Android中解析网络请求的URL

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近期正在做Android网络应用的开发，使用了android网络请求方面的知识。如今向大家介绍网络请求方面的知识。我们知道android中向server端发送一个请求，（这就是我们通常所说的POST请求），我们要发送一个完整的URL。然后server端接收到这个URL，对这个URL进行特定的解析。就是对URL进行解析，转化为JSON数据，然后，我们仅仅要处理这个JSON数据就能够了。

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我如今就用我的项目实例来体现解析URL的过程：

1、组装URL的过程：

private String getOrderPayUrl(int order, int action, String accountid,
String token) {
Calendar calendar = Calendar.getInstance();
long time = calendar.getTimeInMillis() / 1000;
return orderPayUrl + "?action=" + action + "&time=" + time
+ "&accountid=" + accountid + "&token=" + token + "&paymoney="
+ order + "¤cy=CNY&" + "sign="
+ getSign(action, time, accountid);
}

2、发送URL的过程：

private void httpRequest(String url, int which, String method) {
HttpRequestTask task = new HttpRequestTask(mHandler, url, which, method);
task.startTask();
}

当中mHandler为一个定义的局部变量。用Handler类型来处理返回的解析结果，

public class HttpRequestTask implements Runnable {private Handler handler;
private String url;
private int which;
private String method;public HttpRequestTask(Handler handler, String url, int which, String method) {
this.url = url;
this.handler = handler;
this.which = which;
this.method = method;}public void startTask() {
new Thread(this).start();
}@Override
public void run() {
Looper.prepare();
sendRequest();
}private void sendRequest() {
String result = null;
if (method != null && method.equals(MyConstant.POST)) {
result = HttpUtil.queryStringForPost(url);
}
if (method != null && method.equals(MyConstant.GET)) {
result = HttpUtil.queryStringForGet(url);
}
// Log.e("---result---", result);
Message msg = Message.obtain();
msg.what = which;
msg.obj = result;
handler.sendMessage(msg);
}}

3、解析URL的过程：

// 发送Post请求。获得响应查询结果
public static String queryStringForPost(String url) {HttpPost request = HttpUtil.getHttpPost(url);
String result = null;try {
// 获得响应对象
HttpResponse response = HttpUtil.getHttpResponse(request);if (response.getStatusLine().getStatusCode() == 200) {
result = EntityUtils.toString(response.getEntity());
return result;
}} catch (ClientProtocolException e) {
e.printStackTrace();
result = "网络异常！";
return result;
} catch (IOException e) {
e.printStackTrace();
result = "网络异常！";
return result;
}
return result;
}

// // 获得post请求对象request
public static HttpPost getHttpPost(String url) {
// 去除空格
//if (url != null) {
//Pattern p = Pattern.compile("\\s");
//Matcher m = p.matcher(url);
//url = m.replaceAll("");
//}
HttpPost request = new HttpPost(url);
return request;
}

当中我们要使用的包文件是