Step One: The page returns JSON data.
Make some simple changes to the json.php code for this space log, "PHP and Ajax Simple implementations", as follows: code echo $_get[' Jsoncallback ']. ' ('. Custom_json::encode ($big _test) ';
instead echo $_get[' Jsoncallback '].custom_json::encode ($big _test);
Save the file as jsondata.php.
Step two: Write the Android code.
1. Write the contact class, set the set and get methods.
Package com.domain;
public class Contact {
private String name;
private int age;
private int sex;
Private Double height;
Private Boolean Is_human;
private string string;
Public contact () {}
Public Contact (String name, int. age, int sex, Double height,
Boolean Is_human, string string) {
THIS.name = name;
This.age = age;
This.sex = sex;
This.height = height;
This.is_human = Is_human;
this.string = string;
}
Public String GetName () {
return name;
}
public void SetName (String name) {
THIS.name = name;
}
public int getage () {
return age;
}
public void Setage (int.) {
This.age = age;
}
public int Getsex () {
return sex;
}
public void setsex (int sex) {
This.sex = sex;
}
Public Double getheight () {
return height;
}
public void SetHeight (Double height) {
This.height = height;
}
public Boolean Isis_human () {
return Is_human;
}
public void Setis_human (Boolean Is_human) {
This.is_human = Is_human;
}
Public String getString () {
return string;
}
public void SetString (string string) {
this.string = string;
}
}
2. Write the input Stream processing tool class Streamtools.
Package com.shao.utils;
Import Java.io.ByteArrayOutputStream;
Import Java.io.InputStream;
public class Streamtools {
public static byte[] Readinputstream (InputStream instream) throws exception{
Bytearrayoutputstream OutStream = new Bytearrayoutputstream ();
byte[] buf = new byte[1024];
int len = 0;
while (len = Instream.read (BUF))! =-1)
{
Outstream.write (buf, 0, Len);
}
byte[] data = Outstream.tobytearray ();//binary data for Web pages
Outstream.close ();
Instream.close ();
return data;
}
}
3. Write the Android layout file main.xml.
<?xml version= "1.0" encoding= "Utf-8"?>
<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
android:orientation= "Vertical"
Android:layout_width= "Fill_parent"
android:layout_height= "Fill_parent"
>
<textview
Android:id= "@+id/name"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
<listview
Android:id= "@+id/listview"
Android:layout_width= "Fill_parent"
android:layout_height= "Wrap_content"
/>
</LinearLayout>
New layout file Item.xml.
<?xml version= "1.0" encoding= "Utf-8"?>
<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
android:orientation= "Vertical"
Android:layout_width= "Fill_parent"
android:layout_height= "Fill_parent"
>
<textview
Android:id= "@+id/name"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
<textview
Android:id= "@+id/sex"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
<textview
Android:id= "@+id/age"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
<textview
Android:id= "@+id/height"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
<textview
Android:id= "@+id/is_human"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
<textview
Android:id= "@+id/string"
Android:layout_width= "100dip"
android:layout_height= "Wrap_content"
/>
</LinearLayout>
Add the following line to the String.xml:
<string name= "Error" >net error</string>
4. Write the business implementation class.
Package Com.shao;
Import Java.io.InputStream;
Import java.net.HttpURLConnection;
Import Java.net.URL;
Import java.util.ArrayList;
Import java.util.List;
Import Org.json.JSONArray;
Import Org.json.JSONObject;
Import Com.domain.Contact;
Import Com.shao.utils.StreamTools;
public class MyService {
public static list<contact> Getlastcontact () throws Throwable
{
String Path = "http://192.168.1.100:8080/WebContent/testjson/jsondata.php";
list<contact> contacts = new arraylist<contact> ();
URL url = new URL (path);
HttpURLConnection conn = (httpurlconnection) url.openconnection ();
Conn.setconnecttimeout (5*1000);
Conn.setrequestmethod ("GET");
InputStream instream = Conn.getinputstream ();
byte[] data = Streamtools.readinputstream (instream);
String json = new string (data);
Jsonarray array = new Jsonarray (JSON);
for (int i=0;i<array.length (); i++)
{
Jsonobject item = array.getjsonobject (i);
Contact Contact = new Contact (item.getstring ("name"), Item.getint ("Age"), Item.getint ("Sex"), item.getdouble ("height" ), Item.getboolean ("Is_human"), Item.getstring ("string"));
Contacts.add (contact);
}
return contacts;
}
}
5. Write the main activity class.
Package Com.shao;
Import java.util.ArrayList;
Import Java.util.HashMap;
Import java.util.List;
Import Com.domain.Contact;
Import android.app.Activity;
Import Android.os.Bundle;
Import Android.util.Log;
Import Android.widget.ListView;
Import Android.widget.SimpleAdapter;
Import Android.widget.Toast;
public class Testxml extends Activity {
/** called when the activity is first created. */
@Override
public void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.main);
try {
list<contact> contacts = Myservice.getlastcontact ();
list
ListView ListView = (ListView) Findviewbyid (R.id.listview);
for (contact contact:contacts)
{
hashmap<string,object> item = new hashmap<string,object> ();
Item.put ("Name", Contact.getname ());
Item.put ("Sex", contact.getsex ());
Item.put ("Age", Contact.getage ());
Item.put ("Height", contact.getheight ());
Item.put ("Is_human", Contact.isis_human ());
Item.put ("string", contact.getstring ());
Data.add (item);
}
Simpleadapter adapter = new Simpleadapter (this, data, R.layout.item,
New string[]{"name", "Sex", "age", "height", "Is_human", "String"},
New Int[]{r.id.name, R.id.sex, R.id.age, R.id.height, R.id.is_human, r.id.string});
Listview.setadapter (adapter);
} catch (Throwable e) {
LOG.E ("Shao", e.tostring ());
Toast.maketext (This, r.string.error, 1). Show ();
}
}
}
6. Turn on the access network feature.
<uses-permission android:name= "Android.permission.INTERNET"/>
Step three test.
