android:通过url向网络端获取json格式数据并解析显示
第一步：通过httpclient向网络端获取到数据 返回jsonobject格式的数据
用到的对象：httpClient联网 httpget or httppost通过地址发出请求
httpresponse 接收idao返回数据 response.getEntity() EntityUtils进行字符串的处理
jsonobject进行数据的封装
第二部：定义方法进行相应的解析
解析数据 一般如果不只是一组数据 要用到jsonArray 通过jsonobject的getJSONArray()得到
通过对array的遍历 根据元素名称取出各组相应的数据
第三部：得到数据 并且进行填充
得到各个需要填充的空间 根据各自的方法进行数据的填充
布局文件：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TableLayout
android:id="@+id/info"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dip"
android:shrinkColumns="2"
android:stretchColumns="2" >
<TableRow android:background="@drawable/xx" >
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginLeft="5dip"
android:gravity="center_vertical"
android:text="姓名"
android:textColor="#424242"
android:textSize="18dp" />
<EditText
android:id="@+id/name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="25dip"
android:layout_marginLeft="20dip"
android:layout_marginRight="10dip"
android:background="@android:color/white"
android:gravity="top|left"
android:hint="点击输入"
android:textColor="#5c5c5c"
android:textSize="16dp" />
</TableRow>
<TableRow android:background="@drawable/xx" >
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginLeft="5dip"
android:gravity="center_vertical"
android:text="电话"
android:textColor="#424242"
android:textSize="18dp" />
<EditText
android:id="@+id/usermobile"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="25dip"
android:layout_marginLeft="20dip"
android:layout_marginRight="10dip"
android:background="@android:color/white"
android:gravity="top|left"
android:hint="点击输入"
android:textColor="#5c5c5c"
android:textSize="16dp" >
<requestFocus />
</EditText>
</TableRow>
<TableRow android:background="@drawable/xx" >
<TextView
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginLeft="5dip"
android:gravity="center_vertical"
android:text="手机"
android:textColor="#424242"
android:textSize="18dp" />
<EditText
android:id="@+id/userphone"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="25dip"
android:layout_marginLeft="20dip"
android:layout_marginRight="10dip"
android:background="@android:color/white"
android:gravity="top|left"
android:hint="点击输入"
android:textColor="#5c5c5c"
android:textSize="16dp" />
</TableRow>
</TableLayout>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="填充数据" />
</LinearLayout>
主类：
public class HttpActivity extends Activity {
EditText username;
EditText userorder;
EditText userphone;
public static String name;
public static String phone;
public static String ordernum;
Button get;
String url;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
username = (EditText) findViewById(R.id.name);
userorder = (EditText) findViewById(R.id.usermobile);
userphone = (EditText) findViewById(R.id.userphone);
get = (Button) findViewById(R.id.button);
url = "http://192.168.1.80:9090/ME3/jsp/token/sellexit.jsp";
get.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
try {
JSONObject jsonObject=doGet(url);
Log.i("HttpActivity001", jsonObject.toString());
JSONArray array = jsonObject.getJSONArray("data");
for (int i = 0; i < array.length(); i++) {
JSONObject jsonItem = array.getJSONObject(i);
name=(String) jsonItem.get("username");
ordernum=(String) jsonItem.get("ordernum");
phone=(String) jsonItem.get("phonenum");
Log.i("HttpActivity", name);
}
username.setText(name);
userorder.setText(ordernum);
userphone.setText(phone);
} catch (Exception e) {
// TODO: handle exception
}
// TODO Auto-generated method stub
}
});
}
网络连接获取数据：
public static JSONObject doGet(String url) {
try {
String result = null;
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet request = new HttpGet(url);
HttpResponse response = httpClient.execute(request);
result = EntityUtils.toString(response.getEntity());
JSONObject object = new JSONObject(result);
Log.i("HttpActivity", result);
return object;
} catch (Exception e) {
// TODO: handle exception
}
return null;
}
}
得到数据，解析：
public class JsonParser {
public static ListVideoEntity parse(String returnData) {
// String returnData = returnData();
ListVideoEntity lve = new ListVideoEntity();
try {
JSONObject jsonObject = new JSONObject(returnData);
String next = jsonObject.optString("next");
if (next == null || "".equals(next)) {
lve.setNext("0");
}
lve.setNext(next);
JSONArray jsonArray = new JSONArray(jsonObject.optString("videos"));
List<VideoEntity> feList = new ArrayList<VideoEntity>();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject itemObject = (JSONObject) jsonArray.opt(i);
VideoEntity fe = new VideoEntity();
//Log.d("D", "解析第：" + i + "条记录");
fe.setId(itemObject.getString("id"));
fe.setTitle(itemObject.getString("title"));
fe.setPlayurl(itemObject.getString("playurl"));
fe.setPlaytimes(itemObject.getString("playtimes"));
fe.setDescription(itemObject.getString("description"));
fe.setDuration(itemObject.getString("duration"));
fe.setChannel(itemObject.getString("channel"));
fe.setThumbnail(itemObject.getString("thumbnail"));
feList.add(fe);
}
lve.setVeList(feList);
} catch (Exception e) {
e.printStackTrace();
}
return lve;
}
}