java代码调用http接口

 1 public static void main(String[] args) throws Exception {
 2         //请求的webservice的url
 3         URL url = new URL("http://");
 4         //创建http链接
 5         HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
 6     
 7         //设置请求的方法类型
 8         httpURLConnection.setRequestMethod("POST");
 9         
10         //设置请求的内容类型
11         httpURLConnection.setRequestProperty("Content-type", "application/x-www-form-urlencoded");
12         
13         //设置发送数据
14         httpURLConnection.setDoOutput(true);
15         //设置接受数据
16         httpURLConnection.setDoInput(true);
17         
18         //发送数据,使用输出流
19         OutputStream outputStream = httpURLConnection.getOutputStream();
20         //发送的soap协议的数据
21         String requestXmlString = requestXml("北京");
22     
23         String content = "user_>);
24         
25         //发送数据
26         outputStream.write(content.getBytes());
27     
28         //接收数据
29         InputStream inputStream = httpURLConnection.getInputStream();
30     
31         //定义字节数组
32         byte[] b = new byte[1024];
33         
34         //定义一个输出流存储接收到的数据
35         ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
36         
37         //开始接收数据
38         int len = 0;
39         while (true) {
40             len = inputStream.read(b);
41             if (len == -1) {
42                 //数据读完
43                 break;
44             }
45             byteArrayOutputStream.write(b, 0, len);
46         }
47         
48         //从输出流中获取读取到数据(服务端返回的)
49         String response = byteArrayOutputStream.toString();
50         
51         System.out.println(response);
52         
53     }