调用NBA赛事API，完成对返回json数据的解析

这篇博客主要记录申请API，解析API返回的json数据，然后将需要的数据呈现到网页上。

一、申请聚合数据提供的NBA赛事的API。

二、创建自己的类，并复制API提供的接口方法。

package com.example.demo.match;

import com.example.demo.matchBean.ListObject;
import com.example.demo.teammatchBean.TeamListObject;
import com.example.demo.teammatchBean.TeamListObject2;
import net.sf.json.JSONObject;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class APItest {
    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 ="0dfc5ed27e20ed3b98f029ff9751a34c";

    //1.NBA常规赛赛程赛果
    public static List<ListObject> getRequest1(){
        String result =null;
        String url ="http://op.juhe.cn/onebox/basketball/nba";//请求接口地址
        Map params = new HashMap();//请求参数
        params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
        params.put("dtype","");//返回数据的格式,xml或json，默认json

        try {
            result =net(url, params, "GET");
            JSONObject object = JSONObject.fromObject(result);
            if(object.getInt("error_code")==0){
//                System.out.println(object.get("result"));
                return (new ResolveJson()).resolve1(result);
            }else{
                System.out.println(object.get("error_code")+":"+object.get("reason"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    //2.球队赛程赛事查询
    public static List<TeamListObject2> getRequest2(String teamname){
        String result =null;
        String url ="http://op.juhe.cn/onebox/basketball/team";//请求接口地址
        Map params = new HashMap();//请求参数
        params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
        params.put("dtype","");//返回数据的格式,xml或json，默认json
        params.put("team",teamname);//球队名称
        System.out.println(teamname);
        try {
            result =net(url, params, "GET");
            JSONObject object = JSONObject.fromObject(result);
            if(object.getInt("error_code")==0){
                return (new ResolveJson()).resolve2(result);
            }else{
                System.out.println(object.get("error_code")+":"+object.get("reason"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    //3.球队对战赛赛程查询
    public static List<TeamListObject2> getRequest3(String teamname1,String teamname2){
        String result =null;
        String url ="http://op.juhe.cn/onebox/basketball/combat";//请求接口地址
        Map params = new HashMap();//请求参数
        params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
        params.put("dtype","");//返回数据的格式,xml或json，默认json
        params.put("hteam",teamname1);//主队球队名称
        params.put("vteam",teamname2);//客队球队名称

        try {
            result =net(url, params, "GET");
            JSONObject object = JSONObject.fromObject(result);
            if(object.getInt("error_code")==0){
                return (new ResolveJson()).resolve2(result);
            }else{
                System.out.println(object.get("error_code")+":"+object.get("reason"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }



    public static void main(String[] args) {
        getRequest1();
    }

    /**
     *
     * @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();
    }
}

因为需要，我已经对原来的代码进行了稍微的改动，需要原有的可以看聚合数据提供的示例代码。

链接：点击打开链接

三、根据三个方法返回的json数据,对其进行解析，解析成java对象。

getRequest(）方法返回json对应的对象

package com.example.demo.matchBean;



import java.util.List;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:32 2018-04-24
 */
public class ListObject{
    public String title;
    public List<LiveObject> live;
    public List<LivelinkObject> livelink;
    public List<TrObject> tr;
    public List<LivelinkObject> bottomlink;

    public ListObject(String title, List<TrObject> tr) {
        this.title = title;
        this.tr = tr;
    }

    public ListObject(String title, List<LiveObject> live, List<LivelinkObject> livelink, List<TrObject> tr, List<LivelinkObject> bottomlink) {
        this.title = title;
        this.live = live;
        this.livelink = livelink;
        this.tr = tr;
        this.bottomlink = bottomlink;
    }
}

package com.example.demo.matchBean;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:33 2018-04-24
 */
public class LivelinkObject{
    public String text;
    public String url;
}

package com.example.demo.matchBean;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:34 2018-04-24
 */
public class LiveObject{
    public String title;
    public String player1;
    public String player2;
    public String player1info;
    public String player2info;
    public String player1logobig;
    public String player2logobig;
    public String player1url;
    public String player2url;
    public String player1location;
    public String player2location;
    public String status;
    public String score;
    public String liveurl;

    public LiveObject(String title, String player1, String player2, String player1info, String player2info, String player1logobig, String player2logobig, String player1url, String player2url, String player1location, String player2location, String status, String score, String liveurl) {
        this.title = title;
        this.player1 = player1;
        this.player2 = player2;
        this.player1info = player1info;
        this.player2info = player2info;
        this.player1logobig = player1logobig;
        this.player2logobig = player2logobig;
        this.player1url = player1url;
        this.player2url = player2url;
        this.player1location = player1location;
        this.player2location = player2location;
        this.status = status;
        this.score = score;
        this.liveurl = liveurl;

    }
}

package com.example.demo.matchBean;



import java.util.List;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:34 2018-04-24
 */
public class Result{
    public String title;
    public Statuslist statuslist;
    public List<ListObject> list;
    public List<TeammatchObject> teammatch;

    public Result(String title, Statuslist statuslist, List<ListObject> list, List<TeammatchObject> teammatch) {
        this.title = title;
        this.statuslist = statuslist;
        this.list = list;
        this.teammatch = teammatch;
    }
}

package com.example.demo.matchBean;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:34 2018-04-24
 */
public class Statuslist{
    public String st0;
    public String st1;
    public String st2;

    public Statuslist(String st0, String st1, String st2) {
        this.st0 = st0;
        this.st1 = st1;
        this.st2 = st2;
    }
}

package com.example.demo.matchBean;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:34 2018-04-24
 */
public class TeammatchObject{
    public String name;
    public String url;
}

package com.example.demo.matchBean;

/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 22:34 2018-04-24
 */
public class TrObject{
    public String time;
    public String player1;
    public String player2;
    public String player1logo;
    public String player2logo;
    public String player1logobig;
    public String player2logobig;
    public String player1url;
    public String player2url;
    public String link1url;
    public String m_link1url;
    public String link2text;
    public String link2url;
    public String m_link2url;
    public String status;
    public String score;
    public String link1text;

}

package com.example.demo.matchBean;


/**
 * @AUTHOR：wanderlustLee
 * @DATE:Create in 20:16 2018-04-24
 */
public class JsonString{
    public String reason;
    public Result result;
    public String error_code;

    public JsonString(String reason, Result result, String error_code) {
        this.reason = reason;
        this.result = result;
        this.error_code = error_code;
    }

    public String getReason() {
        return reason;
    }

    public void setReason(String reason) {
        this.reason = reason;
    }

    public Result getResult() {
        return result;
    }

    public void setResult(Result result) {
        this.result = result;
    }

    public String getError_code() {
        return error_code;
    }

    public void setError_code(String error_code) {
        this.error_code = error_code;
    }
}

四、类创建完成后就可以对json进行解析。

如果抛出了这种异常

说明没有json解析需要相关的jar包

包括：commons-beanutils-1.7.0.jar

commons-collections-3.1.jar

commons-lang-2.4.jar （使用过高版本也会报NestableRuntimeException）

commons-logging-1.1.1.jar

ezmorph-1.0.6.jar

json-lib-2.1.jar

log4j.jar

下载地址 点击打开链接

由于用到了json解析工具gson，还需要导入gson的jar包，去官网下载即可。

解析类：

package com.example.demo.match;

import com.example.demo.matchBean.JsonString;
import com.example.demo.matchBean.ListObject;
import com.example.demo.teammatchBean.TeamJsonString;
import com.example.demo.teammatchBean.TeamListObject2;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;



import java.util.ArrayList;
import java.util.List;


public class ResolveJson {
    public List<ListObject> resolve1(String json){
        Gson gson = new Gson();
        JsonString jsonString = gson.fromJson(json,JsonString.class);
        System.out.println(json);
//        System.out.println(jsonString.result.list.get(0).tr.get(0).player1);
        List<ListObject> matchlist = jsonString.result.list;
        return matchlist;
    }

    public List<TeamListObject2> resolve2(String json){
        System.out.println(json);
        TeamJsonString teamJsonString = (new Gson()).fromJson(json,TeamJsonString.class);

        JsonParser parse =new JsonParser();  //创建json解析器
        JsonObject json2=(JsonObject) parse.parse(json);
        System.out.println("reason:"+json2.get("reason").getAsString());
        System.out.println(json2.get("error_code").getAsString());
        JsonObject result=json2.get("result").getAsJsonObject();
        JsonArray array = result.get("list").getAsJsonArray();
        List<TeamListObject2> teammatchlist = new ArrayList<>();
        for(int i=0;i<array.size();i++){
            JsonObject subObject=array.get(i).getAsJsonObject();
            TeamListObject2 listObject2 = new TeamListObject2();
            listObject2.setTime(subObject.get("time").getAsString());
            listObject2.setScore(subObject.get("score").getAsString());
            listObject2.setPlayer1(subObject.get("player1").getAsString());
            listObject2.setPlayer2(subObject.get("player2").getAsString());
            listObject2.setLink1url(subObject.get("link1url").getAsString());
            listObject2.setLink2url(subObject.get("link2url").getAsString());
            teammatchlist.add(listObject2);
        }

        return teammatchlist;
    }
}

五、前端显示代码

<div class="tab-content">
                    <div class="tab-pane active" id="panel-3842">
                        <table class="table" th:if="${not #lists.isEmpty(matchlist)}">
                            <thead>
                            <tr class="success">
                                <th>
                                    对阵
                                </th>
                                <th>
                                    比赛时间
                                </th>
                                <th>
                                    比分
                                </th>
                                <th>
                                    比赛集锦/直播
                                </th>
                                <th>
                                    数据统计
                                </th>
                            </tr>
                            </thead>
                            <tbody>
                            <span th:each="match:${matchlist}" >
                                <tr th:each="matchtr:${match.tr}" class="warning">
                                    <td th:text="${matchtr.player1} + 'vs' + ${matchtr.player2}"></td>
                                    <td th:text="${matchtr.time}"></td>
                                    <td th:text="${matchtr.score}"></td>
                                    <td><a th:href="${matchtr.link1url}" >集锦/直播</a></td>
                                    <td><a th:href="${matchtr.link2url}" >数据统计</a></td>
                                </tr>
                            </span>

                            </tbody>
                        </table>
                    </div>

                    <div class="tab-pane" id="panel-110129">
                        <form class="form-search" action="/teammatch" method="post" id="form2" name="form2">
                            <input name="teamname" class="form-control" type="text" placeholder="请输入要查询的球队名称" />
                            <button type="submit" class="btn btn-info">查询</button>
                        </form>

                        <table class="table" th:if="${not #lists.isEmpty(teammatchList)}">
                            <thead>
                            <tr class="success">
                                <th>
                                    对阵
                                </th>
                                <th>
                                    比赛时间
                                </th>
                                <th>
                                    比分
                                </th>
                                <th>
                                    比赛集锦/直播
                                </th>
                                <th>
                                    数据统计
                                </th>
                            </tr>
                            </thead>
                            <tbody>
                            <tr th:each="teammatch:${teammatchList}" >

                                    <td th:text="${teammatch.player1} + 'vs' + ${teammatch.player2}"></td>
                                    <td th:text="${teammatch.time}"></td>
                                    <td th:text="${teammatch.score}"></td>
                                    <td><a th:href="${teammatch.link1url}" >集锦/直播</a></td>
                                    <td><a th:href="${teammatch.link2url}" >数据统计</a></td>

                            </tr>

                            </tbody>
                        </table>
                    </div>

                    <div class="tab-pane" id="panel-1101">
                        <form class="form-search" action="/teampk" method="post" id="form3" name="form3">
                            <input name="teamname1" class="form-control" type="text" placeholder="请输入要查询的球队名称" />
                            <input name="teamname2" class="form-control" type="text" placeholder="请输入要查询的球队名称" />
                            <button type="submit" class="btn btn-info">查询</button>
                        </form>

                        <table class="table" th:if="${not #lists.isEmpty(teampkList)}">
                            <thead>
                            <tr class="success">
                                <th>
                                    对阵
                                </th>
                                <th>
                                    比赛时间
                                </th>
                                <th>
                                    比分
                                </th>
                                <th>
                                    比赛集锦/直播
                                </th>
                                <th>
                                    数据统计
                                </th>
                            </tr>
                            </thead>
                            <tbody>
                            <tr th:each="teampk:${teampkList}" >

                                <td th:text="${teampk.player1} + 'vs' + ${teampk.player2}"></td>
                                <td th:text="${teampk.time}"></td>
                                <td th:text="${teampk.score}"></td>
                                <td><a th:href="${teampk.link1url}" >集锦/直播</a></td>
                                <td><a th:href="${teampk.link2url}" >数据统计</a></td>

                            </tr>

                            </tbody>
                        </table>
                    </div>

                </div>

效果：