当我将 http post JSON 数据发布到服务器时,出现异常ClientProtocolException
。谁能告诉我这段代码有什么问题?
日志猫
06-11 10:30:56.062: W/System.err(435): org.apache.http.client.ClientProtocolException
06-11 10:30:56.122: W/System.err(435): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:557)
06-11 10:30:56.182: W/System.err(435): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:653)
06-11 10:30:56.212: W/System.err(435): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:627)
06-11 10:30:56.212: W/System.err(435): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:616)
06-11 10:30:56.212: W/System.err(435): at com.vector.syncfunc.MainActivity.post(MainActivity.java:168)
代码:
private String post(String url) {
String response = null;
try {
boolean exception = false;
StringBuilder builder = new StringBuilder();
builder.append(getDeviceId());
builder.append("|||");
builder.append(getLastSyncDate());
builder.append("|||");
builder.append(getCurrentDateStr());
String dateStr = builder.toString();
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
//httpPost.setHeader("Host", url);
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader(HTTP.CONTENT_TYPE, "application/json");
JSONObject jsonObject = new JSONObject();
String param = null;
try {
param = encrypt(dateStr);
} catch (InvalidKeyException e1) {
e1.printStackTrace();
exception = true;
} catch (NoSuchAlgorithmException e1) {
e1.printStackTrace();
exception = true;
} catch (NoSuchPaddingException e1) {
e1.printStackTrace();
exception = true;
} catch (IllegalBlockSizeException e1) {
e1.printStackTrace();
exception = true;
} catch (BadPaddingException e1) {
e1.printStackTrace();
exception = true;
}
if (exception) {
return null;
}
try {
jsonObject.put("encstring", param);
} catch (JSONException e) {
e.printStackTrace();
}
httpPost.setHeader("Content-Length", ""+param.getBytes().length);
StringEntity entity = new StringEntity(jsonObject.toString(),
HTTP.UTF_8);
entity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
httpPost.setEntity(entity);
ResponseHandler responseHandler = new BasicResponseHandler();
HttpResponse httpResponse = httpclient.execute(httpPost,
responseHandler);
StatusLine line = httpResponse.getStatusLine();
if (line.getStatusCode() == 200) {
HttpEntity httpEntity = httpResponse.getEntity();
InputStream inputStream = httpEntity.getContent();
response = readString(inputStream);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return response;
}