Question

我正在制作与C ++服务器一起运行并希望从服务器接收JSON对象的Java应用程序。基本上，我将LatLng（Latitude，Longtitude）发送到服务器并且它从Google Maps API返回我的元素，但问题是返回元素中包含转义字符，我可以＆＃39;用JSONObject解析它们。

@Override
protected void onPostExecute(string output) {
    super.onPostExecute(output);
    try {
        JSONObject data = new JSONObject(output);
        String test = data.getJSONObject("main_Points").getString("name");
        System.out.print(test);
    } catch(Exception ex) {
        ex.printStackTrace();
    }
}

这是我的JSON对象（错误：org.json.JSONException：字符579处未终止的对象）

{  
"main_Points":{  
  "final":{  
     "lat":42.502812,
     "lng":27.4691601,
     "name":"бул. „Сан Стефано“ 62, 8001 ж.к. Братя Миладинови, Бургас, България"
  },
  "start":{  
     "lat":42.4912504,
     "lng":27.4725683,
     "name":"бул. „Иван Вазов“ 1, 8000 Бургас Център, Бургас, България"
  }
},
"nearestPoints":{  
  "final":{  
     "lat":42.503294,
     "lng":27.468482,
     "name":"БСУ"
  },
  "start":{  
     "lat":42.490604,
     "lng":27.474128,
     "name":"Автогара Юг"
  }
},
"polylines":{  
  "final":"qilbGgatfDR`Bo@?eA\\",
  "middle":"}|ibGi`ufD@~@Ah@MVGMwB`@@bCG~CeFtBiBr@yApAeBl@sBr@aDbAiC|@cCr@uJfCaDz@{ElAoCl@OC_B^}Bh@Gm@m@cF_A@eA\\",
  "start":"iajbGqvtfDAaDvBa@FLLW@i@A_A"
}
}

Answer 1

您可以使用以下命令从json字符串创建对象：

http://www.jsonschema2pojo.org/

-----------------------------------com.example.Example.java-----------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Example {

@SerializedName("main_Points")
@Expose
private MainPoints mainPoints;
@SerializedName("nearestPoints")
@Expose
private NearestPoints nearestPoints;
@SerializedName("polylines")
@Expose
private Polylines polylines;

public MainPoints getMainPoints() {
return mainPoints;
}

public void setMainPoints(MainPoints mainPoints) {
this.mainPoints = mainPoints;
}

public NearestPoints getNearestPoints() {
return nearestPoints;
}

public void setNearestPoints(NearestPoints nearestPoints) {
this.nearestPoints = nearestPoints;
}

public Polylines getPolylines() {
return polylines;
}

public void setPolylines(Polylines polylines) {
this.polylines = polylines;
}

}

----------------------------------- com.example.Final.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Final {

@SerializedName("lat")
@Expose
private Double lat;
@SerializedName("lng")
@Expose
private Double lng;
@SerializedName("name")
@Expose
private String name;

public Double getLat() {
return lat;
}

public void setLat(Double lat) {
this.lat = lat;
}

public Double getLng() {
return lng;
}

public void setLng(Double lng) {
this.lng = lng;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

}

----------------------------------- com.example.Final_.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Final_ {

@SerializedName("lat")
@Expose
private Double lat;
@SerializedName("lng")
@Expose
private Double lng;
@SerializedName("name")
@Expose
private String name;

public Double getLat() {
return lat;
}

public void setLat(Double lat) {
this.lat = lat;
}

public Double getLng() {
return lng;
}

public void setLng(Double lng) {
this.lng = lng;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

}

----------------------------------- com.example.MainPoints.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class MainPoints {

@SerializedName("final")
@Expose
private Final _final;
@SerializedName("start")
@Expose
private Start start;

public Final getFinal() {
return _final;
}

public void setFinal(Final _final) {
this._final = _final;
}

public Start getStart() {
return start;
}

public void setStart(Start start) {
this.start = start;
}

}

----------------------------------- com.example.NearestPoints.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class NearestPoints {

@SerializedName("final")
@Expose
private Final_ _final;
@SerializedName("start")
@Expose
private Start_ start;

public Final_ getFinal() {
return _final;
}

public void setFinal(Final_ _final) {
this._final = _final;
}

public Start_ getStart() {
return start;
}

public void setStart(Start_ start) {
this.start = start;
}

}

----------------------------------- com.example.Polylines.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Polylines {

@SerializedName("final")
@Expose
private String _final;
@SerializedName("middle")
@Expose
private String middle;
@SerializedName("start")
@Expose
private String start;

public String getFinal() {
return _final;
}

public void setFinal(String _final) {
this._final = _final;
}

public String getMiddle() {
return middle;
}

public void setMiddle(String middle) {
this.middle = middle;
}

public String getStart() {
return start;
}

public void setStart(String start) {
this.start = start;
}

}

----------------------------------- com.example.Start.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Start {

@SerializedName("lat")
@Expose
private Double lat;
@SerializedName("lng")
@Expose
private Double lng;
@SerializedName("name")
@Expose
private String name;

public Double getLat() {
return lat;
}

public void setLat(Double lat) {
this.lat = lat;
}

public Double getLng() {
return lng;
}

public void setLng(Double lng) {
this.lng = lng;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

}

----------------------------------- com.example.Start_.java ----- ------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Start_ {

@SerializedName("lat")
@Expose
private Double lat;
@SerializedName("lng")
@Expose
private Double lng;
@SerializedName("name")
@Expose
private String name;

public Double getLat() {
return lat;
}

public void setLat(Double lat) {
this.lat = lat;
}

public Double getLng() {
return lng;
}

public void setLng(Double lng) {
this.lng = lng;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

}

并且

 @Override
    protected void onPostExecute(string output) {
        super.onPostExecute(output);
        try {
            JSONObject data = new JSONObject(output);
            Gson g = new Gson();
            Example example = g.fromJson(data.toString(), Example.class);

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

您将获得Example对象中的所有内容。

我希望它能帮到你解决问题！

Java JSON Parse文字字符串

1 个答案: