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  • 航信电子发票开发(servlet请求方式)

    在系统用户交费后,需要打印发票,可以选择普票或者机打票(票据信息在系统中自定义设置的),也可以打印电子发票,这里对接的是航信的电子发票,请求方式非web服务,而是使用servlet通过HTTP请求的方式获取报文。

    整个开票流程如下:

    本地组装发票明细信息到报文(内部报文加密)——》将组装好的发票信息发往税控服务器——》成功的话解析返回的信息——》发票打印

    报文格式:

    实际测试报文如下:

    <?xml version="1.0" encoding="utf-8"?>
    
    <SERVICE xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
      <HEAD>
        <nsrsbh>140115728183815</nsrsbh>
        <serviceversion>1.3</serviceversion>
        <serviceid>jy.dzptfpkj.hc</serviceid>
        <iszip>N</iszip>
        <issyn>Y</issyn>
        <encryptcode>0</encryptcode>
        <RTNINF/>
      </HEAD>
      <BODY>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</BODY>
    </SERVICE>

    主要代码如下:

    1. 页面选打印电子发票后,确定进入下面方法

    public Result printElectronic(PrintInvoiceEntity entity) {
            // 电子发票不允许进行预览
            if (entity.getIsPreview()) {
                return new Result(Status.ERROR, null, "电子发票不允许进行预览!");
            }
            if (PrintCallingTypeEnum.HEATING.getCode().equals(entity.getPrintCallingType())) {
                //打印热费的电子发票
                return this.printElectronicForHeating(entity);
            } else {
                return new Result(Status.ERROR, null, "未指定打印票据的调用方式!");
            }
        }

    附:相关实体类

    public class PrintInvoiceEntity {
    
        /* ------------------- 非必填字段 ---------------------*/
        private String volumeCode;//票据册号(当票据类型为电子发票时非必填)
        
        /* ------------------- 必填字段 ---------------------*/
        private String companyCode;//开票公司编码
        
        private String gmf_mc;//购买方名称
        private String gmf_nsrsbh;//购买方纳税人识别号
        private String gmf_dzdh;//购买方地址电话
        private String gmf_yhzh;//购买方银行账户
        
        private String bz;//备注
        
        private String card_no;
        private String create_time;
        
        private String printCallingType;//打印调用方式
        private Boolean isPreview;//是否预览模式
        private Boolean isPreprint;//是否预开模式
        private String invoiceType;//票据类型
        
        List<PjItemEntity> pjItemEntities;//票据打印明细

    2. 打印电子发票方法

        private Result printElectronicForHeating(PrintInvoiceEntity entity) {
            // 正常采暖费交费时,获取上年结余
            printInvoiceService.initSurplus(entity.getPjItemEntities());
    
            // 根据交易明细组装发票明细信息
            List<Invoice> invoices = printInvoiceService.splitInvoice(
                    SessionUtil.getUser(), entity);
    
            // 调用航信税控进行打票
            List<Map<String, String>> returnMsg = this.printForHeating(invoices,
                    entity, null);
    
            if (returnMsg.isEmpty()) {
                return new Result(Status.ERROR, null, "电子发票开具失败!");
            }
            return new Result(Status.OK, null, returnMsg);
        }

    3. 组装发票明细信息

       // 将交易明细拆分成发票
      public List<Invoice> splitInvoice(User operator, PrintInvoiceEntity entity) {
            List<Invoice> invoices = new ArrayList<Invoice>();
    
            // 1.初始化字典项数据
            Map<String, String> chargeItemDict = initChargeItemDict();// 收费项目
            // Map<String, Dict> unitPriceTypeDict = initUnitPriceTypeDict();// 单价类别
            Map<String, Dict> areaTypeDict = initAreaTypeDict();// 面积类别
            Map<String, XtwhTaxRate> taxRateDict = initTaxRateDict(); // 税率
            Map<String, SfOtherCost> otherCostDict = initOtherCostDict(); // 第三方费用
    
            List<PjItemEntity> pjItemEntities = entity.getPjItemEntities();
            String customerIds = pjItemEntities.get(0).getSysattachment()
                    .get(InvoiceInfoConstant.CUSTOMER_COLLECTION_ALIAS);
            String[] idArray = customerIds.split(",");
    
            String companyCode = this.getCompanyCode(entity, idArray[0]);
            String  prjName  = DeployConfigUtil.getJcDeployConfig().getProjectName();
            JcCustomer  jccustomer = this.getJccustomer(entity, idArray[0]);
            String userKindType =null;
            if (jccustomer !=null) {
                userKindType= jccustomer.getUserKindCode();
            }
            // 4.获取公共的发票抬头模板
            InvoiceSummary commonSummary = this.createInvoiceSummary(operator,
                    companyCode);
    
            for (int i = 0; i < pjItemEntities.size(); i++) {
                // 浅复制发票抬头对象
                InvoiceSummary summary = commonSummary.clone();
                // 发票请求流水号
                summary.setFpqqlsh(SerialNumberUtil.getNextNumber(2));
                // 1.同步购买方信息
                summary.setGmf_mc(entity.getGmf_mc());// 销售方-名称
                summary.setGmf_nsrsbh(entity.getGmf_nsrsbh());// 销售方-纳税人识别号
                summary.setGmf_dzdh(entity.getGmf_dzdh());// 销售方-地址电话
                summary.setGmf_yhzh(entity.getGmf_yhzh());// 销售方-银行账户
                summary.setCard_no (entity.getCard_no());// 销售方-银行账户
                summary.setCreate_time (entity.getCreate_time());// 销售方-银行账户
                if ("0".equals(prjName)) {
                    summary.setBz(entity.getBz());
                } else if("1".equals(prjName)){
                    if (jccustomer!=null && "user_type_2".equals(jccustomer.getUserTypeCode())) {  // 二部制用户
                        summary.setBz(entity.getBz()+", 上年结余:"+pjItemEntities.get(i).getSurplus());// 备注    
                    }else{
                        summary.setBz(entity.getBz());
                    }
                }
    
                Invoice invoice = this.splitInvoiceDetail(
                        entity.getPrintCallingType(), summary,
                        pjItemEntities.subList(i, i + 1), chargeItemDict,
                        areaTypeDict, taxRateDict, otherCostDict,  userKindType);
                invoices.add(invoice);
            }
            return invoices;
        }

    将交易明细拆分成发票上的多个明细项

    public Invoice splitInvoiceDetail(String printCallingType,
                InvoiceSummary summary, List<PjItemEntity> pjItemEntities,
                Map<String, String> chargeItemDict, Map<String, Dict> areaTypeDict,
                Map<String, XtwhTaxRate> taxRateDict,
                Map<String, SfOtherCost> otherCostDict, String userKindType) {
            List<InvoiceDetail> invoiceDetails = new ArrayList<InvoiceDetail>();
            for (PjItemEntity pjItemEntity : pjItemEntities) {
                // 交易明细为热费
                List<InvoiceDetail> list = this.createInvoiceDetailsByHeatingCost(
                        printCallingType, pjItemEntity, chargeItemDict,
                        areaTypeDict, taxRateDict , userKindType);
                invoiceDetails.addAll(list);
            }
    
            // 2.同步合计金额
            BigDecimal hjje = BigDecimal.ZERO;// 合计金额
            BigDecimal hjse = BigDecimal.ZERO;// 合金税额
            for (InvoiceDetail invoiceDetail : invoiceDetails) {
                hjje = BigDecimalUtil.add(hjje,
                        new BigDecimal(invoiceDetail.getXmje()));
                hjse = BigDecimalUtil.add(hjse,
                        new BigDecimal(invoiceDetail.getSe()));
            }
            summary.setHjje(hjje.toString());
            summary.setHjse(hjse.toString());
            BigDecimal jshj = BigDecimalUtil.add(hjje, hjse);// 价税合计
            summary.setJshj(jshj.toString());
    
            // 3.组装发票
            Invoice invoice = new Invoice();
            invoice.setSummary(summary);
            invoice.setDetails(invoiceDetails);
            return invoice;
        }

    相关实体:

    public class Invoice    {//发票实体
        private InvoiceSummary summary; //发票抬头信息
        private List<InvoiceDetail> details; //发票项目明细信息
    public class InvoiceSummary implements Cloneable{//发票抬头信息实体
    
        private Long pjInfoId; //票据表ID
        private String fp_dm; // 发票代码
        private String fp_hm; // 发票号码
        private String fp_ch;  // 发票册号
        
        private String fpqqlsh; // <FPQQLSH>发票请求流水号</FPQQLSH>
        private String kplx; // <KPLX>开票类型</KPLX>
        private String xsf_nsrsbh; // <XSF_NSRSBH>销售方纳税人识别号</XSF_NSRSBH>
        private String xsf_mc; // <XSF_MC>销售方名称</XSF_MC>
        private String xsf_dzdh; // <XSF_DZDH>销售方地址、电话</XSF_DZDH>
        private String xsf_yhzh; // <XSF_YHZH>销售方银行账号</XSF_YHZH> 否
        private String gmf_nsrsbh; // <GMF_NSRSBH>购买方纳税人识别号</GMF_NSRSBH> 否
        private String gmf_mc; // <GMF_MC>购买方名称</GMF_MC>
        private String gmf_dzdh; // <GMF_DZDH>购买方地址、电话</GMF_DZDH> 否
        private String gmf_yhzh; // <GMF_YHZH>购买方银行账号</GMF_YHZH> 否
        private String kpr; // <KPR>开票人</KPR>
        private String skr; // <SKR>收款人</SKR> 否
        private String fhr; // <FHR>复核人</FHR> 否
        private String yfp_dm; // <YFP_DM>原发票代码</YFP_DM>红字发票时必须填写
        private String yfp_hm; // <YFP_HM>原发票号码</YFP_HM> 红字发票时必须填写
        private String jshj; // <JSHJ>价税合计</JSHJ>单位:元(2位小数)
        private String hjje; // <HJJE>合计金额</HJJE>不含税,单位:元(2位小数)
        private String hjse; // <HJSE>合计税额</HJSE>单位:元(2位小数)
        private String bmb_bbh;// <BMB_BBH>编码表版本号</BMB_BBH>目前为1.0
        private String qd_bz;// <QD_BZ>清单标志</QD_BZ>0:根据项目名称字数,自动产生清单,保持目前逻辑不变1:取清单对应票面内容字段打印到发票票面上,将项目信息 XMXX 打印到清单上。默认为 0。 1 暂不支持
        private String qdxmmc;// <QDXMMC>清单项目名称</QDXMMC>否 需要打印清单时对应发票票面项目名称清单标识( QD_BZ)为 1 时必填。为 0不进行处理。
        private String ghf_sj; // <GHF_SJ>购货方手机</GHF_SJ> 否
        private String ghf_email; // <GHF_EMAIL>购货方邮箱</GHF_EMAIL> 否
        private String bz; // <BZ>备注</BZ> 否
        private String card_no; // <BZ>用户卡号</BZ> 否
        private String create_time; // <BZ>交易时间</BZ> 否

    4. 调用航信税控进行打票

    public List<Map<String, String>> printForHeating(List<Invoice> invoices,
                PrintInvoiceEntity entity, PjInfo bluePjinfo) {
            List<Map<String, String>> returnMsg = new ArrayList<Map<String, String>>();
            String prjName = DeployConfigUtil.getJcDeployConfig().getProjectName();// 0:项目A   1:项目B
            // 将组装好的发票信息发往税控服务器进行电子发票打印
            String requestXml = null; // 请求报文
            String returnXml = null; // 请求报文对应的返回报文
            InvoiceReturnEntity invoiceReturnEntity = null; // 开票返回报文对应的实体
            PjItemEntity pjItemEntity = null; // 票据打印原始数据
            Invoice invoice = null; // 票据实体
            PjInfo pjInfo = null;
            for (int i = 0; i < invoices.size(); i++) {
    
                invoice = invoices.get(i);
                pjItemEntity = entity.getPjItemEntities().get(i);
                JcCustomer  jcCustomer = printInvoiceService.getJccustomer(entity,pjItemEntity.getCustomerId().toString());
                String userKindType=null;
                if (jcCustomer != null) {
                    userKindType = jcCustomer.getUserKindCode();
                }
                // 将开具的电子发票信息保存到收费系统票据信息表中
                pjInfo = ElnvoiceEntityUtil.createPjInfo(
                                    entity.getPrintCallingType(), entity.getIsPreprint(),
                                    invoice, bluePjinfo);
                pjInfoService.insert(pjInfo);
                //蓝票冲红
                if(bluePjinfo != null){
                    invoice.getSummary().setPjInfoId(bluePjinfo.getId());
                }else{
                    invoice.getSummary().setPjInfoId(pjInfo.getId());
                }
    
                if ("0".equals(prjName)) {
                    if (StringUtils.defaultString(invoice.getSummary().getYfp_dm()).length() > 0
                            && StringUtils.defaultString(invoice.getSummary().getYfp_hm()).length() > 0) {
                        // 封装航信电子发票所需报文--红冲
                        requestXml = LFEInvoiceXmlUtil.createHCEInvoiceXml(invoice,userKindType);
                    } else {
                        // 封装航信电子发票所需报文
                        requestXml = LFEInvoiceXmlUtil.createEInvoiceXml(invoice, userKindType);
                    }
    
                    // 请求航信开票接口开具报文
                    returnXml = EInvoiceWsUtil.eInvoice(requestXml);
                    // 解析返回报文
                    invoiceReturnEntity = LFElnvoiceEntityUtil.createInvoiceReturnEntity(returnXml);
                } else {
    
                    if (StringUtils.defaultString(invoice.getSummary().getYfp_dm()).length() > 0
                            && StringUtils.defaultString(invoice.getSummary().getYfp_hm()).length() > 0) {
                        // 封装航信电子发票所需报文--红冲
                        requestXml = EInvoiceXmlUtil.createHCEInvoiceXml(invoice);
                    } else {// 封装航信电子发票所需报文
                        requestXml = EInvoiceXmlUtil.createEInvoiceXml(invoice);
                    }
    
                    // 请求航信开票接口开具报文
                    returnXml = EInvoiceWsUtil.eInvoice(requestXml);
                    // 解析返回报文
                    invoiceReturnEntity = ElnvoiceEntityUtil.createInvoiceReturnEntity(returnXml);
                }
                if (!RETURN_CODE_SUCCESS
                        .equals(invoiceReturnEntity.getReturnCode())) {
                    
                    continue;
                }
                // 将开具的电子发票信息保存到收费系统票据信息表中
                pjInfo = ElnvoiceEntityUtil.updatePjInfo(pjInfo, invoiceReturnEntity);
                pjInfoService.updateById(pjInfo);
                // 记录开票明细
                printInvoiceService.savepjItem(pjInfo.getId(), pjItemEntity);
                // 挂上电子发票与热用户的关联关系
                printInvoiceService.savePjCustomerRelation(pjInfo.getId(),pjItemEntity);
                // 更新交易明细为已开票状态
                printInvoiceService.updateInvoiceStatusForHeating(entity.getPrintCallingType(), pjItemEntity);
                // 推送到财务,此处正常开票、补打、冲红、集体交费逐户打印、全部打印都调用
                printInvoiceService.insertRfglFinance(pjItemEntity, pjInfo, invoice);
                // 根据票据号请求电子发票下载地址
    /*          invoiceQueryEntity = ElnvoiceEntityUtil.createQueryInvoiceEntity(pjInfo);
                requestXml = EInvoiceXmlUtil.createQueryInvoiceXml(invoiceQueryEntity);
                returnXml = EInvoiceWsUtil.queryInvoice(requestXml);
                queryReturnEntity = ElnvoiceEntityUtil.createQueryReturnEntity(returnXml);*/
                // 封装前台返回信息
                Map<String, String> map = new HashMap<String, String>();
                map.put("fpdm", invoiceReturnEntity.getFp_dm());
                map.put("fphm", invoiceReturnEntity.getFp_hm());
                map.put("downloadUrl", invoiceReturnEntity.getPdfUrl());
                returnMsg.add(map);
                
                //下载pdf到本地
                if(StringUtils.isNotEmpty(invoiceReturnEntity.getPdfUrl())){
                    try {
                        downLoadByUrl(invoiceReturnEntity.getPdfUrl());
                    } catch (IOException e) {
                        System.err.println("电子发票- PDF下载失败!");
                        e.printStackTrace();
                    }
                }            
            }
            return returnMsg;
        }

    相关实体:

    public class InvoiceReturnEntity { //电子发票-请求开具发票返回报文对应的实体
    
        private String fpqqlsh; //<FPQQLSH>发票请求流水号</FPQQLSH>
        private String jqbh;//<JQBH>税控设备编号</JQBH>
        private String  fp_dm;//<FP_DM>发票代码</FP_DM>
        private String fp_hm;//<FP_HM>发票号码</FP_HM>
        private String kprq;//<KPRQ>开票日期</KPRQ>
        private String fp_mw;//<FP_MW>发票密文</FP_MW>
        private String jym;//<JYM>校验码</JYM>
        private String ewm;//<EWM>二维码</EWM>
        private String returnCode;//<RETURNCODE>返回代码</RETURNCODE>
        private String returnMsg;//<RETURNMSG>返回信息</RETURNMSG>
        
        private String ssyf;// 所属月份 
        private String kplx;// 开票类型1-正票 2-红票 
        private String hjbhsje;//  合计不含税金额
        private String kphjse;// 开票合计税额
        private String czdm;// 10-正常开具 20-红票
        private String pdfFile;// PDF文件 
        private String pdfUrl;// PDF下载路径 

    5. 封装航信电子发票所需报文——》发送到航信接口开具报文——》解析包含开票信息的返回报文

    5.1 生成电子发票开具报文

    public static String createEInvoiceXml(Invoice invoice, String userKindType){
            Document document = DocumentHelper.createDocument();
            document.setXMLEncoding("utf-8"); // 默认utf-8
            Element rootElement = getRoolElement(document, "");
            String  cdataXml =createEInvoiceCDATA(invoice, userKindType);
            
            //内部报文加密
            Base64Encoder encoder = new Base64Encoder();  
            String comment = encoder.encode(cdataXml.getBytes()); 
            Element  dataElement = rootElement.element("Data");
            dataElement.element("content").addText(comment);
            //xml文件"< >"禁止转义,保留<>样式的方法
            String xml = StringEscapeUtils.unescapeXml(document.asXML());
         
            return xml ;
        }
        

    5.2 调用税控开具发票接口

    public static String eInvoice(String wsXml){
            String methodName = "eInvoiceCodes";
            return EInvoiceWsUtil.invoke(methodName, wsXml);
        } 
    //调用远程服务接口的公共方法,获得包含开票信息的返回报文
    public static String invoke(String methodName, String wsXml){
            
            CloseableHttpClient httpclient = HttpClients.createDefault();  
            HttpPost httpPost = new HttpPost(webServiceUrl);// 创建httpPost     
            httpPost.setHeader("Accept", "text/xml");   
            httpPost.setHeader("Content-Type", "text/xml");  
            String charSet = "UTF-8";  
            StringEntity entity = new StringEntity(wsXml, charSet);  
            httpPost.setEntity(entity);          
            CloseableHttpResponse response = null;  
              
            try {            
                response = httpclient.execute(httpPost);
                   
                StatusLine status = response.getStatusLine();  
                int state = status.getStatusCode();  
                if (state == 200) {  
                    HttpEntity responseEntity = response.getEntity();  
                    String jsonString = EntityUtils.toString(responseEntity);  
                    System.out.println("---response----"+jsonString);
                    return jsonString;  
                }  
                else{  
                     System.err.print("请求返回:"+state+"("+webServiceUrl+")");  
                }  
            }  catch(IOException e){
                   e.printStackTrace();  
            }
            finally {  
                if (response != null) {  
                    try {  
                        response.close();  
                    } catch (IOException e) {  
                        e.printStackTrace();  
                    }  
                }  
                try {  
                    httpclient.close();  
                } catch (IOException e) {  
                    e.printStackTrace();  
                }  
            }         
            return null;  
        }  

    5.3 解析返回报文,将信息保存进返回报文实体类

    public static InvoiceReturnEntity createInvoiceReturnEntity(String returnXml){
            
            InvoiceReturnEntity entity = new InvoiceReturnEntity();
            try {
                Document document = DocumentHelper.parseText(returnXml);
                Element rootElement = document.getRootElement(); //business标签
                Element element = null;    
                Element  headElement = rootElement.element("interface");
                Element  rtnElement = headElement.element("returnStateInfo");
                String  rtnCode = rtnElement.element("returnCode").getTextTrim();
                Element  dataElement = rootElement.element("Data");
                 //开票成功返回code
             if("0000".equals(rtnCode)){
                     // base64解码
                    String cdataXml = dataElement.element("content").getTextTrim();
                    String bodyXml = base64Decoder(cdataXml);
                    Document bodyDoc = DocumentHelper.parseText(bodyXml);
                    Element bodyElement  = bodyDoc.getRootElement();    
                    
                    element = bodyElement.element("FPQQLSH");
                    entity.setFpqqlsh(element.getTextTrim());
                    
                    element = bodyElement.element("FP_DM");
                    entity.setFp_dm(element.getTextTrim());
                    
                    element = bodyElement.element("FP_HM");
                    entity.setFp_hm(element.getTextTrim());
                    
                    element = bodyElement.element("KPRQ");
                    entity.setKprq(element.getTextTrim());
                    
                    element = bodyElement.element("PDF_URL");
                    entity.setPdfUrl(element.getTextTrim());              
             }
                
                entity.setReturnCode(rtnCode);
                
                element = rtnElement.element("RETURNMESSAGE");
                entity.setReturnMsg(element.getTextTrim());
                
            
            } catch (DocumentException e) {
                System.err.println("电子发票-开具发票请求的返回报文解析失败!");
                e.printStackTrace();
            }
            
            return entity;
        }

    6. 从网络Url中下载发票信息的pdf文件

      public  void  downLoadByUrl(String urlStr) throws IOException{
            URL url = new URL(urlStr);
            String[] str= urlStr.split("/");
            String fileName= str[str.length-1]+".pdf";
            String savePath = "C://upload";
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            //设置超时间为3秒
            conn.setConnectTimeout(2*1000);
            //防止屏蔽程序抓取而返回403错误
            conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
            //得到输入流
            InputStream inputStream = conn.getInputStream();
            //获取自己数组
            byte[] getData = readInputStream(inputStream);
            //文件保存位置
            File saveDir = new File(savePath);
            if(!saveDir.exists()){
                saveDir.mkdir();
            }
            File file = new File(saveDir+File.separator+fileName);
            FileOutputStream fos = new FileOutputStream(file);
            fos.write(getData);
            if(fos!=null){
                fos.close();
            }
            if(inputStream!=null){
                inputStream.close();
            }
    
        }
        
        // 从输入流中获取字节数组
        public    byte[] readInputStream(InputStream inputStream) throws IOException {
            byte[] buffer = new byte[1024];
            int len = 0;
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            while((len = inputStream.read(buffer)) != -1) {
                bos.write(buffer, 0, len);
            }
            bos.close();
            return bos.toByteArray();
        }

    接口规范说明文档下载地址

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  • 原文地址:https://www.cnblogs.com/zjfjava/p/9492078.html
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