How Android uses Fastjson

Fastjson is a JSON-processing toolkit for Alibaba Open source, including "serialization" and "deserialization" in two parts.

Tests show that Fastjson has a very fast performance beyond any other Java Json parser. Includes self-proclaimed fastest Jackjson, powerful, fully supported Java beans, collections, maps, dates, enums, support paradigm, support introspection; no dependencies, able to run directly above the Java SE 5.0 version; Support Android; Open source (Apache 2.0)

Fastjson Description: Https://github.com/Alibaba/fastjson/wiki/%E9%A6%96%E9%A1%B5

Note: The Fastjson has a Java version and an Android version, so don't get it wrong, and many blogs don't mention it.

Android Fastjson jar Download Address: Https://repo1.maven.org/maven2/com/alibaba/fastjson/1.2.11/fastjson-1.2.11.jar

Copy the jar package to the project's Libs directory, and Android automatically references

Common methods in Fastjson:

1, Person.java

Class Person {//name private String name = NULL;
	Age private int = 0;
	is a male private Boolean Ismale = true;

	The child's name is private list<string> childname = new arraylist<string> ();
	Public String GetName () {return name;
	public void SetName (String name) {this.name = name;
	public int getage () {return age;
	public void Setage (int age) {this.age = age;
	public Boolean Ismale () {return ismale;
	} public void Setmale (Boolean ismale) {this.ismale = Ismale;
	Public list<string> Getchildname () {return childname;
	public void Setchildname (list<string> childname) {this.childname = ChildName;
		public void Init () {name = ' Bob ';
		Age = 25;
		Ismale = true;
		Childname.add ("Tina");
		Childname.add ("Linda");
	Childname.add ("Tom");  @Override public String toString () {//url:http://www.bianceng.cn/os/extra/201608/50411.htm string str = "Name: "+ Name +", Ages: "+ age +", Sex: "+ (Ismale?") Male ":" female ")+ "\ n";
			if (childname!= null && childname.size ()!= 0) {str = str + "Number of children:" + childname.size () + "\ n";
			for (int i=0;i<childname.size (); i++) {str = str + "\ t" + i + "." + childname.get (i) + "\ n";
	} return str; }
}

2, Activity_fastjson.xml on a textview to display the results

3, Fastjsonactivity.java

 public class Fastjsonactivity extends activity {public TextView TextView;
		@Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
		
		Setcontentview (R.layout.activity_fastjson);
		
		TextView = (TextView) Findviewbyid (R.id.textview);
		person who = new person ();
		Person.init ();
		(1) Jsonobject personobject = (jsonobject) Json.tojson (person);
		AddText (Personobject.tostring ());
		(2) String personstr = json.tojsonstring (person);
		AddText (PERSONSTR);
		(3) person = Json.parseobject (personstr, Person.class);
		AddText (Person.tostring ());
		(4) String jsonarrstr = "[a\", \ "B\", "c\", \ "d\"] ";
		Jsonarray Jsonarr = Json.parsearray (JSONARRSTR);
		AddText (Jsonarr.tostring ());
		(5) list<string> strlist = Json.parsearray (Jsonarrstr, String.class);
	AddText (Strlist.tostring ());
	public void addtext (String str) {Textview.settext (Textview.gettext (). toString () + str + "\ n"); }
}

Output results:

{"ChildName": ["Tina", "Linda", "Tom"], "name": "Bob", "Age": "Ismale": true}

{"Age": "ChildName": ["Tina", "Linda", "Tom"], "Ismale": True, "name": "Bob"}

Name: Bob, Age: 25, Sex: Male

Number of children: 3

0. Tina

1. Linda

2. Tom

["A", "B", "C", "D"]

[A,b,c,d]