电子面单是一种通过热敏纸打印输出纸质×××的物流服务。通过热感应显示文字，打印速度比传统针式打印速度提升4~6倍。电子面单以接口形式嵌入到自己的系统、网站上，可以在自己的平台操作打印电子面单。
目前电子面单接口类型有：快递公司自行提供接口、菜鸟电子面单接口、快递鸟电子面单接口。菜鸟电子面单接口、快递鸟电子面单接口接入方式类似，都支持15家快递查询，其中菜鸟不支持顺丰电子面单打印，快递鸟不支持天天、快捷等快递电子面单打印。以下先做快递鸟电子面单接口的JAVA接入示例，后面逐渐介绍其他接口其他语言的对接方式。
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
import java.security.MessageDigest;
/**
*
* 快递鸟电子面单接口
*
* @技术QQ: 4009633321
* @技术QQ群: 200121393
* @see: http://www.kdniao.com/MiandanAPI.aspx
* @copyright: 深圳市快金数据技术服务有限公司
*
* ID和Key请到官网申请：http://www.kdniao.com/ServiceApply.aspx
*/
public class KdGoldAPIDemo {
//电商ID
private String EBusinessID="请到快递鸟官网申请http://www.kdniao.com/ServiceApply.aspx";
//电商加密私钥，快递鸟提供，注意保管，不要泄漏
private String AppKey="请到快递鸟官网申请http://www.kdniao.com/ServiceApply.aspx";
//请求url, 正式环境地址：http://api.kdniao.cc/api/Eorderservice
private String ReqURL="http://testapi.kdniao.cc:8081/api/Eorderservice";
/**
* Json方式 电子面单
* @throws Exception
*/
public String orderOnlineByJson() throws Exception{
String requestData= "{'OrderCode': '012657700387'," +
"'ShipperCode':'EMS'," +
"'PayType':1," +
"'ExpType':1," +
"'Cost':1.0," +
"'OtherCost':1.0," +
"'Sender':" +
"{" +
"'Company':'LV','Name':'Taylor','Mobile':'15018442396','ProvinceName':'上海','CityName':'上海','ExpAreaName':'青浦区','Address':'明珠路73号'}," +
"'Receiver':" +
"{" +
"'Company':'GCCUI','Name':'Yann','Mobile':'15018442396','ProvinceName':'北京','CityName':'北京','ExpAreaName':'朝阳区','Address':'三里屯街道雅秀大厦'}," +
"'Commodity':" +
"[{" +
"'GoodsName':'鞋子','Goodsquantity':1,'GoodsWeight':1.0}]," +
"'Weight':1.0," +
"'Quantity':1," +
"'Volume':0.0," +
"'Remark':'小心轻放'," +
"'IsReturnPrintTemplate':1}";
Map params = new HashMap();
params.put("RequestData", urlEncoder(requestData, "UTF-8"));
params.put("EBusinessID", EBusinessID);
params.put("RequestType", "1007");
String dataSign=encrypt(requestData, AppKey, "UTF-8");
params.put("DataSign", urlEncoder(dataSign, "UTF-8"));
params.put("DataType", "2");
String result=sendPost(ReqURL, params);
//根据公司业务处理返回的信息......
return result;
}
/**
* MD5加密
* @param str 内容
* @param charset 编码方式
* @throws Exception
*/
@SuppressWarnings("unused")
private String MD5(String str, String charset) throws Exception {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(str.getBytes(charset));
byte[] result = md.digest();
StringBuffer sb = new StringBuffer(32);
for (int i = 0; i < result.length; i++) {
int val = result[i] & 0xff;
if (val <= 0xf) {
sb.append("0");
}
sb.append(Integer.toHexString(val));
}
return sb.toString().toLowerCase();
}
/**
* base64编码
* @param str 内容
* @param charset 编码方式
* @throws UnsupportedEncodingException
*/
private String base64(String str, String charset) throws UnsupportedEncodingException{
String encoded = Base64.encode(str.getBytes(charset));
return encoded;
}
@SuppressWarnings("unused")
private String urlEncoder(String str, String charset) throws UnsupportedEncodingException{
String result = URLEncoder.encode(str, charset);
return result;
}
/**
* 电商Sign签名生成
* @param content 内容
* @param keyValue Appkey
* @param charset 编码方式
* @throws UnsupportedEncodingException ,Exception
* @return DataSign签名
*/
@SuppressWarnings("unused")
private String encrypt (String content, String keyValue, String charset) throws UnsupportedEncodingException, Exception
{
if (keyValue != null)
{
return base64(MD5(content + keyValue, charset), charset);
}
return base64(MD5(content, charset), charset);
}
/**
* 向指定 URL 发送POST方法的请求
* @param url 发送请求的 URL
* @param params 请求的参数集合
* @return 远程资源的响应结果
*/
@SuppressWarnings("unused")
private String sendPost(String url, Map params) {
OutputStreamWriter out = null;
BufferedReader in = null;
StringBuilder result = new StringBuilder();
try {
URL realUrl = new URL(url);
HttpURLConnection conn =(HttpURLConnection) realUrl.openConnection();
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
// POST方法
conn.setRequestMethod("POST");
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.connect();
// 获取URLConnection对象对应的输出流
out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
// 发送请求参数
if (params != null) {
StringBuilder param = new StringBuilder();
for (Map.Entry entry : params.entrySet()) {
if(param.length()>0){
param.append("&");
}
param.append(entry.getKey());
param.append("=");
param.append(entry.getValue());
System.out.println(entry.getKey()+":"+entry.getValue());
}
System.out.println("param:"+param.toString());
out.write(param.toString());
}
// flush输出流的缓冲
out.flush();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(
new InputStreamReader(conn.getInputStream(), "UTF-8"));
String line;
while ((line = in.readLine()) != null) {
result.append(line);
}
} catch (Exception e) {
e.printStackTrace();
}
//使用finally块来关闭输出流、输入流
finally{
try{
if(out!=null){
out.close();
}
if(in!=null){
in.close();
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
return result.toString();
}
}