dshclm
3 weeks ago
parent
e51ee4d9b7
commit
b9c213ddf4
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package com.ruoyi.web.controller.pdf.controller;
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import com.ruoyi.web.controller.pdf.service.PdfService;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.MediaType;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.ByteArrayOutputStream;
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import java.util.HashMap;
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import java.util.Map;
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@RestController
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@RequestMapping("/api/pdf")
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public class PdfController {
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private final PdfService pdfService;
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public PdfController(PdfService pdfService) {
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this.pdfService = pdfService;
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}
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@PostMapping(value = "/fill", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
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public ResponseEntity<byte[]> fillPdfForm(
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@RequestParam(required = false) String name,
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@RequestParam(required = false) String sex,
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@RequestParam(required = false) String nationa,
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@RequestParam(required = false) String formerName,
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@RequestParam(required = false) String nationality,
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@RequestParam(required = false) String maritalStatus,
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@RequestParam(required = false) String political,
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@RequestParam(required = false) String phone,
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@RequestParam(required = false) String cerno,
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@RequestParam(required = false) String address,
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@RequestParam(required = false) String registeredAuthority,
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@RequestParam(required = false) String permanentAddress,
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@RequestParam(required = false) String residentBureau,
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@RequestParam(required = false) String positionCapacity,
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@RequestParam(required = false) String smPost,
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@RequestParam(required = false) String smGrade,
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@RequestParam(required = false) MultipartFile photo) throws Exception {
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// 构建表单数据
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Map<String, String> formData = new HashMap<>();
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if (name != null) formData.put("姓名", name);
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if (sex != null) formData.put("性别", sex);
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if (nationa != null) formData.put("国籍", nationa);
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if (formerName != null) formData.put("曾用名", formerName);
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if (nationality != null) formData.put("民族", nationality);
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if (maritalStatus != null) formData.put("婚姻状况", maritalStatus);
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if (political != null) formData.put("政治面貌", political);
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if (phone != null) formData.put("联系方式", phone);
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if (cerno != null) formData.put("身份证号", cerno);
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if (address != null) formData.put("户籍地址", address);
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if (registeredAuthority != null) formData.put("户籍地公安机关", registeredAuthority);
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if (permanentAddress != null) formData.put("常住地址", permanentAddress);
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if (residentBureau != null) formData.put("常住地公安机关", residentBureau);
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if (positionCapacity != null) formData.put("单位及职务职称", positionCapacity);
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if (smPost != null) formData.put("已（拟）任涉密岗位", smPost);
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if (smGrade != null) formData.put("涉密等级", smGrade);
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// 构建图片数据
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Map<String, MultipartFile> imageData = new HashMap<>();
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if (photo != null && !photo.isEmpty()) {
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imageData.put("照片", photo);
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}
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// 生成PDF
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ByteArrayOutputStream outputStream = pdfService.fillForm(formData, imageData);
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// 返回PDF文件
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HttpHeaders headers = new HttpHeaders();
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headers.setContentType(MediaType.APPLICATION_PDF);
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headers.setContentDispositionFormData("attachment", "output.pdf");
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return ResponseEntity.ok()
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.headers(headers)
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.body(outputStream.toByteArray());
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}
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}
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@ -0,0 +1,13 @@
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package com.ruoyi.web.controller.pdf.dto;
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import lombok.Data;
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import org.springframework.web.multipart.MultipartFile;
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import java.util.HashMap;
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import java.util.Map;
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@Data
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public class PdfFormRequest {
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private Map<String, String> formData = new HashMap<>();
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private Map<String, MultipartFile> imageData = new HashMap<>();
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}
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@ -0,0 +1,177 @@
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package com.ruoyi.web.controller.pdf.service;
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import org.apache.pdfbox.pdmodel.PDDocument;
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import org.apache.pdfbox.pdmodel.PDPage;
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import org.apache.pdfbox.pdmodel.PDPageContentStream;
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import org.apache.pdfbox.pdmodel.font.PDType0Font;
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import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
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import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
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import org.apache.pdfbox.pdmodel.interactive.form.PDField;
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import org.apache.pdfbox.pdmodel.interactive.form.PDTextField;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.util.Map;
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@Service
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public class PdfService {
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// 定义最大和最小字体大小，用于动态调整
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private static final float MAX_FONT_SIZE = 14;
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private static final float MIN_FONT_SIZE = 8;
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// 需要特殊处理的字段列表
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private static final String[] AUTO_WRAP_FIELDS = {
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"常住地址", "户籍地址", "户籍地公安机关", "常住地公安机关"
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};
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public ByteArrayOutputStream fillForm(Map<String, String> formData,
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Map<String, MultipartFile> imageData) throws IOException {
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// 禁用系统字体扫描，只使用自定义字体
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System.setProperty("org.apache.pdfbox.rendering.UseSystemFonts", "false");
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// 提高字体解析警告的日志级别
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System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
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System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.fontbox", "ERROR");
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PDDocument document = null;
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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try {
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// 加载模板PDF
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ClassLoader classLoader = getClass().getClassLoader();
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File templateFile = new File(classLoader.getResource("static/file/pdf/smryscb.pdf").getFile());
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document = PDDocument.load(templateFile);
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PDAcroForm acroForm = document.getDocumentCatalog().getAcroForm();
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if (acroForm == null) {
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throw new IOException("PDF不包含表单域");
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}
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// 加载中文字体
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PDType0Font font = PDType0Font.load(document,
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new File(classLoader.getResource("static/file/pdf/STSONG.TTF").getFile()));
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// 设置需要更新表单外观
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acroForm.setNeedAppearances(true);
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// 填充文本表单
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for (Map.Entry<String, String> entry : formData.entrySet()) {
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String fieldName = entry.getKey();
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String fieldValue = entry.getValue();
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PDField field = acroForm.getField(fieldName);
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if (field != null) {
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// 设置表单域为不可编辑
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field.setReadOnly(true);
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// 设置表单域不高亮显示
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// for (PDAnnotationWidget widget : field.getWidgets()) {
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// widget.setHighlightMode(PDAnnotationWidget.HIGHLIGHT_MODE_NONE);
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// }
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if (fieldValue != null &&!fieldValue.isEmpty()) {
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field.setValue(fieldValue);
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if (field instanceof PDTextField) {
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PDTextField textField = (PDTextField) field;
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if (isAutoWrapField(fieldName)) {
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textField.setMultiline(true);
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float fontSize = calculateFontSize(fieldValue);
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textField.setDefaultAppearance("/" + font.getName() + " " + fontSize + " Tf 0 g");
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} else {
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textField.setDefaultAppearance("/" + font.getName() + " 12 Tf 0 g");
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}
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}
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} else {
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// 无内容时，也设置默认外观
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if (field instanceof PDTextField) {
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((PDTextField) field).setDefaultAppearance("/" + font.getName() + " 12 Tf 0 g");
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}
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}
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}
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}
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// 插入图片
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insertImages(document, acroForm, imageData);
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// 保存到输出流
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document.save(outputStream);
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} catch (Exception e) {
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e.printStackTrace(); // 打印异常信息，方便调试
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throw new IOException("处理PDF时出错", e);
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} finally {
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if (document != null) {
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document.close();
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}
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}
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return outputStream;
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}
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private void insertImages(PDDocument document, PDAcroForm acroForm,
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Map<String, MultipartFile> imageData) throws IOException {
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for (Map.Entry<String, MultipartFile> entry : imageData.entrySet()) {
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String fieldName = entry.getKey();
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MultipartFile file = entry.getValue();
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PDField refField = acroForm.getField(fieldName);
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// 设置表单域为不可编辑
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if (refField != null) {
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refField.setReadOnly(true);
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}
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if (refField != null &&!file.isEmpty()) {
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// 假设图片插入到第一页，你可以根据实际情况修改
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PDPage page = document.getPage(0);
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// 手动指定图片插入位置
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float x = 435; // 可以根据实际情况调整2
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float y = 620; // 可以根据实际情况调整
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PDImageXObject image = null;
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PDPageContentStream contentStream = null;
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try {
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// 从上传的文件创建图片对象
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image = PDImageXObject.createFromByteArray(document, file.getBytes(), file.getOriginalFilename());
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// 计算图片尺寸（按比例缩放）
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float imageWidth = image.getWidth();
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float imageHeight = image.getHeight();
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float maxWidth = 100;
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float maxHeight = 100;
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float scale = Math.min(maxWidth / imageWidth, maxHeight / imageHeight);
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imageWidth *= scale;
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imageHeight *= scale;
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// 在指定位置绘制图片
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contentStream = new PDPageContentStream(
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document, page, PDPageContentStream.AppendMode.APPEND, true);
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contentStream.drawImage(image, x, y, imageWidth, imageHeight);
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} finally {
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if (contentStream != null) {
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contentStream.close();
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}
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}
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}
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}
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}
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// 判断是否是需要自动换行的字段
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private boolean isAutoWrapField(String fieldName) {
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for (String autoWrapField : AUTO_WRAP_FIELDS) {
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if (autoWrapField.equals(fieldName)) {
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return true;
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}
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}
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return false;
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}
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// 计算适应字段的字体大小（仅用于需要特殊处理的字段）
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private float calculateFontSize(String fieldValue) {
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int textLength = fieldValue.length();
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float fontSize = 10;
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if (textLength > 30) {
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fontSize = Math.max(MIN_FONT_SIZE, 10 - ((textLength - 30) / 5));
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}
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return fontSize;
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}
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}
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