第一步，下载jar包以及建对应的文件夹。注意pd4ml的jar要选择pro版本。然后建一个pd4fonts.properties
里面对应的字体。
SimSun = simsun.ttf
前面为变量名，后面要对应你下载好的字体。网上都有各种字体下载。相应步骤做完了，做完后的文件夹如图格式都有了！
注意要引入图片中对应的jar下面的三个jar包到项目中去。
以下为从文件读取到数据再作导出功能。
import java.awt.Insets;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.StringReader;
import .MalformedURLException;
import java.security.InvalidParameterException;
import org.zefer.pd4ml.PD4Constants;
import org.zefer.pd4ml.PD4ML;
public class Test {
protected int topValue = 10;
protected int leftValue = 20;
protected int rightValue = 10;
protected int bottomValue = 10;
protected int userSpaceWidth = 1300;
/**
* @param args
*/
public static void main(String[] args) {
try {
Test jt = new Test();
//此处填写你的html文件
String html = readFile("/Users/wangchen/Desktop/370fx2.html", "UTF-8");
//此处填写你下载的地方
jt.doConversion2(html, "/Users/wangchen/Desktop/370fx2.pdf");
} catch (Exception e) {
e.printStackTrace();
}
}
public void doConversion2(String htmlDocument, String outputPath)
throws InvalidParameterException, MalformedURLException,
IOException {
PD4ML pd4ml = new PD4ML();
pd4ml.enableDebugInfo();
pd4ml.setHtmlWidth(userSpaceWidth);
pd4ml.setPageSize(pd4ml.changePageOrientation(PD4Constants.A4));
pd4ml.setPageInsetsMM(new Insets(topValue, leftValue, bottomValue,
rightValue));
//此处的classPath注意一定要获取到你放fonts的文件夹。他需要获取到你下载的字体
String classPath = Test.class.getResource("/")+"fonts";
pd4ml.useTTF(classPath, true);
pd4ml.setDefaultTTFs("SimSun", "SimSun", "SimSun");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
pd4ml.render(new StringReader(htmlDocument), baos);
baos.close();
File output = new File(outputPath);
java.io.FileOutputStream fos = new java.io.FileOutputStream(output);
fos.write(baos.toByteArray());
fos.close();
}
private final static String readFile(String path, String encoding)
throws IOException {
File f = new File(path);
FileInputStream is = new FileInputStream(f);
BufferedInputStream bis = new BufferedInputStream(is);
ByteArrayOutputStream fos = new ByteArrayOutputStream();
byte buffer[] = new byte[2048];
int read;
do {
read = is.read(buffer, 0, buffer.length);
if (read > 0) {
fos.write(buffer, 0, read);
}
} while (read > -1);
fos.close();
bis.close();
is.close();
return fos.toString(encoding);
}
}
如上你就可以下载将html转为pdf了。任意文本也可以转为pdf，经测试，可用
附件如下：/s/1wSvBM6Kti4IpI9IlDaycew
以下为浏览器下载pdf的工具类。直接调用红色的方法即可。htmlDocument 为你要导出的数据，response为该次请求的响应体，fileName为下载的名字
package mon.utils;
import mons.io.output.ByteArrayOutputStream;
import mons.lang3.StringUtils;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.io.*;
import java.security.InvalidParameterException;
import org.zefer.pd4ml.PD4Constants;
import org.zefer.pd4ml.PD4ML;
/**
* @author caihong
* @time /1/28
*/
public class PDFUtil {
private static String PDF_TYPE="application/pdf";
private static String classpath=PDFUtil.class.getResource("/").getPath();
protected static int topValue = 10;
protected static int leftValue = 20;
protected static int rightValue = 10;
protected static int bottomValue = 10;
protected static int userSpaceWidth = 1300;
public static void pdf4htmlToPdf(String htmlDocument,HttpServletResponse response, String filename)throws InvalidParameterException,
IOException {
PD4ML pd4ml = new PD4ML();
pd4ml.enableDebugInfo();
pd4ml.setHtmlWidth(userSpaceWidth);
pd4ml.setPageSize(pd4ml.changePageOrientation(PD4Constants.A4));
pd4ml.setPageInsetsMM(new Insets(topValue, leftValue, bottomValue,rightValue));
pd4ml.useTTF(classpath+"fonts", true);
pd4ml.setDefaultTTFs("SimSun", "SimSun", "SimSun");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
pd4ml.render(new StringReader(htmlDocument), baos);
baos.close();
renderPdf(response,baos.toByteArray(),filename);
}
public static void renderPdf(HttpServletResponse response, final byte[] bytes, final String filename) {
initResponseHeader(response, PDF_TYPE);
setFileDownloadHeader(response, filename, ".pdf");
if (null != bytes) {
try {
response.getOutputStream().write(bytes);
response.getOutputStream().flush();
} catch (IOException e) {
throw new IllegalArgumentException(e);
}
}
}
/**
* 分析并设置contentType与headers.
*/
private static HttpServletResponse initResponseHeader(HttpServletResponse response, final String contentType, final String... headers) {
// 分析headers参数
String encoding = "utf-8";
boolean noCache = true;
for (String header : headers) {
String headerName = StringUtils.substringBefore(header, ":");
String headerValue = StringUtils.substringAfter(header, ":");
if (StringUtils.equalsIgnoreCase(headerName, "utf-8")) {
encoding = headerValue;
} else if (StringUtils.equalsIgnoreCase(headerName, "no-cache")) {
noCache = Boolean.parseBoolean(headerValue);
} else {
throw new IllegalArgumentException(headerName + "不是一个合法的header类型");
}
}
// 设置headers参数
String fullContentType = contentType + ";charset=" + encoding;
response.setContentType(fullContentType);
if (noCache) {
// Http 1.0 header
response.setDateHeader("Expires", 0);
response.addHeader("Pragma", "no-cache");
// Http 1.1 header
response.setHeader("Cache-Control", "no-cache");
}
return response;
}
/**
* 设置让浏览器弹出下载对话框的Header.
* @param
*/
public static void setFileDownloadHeader(HttpServletResponse response, String fileName, String fileType) {
try {
// 中文文件名支持
String encodedfileName = new String(fileName.getBytes("GBK"), "ISO8859-1");
response.setHeader("Content-Disposition", "attachment; filename=\"" + encodedfileName + fileType + "\"");
} catch (UnsupportedEncodingException e) {
}
}
private final static String readFile(String path, String encoding)
throws IOException {
File f = new File(path);
FileInputStream is = new FileInputStream(f);
BufferedInputStream bis = new BufferedInputStream(is);
java.io.ByteArrayOutputStream fos = new java.io.ByteArrayOutputStream();
byte buffer[] = new byte[2048];
int read;
do {
read = is.read(buffer, 0, buffer.length);
if (read > 0) {
fos.write(buffer, 0, read);
}
} while (read > -1);
fos.close();
bis.close();
is.close();
return fos.toString(encoding);
}
}
自己完成controller，以及mapping映射后，注意要用get请求
http://localhost:8080/api/img/exportPdf?htmlDocument=12%E7%9A%84%E5%8F%91%E9%A1%BA%E4%B8%B0%E9%98%BF%E6%96%AF%E9%A1%BF%E5%8F%91%E9%80%81%E5%88%B0%E5%8F%91%E9%80%81%E5%A4%A7&fileName=123
便可以下载pdf了
如果觉得《java html转pdf 无法支持中文_java转pdf（html转为pdf） 解决中文乱码 标签不规范等问题...》对你有帮助，请点赞、收藏，并留下你的观点哦！
