Android makeHttpRequest(url\u create\u product,“POST”,params)方法显示错误
以下行显示错误Android makeHttpRequest(url\u create\u product,“POST”,params)方法显示错误,android,json,Android,Json,以下行显示错误 JSONObject json = jsonParser.makeHttpRequest(url_create_product,"POST", params); 错误是类型JSONParser的makeHttpRequestString、String、List方法未定义。并建议修改“jsonParser”的Add cast,在点击此建议后,代码将更改为 JSONObject json = ((Object) jsonParser).makeHttpRequest(url_cre
JSONObject json = jsonParser.makeHttpRequest(url_create_product,"POST", params);
错误是类型JSONParser的makeHttpRequestString、String、List方法未定义。并建议修改“jsonParser”的Add cast,在点击此建议后,代码将更改为
JSONObject json = ((Object) jsonParser).makeHttpRequest(url_create_product, "POST",
params);
误差保持不变。但建议改为改方法。单击此建议后,什么也没有发生,错误和建议保持不变。
请告诉我有什么问题。已成功导入org.json.simple.parser.JSONParser库。不是库或导入的问题,我想试试这个类,我也有这个错误,但是这个类一切都很好 java 我希望这对你有帮助
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}