NC凭证接口（Java发送流和处理返回结果）
问题描述：
金融行业在系统模块分为财务和业务两个系统，我公司是负责业务模块系统，NC公司负责财务系统。但是财务有时候需要生成凭证，这时候就涉及业务模块了，我方就需要写NC凭证接口。这时候就需要三方交互好，确定规则。简单的说，就是我方发送一个正确的一个XML格式的字符给NC公司，然后NC公司会判断这个XML是不是符合规则，返回一个xml格式结果。好了，不多说，其实就是写一个Java代码，发送xml格式流和获取返回的xml格式的结果处理。
1 public String checkNCSendPzFlag(String sendXML) throws Exception { 2 String result = "";//returne标识 3 try { 4 /*********将xml发送到目标服务器*****************/ 5 //将xml保存在本地文件夹 6 String path = "F:\\xml_voucher\\IMP\\NC.xml"; 7 File file = new File("F:\\xml_voucher\\IMP"); 8 file.mkdirs();//创建父文件夹 9 File f2 = new File(path); 10 f2.createNewFile(); 11 FileOutputStream fos = new FileOutputStream(f2); 12 fos.write(sendXML.getBytes("utf-8"));//写入并设置编码格式 13 fos.flush(); 14 fos.close(); 15 16 //获取Servlet连接并设置请求的方法 17 String url = "http://10.68.3.5:8020/service/XChangeServlet?account=04&groupcode=1";//NC接口地址 18 URL realURL = new URL(url); 19 HttpURLConnection connection = (HttpURLConnection) realURL 20 .openConnection(); 21 connection.setDoOutput(true); 22 connection.setRequestProperty("Content-type", "text/xml"); 23 connection.setRequestMethod("POST"); 24 25 //将Document对象写入连接的输出流中 26 BufferedOutputStream out = new BufferedOutputStream(connection 27 .getOutputStream()); 28 BufferedInputStream input = new BufferedInputStream( 29 new FileInputStream(path)); 30 int length; 31 byte[] buffer = new byte[1000]; 32 while ((length = input.read(buffer, 0, 1000)) != -1) { 33 out.write(buffer, 0, length); 34 } 35 input.close(); 36 out.close(); 37 38 /***************从连接的输入流中取得回执信息***************/ 39 //输入流获取返回的xml，写入Document 40 InputStream inputStream = connection.getInputStream(); 41 InputStreamReader isr = new InputStreamReader(inputStream, "utf-8"); 42 BufferedReader bufreader = new BufferedReader(isr); 43 String xmlString = ""; 44 int c; 45 while ((c = bufreader.read()) != -1) { 46 System.out.print((char) c); 47 xmlString += (char) c; 48 } 49 input.close(); 50 Document resDoc = DocumentHelper.parseText(xmlString); 51 52 /************对回执结果的后续处理…************/ 53 //document转化为xml，并保存 54 TransformerFactory tFactory = TransformerFactory.newInstance(); 55 Transformer transformer = tFactory.newTransformer(); 56 DocumentSource source = new DocumentSource(resDoc); 57 transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); 58 //设置文档的换行与缩进 59 transformer.setOutputProperty(OutputKeys.INDENT, "YES"); 60 //设置日期格式 61 SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMddHHmmss"); 62 String resFile = "E:\\用友\\回执目录\\BkMsg_会计凭证_" 63 + fmt.format(new Date()) + ".xml"; 64 File resDis = new File("E:\\用友\\回执目录\\"); 65 if (!resDis.exists()) 66 resDis.mkdirs(); 67 StreamResult results = new StreamResult(new File(resFile)); 68 transformer.transform(source, results); 69 70 //jdom解析XML 71 SAXBuilder builder = new SAXBuilder(); 72 org.jdom.Document doc = builder.build(new File(resFile)); 73 Element foo = doc.getRootElement(); 74 List allChildren = foo.getChildren(); 75 for (int i = 0; i < allChildren.size(); i++) { 76 System.out.println(" 发送状态:" 77 + ((Element) allChildren.get(i)).getChild("resultcode").getText()); 78 System.out.print("测试信息" 79 + ((Element) allChildren.get(i)).getChild("resultdescription").getText()); 80 } 81 82 if (((Element) allChildren.get(0)).getChild("resultcode").getText() 83 .equals("1")) { 84 result = "导入成功!"; 85 } else { 86 result = "导入失败:" 87 + ((Element) allChildren.get(0)).getChild( 88 "resultdescription").getText(); 89 } 90 } catch (Exception e) { 91 // TODO: handle exception 92 result = "导入失败" + e.getMessage(); 93 e.printStackTrace(); 94 } 95 return result; 96 }
