<p style="margin: 10px auto; padding-top: 0px; padding-bottom: 0px; line-height: 18px; color: rgb(68, 68, 68); font-family: tahoma, arial, sans-serif;"><strong><span style="font-size:18px;">一、HttpClinet方式</span></strong></p><p style="margin: 10px auto; padding-top: 0px; padding-bottom: 0px; line-height: 18px; color: rgb(68, 68, 68); font-family: tahoma, arial, sans-serif;"><strong><span style="font-size:18px;">1、HTTP GET 示例:</span></strong></p>
<span style="font-size:14px;"> 1 public class TestHttpGetMethod{
2 public void get(){
3 BufferedReader in = null;
4 try{
5 HttpClient client = new DefaultHttpClient();
6 HttpGet request = new HttpGet();
7 request.setURI("http://w26.javaeye.com");
8 HttpResponse response = client.execute(request);
9 in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
10 StringBuffer sb = new StringBuffer("");
11 String line = "";
12 String NL = System.getProperty("line.separator");
13 while((line = in.readLine()) != null){
14 sb.append(line + NL);
15
16 }
17 in.close();
18 String page = sb.toString();
19 Log.i(TAG, page);
20 }catch(Exception e){
21 Log.e(TAG,e.toString())
22 }finally{
23 if(in != null){
24 try{
25 in.close();
26 }catch(IOException ioe){
27 Log.e(TAG, ioe.toString());
28 }
29 }
30 }
31 }
32 }</span>2、HTTP POST 示例:
<span style="font-size:14px;">1 public class TestHttpPostMethod{
2 public void post(){
3 BufferedReader in = null;
4 try{
5 HttpClient client = new DefaultHttpClient();
6 HttpPost request = new HttpPost("http://localhost/upload.jsp");
7 List<NameValuePair> postParams = new ArrayList<NameValuePair>();
8 postParams.add(new BasicNameValuePair("filename", "sex.mov"));
9 UrlEncodeFormEntity formEntity = new UrlEncodeFormEntity(postParams);
10 request.setEntity(formEntity);
11 HttpResponse response = client.execute(request);
12 in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
13 StringBuffer sb = new StringBuffer("");
14 String line = "";
15 String NL = System.getProperty("line.separator");
16 while((line = in.readLine()) != null){
17 sb.append(line + NL);
18 }
19 in.close();
20 String result = sb.toString();
21 Log.i(TAG, result );
22 }catch(Exception e){
23 Log.e(TAG,e.toString())
24 }finally{
25 if(in != null){
26 try{
27 in.close();
28 }catch(IOException ioe){
29 Log.e(TAG, ioe.toString());
30 }
31 }
32 }
33 }
34 }</span>
二、HttpURLConnection 方式
<span style="font-size:14px;"> 1 URL url = null;
2 HttpURLConnection conn = null;
3 InputStream in = null;
4 OutputStream out = null;
5 byte[] data ="测试字符串".getBytes();
6 try{
7 url =new URL("www.xxx.com/servlet");
8 conn = (HttpURLConnection) url.openConnection();
9
10 //设置连接属性
11 conn.setDoOutput(true);// 使用 URL 连接进行输出
12 conn.setDoInput(true);// 使用 URL 连接进行输入
13 conn.setUseCaches(false);// 忽略缓存
14 conn.setConnectTimeout(30000);//设置连接超时时长，单位毫秒
15 conn.setRequestMethod("POST");//设置请求方式，POST or GET，注意：如果请求地址为一个servlet地址的话必须设置成POST方式
16
17 //设置请求头
18 conn.setRequestProperty("Accept", "*/*");
19 conn.setRequestProperty("Connection", "Keep-Alive");
20 conn.setRequestProperty("Accept-Charset", "utf-8");
21 if (data != null) {
22 out = conn.getOutputStream();
23 out.write(data);
24 }
25 int code = conn.getResponseCode();
26 if(code ==200){
27 in = conn.getInputStream();// 可能造成阻塞
28 long len = conn.getContentLength();
29 byte[] bs = new byte[(int) len];//返回结果字节数组
30 int all = 0;
31 int dn = 0;
32 while ((dn = in.read(bs, all, 1)) > 0) {
33 all += dn;
34 if (all == len) {
35 break;
36 }
37 }
38 }
39 }</span>
