[英]Why does converting this Python POST request to Java not work?
我正在嘗試使用Python Requests HTTP庫將此Python代碼轉換為Java代碼(適用於Android)。
import requests
payload = {"attr[val1]":123,
"attr[val2]":456,
"time":0,
"name":"Foo","surname":"Bar"}
r = requests.post("http://jakiro.herokuapp.com/api", data=payload)
r.status_code
r.text
到目前為止,這是我所做的:
protected void sendJson() {
Thread t = new Thread() {
public void run() {
Looper.prepare(); //For Preparing Message Pool for the child Thread
HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); //Timeout Limit
HttpResponse response;
JSONObject json = new JSONObject();
try {
Log.v("SOMETHING_NAME3", "Creating POST");
HttpPost post = new HttpPost("http://jakiro.herokuapp.com/api");
json.put(MessageAttribute.SURNAME, "Bar");
json.put(MessageAttribute.VAL1, 123);
json.put(MessageAttribute.VAL2, 456);
json.put(MessageAttribute.name, "Foo");
json.put(MessageAttribute.TIME, 0);
StringEntity se = new StringEntity( json.toString() );
se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
post.setEntity(se);
response = client.execute(post);
/*Checking response */
if(response!=null){
InputStream in = response.getEntity().getContent(); //Get the data in the entity
String foo = convertStreamToString(in);
Log.v("SOMETHING_NAME2", foo); // Gives me "Bad request"
}
} catch(Exception e) {
e.printStackTrace();
Log.v("SOMETHING_NAME", "Cannot Establish Connection");
}
Looper.loop(); //Loop in the message queue
}
};
t.start();
}
我已經用response.getStatusLine().getStatusCode()
檢查了響應,然后從服務器取回了400。 Python代碼可以正常工作,但在Android設備上的Java中則不能。 我看不出為什么。
@Blender的鏈接是該鏈接上的正確解決方案: 如何在HttpPost中使用參數
url編碼的正確方法是創建BasicNameValuePairs
並將其編碼為:
postParameters = new ArrayList<NameValuePair>();
postParameters.add(new BasicNameValuePair("param1", "param1_value"));
postParameters.add(new BasicNameValuePair("param2", "param2_value"));
httppost.setEntity(new UrlEncodedFormEntity(postParameters));
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