利用聚合接口实现Java查询身份证

大家应该都有在网上查询身份证的经历，那么它是如何实现的呢？今天小狼就利用聚合数据网(https://www.juhe.cn/htto)所提供的API接口实现简单的身份证信息查询。

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首先，在聚合数据网中找到身份证查询接口调用示例首页点击点击API找到免费数据 会发现有一个身份证查询，暂时是免费的点进去找到JAVA所对应的身份证查询示例代码即可直接将代码COPY下来即可

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建一个JavaWEB项目![项目结构图](http://img.blog.csdn.net/20171122180522790?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZ3VkdWRlbGFuZzIy/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)

package com.bin.idCard;import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;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 net.sf.json.JSONObject;/***身份证查询调用示例代码 － 聚合数据*在线接口文档：http://www.juhe.cn/docs/38**/public class IdCardDemo {    public static final String DEF_CHATSET = "UTF-8";    public static final int DEF_CONN_TIMEOUT = 30000;    public static final int DEF_READ_TIMEOUT = 30000;    public static String userAgent =  "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";    //配置您申请的KEY    public static final String APPKEY ="***************************";    //1.身份证信息查询    public static Object getRequest1(String cardNo,String dtype){        String result =null;        String url ="http://apis.juhe.cn/idcard/index";//请求接口地址        Map params = new HashMap();//请求参数            params.put("cardno", cardNo);//身份证号码            params.put("dtype", dtype);//返回数据格式：json或xml,默认json            params.put("key", APPKEY);//你申请的key        try {            result =net(url, params, "GET");            JSONObject object = JSONObject.fromObject(result);            if(object.getInt("error_code")==0){                System.out.println(object.get("result"));                return object.get("result");            }else{                System.out.println(object.get("error_code")+":"+object.get("reason"));                return object.get("error_code")+":"+object.get("reason");            }        } catch (Exception e) {            e.printStackTrace();        }        return null;    }    //2.身份证泄漏查询    public static void getRequest2(){        String result =null;        String url ="http://apis.juhe.cn/idcard/leak";//请求接口地址        Map params = new HashMap();//请求参数            params.put("cardno","");//身份证号码            params.put("dtype","");//返回数据格式：json或xml,默认json            params.put("key",APPKEY);//你申请的key        try {            result =net(url, params, "GET");            JSONObject object = JSONObject.fromObject(result);            if(object.getInt("error_code")==0){                System.out.println(object.get("result"));            }else{                System.out.println(object.get("error_code")+":"+object.get("reason"));            }        } catch (Exception e) {            e.printStackTrace();        }    }    //3.身份证挂失查询    public static void getRequest3(){        String result =null;        String url ="http://apis.juhe.cn/idcard/loss";//请求接口地址        Map params = new HashMap();//请求参数            params.put("cardno","");//身份证号码            params.put("dtype","");//返回数据格式：json或xml,默认json            params.put("key",APPKEY);//你申请的key        try {            result =net(url, params, "GET");            JSONObject object = JSONObject.fromObject(result);            if(object.getInt("error_code")==0){                System.out.println(object.get("result"));            }else{                System.out.println(object.get("error_code")+":"+object.get("reason"));            }        } catch (Exception e) {            e.printStackTrace();        }    }    public static void main(String[] args) {        Object object = getRequest1("610500198801218294", "json");        System.out.println(object);    }    /**     *     * @param strUrl 请求地址     * @param params 请求参数     * @param method 请求方法     * @return  网络请求字符串     * @throws Exception     */    public static String net(String strUrl, Map params,String method) throws Exception {        HttpURLConnection conn = null;        BufferedReader reader = null;        String rs = null;        try {            StringBuffer sb = new StringBuffer();            if(method==null || method.equals("GET")){                strUrl = strUrl+"?"+urlencode(params);            }            URL url = new URL(strUrl);            conn = (HttpURLConnection) url.openConnection();            if(method==null || method.equals("GET")){                conn.setRequestMethod("GET");            }else{                conn.setRequestMethod("POST");                conn.setDoOutput(true);            }            conn.setRequestProperty("User-agent", userAgent);            conn.setUseCaches(false);            conn.setConnectTimeout(DEF_CONN_TIMEOUT);            conn.setReadTimeout(DEF_READ_TIMEOUT);            conn.setInstanceFollowRedirects(false);            conn.connect();            if (params!= null && method.equals("POST")) {                try {                    DataOutputStream out = new DataOutputStream(conn.getOutputStream());                        out.writeBytes(urlencode(params));                } catch (Exception e) {                    // TODO: handle exception                }            }            InputStream is = conn.getInputStream();            reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));            String strRead = null;            while ((strRead = reader.readLine()) != null) {                sb.append(strRead);            }            rs = sb.toString();        } catch (IOException e) {            e.printStackTrace();        } finally {            if (reader != null) {                reader.close();            }            if (conn != null) {                conn.disconnect();            }        }        return rs;    }    //将map型转为请求参数型    public static String urlencode(Map<String,Object>data) {        StringBuilder sb = new StringBuilder();        for (Map.Entry i : data.entrySet()) {            try {                sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue()+"","UTF-8")).append("&");            } catch (UnsupportedEncodingException e) {                e.printStackTrace();            }        }        return sb.toString();    }}

这里的AppKey需要申请一下，这项功能暂时是免费的，以后很难说啊–

package com.bin.servlet;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.bin.idCard.IdCardDemo;public class IdCardServlet extends HttpServlet{    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        // TODO Auto-generated method stub        resp.setCharacterEncoding("utf-8");        //获取前台传入的身份证号        String cardNo = req.getParameter("cardNo");        Object obj = IdCardDemo.getRequest1(cardNo,"json");        System.out.println(obj.toString());        resp.getWriter().print(obj.toString());    }}

再从web.xml中配置一下servlet

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">  <display-name>idCard</display-name>  <servlet>    <servlet-name>IdCardServlet</servlet-name>    <servlet-class>com.bin.servlet.IdCardServlet</servlet-class>  </servlet>  <servlet-mapping>    <servlet-name>IdCardServlet</servlet-name>    <url-pattern>/IdCardServlet</url-pattern>  </servlet-mapping>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list></web-app>

我们再写一个JSP页面

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Insert title here</title><script type="text/javascript" src="js/jquery-3.2.1.js"></script><script type="text/javascript">    $(function(){        $("#btn").click(function(){            $.ajax({                url:"IdCardServlet",                data:{                    cardNo:$("#cardNo").val()                },                dataType:"json",                success:function(data){                    console.info(data);                    $("#area").html(data.area);                    $("#birthday").html(data.birthday);                    $("#sex").html(data.sex);                }            });        });    });</script></head><body>    <h1>测试工具</h1>    身份证号码:<input id="cardNo" name="cardNo"/><input id="btn" type="button" value="查询"><br><br>    发证地:<span id="area"></span><br><br>    出生日期:<span id="birthday"></span><br><br>    性别:<span id="sex"></span><br><br></body></html>

Run as Server
效果如下：

struts2的jar包完全可以替代那6个jar包，需要jar包可以留言