Question

我要做的是创建一个JSONObject，其中包含一个由String组织的其他JSONObject数组？例如，我想创建一个JSONObject，其中包含一个对象数组，这些对象包含也按匹配日期组织的灯具

为您提供我想要实现的目标的视觉参考

JSONObject (JSONArray("Object 10/10/12" {(fixtures content)(fixtures content)}")
                     ("Object 11/10/12" {(fixtures content)(fixtures content)}"))

继承人到目前为止我所尝试过但却无法让它发挥作用

        String matchDate1 = null;
        JSONArray datesArray = null;
        JSONObject fixturesInfo = null;
        JSONArray fixturesInfoArray = null;
        String matchDateTemp = null;

        for(int f = 0; f < fixturesArray.length(); f++){

            JSONObject matchDateDict = fixturesArray.getJSONObject(f);
            matchDate1 = matchDateDict.getString("matchdate");
            JSONArray fixturesInfoDict = fixturesInfo.getJSONArray(matchDate1);

           if(fixturesInfoDict == null){
               tempArray = null;
           } else {
               tempArray = fixturesInfoDict;
           }

           if(matchDateTemp != matchDate1){
              fixturesInfoArray.put(matchDate1);
           }

          matchDateTemp = matchDate1;

          tempArray.put(fixturesArray.getJSONObject(f));
          fixturesInfo.put(matchDate1, tempArray);

        }




            Log.v("MyFix", "fixturesInfo = " + fixturesInfo);

        }catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

继承人json feed

{
    "code": 200,
    "error": null,
    "data": {
        "fixtures": [{
            "kickoff": "15:00:00",
            "matchdate": "2012-07-14",
            "homescore": null,
            "awayscore": null,
            "attendance": null,
            "homepens": null,
            "awaypens": null,
            "division_id": "5059",
            "division": "Testing 1",
            "comp": "LGE",
            "location": null,
            "fixture_note": null,
            "hometeam_id": "64930",
            "hometeam": "Team 1",
            "awayteam_id": "64933",
            "awayteam": "Team 4"
        }, {
            "kickoff": "15:00:00",
            "matchdate": "2012-07-14",
            "homescore": null,
            "awayscore": null,
            "attendance": null,
            "homepens": null,
            "awaypens": null,
            "division_id": "5059",
            "division": "Testing 1",
            "comp": "LGE",
            "location": null,
            "fixture_note": null,
            "hometeam_id": "64935",
            "hometeam": "Team 6",
            "awayteam_id": "64937",
            "awayteam": "Team 8"
        }, {
            "kickoff": "15:00:00",
            "matchdate": "2012-07-28",
            "homescore": null,
            "awayscore": null,
            "attendance": null,
            "homepens": null,
            "awaypens": null,
            "division_id": "5059",
            "division": "Testing 1",
            "comp": "LGE",
            "location": null,
            "fixture_note": null,
            "hometeam_id": "64930",
            "hometeam": "Team 1",
            "awayteam_id": "64931",
            "awayteam": "Team 2"
        }, {
            "kickoff": "15:00:00",
            "matchdate": "2012-07-28",
            "homescore": null,
            "awayscore": null,
            "attendance": null,
            "homepens": null,
            "awaypens": null,
            "division_id": "5059",
            "division": "Testing 1",
            "comp": "LGE",
            "location": null,
            "fixture_note": null,
            "hometeam_id": "64930",
            "hometeam": "Team 1",
            "awayteam_id": "64931",
            "awayteam": "Team 2"
        }]
    }
}

Answer 1

根据您的说法，您似乎试图从某些JSONArray中构建JSONObjects。这可能会有所帮助：

public void writeJSON() {
    JSONObject user = new JSONObject();
    JSONObject user2;
    user2 = new JSONObject();
    try {
        user.put("dish_id", "1");
        user.put("dish_custom", "2");
        user.put("quantity", "2");
        user.put("shared", "2");

        user2.put("dish_id", "2");
        user2.put("dish_custom", "2");
        user2.put("quantity", "4");
        user2.put("shared", "3");
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    JSONArray notebookUsers = new JSONArray();
    notebookUsers.put(user);
    notebookUsers.put(user2);
    System.out.println("the JSON ARRAY is"+notebookUsers);

这里有2个json对象被添加到1个JSONArray中。

System.out.println的输出将如下所示：

the JSON ARRAY is[{"shared":"2","dish_custom":"2","dish_id":"1","quantity":"2"},{"shared":"3","dish_custom":"2","dish_id":"2","quantity":"4"}]

你正在使用的字符串比较是不对的。

if(matchDateTemp != matchDate1)

你无法比较那样的字符串。你可以使用类似的东西：

if(!(matchDateTemp.equals(matchDate1)))

Answer 2

解析JSON的最佳方法是使用GSON。你要做的是

下载GSON jar并添加到您的构建路径
现在创建代表您的JSON数据结构的类
只需一行解析数据。 GSON将为您做到这一点

只用一行解析

String json = "{\"code\":200,\"error\":null,\"data\":{\"fixtures\":[{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64933\",\"awayteam\":\"Team 4\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64935\",\"hometeam\":\"Team 6\",\"awayteam_id\":\"64937\",\"awayteam\":\"Team 8\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"}]}}";

MatchDetails matchDetails=new Gson().fromJson(json,MatchDetails.class);
System.out.println(matchDetails);

现在MatchDetails课程中包含您需要的所有Fixture Lists
通过matchDetails.getData().getFixtures();

MatchDetails类

public class MatchDetails {

    //"code":200,"error":null

    private String code;
    private String error;
    private Fixtures data;
    /**
     * Gets the code.
     * 
     * @return <tt> the code.</tt>
     */
    public String getCode() {
        return code;
    }
    /**
     * Sets the code.
     *
     * @param code <tt> the code to set.</tt>
     */
    public void setCode(String code) {
        this.code = code;
    }
    /**
     * Gets the error.
     * 
     * @return <tt> the error.</tt>
     */
    public String getError() {
        return error;
    }
    /**
     * Sets the error.
     *
     * @param error <tt> the error to set.</tt>
     */
    public void setError(String error) {
        this.error = error;
    }
    /**
     * Gets the data.
     * 
     * @return <tt> the data.</tt>
     */
    public Fixtures getData() {
        return data;
    }
    /**
     * Sets the data.
     *
     * @param data <tt> the data to set.</tt>
     */
    public void setData(Fixtures data) {
        this.data = data;
    }
    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "MatchDetails [code=" + code + ", error=" + error + ", data="
                + data + "]";
    }


}

修改使用Fixtures函数编辑sortFixtures类。使用如下

String json = "{\"code\":200,\"error\":null,\"data\":{\"fixtures\":[{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-05-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64933\",\"awayteam\":\"Team 4\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64935\",\"hometeam\":\"Team 6\",\"awayteam_id\":\"64937\",\"awayteam\":\"Team 8\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-12-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-01-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"}]}}"; MatchDetails matchDetails=new Gson().fromJson(json,MatchDetails.class); System.out.println(matchDetails); System.out.println("Unsorted"); Fixtures fixturesObj = matchDetails.getData(); List<Fixture> fixtures = fixturesObj.getFixtures(); for (Fixture fixture : fixtures) { System.out.println(fixture); } System.out.println("Sorted"); fixtures = fixturesObj.sortFixtures(); for (Fixture fixture : fixtures) { System.out.println(fixture); }

Fixtures班

import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.List; /** * <br> * <div style="width:600px;text-align:justify;"> * * TODO: Class comment. * * </div> * <br> * @author Sunil Kumar E * */ public class Fixtures { private List<Fixture> fixtures; /** * Gets the fixtures. * * @return <tt> the fixtures.</tt> */ public List<Fixture> getFixtures() { return fixtures; } /** * Sets the fixtures. * * @param fixtures <tt> the fixtures to set.</tt> */ public void setFixtures(List<Fixture> fixtures) { this.fixtures = fixtures; } /* (non-Javadoc) * @see java.lang.Object#toString() */ @Override public String toString() { return "Fixtures [fixtures=" + fixtures + "]"; } public List<Fixture> sortFixtures() { Collections.sort(getFixtures(), new Comparator<Fixture>() { @Override public int compare(Fixture o1, Fixture o2) { SimpleDateFormat df1 = new SimpleDateFormat("yyyy-MM-dd"); Date date1 = null; Date date2 = null; try { date1 = df1 .parse(o1.getMatchdate()); date2 = df1 .parse(o2.getMatchdate()); } catch (ParseException e) { e.printStackTrace(); } if(date1==null || date2==null) return 0; if (date1.after(date2)) return 1; else if(date1.before(date2)) return -1; return 0; } }); return getFixtures(); } }

Fixture类

public class Fixture { //"kickoff":"15:00:00","matchdate":"2012-07-14","homescore":null, // "awayscore":null,"attendance":null,"homepens":null,"awaypens":null, // "division_id":"5059","division":"Testing 1","comp":"LGE","location":null, // "fixture_note":null,"hometeam_id":"64930","hometeam":"Team 1", // "awayteam_id":"64933","awayteam":"Team 4" private String kickoff; private String matchdate; private String homescore; private String awayscore; private String attendance; private String homepens; private String awaypens; private String division_id; private String division; private String comp; private String location; private String fixture_note; private String hometeam_id; private String hometeam; private String awayteam_id; private String awayteam; /** * Gets the kickoff. * * @return <tt> the kickoff.</tt> */ public String getKickoff() { return kickoff; } /** * Sets the kickoff. * * @param kickoff <tt> the kickoff to set.</tt> */ public void setKickoff(String kickoff) { this.kickoff = kickoff; } /** * Gets the matchdate. * * @return <tt> the matchdate.</tt> */ public String getMatchdate() { return matchdate; } /** * Sets the matchdate. * * @param matchdate <tt> the matchdate to set.</tt> */ public void setMatchdate(String matchdate) { this.matchdate = matchdate; } /** * Gets the homescore. * * @return <tt> the homescore.</tt> */ public String getHomescore() { return homescore; } /** * Sets the homescore. * * @param homescore <tt> the homescore to set.</tt> */ public void setHomescore(String homescore) { this.homescore = homescore; } /** * Gets the awayscore. * * @return <tt> the awayscore.</tt> */ public String getAwayscore() { return awayscore; } /** * Sets the awayscore. * * @param awayscore <tt> the awayscore to set.</tt> */ public void setAwayscore(String awayscore) { this.awayscore = awayscore; } /** * Gets the attendance. * * @return <tt> the attendance.</tt> */ public String getAttendance() { return attendance; } /** * Sets the attendance. * * @param attendance <tt> the attendance to set.</tt> */ public void setAttendance(String attendance) { this.attendance = attendance; } /** * Gets the homepens. * * @return <tt> the homepens.</tt> */ public String getHomepens() { return homepens; } /** * Sets the homepens. * * @param homepens <tt> the homepens to set.</tt> */ public void setHomepens(String homepens) { this.homepens = homepens; } /** * Gets the awaypens. * * @return <tt> the awaypens.</tt> */ public String getAwaypens() { return awaypens; } /** * Sets the awaypens. * * @param awaypens <tt> the awaypens to set.</tt> */ public void setAwaypens(String awaypens) { this.awaypens = awaypens; } /** * Gets the division_id. * * @return <tt> the division_id.</tt> */ public String getDivision_id() { return division_id; } /** * Sets the division_id. * * @param division_id <tt> the division_id to set.</tt> */ public void setDivision_id(String division_id) { this.division_id = division_id; } /** * Gets the division. * * @return <tt> the division.</tt> */ public String getDivision() { return division; } /** * Sets the division. * * @param division <tt> the division to set.</tt> */ public void setDivision(String division) { this.division = division; } /** * Gets the comp. * * @return <tt> the comp.</tt> */ public String getComp() { return comp; } /** * Sets the comp. * * @param comp <tt> the comp to set.</tt> */ public void setComp(String comp) { this.comp = comp; } /** * Gets the location. * * @return <tt> the location.</tt> */ public String getLocation() { return location; } /** * Sets the location. * * @param location <tt> the location to set.</tt> */ public void setLocation(String location) { this.location = location; } /** * Gets the fixture_note. * * @return <tt> the fixture_note.</tt> */ public String getFixture_note() { return fixture_note; } /** * Sets the fixture_note. * * @param fixture_note <tt> the fixture_note to set.</tt> */ public void setFixture_note(String fixture_note) { this.fixture_note = fixture_note; } /** * Gets the hometeam_id. * * @return <tt> the hometeam_id.</tt> */ public String getHometeam_id() { return hometeam_id; } /** * Sets the hometeam_id. * * @param hometeam_id <tt> the hometeam_id to set.</tt> */ public void setHometeam_id(String hometeam_id) { this.hometeam_id = hometeam_id; } /** * Gets the hometeam. * * @return <tt> the hometeam.</tt> */ public String getHometeam() { return hometeam; } /** * Sets the hometeam. * * @param hometeam <tt> the hometeam to set.</tt> */ public void setHometeam(String hometeam) { this.hometeam = hometeam; } /** * Gets the awayteam_id. * * @return <tt> the awayteam_id.</tt> */ public String getAwayteam_id() { return awayteam_id; } /** * Sets the awayteam_id. * * @param awayteam_id <tt> the awayteam_id to set.</tt> */ public void setAwayteam_id(String awayteam_id) { this.awayteam_id = awayteam_id; } /** * Gets the awayteam. * * @return <tt> the awayteam.</tt> */ public String getAwayteam() { return awayteam; } /** * Sets the awayteam. * * @param awayteam <tt> the awayteam to set.</tt> */ public void setAwayteam(String awayteam) { this.awayteam = awayteam; } /* (non-Javadoc) * @see java.lang.Object#toString() */ @Override public String toString() { return "Fixture [kickoff=" + kickoff + ", matchdate=" + matchdate + ", homescore=" + homescore + ", awayscore=" + awayscore + ", attendance=" + attendance + ", homepens=" + homepens + ", awaypens=" + awaypens + ", division_id=" + division_id + ", division=" + division + ", comp=" + comp + ", location=" + location + ", fixture_note=" + fixture_note + ", hometeam_id=" + hometeam_id + ", hometeam=" + hometeam + ", awayteam_id=" + awayteam_id + ", awayteam=" + awayteam + "]"; } }

Android将Json对象添加到Array中

2 个答案: