怎么用java做一个快递查询类的接口?

准备做一个电商平台,想接入一个快递查询类的接口,能提供免费的代码么?要基于java平台的,谢谢!

这是我在快递网上找到的快递查询接口
下面是JAVA代码:
package com.kuaidi.openapi;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

public class Openapi {

private String app_key = "";

private String api_url = "http://api.kuaidi.com/openapi.html?";

private String show = "0";

private String muti = "0";

private String order = "desc";

/**
 * 您获得的快递网接口查询KEY。
 * 
 * @param app_key
 * 
 */
public void setApp_key(String app_key) {
    this.app_key = app_key;
}

/**
 * 设置数据返回类型。0: 返回 json 字符串; 1:返回 xml 对象
 * 
 * @param show
 * 
 */
public void setShow(String show) {
    this.show = show;
}

/**
 * 设置返回物流信息条目数, 0:返回多行完整的信息; 1:只返回一行信息
 * 
 * @param muti
 * 
 */
public void setMuti(String muti) {
    this.muti = muti;
}

/**
 * 设置返回物流信息排序。desc:按时间由新到旧排列; asc:按时间由旧到新排列
 * 
 * @param order
 * 
 */
public void setOrder(String order) {
    this.order = order;
}

/**
 * 
 * @param nu
 * @param exname
 * @return result
 */
public String query(String nu, String exname) {
    String sign = "id=" + app_key + "&com=" + exname + "&nu=" + nu + "&show=" + show + "&muti=" + muti + "&order="
            + order;
    String result = sendGet(api_url + sign);
    return result;
}

/**
 * 向指定URL发送GET方法的请求
 * 
 * @param url
 *            发送请求的URL
 * @return URL 所代表远程资源的响应结果
 */
private static String sendGet(String url) {
    String result = "";
    BufferedReader in = null;
    try {
        URL realUrl = new URL(url);
        // 打开和URL之间的连接
        URLConnection connection = realUrl.openConnection();
        // 设置通用的请求属性
        connection.setRequestProperty("accept", "*/*");
        connection.setRequestProperty("connection", "Keep-Alive");
        connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
        // 建立实际的连接
        connection.connect();

        // 定义 BufferedReader输入流来读取URL的响应
        in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String line;
        while ((line = in.readLine()) != null) {
            result += line;
        }
    } catch (Exception e) {
        System.out.println("发送GET请求出现异常!" + e);
        e.printStackTrace();
    }
    // 使用finally块来关闭输入流
    finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (Exception e2) {
            e2.printStackTrace();
        }
    }
    return result;
}

}

1.例子:
package com.kuaidi.openapi;

public class OpenapiExample {

private static String key="************";//官网申请的key

public static void main(String[] args){
    Openapi o = new Openapi();
    o.setApp_key(key);
    String result =o.query("111111", "quanfengkuaidi");
    System.out.println(result);
}

}

以上代码很简单吧,快递查询接口代码就全部写完了,希望对你有帮助,你可以去他们官网上直接申请,接入到你的电商平台上。

快递鸟API Java demo代,也可以去快递鸟网站下载,注册获取APIkey
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 java.security.MessageDigest;

/**
*

public class KdniaoSubscribeAPI {

//DEMO
public static void main(String[] args) {
    KdniaoSubscribeAPI api = new KdniaoSubscribeAPI();
    try {
        String result = api.orderTracesSubByJson();
        System.out.print(result);

    } catch (Exception e) {
        e.printStackTrace();
    }
}

//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";
//测试请求url
private String ReqURL = "http://testapi.kdniao.com:8081/api/dist";
//正式请求url
//private String ReqURL = "http://api.kdniao.com/api/dist";

/**
 * Json方式  物流信息订阅
 * @throws Exception 
 */
public String orderTracesSubByJson() throws Exception{
    String requestData="{'OrderCode': 'SF201608081055208281'," +
                            "'ShipperCode':'SF'," +
                            "'LogisticCode':'3100707578976'," +
                            "'PayType':1," +
                            "'ExpType':1," +
                            "'CustomerName':'',"+
                            "'CustomerPwd':''," +
                            "'MonthCode':''," +
                            "'IsNotice':0," +
                            "'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'}";

    Map<String, String> params = new HashMap<String, String>();
    params.put("RequestData", urlEncoder(requestData, "UTF-8"));
    params.put("EBusinessID", EBusinessID);
    params.put("RequestType", "1008");
    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 = base64Encode(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<String, String> 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<String, String> 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();
}

private static char[] base64EncodeChars = new char[] { 
        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 
        'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 
        'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 
        'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 
        'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 
        'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 
        'w', 'x', 'y', 'z', '0', '1', '2', '3', 
        '4', '5', '6', '7', '8', '9', '+', '/' }; 

public static String base64Encode(byte[] data) { 
    StringBuffer sb = new StringBuffer(); 
    int len = data.length; 
    int i = 0; 
    int b1, b2, b3; 
    while (i < len) { 
        b1 = data[i++] & 0xff; 
        if (i == len) 
        { 
            sb.append(base64EncodeChars[b1 >>> 2]); 
            sb.append(base64EncodeChars[(b1 & 0x3) << 4]); 
            sb.append("=="); 
            break; 
        } 
        b2 = data[i++] & 0xff; 
        if (i == len) 
        { 
            sb.append(base64EncodeChars[b1 >>> 2]); 
            sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]); 
            sb.append(base64EncodeChars[(b2 & 0x0f) << 2]); 
            sb.append("="); 
            break; 
        } 
        b3 = data[i++] & 0xff; 
        sb.append(base64EncodeChars[b1 >>> 2]); 
        sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]); 
        sb.append(base64EncodeChars[((b2 & 0x0f) << 2) | ((b3 & 0xc0) >>> 6)]); 
        sb.append(base64EncodeChars[b3 & 0x3f]); 
    } 
    return sb.toString(); 
}

}