package com.nq.service.impl;
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import com.nq.common.ServerResponse;
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import com.nq.pojo.User;
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import com.nq.service.IUserAgreementService;
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import com.nq.utils.PropertiesUtil;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.*;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import org.springframework.web.multipart.MultipartFile;
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import com.itextpdf.text.*;
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import com.itextpdf.text.pdf.*;
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import com.itextpdf.text.pdf.BaseFont;
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import com.itextpdf.text.pdf.parser.PdfTextExtractor;
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import com.itextpdf.text.pdf.parser.SimpleTextExtractionStrategy;
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@Service("iUserAgreementService")
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public class UserAgreementServiceImpl implements IUserAgreementService {
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private static final Logger log = LoggerFactory.getLogger(UserAgreementServiceImpl.class);
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@Autowired
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private com.nq.service.IUserService iUserService;
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@Override
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// 在generateAgreementPdf方法中修改返回逻辑
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public ServerResponse generateAgreementPdf(HttpServletRequest request) {
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try {
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User user = iUserService.getCurrentUser(request);
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user = (User) iUserService.findByUserId(user.getId()).getData();
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if (user == null) {
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return ServerResponse.createByErrorMsg("用户未登录");
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}
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if (StringUtils.isBlank(user.getRealName()) || StringUtils.isBlank(user.getIdCard()) || StringUtils.isBlank(user.getRegAddress())) {
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return ServerResponse.createByErrorMsg("用户信息不完整，请先完成实名认证");
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}
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// 检查是否已生成PDF
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String pdfDir = PropertiesUtil.getProperty("loca.pdf.dir");
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File dir = new File(pdfDir);
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if (!dir.exists()) {
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dir.mkdirs();
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}
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String pdfFileName = "agreement_" + user.getId() + ".pdf";
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File pdfFile = new File(dir, pdfFileName);
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// 构建完整的PDF访问URL
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String pdfUrl = PropertiesUtil.getProperty("pdf.server.http.prefix") + "/agreement_" + user.getId() + ".pdf";
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// 如果PDF已存在，删除后重新生成，确保数据是最新的
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if (pdfFile.exists()) {
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log.info("PDF文件已存在，删除后重新生成: {}", pdfFile.getAbsolutePath());
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boolean deleted = pdfFile.delete();
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if (!deleted) {
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log.warn("删除旧PDF文件失败: {}", pdfFile.getAbsolutePath());
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}
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}
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// 从资源中读取PDF模板文件
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File pdfTemplate = getTemplateFile("中原证券股票分成协议（电子正式版）.pdf");
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if (pdfTemplate == null || !pdfTemplate.exists()) {
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return ServerResponse.createByErrorMsg("PDF模板文件不存在");
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}
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// 从PDF模板生成新的PDF，替换占位符
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generatePdfFromTemplate(pdfTemplate, pdfFile, user);
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return ServerResponse.createBySuccess(pdfUrl);
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} catch (Exception e) {
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log.error("生成用户协议PDF失败", e);
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return ServerResponse.createByErrorMsg("生成PDF失败：" + e.getMessage());
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}
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}
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/**
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* 从PDF模板生成新的PDF，替换占位符
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*/
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private void generatePdfFromTemplate(File templatePdf, File outputPdf, User user) throws Exception {
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log.info("开始生成PDF，模板路径: {}, 输出路径: {}, 用户: {}",
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templatePdf.getAbsolutePath(), outputPdf.getAbsolutePath(), user.getId());
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PdfReader reader = null;
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PdfStamper stamper = null;
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FileOutputStream fos = null;
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try {
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reader = new PdfReader(new FileInputStream(templatePdf));
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fos = new FileOutputStream(outputPdf);
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stamper = new PdfStamper(reader, fos);
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// 设置中文字体
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BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
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Font font = new Font(baseFont, 12, Font.NORMAL);
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Font boldFont = new Font(baseFont, 12, Font.BOLD);
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
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String currentDate = sdf.format(new Date());
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// 准备替换的数据
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String realName = user.getRealName() != null ? user.getRealName() : "";
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String idCard = user.getIdCard() != null ? user.getIdCard() : "";
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String address = user.getRegAddress() != null ? user.getRegAddress() : "";
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log.info("PDF生成数据 - 姓名: {}, 身份证: {}, 地址: {}", realName, idCard, address);
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// 获取PDF页数
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int pageCount = reader.getNumberOfPages();
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log.info("PDF模板页数: {}", pageCount);
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// 在每一页上查找并替换占位符
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for (int pageNum = 1; pageNum <= pageCount; pageNum++) {
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PdfContentByte canvas = stamper.getOverContent(pageNum);
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Rectangle pageSize = reader.getPageSize(pageNum);
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// 提取PDF文本查找占位符位置
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String pageText = PdfTextExtractor.getTextFromPage(reader, pageNum, new SimpleTextExtractionStrategy());
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// 在PDF上查找并替换占位符
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replacePlaceholdersInPdf(canvas, pageSize, pageText, realName, idCard, address, currentDate, font, pageNum);
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log.info("已处理PDF第{}页", pageNum);
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}
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stamper.close();
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stamper = null;
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reader.close();
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reader = null;
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fos.close();
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fos = null;
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// 验证生成的文件
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if (outputPdf.exists()) {
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long fileSize = outputPdf.length();
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log.info("PDF生成完成，文件路径: {}, 文件大小: {} 字节", outputPdf.getAbsolutePath(), fileSize);
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if (fileSize == 0) {
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throw new Exception("生成的PDF文件大小为0");
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}
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} else {
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throw new Exception("PDF文件生成失败，文件不存在");
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}
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} catch (Exception e) {
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log.error("生成PDF失败", e);
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throw e;
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} finally {
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if (stamper != null) {
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try {
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stamper.close();
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} catch (Exception e) {
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log.error("关闭stamper失败", e);
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}
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}
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if (reader != null) {
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try {
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reader.close();
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} catch (Exception e) {
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log.error("关闭reader失败", e);
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}
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}
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if (fos != null) {
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try {
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fos.close();
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} catch (Exception e) {
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log.error("关闭输出流失败", e);
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}
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}
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}
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}
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/**
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* 在PDF上替换占位符（使用文本覆盖方式）
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*/
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private void replacePlaceholdersInPdf(PdfContentByte canvas, Rectangle pageSize, String pageText,
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String realName, String idCard, String address,
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String currentDate, Font font,int pageNum) throws Exception {
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// 查找占位符在文本中的位置，然后估算在PDF中的坐标
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// 由于PDF坐标系统复杂，这里使用固定位置替换
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// 实际使用时需要根据PDF模板的具体布局调整坐标
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float margin = 50;
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float lineHeight = 14;
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float startY = pageSize.getHeight() - 194;
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if(pageNum == 1){
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replacePlaceholder(canvas, "", realName, margin + 75, startY, 0, font);
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startY -= lineHeight;
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replacePlaceholder(canvas, "", address, margin + 75, startY-2, 0, font);
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startY -= lineHeight;
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replacePlaceholder(canvas, "", idCard, margin + 95, startY-2, 0, font);
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}
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if(pageNum == 3){
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replacePlaceholder(canvas, "", currentDate, margin + 60, startY+32, 0, font);
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replacePlaceholder(canvas, "", currentDate, margin + 60, startY, 0, font);
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}
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}
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/**
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* 替换单个占位符
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*/
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private void replacePlaceholder(PdfContentByte canvas, String placeholder, String value,
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float x, float y, float width, Font font) {
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// 添加白色背景覆盖占位符区域
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canvas.saveState();
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canvas.setColorFill(BaseColor.WHITE);
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canvas.rectangle(x - 5, y - 15, width, 20);
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canvas.fill();
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canvas.restoreState();
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// 添加新文本
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ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT,
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new Phrase(value, font), x, y, 0);
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}
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@Override
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public void viewAgreementPdf(HttpServletRequest request, HttpServletResponse response) {
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FileInputStream fis = null;
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OutputStream os = null;
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try {
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User user = iUserService.getCurrentUser(request);
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if (user == null) {
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response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "用户未登录");
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return;
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}
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String pdfDir = PropertiesUtil.getProperty("loca.pdf.dir");
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String pdfFileName = "agreement_" + user.getId() + ".pdf";
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File pdfFile = new File(pdfDir, pdfFileName);
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log.info("查看PDF文件，路径: {}, 是否存在: {}, 文件大小: {}",
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pdfFile.getAbsolutePath(), pdfFile.exists(),
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pdfFile.exists() ? pdfFile.length() : 0);
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if (!pdfFile.exists()) {
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response.sendError(HttpServletResponse.SC_NOT_FOUND, "协议文件不存在，请先生成协议");
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return;
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}
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long fileLength = pdfFile.length();
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if (fileLength == 0) {
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log.error("PDF文件大小为0: {}", pdfFile.getAbsolutePath());
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "PDF文件为空");
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return;
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}
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// 验证PDF文件头
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FileInputStream checkFis = new FileInputStream(pdfFile);
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byte[] header = new byte[4];
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checkFis.read(header);
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checkFis.close();
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String headerStr = new String(header);
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if (!headerStr.startsWith("%PDF")) {
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log.error("文件不是有效的PDF格式，文件头: {}", headerStr);
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "PDF文件格式错误");
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return;
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}
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log.info("PDF文件头验证通过: {}", headerStr);
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response.setContentType("application/pdf");
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response.setHeader("Content-Disposition", "inline; filename=\"" +
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new String(pdfFileName.getBytes("UTF-8"), "ISO-8859-1") + "\"");
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response.setContentLengthLong(fileLength);
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response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
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response.setHeader("Pragma", "no-cache");
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response.setDateHeader("Expires", 0);
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fis = new FileInputStream(pdfFile);
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os = response.getOutputStream();
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byte[] buffer = new byte[8192];
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int bytesRead;
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long totalBytes = 0;
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while ((bytesRead = fis.read(buffer)) != -1) {
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os.write(buffer, 0, bytesRead);
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totalBytes += bytesRead;
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}
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log.info("PDF文件传输完成，总字节数: {}", totalBytes);
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os.flush();
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} catch (Exception e) {
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log.error("查看用户协议PDF失败", e);
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try {
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if (!response.isCommitted()) {
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "查看PDF失败: " + e.getMessage());
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}
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} catch (IOException ex) {
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log.error("发送错误响应失败", ex);
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}
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} finally {
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if (fis != null) {
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try {
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fis.close();
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} catch (IOException e) {
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log.error("关闭文件流失败", e);
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}
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}
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if (os != null) {
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try {
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os.close();
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} catch (IOException e) {
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log.error("关闭输出流失败", e);
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}
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}
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}
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}
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@Override
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public ServerResponse saveAgreementSignature(MultipartFile signatureFile, HttpServletRequest request) {
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try {
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User user = iUserService.getCurrentUser(request);
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if (user == null) {
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return ServerResponse.createByErrorMsg("用户未登录");
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}
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if (signatureFile == null || signatureFile.isEmpty()) {
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return ServerResponse.createByErrorMsg("签名图片不能为空");
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}
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// 保存签名图片到本地
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String signatureDir = PropertiesUtil.getProperty("loca.pdf.dir");
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File dir = new File(signatureDir);
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if (!dir.exists()) {
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dir.mkdirs();
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}
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String signatureFileName = "signature_" + user.getId() + ".png";
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File signatureFileLocal = new File(dir, signatureFileName);
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signatureFile.transferTo(signatureFileLocal);
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log.info("用户{}的签名图片已保存: {}", user.getId(), signatureFileLocal.getAbsolutePath());
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// 重新生成PDF并插入签名图片
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String pdfDir = PropertiesUtil.getProperty("loca.pdf.dir");
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String pdfFileName = "agreement_" + user.getId() + ".pdf";
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File pdfFile = new File(pdfDir, pdfFileName);
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if (pdfFile.exists()) {
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// 在PDF第三页插入签名图片
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addSignatureToPdf(pdfFile, signatureFileLocal, user);
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// 构建PDF访问地址
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String pdfUrl = PropertiesUtil.getProperty("pdf.server.http.prefix") + "/agreement_" + user.getId() + ".pdf";
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// 更新用户表的签合同标记（保存PDF地址）
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iUserService.updateSignedContract(user.getId(),pdfUrl);
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}
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return ServerResponse.createBySuccessMsg("签名保存成功");
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} catch (Exception e) {
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log.error("保存用户协议签名失败", e);
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return ServerResponse.createByErrorMsg("保存签名失败：" + e.getMessage());
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}
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}
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/**
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* 在PDF第三页插入签名图片
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*/
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private void addSignatureToPdf(File pdfFile, File signatureImage, User user) throws Exception {
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PdfReader reader = new PdfReader(new FileInputStream(pdfFile));
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File tempPdf = new File(pdfFile.getParent(), "temp_" + pdfFile.getName());
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PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(tempPdf));
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int pageCount = reader.getNumberOfPages();
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// 在第三页插入签名图片
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if (pageCount >= 3) {
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PdfContentByte canvas = stamper.getOverContent(3);
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Rectangle pageSize = reader.getPageSize(3);
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// 添加签名图片
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if (signatureImage.exists()) {
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Image image = Image.getInstance(signatureImage.getAbsolutePath());
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// 设置图片大小（根据实际需要调整）
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image.scaleToFit(100, 100);
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// 设置图片位置（使用与addHeaderImageToPdf相同的坐标）
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image.setAbsolutePosition(370, pageSize.getHeight() - 194);
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canvas.addImage(image);
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log.info("签名图片已插入到PDF第三页，位置: (370, {})", pageSize.getHeight() - 194);
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}
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}
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stamper.close();
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reader.close();
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// 替换原PDF文件
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if (tempPdf.exists()) {
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pdfFile.delete();
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tempPdf.renameTo(pdfFile);
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log.info("PDF文件已更新，签名图片已插入");
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}
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}
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@Override
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public ServerResponse generateAgreementContractPdf(HttpServletRequest request) {
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try {
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User user = iUserService.getCurrentUser(request);
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user = (User) iUserService.findByUserId(user.getId()).getData();
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if (user == null) {
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return ServerResponse.createByErrorMsg("用户未登录");
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}
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if (StringUtils.isBlank(user.getRealName()) || StringUtils.isBlank(user.getIdCard()) || StringUtils.isBlank(user.getRegAddress())) {
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return ServerResponse.createByErrorMsg("用户信息不完整，请先完成实名认证");
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}
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String pdfDir = PropertiesUtil.getProperty("loca.pdf.dir");
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File dir = new File(pdfDir);
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if (!dir.exists()) {
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dir.mkdirs();
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}
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String pdfFileName = "contract_" + user.getId() + ".pdf";
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File pdfFile = new File(dir, pdfFileName);
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String pdfUrl = PropertiesUtil.getProperty("pdf.server.http.prefix") + "/contract_" + user.getId() + ".pdf";
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if (pdfFile.exists()) {
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boolean deleted = pdfFile.delete();
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if (!deleted) {
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log.warn("删除旧PDF文件失败: {}", pdfFile.getAbsolutePath());
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}
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}
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// 从资源中读取PDF模板文件
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File pdfTemplate = getTemplateFile("中原证券商业核心信息保密协议.pdf");
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if (pdfTemplate == null || !pdfTemplate.exists()) {
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return ServerResponse.createByErrorMsg("PDF模板文件不存在");
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}
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generateContractPdfFromTemplate(pdfTemplate, pdfFile, user);
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return ServerResponse.createBySuccess(pdfUrl);
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} catch (Exception e) {
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log.error("生成用户合同PDF失败", e);
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return ServerResponse.createByErrorMsg("生成PDF失败：" + e.getMessage());
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}
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}
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@Override
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public void viewAgreementContractPdf(HttpServletRequest request, HttpServletResponse response) {
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FileInputStream fis = null;
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OutputStream os = null;
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try {
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User user = iUserService.getCurrentUser(request);
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if (user == null) {
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response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "用户未登录");
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return;
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}
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String pdfDir = PropertiesUtil.getProperty("loca.pdf.dir");
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String pdfFileName = "contract_" + user.getId() + ".pdf";
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File pdfFile = new File(pdfDir, pdfFileName);
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if (!pdfFile.exists()) {
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response.sendError(HttpServletResponse.SC_NOT_FOUND, "合同文件不存在，请先生成合同");
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return;
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}
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long fileLength = pdfFile.length();
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if (fileLength == 0) {
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log.error("PDF文件大小为0: {}", pdfFile.getAbsolutePath());
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "PDF文件为空");
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return;
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}
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FileInputStream checkFis = new FileInputStream(pdfFile);
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byte[] header = new byte[4];
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checkFis.read(header);
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checkFis.close();
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String headerStr = new String(header);
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if (!headerStr.startsWith("%PDF")) {
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log.error("文件不是有效的PDF格式，文件头: {}", headerStr);
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "PDF文件格式错误");
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return;
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}
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response.setContentType("application/pdf");
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response.setHeader("Content-Disposition", "inline; filename=\"" +
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new String(pdfFileName.getBytes("UTF-8"), "ISO-8859-1") + "\"");
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response.setContentLengthLong(fileLength);
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response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
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fis = new FileInputStream(pdfFile);
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os = response.getOutputStream();
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byte[] buffer = new byte[4096];
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int bytesRead;
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while ((bytesRead = fis.read(buffer)) != -1) {
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os.write(buffer, 0, bytesRead);
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}
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os.flush();
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} catch (Exception e) {
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log.error("查看用户合同PDF失败", e);
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try {
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response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "查看PDF失败: " + e.getMessage());
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} catch (IOException ex) {
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log.error("发送错误响应失败", ex);
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}
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} finally {
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if (fis != null) {
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try {
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fis.close();
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} catch (IOException e) {
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log.error("关闭文件流失败", e);
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}
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}
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if (os != null) {
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try {
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os.close();
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} catch (IOException e) {
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log.error("关闭输出流失败", e);
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}
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}
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}
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}
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@Override
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public ServerResponse saveAgreementContractSignature(MultipartFile signatureFile, HttpServletRequest request) {
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try {
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User user = iUserService.getCurrentUser(request);
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if (user == null) {
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return ServerResponse.createByErrorMsg("用户未登录");
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}
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if (signatureFile == null || signatureFile.isEmpty()) {
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return ServerResponse.createByErrorMsg("签名图片不能为空");
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}
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String signatureDir = PropertiesUtil.getProperty("loca.pdf.dir");
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File dir = new File(signatureDir);
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if (!dir.exists()) {
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dir.mkdirs();
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}
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String signatureFileName = "contract_signature_" + user.getId() + ".png";
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File signatureFileLocal = new File(dir, signatureFileName);
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signatureFile.transferTo(signatureFileLocal);
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log.info("用户{}的合同签名图片已保存: {}", user.getId(), signatureFileLocal.getAbsolutePath());
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String pdfDir = PropertiesUtil.getProperty("loca.pdf.dir");
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String pdfFileName = "contract_" + user.getId() + ".pdf";
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File pdfFile = new File(pdfDir, pdfFileName);
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if (pdfFile.exists()) {
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addSignatureToContractPdf(pdfFile, signatureFileLocal, user);
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String pdfUrl = PropertiesUtil.getProperty("pdf.server.http.prefix") + "/contract_" + user.getId() + ".pdf";
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iUserService.updateSignedAgreement(user.getId(), pdfUrl);
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}
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return ServerResponse.createBySuccessMsg("签名保存成功");
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} catch (Exception e) {
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log.error("保存用户合同签名失败", e);
|
return ServerResponse.createByErrorMsg("保存签名失败：" + e.getMessage());
|
}
|
}
|
|
private void generateContractPdfFromTemplate(File templatePdf, File outputPdf, User user) throws Exception {
|
PdfReader reader = new PdfReader(new FileInputStream(templatePdf));
|
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPdf));
|
|
BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
|
Font font = new Font(baseFont, 12, Font.NORMAL);
|
SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
|
String currentDate = sdf.format(new Date());
|
|
int pageCount = reader.getNumberOfPages();
|
|
for (int pageNum = 1; pageNum <= pageCount; pageNum++) {
|
PdfContentByte canvas = stamper.getOverContent(pageNum);
|
Rectangle pageSize = reader.getPageSize(pageNum);
|
|
replacePlaceholdersInContractPdf(canvas, pageSize, currentDate, font, pageNum);
|
}
|
|
stamper.close();
|
reader.close();
|
}
|
|
private void replacePlaceholdersInContractPdf(PdfContentByte canvas, Rectangle pageSize, String currentDate, Font font, int pageNum) throws Exception {
|
float margin = 50;
|
float startY = pageSize.getHeight() - 364;
|
if(pageNum == 2){
|
replacePlaceholder(canvas, "", currentDate, margin + 320, startY, 0, font);
|
}
|
}
|
|
private void addSignatureToContractPdf(File pdfFile, File signatureImage, User user) throws Exception {
|
PdfReader reader = new PdfReader(new FileInputStream(pdfFile));
|
File tempPdf = new File(pdfFile.getParent(), "temp_" + pdfFile.getName());
|
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(tempPdf));
|
|
int pageCount = reader.getNumberOfPages();
|
|
if (pageCount >= 2) {
|
PdfContentByte canvas = stamper.getOverContent(2);
|
Rectangle pageSize = reader.getPageSize(2);
|
|
if (signatureImage.exists()) {
|
Image image = Image.getInstance(signatureImage.getAbsolutePath());
|
image.scaleToFit(100, 100);
|
image.setAbsolutePosition(435, pageSize.getHeight() - 288);
|
canvas.addImage(image);
|
log.info("签名图片已插入到合同PDF第二页");
|
}
|
}
|
|
stamper.close();
|
reader.close();
|
|
if (tempPdf.exists()) {
|
pdfFile.delete();
|
tempPdf.renameTo(pdfFile);
|
log.info("合同PDF文件已更新，签名图片已插入");
|
}
|
}
|
|
/**
|
* 从固定目录获取模板文件
|
*/
|
private File getTemplateFile(String templateFileName) {
|
try {
|
String templateDir = PropertiesUtil.getProperty("pdf.template.dir");
|
if (StringUtils.isBlank(templateDir)) {
|
log.error("PDF模板目录配置不存在: pdf.template.dir");
|
return null;
|
}
|
|
File dir = new File(templateDir);
|
if (!dir.exists()) {
|
log.error("PDF模板目录不存在: {}", templateDir);
|
return null;
|
}
|
|
File templateFile = new File(dir, templateFileName);
|
if (!templateFile.exists()) {
|
log.error("PDF模板文件不存在: {}", templateFile.getAbsolutePath());
|
return null;
|
}
|
|
log.info("使用模板文件: {}", templateFile.getAbsolutePath());
|
return templateFile;
|
} catch (Exception e) {
|
log.error("获取模板文件失败: {}", templateFileName, e);
|
return null;
|
}
|
}
|
}
|
