java中借助pdf导出

1.自定义注解部分代码：

package com.fitk.emis.corp.export_Util.itextpdf.pdf;


import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target(ElementType.FIELD)//表示这个注解只能用到属性
@Retention(RetentionPolicy.RUNTIME)//表示这个注解在运行时会存在，自定义注解一般设置为这个值
public @interface PdfColumn {
    /**
     * @Title: title
     * @Description: 表头列名 必填
     */
    public String title();

    /**
     * 序号，如果为负号，则代表有行重叠
     */
    public int sort();

    /**
     当序号重复，就是行叠加
     */
    public String sort_row() default "";


    /**
     * @Title: width
     * @Description: 列宽 默认15
     */
    public float width() default 0.15f;

    /**
     * @Title: width
     * @Description: 列高 默认30
     */
    public int height() default 30;

    public enum Alignment {
        LEFT(0), ALIGN_CENTER(1), RIGHT(2);
        private int value;

        private Alignment(int value) {
            this.value = value;
        }
        public int getValue() {
            return value;
        }
    };

    /**
     * @Title: alignment
     * @Description: 文字样式 默认居中(Alignment.CENTER)
     */
    public PdfColumn.Alignment alignment() default Alignment.ALIGN_CENTER;

//    /**
//     * @Title: boder
//     * @Description: 单元格是否需要边框 环绕包围 默认true
//     */
//    public boolean boder() default true;

//    public enum StyleColor {
//        WHITE(0x9), BLACK(0x8), BLUE(0xc), RED(0xa), YELLOW(0xd);
//        private int value;
//
//        private StyleColor(int value) {
//            this.value = value;
//        }
//        public int getValue() {
//            return value;
//        }
//    };

//    /**
//     * @Title: styleColor
//     * @Description: 单元格背景色 默认白色
//     */
//    public ExcelColumn.StyleColor styleColor() default ExcelColumn.StyleColor.WHITE;
//
//    public enum FontColor {
//        BLACK(0x8), BLUE(0xc), RED(0xa), YELLOW(0xd);
//        private int value;
//
//        private FontColor(int value) {
//            this.value = value;
//        }
//        public int getValue() {
//            return value;
//        }
//    };

//    /**
//     * @Title: fontColor
//     * @Description: 文字颜色 默认黑色(FontColor.BLACK) 暂支持 BLACK BLUE RED YELLO
//     */
//    public ExcelColumn.FontColor fontColor() default ExcelColumn.FontColor.BLACK;

    /**
     * @Title: fontSize
     * @Description: 字号大小 默认10
     */
    public int fontSize() default 10;

    /**
     * @Title: fontName
     * @Description: 字体 默认微软雅黑
     */
    public String fontName() default "微软雅黑";
}

2.例子实体类部分

package com.fitk.emis.corp.entity.bmpl_old;

import com.baomidou.mybatisplus.annotations.TableField;
import com.baomidou.mybatisplus.annotations.TableName;
import com.fitk.emis.corp.export_Util.itextpdf.pdf.PdfColumn;
import com.fitk.emis.corp.service.my_join_exp.pdf.MyPdfColumn;
import lombok.Data;

import java.io.Serializable;

/**
 * 用来查询检修记录表的，这里其实也可以当成检修线入库轴承对象
 * @TableName V_OH_JX_RECORD
 */
@TableName(value ="V_OH_JX_RECORD")
@Data
public class list_v_oh_jxRecord implements Serializable {
    //默认设置值
    private static final String[] myTitle = new String[]{"轴承编号","检修自互检(标记，通气栓)","附件检修自互检","注脂(g)","注脂自互检","人工组装自互检","外圈外径（mm）","内圈内径(mm)"
            ,"后挡圈(mm)","挡油环(mm)","测量自互检"};

    /**
     * 
     */
    @MyPdfColumn(title = "NO.",sort=1)
    private String no;

    private String brgId;

    /**
     *
     */
    @PdfColumn(title = "轴承编号",width = 30,sort=1,fontSize=10)
    @MyPdfColumn(title = "轴承编号",sort=2)
    private String zcbh;


    /**
     *
     */
    @PdfColumn(title = "检修自互检(标记，通气栓)",width = 30,sort=2,fontSize=10)
    private String face01Man;

    /**
     *
     */
    @PdfColumn(title = "检修自互检(标记，通气栓)",width = 30,sort=3,fontSize=10)
    private String face02Man;


    //复检检修自互检 （暂时空着）
    @PdfColumn(title = "附件检修自互检",width = 15,sort=4,fontSize=10)
    private String fujian1_man;

    /**
     *
     */
    @PdfColumn(title = "附件检修自互检",width = 15,sort=5,fontSize=10)
    private String fujian2_man;



    /**
     *
     */
    @PdfColumn(title = "注脂(g)",width = 15,sort=-6,fontSize=10,sort_row = "6_1")
    private String oilWeightNqa;

    /**
     *
     */
    @PdfColumn(title = "注脂(g)",width = 15,sort=-6,fontSize=10,sort_row = "6_2")
    private String oilWeightNqb;

    /**
     *
     */
    @PdfColumn(title = "注脂(g)",width = 15,sort=-6,fontSize=10,sort_row = "6_3")
    private String oilWeightWq;

    /**
     *
     */
    @PdfColumn(title = "注脂自互检",width = 15,sort=7,fontSize=10)
    private String oil_zzzj;

    @PdfColumn(title = "注脂自互检",width = 15,sort=8,fontSize=10)
    private String oil_zzhj;

    /**
     *
     */
    private String newOh;

    /**
     *
     */
    @PdfColumn(title = "人工组装自互检",width = 30,sort=9,fontSize=10)
    private String completeMan;

    //互检暂时是空的
   // @PdfColumn(title = "人工组装自互检",width = 15,sort=10,fontSize=10)
    private String completeMan2;

    /**
     *
     */

    @PdfColumn(title = "外圈外径(mm)",width = 15,sort=-10,fontSize=10,sort_row = "10_1")
    private String wqwja;

    /**
     *
     */
    @PdfColumn(title = "外圈外径(mm)",width = 15,sort=-10,fontSize=10,sort_row = "10_2")
    private String wqwjb;

    /**
     *
     */
    @MyPdfColumn(title = "外圈外径平均值(mm)",sort=3)
    @PdfColumn(title = "外圈外径(mm)",width = 15,sort=-10,fontSize=10,sort_row = "10_3")
    private String wqwjavg;

    /**
     *
     */
    @PdfColumn(title = "内圈内径(mm)",width = 15,sort=-11,fontSize=10,sort_row = "11_1")
    private String nqnja;

    /**
     *
     */
    @PdfColumn(title = "内圈内径(mm)",width = 15,sort=-11,fontSize=10,sort_row = "11_2")
    private String nqnjb;

    /**
     *
     */
    @MyPdfColumn(title = "内圈内径平均值(mm)",sort=4)
    @PdfColumn(title = "内圈内径(mm)",width = 15,sort=-11,fontSize=10,sort_row = "11_3")
    private String nqnjavg;


    /**
     *
     */
    @MyPdfColumn(title = "后挡圈(mm)",sort=5)
    @PdfColumn(title = "后挡圈(mm)",width = 15,sort=12,fontSize=10)
    private String hdqnj;

    /**
     *
     */
    @MyPdfColumn(title = "挡油环(mm)",sort=6)
    @PdfColumn(title = "挡油环(mm)",width = 15,sort=13,fontSize=10)
    private String dyhnj;

    //暂时为空
    @PdfColumn(title = "测量自互检(mm)",width = 15,sort=14,fontSize=10)
    private String clman;

    @PdfColumn(title = "测量自互检(mm)",width = 15,sort=15,fontSize=10)
    private String checkCjMan;



    private String dyhwj;



    /**
     *
     */
    private String hdqwj;





    /**
     * 
     */
    private String lastSysPk;

    /**
     * 
     */
    private String isSt;

    /**
     * 
     */
    private String isStDesc;



    /**
     * 
     */
    private String zcxh;

    /**
     * 
     */
    private String zcxhDesc;

    /**
     * 
     */
    private String zcxc;

    /**
     * 
     */
    private String zcxcDesc;

    /**
     * 
     */
    private String lieCode;

    /**
     * 
     */
    private String carCode;

    /**
     * 
     */
    private String informCode;

    /**
     * 
     */
    private String isAxes;

    /**
     * 
     */
    private String isAxesDesc;

    /**
     * 
     */
    private String axesCode;

    /**
     * 
     */
    private String wheelCode;

    /**
     * 
     */
    private String wheelDir;

    /**
     * 
     */
    private String woPk;

    /**
     * 
     */
    private String trainNo;

    /**
     * 
     */
    private String trainType;

    /**
     * 
     */
    private String carNo;

    /**
     * 
     */
    private String projectName;

    /**
     * 
     */
    private String woName;

    /**
     * 
     */
    private String wbsName;

    /**
     * 
     */
    private String jjPeople;

    /**
     * 
     */
    private String jjDate;

    /**
     * 
     */
    private String isTrans;

    /**
     * 
     */
    private String isTransDesc;

    /**
     * 
     */
    private String lastDt;

    /**
     * 
     */
    private String ticketPaper;

    /**
     * 
     */
    private String wheelNum;

    /**
     * 
     */
    private String repaireItemNum;

    /**
     * 
     */
    private String instanceName;

    /**
     * 
     */
    private String instanceSerialNum;

    /**
     * 
     */
    private String creationDate;

    /**
     * 
     */
    private String woXc;


    public String getOilWeightNqa() {
        return "A:"+oilWeightNqa;
    }

    public String getOilWeightNqb() {
        return "B:"+ oilWeightNqb;
    }

    public String getOilWeightWq() {
        return "中间:"+ oilWeightWq;
    }

    public String getWqwja() {
        return "A:"+wqwja;
    }

    public String getWqwjb() {
        return "B:"+wqwjb;
    }

    public String getWqwjavg() {
        return "平均:"+wqwjavg;
    }

    public String getNqnja() {
        return "A:"+nqnja;
    }

    public String getNqnjb() {
        return "B:"+nqnjb;
    }

    public String getNqnjavg() {
        return "平均:"+nqnjavg;
    }

    public String getDyhwj() {
        return dyhwj;
    }

    public String getDyhnj() {
        return dyhnj;
    }

    public String getHdqwj() {
        return hdqwj;
    }

    public String getHdqnj() {
        return hdqnj;
    }

    public String getCheckCjMan() {
        return checkCjMan;
    }

    public String getCompleteMan() {
        return completeMan;
    }

    public String getOil_zzzj() {
        if(oil_zzzj==null){
            return "点检";
        }
        return oil_zzzj;
    }

    public String getClman() {
        if(clman==null){
            return "点检";
        }
        return clman;
    }

    public static String[] getMyTitle() {
        return myTitle;
    }

    @TableField(exist = false)
    private static final long serialVersionUID = 1L;
}

3.工具类，还没完善，有时间可以自己把一些参数提出来让调用者来设置减小耦合。

package com.fitk.emis.corp.export_Util.itextpdf.pdf;

import com.baomidou.mybatisplus.annotations.TableField;
import com.fitk.emis.corp.entity.bmpl_old.list_v_oh_jxRecord;
import com.fitk.emis.corp.entity.home.list_exp_col;
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;

public class CreatePDFUtils1 {

    public Logger  log = LoggerFactory.getLogger(CreatePDFUtils1.class);
    public    Document document;
    public   Class  clazz;
    //默认字体大小10
    public   Float font_size=10f;
    //默认不加粗
    public   int font_sty=Font.NORMAL;

    //创建字体(默认)
    public BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);


    //字体大小加粗设置
    public  Font size14_Bfont=new Font(baseFont,14,Font.BOLD);    //14号加租字体
    public  Font size14font=new Font(baseFont,14,Font.NORMAL);    //14号正常字体

    public  Font size16font=new Font(baseFont,16,Font.NORMAL);    //14号正常字体
    public  Font size18font=new Font(baseFont,18,Font.NORMAL);    //14号正常字体

    public  Font size12_Bfont=new Font(baseFont,12,Font.BOLD);    //12号加租字体
    public  Font size12font=new Font(baseFont,12,Font.NORMAL);    //12号正常字体
    public  Font size11font=new Font(baseFont,10,Font.NORMAL);    //11号正常字体
    public  Font size10_Bfont=new Font(baseFont,10,Font.BOLD);    //10号加租字体
    public  Font size10font=new Font(baseFont,10,Font.NORMAL);    //10号正常字体

    public  Font size8_Bfont=new Font(baseFont,8,Font.BOLD);    //10号加租字体
    public  Font size8font=new Font(baseFont,8,Font.NORMAL);    //10号正常字体

    public  Font size7_Bfont=new Font(baseFont,7,Font.BOLD);    //7号加粗字体
    public  Font size7font=new Font(baseFont,7,Font.NORMAL);    //7号正常字体

    public  Font size6_Bfont=new Font(baseFont,6,Font.BOLD);    //6号加粗字体
    public  Font size6font=new Font(baseFont,6,Font.NORMAL);    //6号正常字体




    //默认字体
    public  Font size_natural=new Font(baseFont,font_size,font_sty);

    //默认表头字体
    public  Font size_titleFont=new Font(baseFont,10,Font.NORMAL);    //10号加租字体
    //默认表尾字体
    public  Font size_footerFont=size8font;
    //默认字段头字体
    public  Font size_filed_Header_font=size7font;
    //默认内容体字体
    public  Font size_filed_Body_font=size7font;



    //默认行高
    public  int  row_Height=15;

    //默认行高(表头)
    public  int  row_Height_title=20;

    //默认行高(数据字段表头)
    public  int  row_Height_header=15;

    //默认行高(数据)
    public  int  row_Height_body=18;

    //默认行高（表尾）
    public  int  row_Height_footer=15;

    //默认行宽占纸张比例   字段及数据部分
    public int rowWidth=100;

    //默认行宽占纸张比例 表头
    public int rowWidth_level=100;

    //默认行宽占纸张比例 表头
    public int rowWidth_footer=100;


    //左边距
    public float marginLeft=36f;
    //右边距
    public float marginRight=36f;
    //上边距
    public float marginTop=36f;
    //下边距
    public float marginBottom=36f;




    public CreatePDFUtils1() throws IOException, DocumentException {

    }

    /**
     *
     * @param str 字符串
     * @param font 字体
     * @param high 表格高度
     * @Param alignCenter 是否水平居中
     * @Param alignMidde  是否垂直居中
     * @Param haveColor 是否有背景色(灰色)
     * @return
     */
    public static PdfPCell  mircoSoftFont(String str,Font font,int high,boolean alignCenter,boolean alignMidde){
        PdfPCell pdfPCell  = new PdfPCell(new Phrase(str,font));
        pdfPCell.setMinimumHeight(high);
        pdfPCell.setUseAscender(true); // 设置可以居中
        if (alignCenter){
            pdfPCell.setHorizontalAlignment(PdfPCell.ALIGN_CENTER); // 设置水平居中
        }
        if (alignMidde){
            pdfPCell.setVerticalAlignment(PdfPCell.ALIGN_MIDDLE); // 设置垂直居中
        }
        return pdfPCell;
    }

    /**
     *
     * @param str 字符串
     * @param font 字体
     * @param high 表格高度
     * @Param alignCenter 是否水平居中
     * @Param alignMidde  是否垂直居中
     * @Param haveColor 是否有背景色(灰色)
     * @return
     */
    public static PdfPCell  mircoSoftFont(String str,Font font,int high,boolean alignCenter,boolean alignMidde,boolean haveColor){
        PdfPCell pdfPCell  = new PdfPCell(new Phrase(str,font));
        pdfPCell.setMinimumHeight(high);
        pdfPCell.setUseAscender(true); // 设置可以居中
        if (alignCenter){
            pdfPCell.setHorizontalAlignment(PdfPCell.ALIGN_CENTER); // 设置水平居中
        }
        if (alignMidde){
            pdfPCell.setVerticalAlignment(PdfPCell.ALIGN_MIDDLE); // 设置垂直居中
        }
        if (haveColor){
            //颜色代码 RGB
            pdfPCell.setBackgroundColor(new BaseColor(217,217,217));
        }
        return pdfPCell;
    }




//    public void createHardwarePDF(String outputPath, List dataList,List> rowList,Class clazz,
//                                  List list_Col, float columnWidths_all[])throws Exception{
//
        //新建文档对象，页大小为A4纸，然后设置4个边距
        document = new Document(PageSize.A4,20,20,30,30);
//        //新建文档对象，页大小为A4纸，然后设置4个边距
//        // new RectangleReadOnly(595.0F, 842.0F);
//        document = new Document(new Rectangle(PageSize.A4.getHeight(),PageSize.A4.getWidth()));
//        PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream(outputPath));
//        document.open();
//
//        //创建字体
//        BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);
//        //字体对象
//        Font size14font = new Font(baseFont,14,Font.NORMAL);  //大小为14的正常字体
//        Font size10font = new Font(baseFont,10,Font.BOLD); //大小为10的粗体
//
//        Font size6font = new Font(baseFont,6,Font.NORMAL);  //大小为6的正常字体
//
//        //添加标题
//        //createHeaderLeaver(int rowWidth,int columns,float columnWidths[],int highs[],String text[],Font size_font)
//        createHeaderLeaver(100,1,new float[]{1.0f},new int[]{50},new String[]{"这是一个标题"},size10font,true,true);
        PdfPTable tableName = new PdfPTable(1);
        tableName.setWidthPercentage(10);  //设置标题长度占纸张比例
        tableName.addCell(mircoSoftFont("个人信息",size14font,50,true,true));
        document.add(tableName);
//        //添加第二行的数据
//        createHeaderLeaver(100,3,new float[]{0.18f,0.32f,0.5f},new int[]{50,50,50},new String[]{"第二行1","第二行2","第二行3"},size10font,false,true);
//
//
//        //设置动态表(List《T》)
//        //setDateList(100,4, new float[]{0.18f,0.32f,0.3f,0.2f}, new int[]{50,50,50,50}, new String[]{"序号","用户名","性别","年龄"}, size10font,dataList);
//
//        int size = list_Col.size();
//        int highs_title[]=new int[size];
//        int highs[]=new int[size];
//        float columnWidths[]= new float[size];
        float columnWidths_body[]= new float[size];
//
//        columnWidths=columnWidths_all;
//
//        for (int tem=0;tem< size; tem++) {
//            highs_title[tem]=15;
//            highs[tem]=15;
//        }
//
//
//        /**
//         * @Description: 创建数据字段头
//         * @Param: rowWidth    一行总宽
//         * @Param: columns    分割列数
//         * @Param: columnWidths[]    列宽权重数组
//         * @Param: highs_title[]       字段头行高数组
//         * @Param: highs[]             内容行高数组
//         * @Param: text[]               字段表头内容(这里动态取得数据库)
//         * @Param: size_font_title       字段头字体类型
//         * @Param: size_font_body        内容字体类型
//         * @Param: List> rowList
//         * @return:
//         * @Author: sj
//         * @Date: 2023/12/15/015
//         */
        (int columns, float columnWidths[] ,int highs[],
        Font size_font [], List> rowList,List list_Col )
//        //设置动态表(List《T》)
//        setDateList (list_Col.size(),columnWidths,highs,
//                size6font,size6font,  rowList,list_Col);
//
        PdfPTable secondRowTable = new PdfPTable(3); //三列的意思
        secondRowTable.setWidthPercentage(90);
        //这里的数组长度是上面创建的列数,数组的总和为1,就是按比例划分的意思
        secondRowTable.setTotalWidth(new float[]{0.18f,0.32f,0.5f});
        secondRowTable.addCell(mircoSoftFont(" 姓名: ",size10font,50,false,true));
        secondRowTable.addCell(mircoSoftFont("李晓明",size10font,50,false,true));
        secondRowTable.addCell(mircoSoftFont(" 出生日期: 1994年3月14日",size10font,50,false,true));
        document.add(secondRowTable);
//        //第三行数据
        PdfPTable thirdRowTable = new PdfPTable(3);
        thirdRowTable.setWidthPercentage(90);
        thirdRowTable.setTotalWidth(new float[]{0.18f,0.32f,0.5f});
        thirdRowTable.addCell(mircoSoftFont(" 名族:",size10font,50,false,true));
        thirdRowTable.addCell(mircoSoftFont("汉族",size10font,50,false,true));
        thirdRowTable.addCell(mircoSoftFont(" 联系电话: 13888880000",size10font,50,false,true));
        document.add(thirdRowTable);
//        //第四行数据
        PdfPTable fourthRowTable = new PdfPTable(2);
        fourthRowTable.setWidthPercentage(90);
        fourthRowTable.setTotalWidth(new float[]{0.66f,0.34f});
        fourthRowTable.addCell(mircoSoftFont(" 个人描述 :",size10font,175,false,false));
        fourthRowTable.addCell(mircoSoftFont("个人特长 :",size10font,175,false,false));
        document.add(fourthRowTable);
//        //第五行
        PdfPTable fifthDetailName = new PdfPTable(1);
        fifthDetailName.setWidthPercentage(90);
        fifthDetailName.addCell(mircoSoftFont("获奖记录 :",size14font,50,true,true));
        document.add(fifthDetailName);
        //第六行
        PdfPTable sisthRowTalbe= new PdfPTable(1);
        sisthRowTalbe.setWidthPercentage(90);
        sisthRowTalbe.addCell(mircoSoftFont(" 联系地址: "+"广东省广州市天河区XXXXXXXXXXXXXXXXXX",size10font,50,false,true));
        document.add(sisthRowTalbe);
        PdfPTable seventhRowTalbe = new PdfPTable(1);
        seventhRowTalbe.setWidthPercentage(90);
        seventhRowTalbe.addCell(mircoSoftFont(" 毕业院校 ",size14font,60,true,true));document.add(seventhRowTalbe);
        //第八行
        PdfPTable eiththRowTalbe = new PdfPTable(3);
        eiththRowTalbe.setWidthPercentage(90);
        eiththRowTalbe.setTotalWidth(new float[]{0.3f,0.5f,0.2f});
        eiththRowTalbe.addCell(mircoSoftFont(" 毕业学校",size10font,50,true,true,true));
        eiththRowTalbe.addCell(mircoSoftFont(" 就读日期",size10font,50,true,true,true));
        eiththRowTalbe.addCell(mircoSoftFont(" 联系人",size10font,50,true,true,true));
        document.add(eiththRowTalbe);
        //接下来加List
        String school = "XXX学校";
        String time = "201909  -  2022-06";
        String name = "陈某";
        for (int i = 0 ;i<4 ;i++){
            PdfPTable tempTable = new PdfPTable(3);
            tempTable.setWidthPercentage(90);
            tempTable.setTotalWidth(new float[]{0.3f,0.5f,0.2f});
            tempTable.addCell(mircoSoftFont(school,size10font,50,true,true));
            tempTable.addCell(mircoSoftFont(time,size10font,50,true,true));
            tempTable.addCell(mircoSoftFont(name,size10font,50,true,true));
            document.add(tempTable);
        }
//        document.close();
//        writer.close();
//    }


    /**
    * @Description: 只有表头加内容的pdf
    * @Param: outputPath   导出路径
     * @Param:  List> rowList    内容集合
     * @Param:  clazz    类型
     * @Param:  list_Col    数据库对应的字段及名称等
     * @Param:  columnWidths_all    行列宽
    * @return:
    * @Author: sj
    * @Date: 2023/12/18/018
    */
    public void createHardwarePDF(String outputPath, List> rowList,
                                  List list_Col, float columnWidths_all[])throws Exception{
        //默认a4纵向
        rotate_a4_direction();
        PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream(outputPath));
        document.open();
        //设置行高  第一个表示数据表头行高，第二个表示数据体行高
        int[] highs = {row_Height_header,row_Height_body};
        //设置字体 第一个表示数据表头字体，第二个表示数据体字体
        Font[] fonts = {size6_Bfont,size6font};
//        (int columns, float columnWidths[] ,int highs[],
//        Font size_font [], List> rowList,List list_Col )
        //设置动态表(List《T》)
        setDateList (list_Col.size(),columnWidths_all,highs,
                fonts, rowList,list_Col);
        document.close();
        writer.close();
    }





    public void create_recordPDF(String outputPath,Listlist_v_oh_jxRecords)throws Exception{
        list_v_oh_jxRecord list_v_oh_jxRecord1=null;
        if(list_v_oh_jxRecords!=null&&list_v_oh_jxRecords.size()>0){
            list_v_oh_jxRecord1 = list_v_oh_jxRecords.get(0);
        }
        //默认a4纵向，
        // 这里是自定义了横向
        rotate_a4_transverse(0f);
        //创建文件里流
        FileOutputStream fileOutputStream = createFileOutputStream(outputPath);
        PdfWriter writer = PdfWriter.getInstance(document,fileOutputStream);
        document.open();
        Paragraph par_01 = new Paragraph("检修线轴承尺寸测量",size18font);
        par_01.setSpacingAfter(9f);
        par_01.setAlignment(Element.ALIGN_CENTER);//居中
        //列号
        String lieNo=list_v_oh_jxRecord1.getLieCode();
        //通知号
        String informCode=list_v_oh_jxRecord1.getInformCode();



        //格式化日期格式
        String last_dt=list_v_oh_jxRecord1.getLastDt();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
        Date parse = null;
        try {
            parse = simpleDateFormat.parse(last_dt);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        last_dt = simpleDateFormat.format(parse);
        System.out.println("-----------------》"+last_dt);



//        String text02="列号/通知号："+lieNo+"/"+informCode+
//                "                    辆号："+
//                "                                                  人员："+
//                "                           日期：";
        String text02="列号/通知号："+lieNo+"/"+informCode+
                "                               辆号："+
                "                                           "+
                "                           日期："+last_dt;
        log.info("text02---------------------------->"+text02);
        Paragraph par_02 = new Paragraph(text02,size16font);
        par_02.setSpacingAfter(7f);

        document.addTitle("产线检修记录表");
        document.add(par_01);
        document.add(par_02);
        //设置表头
        PdfPTable thirdRowTable = new PdfPTable(11);
        //设置一列总宽度 默认80f，咱总宽度比例。
        thirdRowTable.setWidthPercentage(rowWidth);
        //是否是数组行高
        int[] highs_field_header = new int[]{30,30,30,30,30,30,30,30,30,30,30};
        float[] columnWidths = new float[]{0.03f,0.03f,0.03f,0.03f,0.03f,0.03f,0.03f,0.03f,0.03f,0.03f,0.03f};
        //字段头内容
        String[] myTitle = list_v_oh_jxRecord.getMyTitle();
//        String[]text=new String[]{"轴承编号","检修自互检(标记，通气栓)","附件检修自互检","注脂(g)","注脂自互检","人工组装自互检","外圈外径（mm）","内圈内径(mm)"
//                ,"后挡圈(mm)","挡油环(mm)","测量自互检"};
        boolean isHeightArr=true;
        int height=highs_field_header[0];
        try {
            //设置列宽权重
            thirdRowTable.setTotalWidth(columnWidths);
            if(highs_field_header.length>1){
                isHeightArr=true;
            }
            for (int i=0;ifileSort_name=new ArrayList<>(lieColums);
                ListfileSort_name=new ArrayList<>();
                //以列的方式存放字段内容

                //这个string数组会牵动全局，其实一直是一个数组操作，是同一个对象
                //String  many_row[]=new String[3];
                Field[] fields = aClass.getDeclaredFields();
                for (Field field : fields) {
                    System.out.println("PdfColumn--------------------->"+field.isAnnotationPresent(PdfColumn.class));
                    if(field.isAnnotationPresent(PdfColumn.class)){
                        pdfColumn = field.getAnnotation(PdfColumn.class);
                        //叠加行
                        if(pdfColumn.sort()<0){
                            //第一个值是list的小标，第二个值是string数组的下标
                            String[] split = pdfColumn.sort_row().split("_");
                            int index=Integer.parseInt(split[0]) - 1;
                            int String_index=Integer.parseInt(split[1])-1;
                            //fileSort_name.add(Integer.parseInt(split[0])-1,null);
                            try {
                                //空的话会抛出异常
                                if(fileSort_name.get(index)!=null){
                                    //不是第一次插入，那就取出来继续存
                                    fileSort_name.get(index)[String_index]=field.getName();

                                }
                            }catch (Exception e){
                                //只有限制最大插入16条
                                if(pdfColumn.sort()*(-1)<=16){
                                    //第一次插入
                                    String  many_row[]=new String[3];
                                    many_row[String_index]=field.getName();
                                    fileSort_name.add(index,many_row);
                                }

                            }

                        }else {
                            fileSort_name.add(pdfColumn.sort()-1,new String[]{ field.getName()});
                        }

                    }
                }
             //   fileSort_name = fileSort_name.subList(0, 16);


                //3 , 6 ,7特殊处理
                for (int i=0;i1){
                        PdfPTable pdfPTable=new PdfPTable(1);

                        for (int k=0;k> rowList    内容集合
     * @Param:  clazz    类型
     * @Param:  list_Col    数据库对应的字段及名称等
     * @Param:  columnWidths_all    行列宽(动态数据部分)
     * @Param:  highs_header[]    表头行高
     * @Param:  columnWidths_header  ArrayList    表格列宽
     * @Param:  columnText_header《内容》  ArrayList  表格列宽
     * @Param:  columnWidth_footer     表尾列宽
     * @Param:  columnText_footer    表尾内容
     * @return:
     * @Author: sj
     * @Date: 2023/12/18/018
     */
    public void createHardwarePDF(String outputPath, List> rowList,
                                  List list_Col, float columnWidths_all[],
                                  int highs_header[] ,ArrayListcolumnWidths_header,ArrayListcolumnText_header,
                                  float [] columnWidth_footer,String[] columnText_footer)throws Exception{
        //默认a4纵向，
        // 这里是自定义了横向
        rotate_a4_transverse();
        //创建文件里流
        FileOutputStream fileOutputStream = createFileOutputStream(outputPath);
        PdfWriter writer = PdfWriter.getInstance(document,fileOutputStream);
        document.open();

        //设置表头
        //几层表头
        int level = highs_header.length;
        for (int i=0;i> rowList,List list_Col )

        //设置动态表(List《T》)
        setDateList (list_Col.size(),columnWidths,highs,
                fonts, rowList,list_Col);

        //设置表尾
        if (columnText_footer!=null && columnText_footer.length>0){
            createHeaderLeaver(rowWidth_footer,1,columnWidth_footer,new int[]{70},columnText_footer
                    ,size_footerFont,true,true);
        }
        fileOutputStream.flush();
        document.close();
        writer.close();
        fileOutputStream.close();

    }



    /**
    * @Description: 创建一行数据表头
    * @Param: columns    分割列数
    * @Param: columnWidths[]    列宽权重数组
    * @Param: highs[]          行高数组
     * @Param: text[]          文本内容
     * @return: size_font          字体类型
    * @Author: sj
    * @Date: 2023/12/15/015
    */
    public  void  createHeaderLeaver(int rowWidth,int columns,float columnWidths[],int highs[],String text[],Font size_font,
                                            Boolean alignCenter,Boolean alignMidde){
        PdfPTable thirdRowTable = new PdfPTable(columns);
        //设置一列总宽度 默认80f，咱总宽度比例。
        thirdRowTable.setWidthPercentage(rowWidth);
        //是否是数组行高
        boolean isHeightArr=false;
        int height=highs[0];
        try {
            //设置列宽权重
            thirdRowTable.setTotalWidth(columnWidths);
            if(highs.length>1){
                isHeightArr=true;
            }
            for (int i=0;i dataList){
        PdfPTable thirdRowTable = new PdfPTable(columns);
        //设置一列总宽度 默认80f，咱总宽度比例。
        thirdRowTable.setWidthPercentage(rowWidth);
        //thirdRowTable.setTotalWidth(new float[]{0.18f,0.32f,0.5f});
        try {
            //设置列宽权重
            thirdRowTable.setTotalWidth(columnWidths);
            //设置字段头
            for (int i=0;i aClass = t.getClass();

                    //获取字段名称集合
                    Field[] declaredFields = aClass.getDeclaredFields();
                    int index=0;
                    for (Field declaredField : declaredFields) {
                        //标有TableField注解的属性不写入pdf
                        boolean annotationPresent = declaredField.isAnnotationPresent(TableField.class);
                        if(annotationPresent){
                            continue;
                        }

                        String fieldName = declaredField.getName();
                        //获取get方法名
                        String getMethodName = "get" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
                        //另外一种手动拼get方法的方式获取值
                        //得到对应的方法
                        Method getMethod = null;
                        try {
                            getMethod = aClass.getMethod(getMethodName, new Class[] {});
                        } catch (NoSuchMethodException e) {
                            e.printStackTrace();
                        }
                        //执行方法，得到返回值
                        Object value = null;
                        try {
                            value = getMethod.invoke(t, new Object[] {});
                        } catch (IllegalAccessException e) {
                            e.printStackTrace();
                        } catch (InvocationTargetException e) {
                            e.printStackTrace();
                        }
                        String textValue="";
                        if (value != null) {
                            textValue = value.toString();
                            System.out.println("getMethodName------>" +getMethodName);
                            System.out.println("getMethodName_value------>" +textValue);
                        }
                        thirdRowTable_date.addCell(mircoSoftFont(textValue,size_font,highs[index],false,true));
                        index++;
                        //设置列内容
                        //  thirdRowTable.addCell(mircoSoftFont(,size_font,highs[i],false,true));
                    }
                document.add(thirdRowTable_date);
            }
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }

    /**
     * @Description: 创建动态数据表
     * @Param: rowWidth    一行总宽
     * @Param: columns    分割列数
     * @Param: columnWidths[]           列宽权重数组
     * @Param: highs_title[]       字段头行高数组
     * @Param: highs[]             第一个值存字段头行高，第二个值存内容行高
     * @Param: text[]              字段表头内容(这里动态取得数据库)
     * @Param: size_font_title       字段头字体类型  size_font【】数组一起存了
     * @Param: size_font_body        内容字体类型
     * @Param: List> rowList   表数据
     * @return:
     * @Author: sj
     * @Date: 2023/12/15/015
     */
    public  void  setDateList(int columns, float columnWidths[] ,int highs[],
                               Font size_font [], List> rowList,List list_Col ){
        PdfPTable thirdRowTable = new PdfPTable(columns);
        //设置一列总宽度 默认80f，咱总宽度比例。
        thirdRowTable.setWidthPercentage(this.rowWidth);
        //thirdRowTable.setTotalWidth(new float[]{0.18f,0.32f,0.5f});
        try {
            //设置列宽权重
            thirdRowTable.setTotalWidth(columnWidths);
            //设置字段头
            for (int i=0;i map = rowList.get(i);
//                //获取字段名称集合
//                Field[] declaredFields = clazz.getDeclaredFields();
                //遍历每个字段,同一行的每一列
                for (int j=0;j

5.接口代码

   /**
     * @Description: 导出pdf格式
     * @Param:
     * @return:
     * @Author: sj
     * @Date: 2023/12/18/018
     */
    @RequestMapping(value = "/home_exp_pdf_record", method = RequestMethod.POST)
    @ResponseBody
    public String downAndExp_pdf_record(HttpServletRequest request, @RequestParam Map inMap , HttpServletResponse response)  {

//        Map myMap=new HashMap<>();
//        myMap.put("brg_ids","00052229,00052225,00052219,00052218,00052217,00052216,00052214,00052213");
        String brg_ids = inMap.get("brg_ids");
        String[] brg_idArr = brg_ids.split(",");
        System.out.println("inMap-------------------->"+inMap);

        //文件路径
        //本地文件地址
        String filePath="D:\\apache-tomcat-8.5.32-x64\\webapps\\bmpl\\downPdf\\";
        //服务器文件地址
        //String filePath="E:\\apache-tomcat-8.5.32-x64\\webapps\\bmpl\\downPdf\\";
        //文件名称
        String fileName="";
        Listlist_v_oh_jxRecords= bmplOldService.get_List_v_oh_jxRecord(brg_idArr);
        list_v_oh_jxRecord list_v_oh_jxRecord = list_v_oh_jxRecords.get(0);
        String zcbh = list_v_oh_jxRecord.getZcbh();
        String lastDt = list_v_oh_jxRecord.getLastDt();
        String format1="";
        SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
        try {
            Date parse = format.parse(lastDt);
             format1 = format.format(parse);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        fileName=zcbh+"("+format1+")"+"产线检修记录表.pdf";
        list_v_oh_jxRecords.forEach(ent->{
            System.out.println("-------------------------->"+ent.toString());
        });

        try {
            new CreatePDFUtils1().create_recordPDF(filePath+fileName,list_v_oh_jxRecords);
        } catch (Exception e) {
            e.printStackTrace();
            return "error";
        }
        return "OK"+filePath+fileName;

    }