我想用POST方法调用rest webservice.Below是我需要传递的服务url及其参数
Rest Service: https://url/SSOServer/SSO.svc/RestService/Login
Json Object {"ProductCode":"AB","DeviceType":"android Simulator","UserName":"","ModuleCode":"AB_MOBILE","DeviceId":"device-id","Version":"1.0.0.19","CustomerCode":"w","Password":""}
这是我的帖子请求代码：
public void sendHttpPost() throws ClientProtocolException, IOException{
HttpPost httpPostRequest = new HttpPost(url + buildParams());
// add headers
Iterator it = headers.entrySet().iterator();
Iterator itP = params.entrySet().iterator();
while (it.hasNext()) {
Entry header = (Entry) it.next();
httpPostRequest.addHeader((String)header.getKey(), (String)header.getValue());
}
HttpClient client = new DefaultHttpClient();
HttpResponse resp;
resp = client.execute(httpPostRequest);
this.respCode = resp.getStatusLine().getStatusCode();
Log.i(TAG, "response code: " + getResponseCode());
this.responsePhrase = resp.getStatusLine().getReasonPhrase();
Log.i(TAG, "error msg: " + getErrorMsg());
HttpEntity entity = resp.getEntity();
if (entity != null){
InputStream is = entity.getContent();
//Header contentEncoding = resp.getFirstHeader("Content-encoding");
//Log.i(TAG, "endoding" + contentEncoding.getValue());
response = convertStreamToString(is);
//response = response.substring(1,response.length()-1);
//response = "{" + response + "}";
Log.i(TAG, "response: " + response);
is.close();
}
}
我的问题是如何将json数据添加到此请求中？
答案 0 :(得分：3)
使用以下课程
public class RestClient
{
private ArrayList<NameValuePair> params;
private ArrayList<NameValuePair> headers;
private String url;
private int responseCode;
private String message;
private String response;
public String getResponse()
{
return response;
}
public String getErrorMessage()
{
return message;
}
public int getResponseCode()
{
return responseCode;
}
public RestClient(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(RequestMethod method) throws Exception
{
switch (method)
{
case GET:
{
// add parameters
String combinedParams = "";
if (!params.isEmpty())
{
combinedParams += "";
for (NameValuePair p : params)
{
String paramString = p.getName() + "" + URLEncoder.encode(p.getValue(),"UTF-8");
if (combinedParams.length() > 1)
{
combinedParams += "&" + paramString;
}
else
{
combinedParams += paramString;
}
}
}
HttpGet request = new HttpGet(url + combinedParams);
// add headers
for (NameValuePair h : headers)
{
request.addHeader(h.getName(), h.getValue());
}
executeRequest(request, url);
break;
}
case POST:
{
HttpPost request = new HttpPost(url);
// add headers
for (NameValuePair h : headers)
{
request.addHeader(h.getName(), h.getValue());
}
if (!params.isEmpty())
{
request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
}
executeRequest(request, url);
break;
}
}
}
private void executeRequest(HttpUriRequest request, String url) throws Exception
{
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters,15000);
HttpConnectionParams.setSoTimeout(httpParameters, 15000);
HttpClient client = new DefaultHttpClient(httpParameters);
HttpResponse httpResponse;
httpResponse = client.execute(request);
responseCode = httpResponse.getStatusLine().getStatusCode();
message = httpResponse.getStatusLine().getReasonPhrase();
HttpEntity entity = httpResponse.getEntity();
if (entity != null)
{
InputStream instream = entity.getContent();
response = convertStreamToString(instream);
// Closing the input stream will trigger connection release
instream.close();
}
}
private static String convertStreamToString(InputStream is)
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try
{
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
try
{
is.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
return sb.toString();
}
public InputStream getInputStream(){
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters,15000);
HttpConnectionParams.setSoTimeout(httpParameters, 15000);
HttpClient client = new DefaultHttpClient(httpParameters);
HttpResponse httpResponse;
try
{
HttpPost request = new HttpPost(url);
httpResponse = client.execute(request);
responseCode = httpResponse.getStatusLine().getStatusCode();
message = httpResponse.getStatusLine().getReasonPhrase();
HttpEntity entity = httpResponse.getEntity();
if (entity != null)
{
InputStream instream = entity.getContent();
return instream;
/* 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();
}
return null;
}
public enum RequestMethod
{
GET,
POST
}
}
以下是如何使用上面的类
的代码RestClient client=new RestClient(Webservices.student_details);
JSONObject obj=new JSONObject();
obj.put("StudentId",preferences.getStudentId());
client.AddParam("",obj.toString());
client.Execute(RequestMethod.GET);
String response=client.getResponse();
希望这会对你有所帮助
答案 1 :(得分：1)
问：如何将json数据添加到此请求中？
答：设置内容类型，长度并写入有效负载。
以下是一个例子：
JSONObject holder = new JSONObject();
...
JSONObject data = new JSONObject();
...
// Some example name=value pairs
while(iter.hasNext()) {
Map.Entry pairs = (Map.Entry)iter.next();
String key = (String)pairs.getKey();
Map m = (Map)pairs.getValue();
JSONObject data = new JSONObject();
Iterator iter2 = m.entrySet().iterator();
while(iter2.hasNext()) {
Map.Entry pairs2 = (Map.Entry)iter2.next();
data.put((String)pairs2.getKey(), (String)pairs2.getValue());
}
holder.put(key, data);
}
...
StringEntity se = new StringEntity(holder.toString());
...
httpost.setHeader("Accept", "application/json");
httpost.setHeader("Content-type", "application/json");
...