Android GSON/JSON反序列化并在适配器中显示

我已经陷入这个问题两周了，希望有人能帮我解决。提前谢谢

我想在活动中创建一个视图，该视图由标题视图和底部的列表视图组成。到目前为止，我已经成功地将数据从JSON获取到listView，因为大多数教程都只涉及JSON和listView

我的问题是，我如何才能得到下面的数据显示在标题上，一个简单的视图（非列表视图），甚至是我想要的视图

JSON文件

{
 "photos" : [
  {
     "thumbnail" : "http://www.myserver.com/01.jpg",
  },
  {
     "thumbnail" : "http://www.myserver.com/02.jpg",
  },
  {
     "thumbnail" : "http://www.myserver.com/03.jpg",
  },
],
"info" : [
  {
     "id" : "1",
     "description" : "My White Toyota",
     "country" : "Japan",
     "year" : "1982"
   }
 ];
"owners" : [
   {
     "ownerid" : "5633432",
     "name" : "Jackson",
     "year_own" : "1982-1985"
    },
    {
     "ownerid" : "76832",
     "name" : "Kurt",
     "year_own" : "1986-1995"
    },
    {
     "ownerid" : "236471",
     "name" : "Alma",
     "year_own" : "1999-2005"
    }
   ]
}

列表类

public class car_detail {
    private List<CAR_INFO_MODEL> photos;
    private List<CAR_INFO_MODEL> info;
    private List<CAR_INFO_MODEL> owners;

public List<CAR_INFO_MODEL> getPhotos(){
    return photos;
}
public void setPhotoList(List<CAR_INFO_MODEL> photos){
    this.photos = photos;
}

    public List<CAR_INFO_MODEL> getInfos(){
    return info;
}
public void setInfoList(List<CAR_INFO_MODEL> info){
    this.info = info;
}

    public List<CAR_INFO_MODEL> getOwners(){
    return owners;
}
public void setOwnerList(List<CAR_INFO_MODEL> owners){
    this.owners = owners;
}
}

activity类（我使用AsyncTask查询并获取JSON响应），我可以成功地从JSON获取info对象，但不知道如何获取照片和所有者

 public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.cardetail_layout);

    lv = (ListView) findViewById(R.id.list_cardetail);

    carArray = new ArrayList<CAR_INFO_MODEL>();
    carDetailAdapter = new carDetailAdapter(carActivity.this, R.layout.caritem_layout, infoArray);
            lv.setAdapter(carDetailAdapter);  
            try {
                new DealSync().execute("http://www.myserver.com/carsquery/");
            } catch(Exception e) {}
 }


 String json = client.getResponse();
 list = new Gson().fromJson(json, car_detail.class); 

 return list;

 protected void onPostExecute(car_detail infolist) {

        for(CAR_INFO_MODEL lm : infolist.getInfo())
        {
            infoArray.add(lm);
        }
        carDetailAdapter.notifyDataSetChanged();
    }

public void onCreate（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.cardetail_布局）；
lv=（ListView）findViewById（R.id.list\u cardetail）；
carArray=newarraylist（）；
carDetailAdapter=新的carDetailAdapter（carActivity.this、R.layout.caritem_layout、infoArray）；
低压设置适配器（carDetailAdapter）；
试一试{
新建DealSync（）。执行（“http://www.myserver.com/carsquery/");
}捕获（例外e）{}
}
字符串json=client.getResponse（）；
list=new Gson（）.fromJson（json，car_detail.class）；
退货清单；
受保护的void onPostExecute（车辆详细信息列表）{
对于（汽车信息车型lm:infolist.getInfo（））
{
infoArray.add（lm）；
}
notifyDataSetChanged（）；
}

适配器类（我可以获取要显示为单个项目列表的信息，但我不知道如何从数据中获取照片和所有者（底部列表视图）并将其显示。）

公共类carDetailAdapter扩展了ArrayAdapter{
智力资源；
字符串响应；
语境；
私人公寓；
公共carDetailAdapter（上下文上下文、int资源、列表对象）{
超级（上下文、资源、对象）；
这个资源=资源；
dInflater=LayoutInflater.from（上下文）；
}
静态类视窗夹{
文本视图描述；
}
公共视图getView（int位置、视图转换视图、视图组父视图）
{
视窗座；
汽车信息模型lm=（汽车信息模型）获取项目（位置）；
//夸大观点
if（convertView==null）
{
convertView=充气机充气（R.layout.carDetail_layout，空）；
holder=新的ViewHolder（）；
holder.description=（TextView）convertView.findViewById（R.id.cardesc）；
convertView.setTag（支架）；
}
其他的
{
holder=（ViewHolder）convertView.getTag（）；
}
holder.description.setText（lm.getDesc（））；
返回视图；
}
}

这听起来可能很复杂，希望有人能给我帮助。非常感谢您使用

或者，如果您真的想序列化/反序列化json。

使用

---

或者，如果您真的想序列化/反序列化json。

我注意到您的逻辑中存在一些问题

• 首先，您使用的JSON字符串不是JSON格式的。GSON解析器无法解析相同的字符串

问题：

• 照片的

  缩略图

  变量末尾还有一个逗号
• info对象以

  结尾而不是
  ，

更正的JSON字符串如下：

{
 "photos" : [
  {
     "thumbnail" : "http://www.myserver.com/01.jpg"
  },
  {
     "thumbnail" : "http://www.myserver.com/02.jpg"
  },
  {
     "thumbnail" : "http://www.myserver.com/03.jpg"
  }
],
"info" : [
  {
     "id" : "1",
     "description" : "My White Toyota",
     "country" : "Japan",
     "year" : "1982"
   }
 ],
"owners" : [
   {
     "ownerid" : "5633432",
     "name" : "Jackson",
     "year_own" : "1982-1985"
    },
    {
     "ownerid" : "76832",
     "name" : "Kurt",
     "year_own" : "1986-1995"
    },
    {
     "ownerid" : "236471",
     "name" : "Alma",
     "year_own" : "1999-2005"
    }
   ]
}

现在我发现的逻辑错误

• 您的

  CarDetails

  JSON数据包含三个对象。1.照片列表2。一个信息对象和3。业主名单
• 但是您的实现将其作为一个包含此类中所有数据的三个

  CAR\u INFO\u模型来处理。这样做，JSON中存在的所有分类都将丢失

• 这是你的问题

要解决这个问题，请将数据分类为JSON表示的数据。如下所示

照片

类

public class Photo {

    /**
     * Constructor for Photo.
     * @param thumbnail <tt></tt>
     */
    public Photo(String thumbnail) {
        super();
        this.thumbnail = thumbnail;
    }

    private String thumbnail;

    /**
     * Gets the thumbnail.
     * 
     * @return <tt> the thumbnail.</tt>
     */
    public String getThumbnail() {
        return thumbnail;
    }

    /**
     * Sets the thumbnail.
     *
     * @param thumbnail <tt> the thumbnail to set.</tt>
     */
    public void setThumbnail(String thumbnail) {
        this.thumbnail = thumbnail;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "Photo [thumbnail=" + thumbnail + "]";
    }



}

public class Info {
    /*"id" : "1",
     "description" : "My White Toyota",
     "country" : "Japan",
     "year" : "1982"

     * */

    private String id;
    /**
     * Constructor for Info.
     * @param id
     * @param description
     * @param country
     * @param year <tt></tt>
     */
    public Info(String id, String description, String country, String year) {
        super();
        this.id = id;
        this.description = description;
        this.country = country;
        this.year = year;
    }
    private String description;
    private String country;
    private String year;
    /**
     * Gets the id.
     * 
     * @return <tt> the id.</tt>
     */
    public String getId() {
        return id;
    }
    /**
     * Sets the id.
     *
     * @param id <tt> the id to set.</tt>
     */
    public void setId(String id) {
        this.id = id;
    }
    /**
     * Gets the description.
     * 
     * @return <tt> the description.</tt>
     */
    public String getDescription() {
        return description;
    }
    /**
     * Sets the description.
     *
     * @param description <tt> the description to set.</tt>
     */
    public void setDescription(String description) {
        this.description = description;
    }
    /**
     * Gets the country.
     * 
     * @return <tt> the country.</tt>
     */
    public String getCountry() {
        return country;
    }
    /**
     * Sets the country.
     *
     * @param country <tt> the country to set.</tt>
     */
    public void setCountry(String country) {
        this.country = country;
    }
    /**
     * Gets the year.
     * 
     * @return <tt> the year.</tt>
     */
    public String getYear() {
        return year;
    }
    /**
     * Sets the year.
     *
     * @param year <tt> the year to set.</tt>
     */
    public void setYear(String year) {
        this.year = year;
    }
    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "Info [id=" + id + ", description=" + description + ", country="
                + country + ", year=" + year + "]";
    }



}

public class CarDetail {

    private List<Photo> photos;
    private List<Info> info;
    private List<Owner> owners;
    /**
     * Gets the photos.
     * 
     * @return <tt> the photos.</tt>
     */
    public List<Photo> getPhotos() {
        return photos;
    }
    /**
     * Sets the photos.
     *
     * @param photos <tt> the photos to set.</tt>
     */
    public void setPhotos(List<Photo> photos) {
        this.photos = photos;
    }
    /**
     * Gets the info.
     * 
     * @return <tt> the info.</tt>
     */
    public List<Info> getInfo() {
        return info;
    }
    /**
     * Sets the info.
     *
     * @param info <tt> the info to set.</tt>
     */
    public void setInfo(List<Info> info) {
        this.info = info;
    }
    /**
     * Gets the owners.
     * 
     * @return <tt> the owners.</tt>
     */
    public List<Owner> getOwners() {
        return owners;
    }
    /**
     * Sets the owners.
     *
     * @param owners <tt> the owners to set.</tt>
     */
    public void setOwners(List<Owner> owners) {
        this.owners = owners;
    }
    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "CarDetail [photos=" + photos + ", info=" + info + ", owners="
                + owners + "]";
    }



}

“所有者”类

public class Owner {
    /*
     * "ownerid" : "5633432",
     "name" : "Jackson",
     "year_own" : "1982-1985"

     * */

    private String ownerid;
    /**
     * Constructor for Owner.
     * @param ownerid
     * @param name
     * @param year_own <tt></tt>
     */
    public Owner(String ownerid, String name, String year_own) {
        super();
        this.ownerid = ownerid;
        this.name = name;
        this.year_own = year_own;
    }
    private String name;
    private String year_own;
    /**
     * Gets the ownerid.
     * 
     * @return <tt> the ownerid.</tt>
     */
    public String getOwnerid() {
        return ownerid;
    }
    /**
     * Sets the ownerid.
     *
     * @param ownerid <tt> the ownerid to set.</tt>
     */
    public void setOwnerid(String ownerid) {
        this.ownerid = ownerid;
    }
    /**
     * Gets the name.
     * 
     * @return <tt> the name.</tt>
     */
    public String getName() {
        return name;
    }
    /**
     * Sets the name.
     *
     * @param name <tt> the name to set.</tt>
     */
    public void setName(String name) {
        this.name = name;
    }
    /**
     * Gets the year_own.
     * 
     * @return <tt> the year_own.</tt>
     */
    public String getYear_own() {
        return year_own;
    }
    /**
     * Sets the year_own.
     *
     * @param year_own <tt> the year_own to set.</tt>
     */
    public void setYear_own(String year_own) {
        this.year_own = year_own;
    }
    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "Owner [ownerid=" + ownerid + ", name=" + name + ", year_own="
                + year_own + "]";
    }


}

并使用以下这些类来解析和获取存储在每个对象中的详细信息（例如，照片、所有者和信息）

String json=“{”+
“\”照片\:[“+
"  {" + 
“\“缩略图\”：\”http://www.myserver.com/01.jpg\"" + 
"  }," + 
"  {" + 
“\“缩略图\”：\”http://www.myserver.com/02.jpg\"" + 
"  }," + 
"  {" + 
“\“缩略图\”：\”http://www.myserver.com/03.jpg\"" + 
"  }" + 
"]," + 
“\”信息\“：[”+
"  {" + 
“\“id\”：\“1\”，“+
“\”描述\:“\”我的白色丰田\“，“+
“‘国家’：‘日本’，”+
“\”年“：\”1982\”+
"   }" + 
" ]," + 
“\”所有者\:[“+
"   {" + 
“\”所有者ID\”：\“5633432\”，“+
“\”姓名\“：\”杰克逊\“，“+
““自己的年份”：“1982-1985”
"    }," + 
"    {" + 
“\'ownerid\”：\'76832\”，“+
“\”姓名“：\”库尔特“，“+
“自己的年份”：“1986-1995”
"    }," + 
"    {" + 
“\'ownerid\”：\'236471\”，“+
“\”姓名“：\”阿尔玛“，“+
““自己的年份”：“1999-2005”
"    }" + 
"   ]" + 
"}";
//将JSON字符串解析为CardDetail对象
CarDetail detail=new Gson（）.fromJson（json，CarDetail.class）；
//从CardDetail对象检索数据
List photos=detail.getPhotos（）；
System.out.println（“检索照片”）；
（照片：照片）{
系统输出打印（照片）；
}
List info=detail.getInfo（）；
System.out.println（“检索信息”）；
用于（信息2:Info）{
System.out.println（info2）；
}
System.out.println（“检索所有者”）；
List owners=detail.getOwners（）；
用于（所有者：所有者）{
System.out.println（所有者）；
}

---

现在在视图中使用检索到的数据。如果您需要任何帮助，请告诉我您的逻辑中有一些问题

• 首先，您使用的JSON字符串不是JSON格式的。GSON解析器无法解析相同的字符串

问题：

• 照片的

  缩略图

  变量末尾还有一个逗号

• public class Owner {
      /*
       * "ownerid" : "5633432",
       "name" : "Jackson",
       "year_own" : "1982-1985"
  
       * */
  
      private String ownerid;
      /**
       * Constructor for Owner.
       * @param ownerid
       * @param name
       * @param year_own <tt></tt>
       */
      public Owner(String ownerid, String name, String year_own) {
          super();
          this.ownerid = ownerid;
          this.name = name;
          this.year_own = year_own;
      }
      private String name;
      private String year_own;
      /**
       * Gets the ownerid.
       * 
       * @return <tt> the ownerid.</tt>
       */
      public String getOwnerid() {
          return ownerid;
      }
      /**
       * Sets the ownerid.
       *
       * @param ownerid <tt> the ownerid to set.</tt>
       */
      public void setOwnerid(String ownerid) {
          this.ownerid = ownerid;
      }
      /**
       * Gets the name.
       * 
       * @return <tt> the name.</tt>
       */
      public String getName() {
          return name;
      }
      /**
       * Sets the name.
       *
       * @param name <tt> the name to set.</tt>
       */
      public void setName(String name) {
          this.name = name;
      }
      /**
       * Gets the year_own.
       * 
       * @return <tt> the year_own.</tt>
       */
      public String getYear_own() {
          return year_own;
      }
      /**
       * Sets the year_own.
       *
       * @param year_own <tt> the year_own to set.</tt>
       */
      public void setYear_own(String year_own) {
          this.year_own = year_own;
      }
      /* (non-Javadoc)
       * @see java.lang.Object#toString()
       */
      @Override
      public String toString() {
          return "Owner [ownerid=" + ownerid + ", name=" + name + ", year_own="
                  + year_own + "]";
      }
  
  
  }
  

  public class CarDetail {
  
      private List<Photo> photos;
      private List<Info> info;
      private List<Owner> owners;
      /**
       * Gets the photos.
       * 
       * @return <tt> the photos.</tt>
       */
      public List<Photo> getPhotos() {
          return photos;
      }
      /**
       * Sets the photos.
       *
       * @param photos <tt> the photos to set.</tt>
       */
      public void setPhotos(List<Photo> photos) {
          this.photos = photos;
      }
      /**
       * Gets the info.
       * 
       * @return <tt> the info.</tt>
       */
      public List<Info> getInfo() {
          return info;
      }
      /**
       * Sets the info.
       *
       * @param info <tt> the info to set.</tt>
       */
      public void setInfo(List<Info> info) {
          this.info = info;
      }
      /**
       * Gets the owners.
       * 
       * @return <tt> the owners.</tt>
       */
      public List<Owner> getOwners() {
          return owners;
      }
      /**
       * Sets the owners.
       *
       * @param owners <tt> the owners to set.</tt>
       */
      public void setOwners(List<Owner> owners) {
          this.owners = owners;
      }
      /* (non-Javadoc)
       * @see java.lang.Object#toString()
       */
      @Override
      public String toString() {
          return "CarDetail [photos=" + photos + ", info=" + info + ", owners="
                  + owners + "]";
      }
  
  
  
  }
  

  String json = "{" + 
  " \"photos\" : [" + 
  "  {" + 
  "     \"thumbnail\" : \"http://www.myserver.com/01.jpg\"" + 
  "  }," + 
  "  {" + 
  "     \"thumbnail\" : \"http://www.myserver.com/02.jpg\"" + 
  "  }," + 
  "  {" + 
  "     \"thumbnail\" : \"http://www.myserver.com/03.jpg\"" + 
  "  }" + 
  "]," + 
  "\"info\" : [" + 
  "  {" + 
  "     \"id\" : \"1\"," + 
  "     \"description\" : \"My White Toyota\"," + 
  "     \"country\" : \"Japan\"," + 
  "     \"year\" : \"1982\"" + 
  "   }" + 
  " ]," + 
  "\"owners\" : [" + 
  "   {" + 
  "     \"ownerid\" : \"5633432\"," + 
  "     \"name\" : \"Jackson\"," + 
  "     \"year_own\" : \"1982-1985\"" + 
  "    }," + 
  "    {" + 
  "     \"ownerid\" : \"76832\"," + 
  "     \"name\" : \"Kurt\"," + 
  "     \"year_own\" : \"1986-1995\"" + 
  "    }," + 
  "    {" + 
  "     \"ownerid\" : \"236471\"," + 
  "     \"name\" : \"Alma\"," + 
  "     \"year_own\" : \"1999-2005\"" + 
  "    }" + 
  "   ]" + 
  "}";
  // parsing the JSON string to CardDetail object
   CarDetail detail=new Gson().fromJson(json,CarDetail.class);
  
   // retrieving data from the CardDetail object
   List<Photo> photos = detail.getPhotos();
   System.out.println("retrieving Photos");
   for (Photo photo : photos) {
      System.out.println(photo);
  }
  
   List<Info> info = detail.getInfo();
   System.out.println("retrieving Info");
   for (Info info2 : info) {
      System.out.println(info2);
  }
   System.out.println("retrieving Owners");
   List<Owner> owners = detail.getOwners();
   for (Owner owner : owners) {
      System.out.println(owner);
  }