在网结赛口 htp-l192.168.1.100.8080/newsjretnewslist 中提供了如下所示的 1ON 囊組德式的返回数据: [[id:1001,"utie":"程序员因写代码太亂被系害","detai":"凶手是死者同奪, 维护死者代码时完全看不重而箱下茶 手"," comment":16359,"image":"htp-//192.168.1.100.8080/news/images/6.ipg) 请编写程序, 访间该接口获取缴播, 解析后将数据显示到界面的控件上, 同时将數据保存 廉中.
时间: 2023-07-08 13:41:09 浏览: 86
以下是一个简单的Android代码示例,用于从指定URL获取JSON数据并将其解析并显示在ListView上:
```java
public class MainActivity extends AppCompatActivity {
private ListView listView;
private List<News> newsList = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = findViewById(R.id.list_view);
new GetDataTask().execute("http://192.168.1.100:8080/news/newslist");
// TODO: 将数据保存到本地
}
private void showData(List<News> newsList) {
NewsAdapter adapter = new NewsAdapter(this, newsList);
listView.setAdapter(adapter);
}
private class GetDataTask extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... urls) {
String result = "";
try {
URL url = new URL(urls[0]);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
if (connection.getResponseCode() == 200) {
InputStream in = connection.getInputStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len;
while ((len = in.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
result = out.toString();
in.close();
out.close();
}
connection.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
@Override
protected void onPostExecute(String result) {
try {
JSONArray jsonArray = new JSONArray(result);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
News news = new News();
news.setId(jsonObject.getInt("id"));
news.setTitle(jsonObject.getString("title"));
news.setContent(jsonObject.getString("content"));
news.setCommentCount(jsonObject.getInt("comment"));
news.setImageUrl(jsonObject.getString("image"));
newsList.add(news);
}
showData(newsList);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
```
这里使用了AsyncTask来进行网络请求和数据的解析,并将解析后的数据通过自定义的Adapter显示在ListView上。在TODO处,可以将数据保存到本地。这里只是一个简单的示例,实际应用中还需要考虑异常情况和网络请求的优化等问题。
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