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程序员001 2013-06-03
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结贴给分不纠结
忘世麒麟 2013-06-03
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那就祝你好运！
程序员001 2013-06-03
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这个方法是可行的，非常实用
程序员001 2013-06-03
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这个方法十分可行
攃肩洏過 2013-06-03
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是获得网页内容的数据吧？我们的思路是用webview加上javascript，这些都在一个activity里实现，具体的网页我们用assert中存的静态网页然后通过点击链接去获取其他网页的连接。
忘世麒麟 2013-06-03
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参考如下代码：
01.//第一种
02./**获取参数(ArrayList<NameValuePair> nameValuePairs,String url)后post给远程服务器
03. * 将获得的返回结果(String)返回给调用者
04. * 本函数适用于查询数量较少的时候
05. * Chen.Zhidong
06. * 2011-02-15*/
07.public String posturl(ArrayList<NameValuePair> nameValuePairs,String url){
08. String result = "";
09. String tmp= "";
10. InputStream is = null;
11. try{
12. HttpClient httpclient = new DefaultHttpClient();
13. HttpPost httppost = new HttpPost(url);
14. httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
15. HttpResponse response = httpclient.execute(httppost);
16. HttpEntity entity = response.getEntity();
17. is = entity.getContent();
18. }catch(Exception e){
19. return "Fail to establish http connection!";
20. }
21.
22. try{
23. BufferedReader reader = new BufferedReader(new InputStreamReader(is,"utf-8"));
24. StringBuilder sb = new StringBuilder();
25. String line = null;
26. while ((line = reader.readLine()) != null) {
27. sb.append(line + "\n");
28. }
29. is.close();
30.
31. tmp=sb.toString();
32. }catch(Exception e){
33. return "Fail to convert net stream!";
34. }
35.
36. try{
37. JSONArray jArray = new JSONArray(tmp);
38. for(int i=0;i<jArray.length();i++){
39. JSONObject json_data = jArray.getJSONObject(i);
40. Iterator<?> keys=json_data.keys();
41. while(keys.hasNext()){
42. result += json_data.getString(keys.next().toString());
43. }
44. }
45. }catch(JSONException e){
46. return "The URL you post is wrong!";
47. }
48.
49. return result;
50.}
51.
52.//第二种
53./**获取参数指定的网页代码，将其返回给调用者，由调用者对其解析
54. * 返回String
55. * Chen.Zhidong
56. * 2011-02-15*/
57.public String posturl(String url){
58. InputStream is = null;
59. String result = "";
60.
61. try{
62. HttpClient httpclient = new DefaultHttpClient();
63. HttpPost httppost = new HttpPost(url);
64. HttpResponse response = httpclient.execute(httppost);
65. HttpEntity entity = response.getEntity();
66. is = entity.getContent();
67. }catch(Exception e){
68. return "Fail to establish http connection!"+e.toString();
69. }
70.
71. try{
72. BufferedReader reader = new BufferedReader(new InputStreamReader(is,"utf-8"));
73. StringBuilder sb = new StringBuilder();
74. String line = null;
75. while ((line = reader.readLine()) != null) {
76. sb.append(line + "\n");
77. }
78. is.close();
79.
80. result=sb.toString();
81. }catch(Exception e){
82. return "Fail to convert net stream!";
83. }
84.
85. return result;
86.}
87.
88.//第三种
89./**获取指定地址的网页数据
90. * 返回数据流
91. * Chen.Zhidong
92. * 2011-02-18*/
93.public InputStream streampost(String remote_addr){
94. URL infoUrl = null;
95. InputStream inStream = null;
96. try {
97. infoUrl = new URL(remote_addr);
98. URLConnection connection = infoUrl.openConnection();
99. HttpURLConnection httpConnection = (HttpURLConnection)connection;
100. int responseCode = httpConnection.getResponseCode();
101. if(responseCode == HttpURLConnection.HTTP_OK){
102. inStream = httpConnection.getInputStream();
103. }
104. } catch (MalformedURLException e) {
105. // TODO Auto-generated catch block
106. e.printStackTrace();
107. } catch (IOException e) {
108. // TODO Auto-generated catch block
109. e.printStackTrace();
110. }
111. return inStream;
112.}
macrojj 2013-06-03
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就 http get呗。
HttpGet httpRequest = new HttpGet(url);
HttpClient httpClient = new DefaultHttpClient();
String strResult = "doGetError";
try {
/* 发送请求并等待响应 */
HttpResponse httpResponse = httpClient.execute(httpRequest);
/* 若状态码为200 ok */
if (httpResponse.getStatusLine().getStatusCode() == 200) {
/* 读返回数据 */
strResult = EntityUtils.toString(httpResponse.getEntity());
} else {
strResult = "Error Response: "
+ httpResponse.getStatusLine().toString();
}
} catch (ClientProtocolException e) {
strResult = e.getMessage().toString();
e.printStackTrace();
} catch (IOException e) {
strResult = e.getMessage().toString();
e.printStackTrace();
} catch (Exception e) {
strResult = e.getMessage().toString();
e.printStackTrace();
}
忘世麒麟 2013-06-03
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参考如下代码：
1、首先在AndroidManifest中加入Internet权限:
1.<!-- 访问网络的权限 -->
2. <uses-permission Android:name="android.permission.INTERNET"/>
Activity中得代码如下
1.public class GetHtmlCodeActivity extends Activity {
2. @Override
3. public void onCreate(Bundle savedInstanceState) {
4. super.onCreate(savedInstanceState);
5. setContentView(R.layout.main);
6.
7. TextView textView = (TextView)this.findViewById(R.id.picture_textview);
8. try {
9. textView.setText(getPictureData("http://www.baidu.com"));
10. } catch (Exception e) {
11. Log.e("GetHtmlCodeActivity", e.toString());
12. Toast.makeText(GetHtmlCodeActivity.this, "网络连接失败", 1).show();
13. }
14. }
15. //得到图片的二进制数据
16. public String getPictureData(String path) throws Exception{
17. // 类 URL 代表一个统一资源定位符，它是指向互联网“资源”的指针。
18. URL url = new URL("http://www.baidu.com/");
19. // 每个 HttpURLConnection 实例都可用于生成单个请求，
20. //但是其他实例可以透明地共享连接到 HTTP 服务器的基础网络
21. HttpURLConnection conn = (HttpURLConnection) url.openConnection();
22. //设置 URL 请求的方法
23. conn.setRequestMethod("GET");
24. //设置一个指定的超时值（以毫秒为单位），
25. //该值将在打开到此 URLConnection 引用的资源的通信链接时使用。
26. conn.setConnectTimeout(5 * 1000);
27. // conn.getInputStream()返回从此打开的连接读取的输入流
28. InputStream inStream = conn.getInputStream();// 通过输入流获取html数据
29. byte[] data = readInputStream(inStream);// 得到html的二进制数据
30. String html = new String(data);
31. return html;
32.
33. }
34. //读取输入流中的数据，返回字节数组byte[]
35. public byte[] readInputStream(InputStream inStream) throws Exception{
36. //此类实现了一个输出流，其中的数据被写入一个 byte 数组
37. ByteArrayOutputStream outStream = new ByteArrayOutputStream();
38. // 字节数组
39. byte[] buffer = new byte[1024];
40. int len = 0;
41. //从输入流中读取一定数量的字节，并将其存储在缓冲区数组buffer 中
42. while ((len = inStream.read(buffer)) != -1) {
43. // 将指定 byte 数组中从偏移量 off 开始的 len 个字节写入此输出流
44. outStream.write(buffer, 0, len);
45. }
46. inStream.close();
47. //toByteArray()创建一个新分配的 byte 数组。
48. return outStream.toByteArray();
49. }
50.}
