如何使用Get方法在android中调用Web服务
在我的程序中，我使用postmethod来调用Web服务。但是Web服务基于Get方法。我不知道如何编写Get方法的代码。请告诉我如何编写Get方法来调用Web服务的代码。我的代码如下所示基于post方法。
RestClient arc = new RestClient（“http：..............”）;
arc.AddParam（“search”，msft）;
在这里，我创建了一个RestClient对象，并通过调用AddParam方法添加参数.RestClient类是
公共类AddSubRestClient {
private ArrayList <NameValuePair> params;
private ArrayList <NameValuePair> headers;
private InputStream instream;
private String url;
private int responseCode;
private String message;
private String response;
public String getResponse() {
return response;
}
public InputStream inResponse() {
return instream;
}
public String getErrorMessage() {
return message;
}
public int getResponseCode() {
return responseCode;
}
public AddSubRestClient(String url)
{
this.url = url;
params = new ArrayList<NameValuePair>();
headers = new ArrayList<NameValuePair>();
}
public void AddParam(String name, String value)
{
params.add(new BasicNameValuePair(name, value));
}
public void AddHeader(String name, String value)
{
headers.add(new BasicNameValuePair(name, value));
}
public void Execute() throws Exception
{
//Postmethod
HttpPost request = new HttpPost(url);
Log.e("in","rest client");
//add headers
for(NameValuePair h : headers)
{
request.addHeader(h.getName(), h.getValue());
}
if(!params.isEmpty()){
UrlEncodedFormEntity p_entity = new UrlEncodedFormEntity(params,HTTP.UTF_8);
request.setEntity(p_entity);
Log.e("params",params.toString());
Log.e("request",request.toString());
}
executeRequest(request, url);
}
public void executeRequest(HttpUriRequest request, String url)
{
HttpClient client = new DefaultHttpClient();
HttpResponse httpResponse;
try {
httpResponse = client.execute(request);
responseCode = httpResponse.getStatusLine().getStatusCode();
message = httpResponse.getStatusLine().getReasonPhrase();
HttpEntity entity = httpResponse.getEntity();
if (entity != null) {
intream = entity.getContent();
response = convertStreamToString(instream);
/ Closing the input stream will trigger connection release
instream.close();
}
} catch (ClientProtocolException e) {
client.getConnectionManager().shutdown();
e.printStackTrace();
} catch (IOException e) {
client.getConnectionManager().shutdown();
e.printStackTrace();
}
}
private static String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
Log.e("in","try block");
line = reader.readLine();
Log.e("line",line);
if(line==null)
{
Log.e("Line","is null");
}
else{
Log.e("Line","is not null");
sb.append(line );
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
Log.e("line","close");
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
没有找到相关结果
已邀请:
1 个回复
茂坦湿床够
public static JSONObject connectSingle(String url) { HttpClient httpclient = new DefaultHttpClient(); // Prepare a request object HttpGet httpget = new HttpGet(url); // Execute the request HttpResponse response; try { response = httpclient.execute(httpget); // Get hold of the response entity HttpEntity entity = response.getEntity(); // If the response does not enclose an entity, there is no need // to worry about connection release if (entity != null) { // A Simple JSON Response Read InputStream instream = entity.getContent(); String result= convertStreamToString(instream); instream.close(); // A Simple JSONObject Creation JSONObject obj = new JSONObject(result); return obj; } else return null; } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; }