Android GET,POST向服務器端發送數據(發送)

//目錄結構

//strings.xml字符常量文件

1. <?xml version="1.0" encoding="utf-8"?>
2. <resources>
4. <string name="title">通過Get和Post兩種方式分別提交數據到服務器</string>
5. <string name="app_name">GetAndPostRequest</string>
6. <string name="book_name">書本名稱</string>
7. <string name="book_price">書本價格</string>
8. <string name="success">提交成功</string>
9. <string name="error">提交失敗</string>
10. <string name="get_request">Get請求提交</string>
11. <string name="post_request">Post請求提交</string>
12. </resources>

1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"
3. android:layout_width="fill_parent"
4. android:layout_height="fill_parent"
5. android:orientation="vertical" >
7. <TextView
8. android:layout_width="fill_parent"
9. android:layout_height="wrap_content"
10. android:text="@string/title" />
11. <TextView
12. android:layout_width="fill_parent"
13. android:layout_height="wrap_content"
14. android:text="@string/book_name"
15. />
16. <EditText
17. android:id="@+id/book_name"
18. android:layout_width="fill_parent"
19. android:layout_height="wrap_content"
20. />
21. <TextView
22. android:layout_width="fill_parent"
23. android:layout_height="wrap_content"
24. android:text="@string/book_price"
25. />
26. <EditText
27. android:id="@+id/book_price"
28. android:numeric="integer"
29. android:layout_width="fill_parent"
30. android:layout_height="wrap_content"
31. />
32. <LinearLayout
33. android:orientation="horizontal"
34. android:layout_width="fill_parent"
35. android:layout_height="wrap_content"
36. >
37. <Button
38. android:id="@+id/get_reqeust"
39. android:layout_width="wrap_content"
40. android:layout_height="wrap_content"
41. android:text="@string/get_request"
42. />
43. <Button
44. android:id="@+id/post_reqeust"
45. android:layout_width="wrap_content"
46. android:layout_height="wrap_content"
47. android:text="@string/post_request"
48. />
49. </LinearLayout>
51. </LinearLayout>

1. package sn.len.request;
3. import java.io.OutputStream;
4. import java.net.HttpURLConnection;
5. import java.net.URL;
6. import java.net.URLEncoder;
7. import java.util.Map;
9. public class RequestService
10. {
11. //get請求，有文件長度大小限制
12. public static boolean getRequest(String urlPath) throws Exception
13. {
14. URL url=new URL(urlPath);
15. HttpURLConnection con=(HttpURLConnection)url.openConnection();
16. con.setRequestMethod("GET");
17. con.setReadTimeout(5*1000);
18. if(con.getResponseCode()==200)
19. {
20. return true;
21. }
22. return false;
23. }
24. //post請求，無文件長度大小限制
25. public static boolean postRequest(String urlPath,Map<String,String> map) throws Exception
26. {
27. StringBuilder builder=new StringBuilder(); //拼接字符
28. //拿出鍵值
29. if(map!=null && !map.isEmpty())
30. {
31. for(Map.Entry<String, String> param:map.entrySet())
32. {
33. builder.append(param.getKey()).append('=').append(URLEncoder.encode(param.getValue(), "utf-8")).append('&');
34. }
35. builder.deleteCharAt(builder.length()-1);
36. }
37. //下面的Content-Length: 是這個URL的二進制數據長度
38. byte b[]=builder.toString().getBytes();
39. URL url=new URL(urlPath);
40. HttpURLConnection con=(HttpURLConnection)url.openConnection();
41. con.setRequestMethod("POST");
42. con.setReadTimeout(5*1000);
43. con.setDoOutput(true);//打開向外輸出
44. con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");//內容類型
45. con.setRequestProperty("Content-Length",String.valueOf(b.length));//長度
46. OutputStream outStream=con.getOutputStream();
47. outStream.write(b);//寫入數據
48. outStream.flush();//刷新內存
49. outStream.close();
50. //狀態碼是不成功
51. if(con.getResponseCode()==200)
52. {
53. return true;
54. }
55. return false;
57. }
58. }