
Photo.appendTextSection("\n");
Photo.appendTextSection("驾驶员信息");
Photo.appendTextSection("\n");
Photo.appendTextSection(wws);
Photo.appendTextSection("\n");
Photo.appendTextSection("\n");
Photo.appendTextSection("\n");
Photo.appendTextSection("车辆信息");
Photo.appendTextSection("\n");
Photo.appendTextSection(cars);
Photo.appendTextSection(gls);
Photo.appendTextSection(dls);
Photo.appendTextSection(sjs);
Photo.appendTextSection("\n");
Photo.appendTextSection("\n");
Photo.appendTextSection("\n");
Photo.appendTextSection("车辆整体照片");
for (Object yzs : yz) {
JSONObject jsonObject = (JSONObject) yzs;
String url = jsonObject.getString("url");
String hkfile = APIUtils.hkfile(url);
ThumbnailCompressor.compressWithThumbnailator(hkfile, hkfile);
Photo.appendImageSection(hkfile);
}
Photo.appendTextSection("车架号照片");
for (Object yzs : cj) {
JSONObject jsonObject = (JSONObject) yzs;
String url = jsonObject.getString("url");
String hkfile = APIUtils.hkfile(url);
ThumbnailCompressor.compressWithThumbnailator(hkfile, hkfile);
Photo.appendImageSection(hkfile);
}
Photo.appendTextSection("\n");
Photo.appendTextSection("\n");
Photo.appendTextSection("\n");
for (Object o : mx) {
JSONObject test = (JSONObject) o;
String xiang = test.getString("xiang");
String xiangs = "验车受损项:" + xiang;
Photo.appendTextSection(xiangs);
JSONArray tp = test.getJSONArray("tp");
if (tp != null && tp.size() != 0) {
for (Object o1 : tp) {
JSONObject tests = (JSONObject) o1;
String url = tests.getString("url");
String hkfile = APIUtils.hkfile(url);
ThumbnailCompressor.compressWithThumbnailator(hkfile, hkfile);
Photo.appendTextSection("车损详情图片:");
Photo.appendTextSection("\n");
Photo.appendImageSection(hkfile);
}
}
Photo.appendTextSection("\n");
}
Photo.closePDF();
}
}

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src/main/java/com/example/sso/dao/Photo.java Normal file
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package com.example.sso.dao;
import com.itextpdf.io.image.ImageData;
import com.itextpdf.io.image.ImageDataFactory;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.properties.TextAlignment;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
public class Photo {
private static PdfDocument pdfDoc = null;
private static Document document = null;
private static String currentPdfPath = null;
/**
* 开始创建PDF
*/
public static void startPDF(String pdfPath) throws IOException {
if (pdfDoc != null) {
closePDF();
}
/* currentPdfPath = pdfPath;
PdfWriter writer = new PdfWriter(pdfPath);
pdfDoc = new PdfDocument(writer);
// document = new Document(pdfDoc);
// 创建文档时设置0边距
document = new Document(pdfDoc, PageSize.A4, false);
// 设置页边距为0
document.setMargins(0, 0, 0, 0);
// 或者使用具体的值
// document.setMargins(0f, 0f, 0f, 0f);
// 移除默认的页眉页脚
pdfDoc.getDefaultPageSize();*/
currentPdfPath = pdfPath;
PdfWriter writer = new PdfWriter(pdfPath);
pdfDoc = new PdfDocument(writer);
// A4纸的标准宽度是595点（约210mm），高度自定义
// PageSize.A4.getWidth() 获取A4宽度
PageSize customPageSize = new PageSize(PageSize.A4.getWidth(), 842*20);
document = new Document(pdfDoc, customPageSize, false);
document.setMargins(0, 0, 0, 0);
System.out.println("开始创建PDF: " + pdfPath);
}
/**
* 添加图片章节
*/
public static void appendImageSection(String imagePath) throws IOException {
if (document == null) {
throw new IllegalStateException("请先调用 startPDF() 方法");
}
// 添加章节标题
// document.add(new Paragraph("图片部分")
// .setFontSize(20)
// .setBold()
// .setMarginTop(20));
// 添加图片
if (imagePath != null && new File(imagePath).exists()) {
ImageData imageData = ImageDataFactory.create(imagePath);
Image image = new Image(imageData);
// image.setAutoScale(true);
image.setHorizontalAlignment(com.itextpdf.layout.properties.HorizontalAlignment.CENTER);
image.setMarginTop(5);
image.setMarginBottom(5);
image.setHeight(200);
image.setWidth(200);
document.add(image);
// document.add(new Paragraph("图片说明")
// .setFontSize(10)
// .setItalic()
// .setTextAlignment(com.itextpdf.layout.properties.TextAlignment.CENTER));
}
System.out.println("已添加图片章节");
}
/**
* 添加文本章节
*/
public static void appendTextSection(String text) throws IOException {
if (document == null) {
throw new IllegalStateException("请先调用 startPDF() 方法");
}
PdfFont chineseFont = PdfFontFactory.createFont("STSong-Light", "UniGB-UCS2-H");
// 添加章节标题
document.add(new Paragraph(text)
.setFont(chineseFont)
.setFontSize(20)
.setBold()
.setMarginTop(20));
/* // 添加文本
if (text != null && !text.trim().isEmpty()) {
String[] paragraphs = text.split("\n");
for (String para : paragraphs) {
document.add(new Paragraph(para)
.setFontSize(12)
.setMarginBottom(10));
}
}*/
System.out.println("已添加文本章节");
}
public static void TextAlignment(String text) throws IOException {
if (document == null) {
throw new IllegalStateException("请先调用 startPDF() 方法");
}
PdfFont chineseFont = PdfFontFactory.createFont("STSong-Light", "UniGB-UCS2-H");
// 创建段落并设置居中对齐
Paragraph paragraph = new Paragraph(text)
.setFont(chineseFont)
.setFontSize(20)
.setBold()
.setMarginTop(20)
.setTextAlignment(TextAlignment.CENTER); // 添加这行实现居中
document.add(paragraph);
System.out.println("已添加文本章节");
}
public static void appendTextSections(String text) throws IOException {
if (document == null) {
throw new IllegalStateException("请先调用 startPDF() 方法");
}
PdfFont chineseFont = PdfFontFactory.createFont("STSong-Light", "UniGB-UCS2-H");
// 添加章节标题
// 设置绝对位置在页面底部
Paragraph paragraph = new Paragraph(text);
float pageHeight = PageSize.A4.getHeight(); // 842点
float bottomMargin = 50; // 距离底部50点
float leftMargin = 400; // 左边距
paragraph.setFixedPosition(leftMargin, bottomMargin, PageSize.A4.getWidth() - 40).setFont(chineseFont);
document.add(paragraph);
/* // 添加文本
if (text != null && !text.trim().isEmpty()) {
String[] paragraphs = text.split("\n");
for (String para : paragraphs) {
document.add(new Paragraph(para)
.setFontSize(12)
.setMarginBottom(10));
}
}*/
System.out.println("已添加文本章节");
}
/**
* 添加分页符
*/
public static void addPageBreak() {
if (document != null) {
document.add(new com.itextpdf.layout.element.AreaBreak());
System.out.println("已添加分页符");
}
}
/**
* 关闭并保存PDF
*/
public static void closePDF() {
if (document != null) {
document.close();
document = null;
}
if (pdfDoc != null) {
pdfDoc.close();
pdfDoc = null;
}
System.out.println("PDF已保存: " + currentPdfPath);
currentPdfPath = null;
}
/**
* 快速使用示例
*/
public static void createPDFWithMultipleSections(String pdfPath) throws IOException {
startPDF(pdfPath);
// 添加各种内容
appendTextSection("这是文档的第一部分\n包含一些介绍性的文字");
appendImageSection("image1.jpg");
appendTextSection("这是图片1的描述文字");
appendImageSection("image2.png");
appendTextSection("这是图片2的描述文字");
// 关闭并保存
closePDF();
}
public static void createSimpleChinesePDF() throws IOException {
// 1. 创建PDF
PdfWriter writer = new PdfWriter("D:\\下载模板\\a.pdf");
PdfDocument pdfDoc = new PdfDocument(writer);
Document document = new Document(pdfDoc);
// 2. 加载中文字体（必须要有font-asian依赖）
PdfFont chineseFont = PdfFontFactory.createFont("STSong-Light", "UniGB-UCS2-H");
// 3. 添加中文内容
Paragraph title = new Paragraph("中文标题")
.setFont(chineseFont)
.setFontSize(20)
.setBold();
document.add(title);
Paragraph content = new Paragraph("这是中文内容，可以正常显示。")
.setFont(chineseFont)
.setFontSize(12);
document.add(content);
// 4. 关闭文档
document.close();
System.out.println("PDF创建完成");
}
public static void main(String[] args) {
try {
createSimpleChinesePDF();
} catch (IOException e) {
System.out.println("错误: " + e.getMessage());
System.out.println("请确保添加了 font-asian 依赖");
}
}
}

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src/main/java/com/example/sso/dao/ThumbnailCompressor.java Normal file
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package com.example.sso.dao;
import net.coobird.thumbnailator.Thumbnails;
import net.coobird.thumbnailator.geometry.Positions;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
public class ThumbnailCompressor {
private static final long MAX_SIZE = 300 * 1024; // 500KB
/**
* 使用Thumbnailator压缩图片
*/
public static long compressWithThumbnailator(String inputPath, String outputPath) throws IOException {
File inputFile = new File(inputPath);
long fileSize = inputFile.length();
System.out.println("原始大小: " + formatFileSize(fileSize));
// 如果小于500KB，直接复制
if (fileSize <= MAX_SIZE) {
Files.copy(inputFile.toPath(), Paths.get(outputPath));
return fileSize;
}
// 获取图片尺寸
BufferedImage originalImage = ImageIO.read(inputFile);
int width = originalImage.getWidth();
int height = originalImage.getHeight();
// 计算缩放比例
float scale = 1.0f;
if (width > 1920 || height > 1080) {
float widthRatio = 1920f / width;
float heightRatio = 1080f / height;
scale = Math.min(widthRatio, heightRatio);
}
// 逐步压缩
float quality = 0.9f;
long compressedSize = Long.MAX_VALUE;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
while (quality > 0.1f && compressedSize > MAX_SIZE) {
baos.reset();
Thumbnails.of(inputFile)
.scale(scale)
.outputQuality(quality)
.outputFormat("jpg")
.toOutputStream(baos);
compressedSize = baos.size();
System.out.println("质量: " + quality + ", 大小: " + formatFileSize(compressedSize));
quality -= 0.1f;
}
// 保存文件
try (FileOutputStream fos = new FileOutputStream(outputPath)) {
fos.write(baos.toByteArray());
}
return compressedSize;
}
/**
* 批量压缩
*/
public static void batchCompress(String inputDir, String outputDir, long maxSize) throws IOException {
File dir = new File(inputDir);
File[] imageFiles = dir.listFiles((d, name) ->
name.toLowerCase().endsWith(".jpg") ||
name.toLowerCase().endsWith(".jpeg") ||
name.toLowerCase().endsWith(".png") ||
name.toLowerCase().endsWith(".bmp")
);
if (imageFiles == null) return;
for (File imageFile : imageFiles) {
String outputPath = outputDir + File.separator + "compressed_" + imageFile.getName();
long compressedSize = compressWithThumbnailator(imageFile.getPath(), outputPath);
System.out.println(imageFile.getName() +
" 压缩后: " + formatFileSize(compressedSize));
}
}
private static String formatFileSize(long size) {
if (size < 1024) return size + " B";
if (size < 1024 * 1024) return String.format("%.2f KB", size / 1024.0);
if (size < 1024 * 1024 * 1024) return String.format("%.2f MB", size / (1024.0 * 1024.0));
return String.format("%.2f GB", size / (1024.0 * 1024.0 * 1024.0));
}
public static void main(String[] args) {
try {
// 压缩单个图片
long size = compressWithThumbnailator("D:\\下载模板\\微信图片_20251224111834_4_27.jpg", "D:\\下载模板\\微信图片_20251224111834_4_27.jpg");
System.out.println("最终大小: " + formatFileSize(size));
// 批量压缩
// batchCompress("input_images", "output_images", 500 * 1024);
} catch (IOException e) {
e.printStackTrace();
}
}
}