关键代码展示 wkhtmltopdf可选参数该wkhtmltopdf只做了简单的封装装，基本满足单个文件生成、批量生成、文档合并等功能，这里只展示了部分代码，如需全部代码请到该链接下载https://download.csdn.net/download/u010913170/85336249
完整jar包下载路径.
- d大纲参数选项
package com.example.wkhtmltopdf.builder;
import com.example.wkhtmltopdf.builder.constant.OrientationEnum;
import com.example.wkhtmltopdf.builder.constant.PaperSizeEnum;
import java.util.Optional;
/**
* 大纲参数选项
*/
public class GlobalOptions {
private GlobalOptions() {}
public static class Builder{
private StringBuilder command = new StringBuilder();
/**
* 显示最详细的说明文档
* @return
*/
public Builder extendedHelp(){
command.append(" -H ");
return this;
}
/**
* 简洁的帮助文档
* @return
*/
public Builder help(){
command.append(" -h ");
return this;
}
......
}
}
- 页眉和页脚参数选项
package com.example.wkhtmltopdf.builder;
/**
* 页眉和页脚参数选项
*/
public class HeadersAndFooterOptions {
private HeadersAndFooterOptions() {}
public static class Builder {
private StringBuilder command = new StringBuilder();
/**
* 页脚文字居中
*
* @return
*/
public Builder footerCenter(String text) {
command.append(" --footer-center ").append(text);
return this;
}
/**
* 设置页脚的字体 (默认为 Arial)
*
* @return
*/
public Builder footerFontName(String name) {
command.append(" --footer-font-name ").append(name);
return this;
}
......
}
}
- 大纲参数选项
package com.example.wkhtmltopdf.builder;
/**
* 大纲参数选项
*/
public class OutlineOptions {
private OutlineOptions() {}
public static class Builder {
private StringBuilder command = new StringBuilder();
/**
* 输出默认的 TOC xsl 样式表到标准输出
* @return
*/
public Builder dumpDefaultTocXsl(){
command.append(" --dump-default-toc-xsl ");
return this;
}
......
}
}
- 页面对象参数
package com.example.wkhtmltopdf.builder;
import com.example.wkhtmltopdf.builder.constant.HandlerEnum;
/**
* 页面对象参数
*/
public class PageOptions {
private PageOptions() {}
public static class Builder {
private StringBuilder command = new StringBuilder();
/**
* 禁止智能收缩策略
*
* @return
*/
public Builder disableSmartShrinking() {
command.append(" --disable-smart-shrinking ");
return this;
}
/**
* 开启智能收缩策略(默认)
*
* @return
*/
public Builder enableSmartShrinking() {
command.append(" --enable-smart-shrinking ");
return this;
}
......
}
}
- 目录对象参数
package com.example.wkhtmltopdf.builder;
/**
* 目录对象参数
*/
public class TOCOptions {
private TOCOptions() {}
public static class Builder {
private StringBuilder command = new StringBuilder();
/**
* 在目录中不使用虚线
*
* @return
*/
public Builder disableDottedLines() {
command.append(" --disable-dotted-lines ");
return this;
}
......
}
}
- 常用的参数
package com.example.wkhtmltopdf.builder.commoncommands;
import com.example.wkhtmltopdf.builder.constant.OrientationEnum;
import com.example.wkhtmltopdf.builder.constant.PaperSizeEnum;
import java.util.Optional;
public class CommonCommands {
private CommonCommands() {}
public static class Builder{
private StringBuilder command = new StringBuilder();
/**
* 设置页面高度 参数的值得单位默认是mm
* @param pageHeight 页面高度
* @return
*/
public Builder pageHeight(String pageHeight){
command.append(" --page-height ").append(pageHeight);
return this;
}
......
}
}
package com.example.wkhtmltopdf.builder;
import com.example.wkhtmltopdf.pojo.PathConfig;
import com.example.wkhtmltopdf.util.FileUtils;
import com.example.wkhtmltopdf.util.WkHtmlToPdfUtil;
import org.springframework.util.CollectionUtils;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
public class WkHtmlToPdfBuilder {
public static class Builder{
/**
* wkHtmlToPdf工具路径
*/
private String wkHtmlToPdfPath = null;
/**
* html路径
*/
private String htmlPath = null;
/**
* 批量html
*/
private List htmlPathList;
/**
* html生成pdf后合并成一个pdf
*/
private boolean mergePdfFlag = false;
/**
* html合并完成之后生成pdf标识
*/
private boolean mergeHtmlFlag = false;
/**
* 生成pdf路径
*/
private String pdfPath = "";
/**
* 批量文件生成
*/
private List<PathConfig> pathConfigList;
/**
* 批量处理标识
*/
private boolean batchFlag = false;
private String globalOptions = "";
private String outlineOptions = "";
private String pageOptions = "";
private String headersAndFooterOptions = "";
private String tocOptions = "";
private String commonCommands;
/**
* 扩展
*/
private String extend;
public Builder(){
this.wkHtmlToPdfPath = WkHtmlToPdfUtil.getInstallPath();
};
public Builder(String htmlPath, String pdfPath) {
this.htmlPath = htmlPath;
this.pdfPath = pdfPath;
this.wkHtmlToPdfPath = WkHtmlToPdfUtil.getInstallPath();
}
public Builder globalOptions(String globalOptions){
this.globalOptions = globalOptions;
return this;
}
public Builder pageOptions(String pageOptions){
this.pageOptions = pageOptions;
return this;
}
public Builder headersAndFooterOptions(String headersAndFooterOptions){
this.headersAndFooterOptions = headersAndFooterOptions;
return this;
}
public Builder tocOptions(String tocOptions){
this.tocOptions = tocOptions;
return this;
}
public Builder outlineOptions(String outlineOptions){
this.outlineOptions = outlineOptions;
return this;
}
public Builder commonCommands(String commonCommands){
this.commonCommands = commonCommands;
return this;
}
public Builder mergeHtml(List htmlPathList, String pdfPath){
this.htmlPathList = htmlPathList;
this.pdfPath = pdfPath;
this.mergeHtmlFlag = true;
return this;
}
public Builder mergePdf(List htmlPathList, String pdfPath){
this.htmlPathList = htmlPathList;
this.pdfPath = pdfPath;
this.mergePdfFlag = true;
return this;
}
public Builder batch(List<PathConfig> pathConfigList){
this.pathConfigList = pathConfigList;
File file = new File(WkHtmlToPdfUtil.getTempPath());
if(!file.exists()){
file.mkdirs();
}
this.batchFlag = true;
return this;
}
public Builder extend(String extend){
this.extend = extend;
return this;
}
public String build() {
StringBuilder command = new StringBuilder();
StringBuilder setCommand = new StringBuilder();
// 封装wk生成参数
setCommand.append(globalOptions).append(" ")
.append(pageOptions).append(" ")
.append(headersAndFooterOptions).append(" ")
.append(tocOptions).append(" ")
.append(outlineOptions).append(" ");
if(CollectionUtils.isEmpty(pathConfigList)){
command.append(wkHtmlToPdfPath).append(" ")
.append(setCommand)
.append(htmlPath).append(" ")
.append(pdfPath).append(" ");
}
// 如果批量设置参数不为空，则执行批量
if(!CollectionUtils.isEmpty(pathConfigList)){
// 获取批量待执行命令
String echoCommand = getBatchCommand(setCommand,pathConfigList);
command.append(echoCommand);
}
return command.toString();
}
public boolean commit() throws Exception {
StringBuilder command = new StringBuilder();
StringBuilder setCommand = new StringBuilder();
setCommand.append(globalOptions).append(" ")
.append(pageOptions).append(" ")
.append(headersAndFooterOptions).append(" ")
.append(tocOptions).append(" ")
.append(outlineOptions).append(" ");
// 如果批量设置参数不为空，则执行批量
if(batchFlag){
// 获取批量待执行命令
String echoCommand = getBatchCommand(setCommand,pathConfigList);
// 获取写入文件名称
String tempPath = WkHtmlToPdfUtil.getTempFilePath();
// 将命令写到文件中
FileUtils.writeFile(new File(tempPath), echoCommand);
return WkHtmlToPdfUtil.excuteCMDBatFile(tempPath);
}
// 先将所有html合并成一个html，再生成pdf
if(mergeHtmlFlag){
StringBuffer stringBuffer = new StringBuffer();
for(int i=0; i<htmlPathList.size(); i++){
String htmlPath = (String) htmlPathList.get(i);
String s = FileUtils.readFile(new File(htmlPath));
stringBuffer.append(s);
}
// 获取临时文件
String tempPath = WkHtmlToPdfUtil.getTempPath();
// 临时文件名
String htmlPath = tempPath+UUID.randomUUID() + ".html";
// 将合并的html写到文件中
boolean sucess = FileUtils.writeFile(new File(htmlPath), stringBuffer.toString());
if(sucess){
command.append(wkHtmlToPdfPath).append(" ")
.append(setCommand)
.append(htmlPath).append(" ")
.append(pdfPath).append(" ");
return WkHtmlToPdfUtil.HTML2PDFbyexe(command.toString());
}else{
throw new Exception("合并html失败，请检查相关信息！");
}
}
// 先将单个html生成pdf，之后再将pdf合并成一个
if(mergePdfFlag){
List<String> list = new ArrayList<>();
for(int i=0; i<htmlPathList.size(); i++) {
StringBuilder mergePdfCommand = new StringBuilder();
String htmlPath = (String) htmlPathList.get(i);
// 获取临时文件
String tempPath = WkHtmlToPdfUtil.getTempPath();
// 临时文件名
String pdfPath = tempPath+UUID.randomUUID() + ".pdf";
mergePdfCommand.append(wkHtmlToPdfPath).append(" ")
.append(setCommand)
.append(htmlPath).append(" ")
.append(pdfPath).append(" ");
// 调用生成pdf
boolean flag = WkHtmlToPdfUtil.HTML2PDFbyexe(mergePdfCommand.toString());
// 如果生成成功
if(flag){
list.add(pdfPath);
}else{
throw new Exception("生成pdf失败，请检查相关信息！");
}
}
return FileUtils.mergePDF(list, pdfPath);
}
command.append(wkHtmlToPdfPath).append(" ")
.append(setCommand)
.append(htmlPath).append(" ")
.append(pdfPath).append(" ");
return WkHtmlToPdfUtil.HTML2PDFbyexe(command.toString());
}
/**
* 获取批量执行的cmd命令
* @param setCommand
* @param pathConfigList
* @return
*/
private String getBatchCommand(StringBuilder setCommand, List<PathConfig> pathConfigList) {
StringBuilder echoCommand = new StringBuilder();
for(int i=0; i<pathConfigList.size(); i++){
PathConfig pathConfig = pathConfigList.get(i);
// 获取html路径
String htmlPath = pathConfig.getHtmlPath().replace("\","\\");
String pdfPath = pathConfig.getPdfPath().replace("\","\\");
echoCommand.append(wkHtmlToPdfPath).append(" ")
.append(setCommand)
.append(htmlPath).append(" ")
.append(pdfPath);
if(i!=pathConfigList.size()-1){
// 拼接换行
echoCommand.append(System.getProperty("line.separator"));
}
}
return echoCommand.toString();
}
}
}
package com.example.wkhtmltopdf;
import com.example.wkhtmltopdf.builder.WkHtmlToPdfBuilder;
import com.example.wkhtmltopdf.builder.commoncommands.CommonCommands;
import com.example.wkhtmltopdf.builder.constant.OrientationEnum;
import com.example.wkhtmltopdf.builder.constant.PaperSizeEnum;
import com.example.wkhtmltopdf.pojo.PathConfig;
import java.util.ArrayList;
import java.util.List;
public class WkHtmlToPdf {
public static void main(String[] args) throws Exception {
// long begin = System.currentTimeMillis();
// for(int i=0;i<30;i++){
// String commonCommands = new CommonCommands.Builder().orientation(OrientationEnum.landscape).pageSize(PaperSizeEnum.A1).build();
// boolean flag = new WkHtmlToPdfBuilder.Builder("D:\404.html", "D:\wkhtmltopdf\gaoyuchao"+i+".pdf").commonCommands(commonCommands).commit();
// }
// long end = System.currentTimeMillis();
// System.out.println(end-begin);
//
//
//
//
// begin = System.currentTimeMillis();
// String commonCommands = new CommonCommands.Builder().orientation(OrientationEnum.landscape).pageSize(PaperSizeEnum.A1).build();
// List pathConfigList = new ArrayList<>();
// for(int i=0;i<30;i++){
// pathConfigList.add(
// PathConfig.builder()
// .htmlPath("D:\404.html")
// .pdfPath("D:\wkhtmltopdf\test"+i+".pdf").build()
// );
// }
// boolean flag = new WkHtmlToPdfBuilder.Builder().commonCommands(commonCommands).batch(pathConfigList).commit();
// end = System.currentTimeMillis();
// System.out.println(end-begin);
long begin = System.currentTimeMillis();
String commonCommands = new CommonCommands.Builder().orientation(OrientationEnum.landscape).pageSize(PaperSizeEnum.A1).build();
List<PathConfig> pathConfigList = new ArrayList<>();
for(int i=0;i<30;i++){
pathConfigList.add(
PathConfig.builder()
.htmlPath("D:\404.html")
.pdfPath("D:\wkhtmltopdf\test"+i+".pdf").build()
);
}
List<Object> list = new ArrayList<>();
list.add("D:\4041.html");
list.add("D:\4041.html");
list.add("D:\4041.html");
list.add("D:\4041.html");
list.add("D:\4041.html");
list.add("D:\4041.html");
boolean flag = new WkHtmlToPdfBuilder.Builder().commonCommands(commonCommands).mergePdf(list, "D:\wkhtmltopdf\test.pdf").commit();
long end = System.currentTimeMillis();
System.out.println(end-begin);
}
}
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