<?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:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/path"
/>
<EditText
android:id="@+id/path"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="http://192.168.1.131:8080/videonews/index.jsp"
/>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/button"
/>
<!-- 带文本滚动条 -->
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/htmlsource"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</ScrollView>
</LinearLayout>
package cn.com.htmlviewer;
public class MainActivity extends Activity {
private EditText pathText;
private TextView htmlSource;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
pathText = (EditText) this.findViewById(R.id.path);
htmlSource = (TextView) this.findViewById(R.id.htmlsource);
Button button = (Button) this.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// 获取网页路径
String path = pathText.getText().toString();
try {
// service方法：根据路径获取网页
String html = PageService.getHtml(path);
htmlSource.setText(html);
} catch (Exception e) {
Toast.makeText(getApplicationContext(), R.string.error, 1)
.show();
}
}
});
}
}
package cn.com.service;
public class PageService {
/**
*
* 获取网页源代码
*
* @param path
*
* @return
*
* @throws MalformedURLException
*/
public static String getHtml(String path) throws Exception {
// 获取URL对象
URL url = new URL(path);
// 获得链接
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
// 设置链接超时时间
connection.setReadTimeout(5000);
// 设置请求方法
connection.setRequestMethod("GET");
// 取得输入流对象
if (connection.getResponseCode() == 200) {
byte[] data = StreamTool.read(connection.getInputStream());
// 二进制数据转字符串
return new String(data, "UTF-8");
}
return null;
}
}
不要忘了加权限：
<!-- 访问internet权限 -->
<uses-permission android:name="android.permission.INTERNET"/>
