Android native mode parsing Json,gson three-way Framework parsing JSON

Last Update:2016-08-01 Source: Internet

Author: User

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<pre> packagecom.example.administrator.test.Fragment.Login;Importandroid.support.v4.media.VolumeProviderCompat;Importandroid.support.v7.app.AppCompatActivity;Importandroid.os.Bundle;Importandroid.view.View;Importandroid.widget.EditText;Importcom.example.administrator.test.r;Importcom.google.gson.Gson;Importcom.google.gson.JsonArray;Importcom.google.gson.reflect.TypeToken;Importorg.json.JSONArray;Importorg.json.JSONException;Importorg.json.JSONObject;Importjava.util.List; public classTestActivity4extendsappcompatactivity {EditText et_3; @Overrideprotected voidonCreate (Bundle Savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (r.layout.activity_test4); Et_3=(EditText) Findviewbyid (r.id.et_3); } //native public voidBt1_onclick (View V)throwsjsonexception {String Strjson= "{\" id\ ": 1,\" name\ ": \" prawn \ "," + "\" price\ ": 12.3," + "\" imagepath\ ": \" http://192.168.10.16 5:8080/l05_server/images/f1.jpg\ "}"; //to convert from a JSON string to an objectJsonobject Jo =NewJsonobject (strjson); intId=jo.getint ("id"); String name=jo.getstring ("name"); DoublePrice=jo.getdouble ("price"); String ImagePath=jo.getstring ("imagePath"); Shopinfo Shopinfo=NewShopinfo (id,name,price,imagepath); Et_3.settext (shopinfo.tostring ()); } //Gson public voidBt5_onclick (View V) {//Gson way. JSON string into an objectString Strjson = "{\" id\ ": 1,\" name\ ": \" prawn \ "," + "\" price\ ": 12.3," + "\" imagepath\ ": \" http: 192.168.10.165:8080/l05_server/images/f1.jpg\ "}"; Shopinfo Shopinfo=NewGson (). Fromjson (strjson,shopinfo.class);//ReflectionEt_3.settext (shopinfo.tostring ()); } public voidbt2_onclick (View v) {String Strjson= "{\" id\ ": 1,\" name\ ": \" prawn \ "," + "\" price\ ": 12.3," + "\" imagepath\ ": \" http://192.168.10.16 5:8080/l05_server/images/f1.jpg\ "}"; Shopinfo Shopinfo=NewGson (). Fromjson (strjson,shopinfo.class);//ReflectionEt_3.settext (shopinfo.tostring ()); //convert object to JSON format stringShopinfo.setname ("lobster"); String str1=NewGson (). ToJson (shopinfo); Et_3.settext (str1); } //native Way to convert a JSON string into a collection public voidBt3_onclick (View V) {//Turn CollectionString strjson= "[{\" id\ ": 1,\" name\ ": \" prawn 1\ ", \" price\ ": 12.3," + "\" imagepath\ ": \" http://192.168. 10.165:8080/f1.jpg\ "}," + "{\" id\ ": 2, \" name\ ": \" prawn 2\ ", \" price\ ": 12.5," + "\" imagepath\ ": \" http://192.168.10.165:8080/f2.jpg\ "}]"; Try{jsonarray Jsonarray=NewJsonarray (strjson); String Str=""; for(intI=0;i<jsonarray.length (); i++) {jsonobject Jo=Jsonarray.getjsonobject (i); intId=jo.getint ("id"); String name=jo.getstring ("name"); DoublePrice=jo.getdouble ("price"); String ImagePath=jo.getstring ("imagePath"); Shopinfo Shopinfo=NewShopinfo (id,name,price,imagepath); STR+=shopinfo.tostring (); Et_3.settext (str); } }Catch(Exception E) {e.printstacktrace (); } } //Gson to convert a JSON string into a collection public voidbt4_onclick (View v) {String Strjson= "[{\" id\ ": 1,\" name\ ": \" prawn 1\ ", \" price\ ": 12.3," + "\" imagepath\ ": \" http://192.168.10.165:8080/f1.jpg\ "}," + "{\" id\ ": 2, \" name\ ": \" prawn 2\ ", \" price\ ": 12.5," + "\" imagepath\ ": \" http://192.168.10.165:80 80/f2.jpg\ "}]"; List<ShopInfo> list=NewGson (). Fromjson (strjson,NewTypetoken<list<shopinfo>>() {}.gettype ()); Et_3.settext (list.tostring ()); } //Gson turn the collection into a JSON string public voidbt6_onclick (View v) {String Strjson= "[{\" id\ ": 1,\" name\ ": \" prawn 1\ ", \" price\ ": 12.3," + "\" imagepath\ ": \" http://192.168.10.165:8080/f1.jpg\ "}," + "{\" id\ ": 2, \" name\ ": \" prawn 2\ ", \" price\ ": 12.5," + "\" imagepath\ ": \" http://192.168.10.165:80 80/f2.jpg\ "}]"; List<ShopInfo> list=NewGson (). Fromjson (strjson,NewTypetoken<list<shopinfo>>() {}.gettype ()); List.add (NewShopinfo (3, "lobster 3", 123.45, "lalallalalal")); String str1=NewGson (). ToJson (list); Et_3.settext (str1); }}</pre><pre><?XML version= "1.0" encoding= "utf-8"?><LinearLayoutxmlns:android= "http://schemas.android.com/apk/res/android"Android:layout_width= "match_parent"Android:layout_height= "match_parent"android:orientation= "vertical"> <ButtonAndroid:layout_width= "match_parent"Android:layout_height= "wrap_content"Android:text= "android Native Way to convert JSON string to object"Android:onclick= "bt1_onclick" /> <ButtonAndroid:layout_width= "match_parent"Android:layout_height= "wrap_content"Android:text= "gson way to convert JSON string to object"Android:onclick= "bt5_onclick" /> <ButtonAndroid:layout_width= "match_parent"Android:layout_height= "wrap_content"Android:text= "gson way to convert objects to JSON format"Android:onclick= "bt2_onclick" /> <ButtonAndroid:layout_width= "match_parent"Android:layout_height= "wrap_content"Android:text= "android Native turns JSON format array into object collection"Android:onclick= "bt3_onclick" /> <ButtonAndroid:layout_width= "match_parent"Android:layout_height= "wrap_content"Android:text= "gson way to convert a JSON format array into an object collection"Android:onclick= "bt4_onclick" /> <ButtonAndroid:layout_width= "match_parent"Android:layout_height= "wrap_content"Android:text= "gson way to convert object collection to JSON format"Android:onclick= "bt6_onclick" /> <EditTextAndroid:layout_width= "match_parent"Android:layout_height= "200dp"Android:id= "@+id/et_3"/></LinearLayout></pre>View CodeAndroid native mode parsing Json,gson three-way Framework parsing JSON

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