使用HttpURLConnection访问URL地址

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<pre class="java" name="code">/*
* 访问数据库
*/
private Thread postThread = new Thread() {
public void run() {
String target = "您要访问的URL地址"; //要提交的目标地址
URL url;
try {
url = new URL(target);
HttpURLConnection urlConn = (HttpURLConnection) url
.openConnection(); // 创建一个HTTP连接
urlConn.setRequestMethod("POST"); // 指定使用POST请求方式
urlConn.setDoInput(true); // 向连接中写入数据
urlConn.setDoOutput(true); // 从连接中读取数据
urlConn.setUseCaches(false); // 禁止缓存
urlConn.setInstanceFollowRedirects(true); //自动执行HTTP重定向
urlConn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded"); // 设置内容类型
DataOutputStream out = new DataOutputStream(
urlConn.getOutputStream()); // 获取输出流
String param = "提交的参数="
+ URLEncoder.encode(参数的值,
"UTF-8") + "&提交的参数="
+ URLEncoder.encode(参数的值, "UTF-8"); //连接要提交的数
out.writeBytes(param);//将要传递的数据写入数据输出流
out.flush();
//输出缓存
out.close(); //关闭数据输出流
if (urlConn.getResponseCode() == HttpURLConnection.HTTP_OK) { // 判断是否响应成功
InputStreamReader in = new InputStreamReader(
urlConn.getInputStream(),"utf-8"); // 获得读取的内容，utf-8获取内容的编码
BufferedReader buffer = new BufferedReader(in); // 获取输入流对象
String inputLine = null;
while ((inputLine = buffer.readLine()) != null) {
Log.d("MainActivity", inputLine + "n");
try {
JSONObject reader = new JSONObject(inputLine);//使用JSONObject解析
Log.i("MainActivity", "result_code:"+reader.getString("result_code"));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.i("MainAcitvity", e.getMessage());
}
//
Message msg = new Message();
//
msg.obj = inputLine;
//
handler.sendMessage(msg);
}
in.close(); //关闭字符输入流
}
urlConn.disconnect();
//断开连接
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
};
};

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