基于JAVA的新闻数据接口调用代码实例

基于JA V A的新闻数据接口调用代码实例

代码描述：基于JA V A的新闻数据接口调用代码实例

代码平台：聚合数据

import java.io.BufferedReader;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.UnsupportedEncodingException;

import https://www.360docs.net/doc/1310773978.html,.HttpURLConnection;

import https://www.360docs.net/doc/1310773978.html,.URL;

import https://www.360docs.net/doc/1310773978.html,.URLEncoder;

import java.util.HashMap;

import java.util.Map;

import net.sf.json.JSONObject;

/**

*新闻调用示例代码－聚合数据

*在线接口文档：https://www.360docs.net/doc/1310773978.html,/docs/138

**/

public class JuheDemo {

public static final String DEF_CHATSET = "UTF-8";

public static final int DEF_CONN_TIMEOUT = 30000;

public static final int DEF_READ_TIMEOUT = 30000;

public static String userAgent = "Mozilla/5.0 (Windows NT 6.1) Appl eWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";

//配置您申请的KEY

public static final String APPKEY ="*************************";

//1.新闻检索

public static void getRequest1(){

String result =null;

String url ="https://www.360docs.net/doc/1310773978.html,/onebox/news/query";//请求接口地址

Map params = new HashMap();//请求参数

params.put("q","");//需要检索的关键字,请UTF8 URLENCODE

params.put("key",APPKEY);//应用APPKEY(应用详细页查询)

params.put("dtype","");//返回数据的格式,xml或json，默认json

try{

result =net(url, params, "GET");

JSONObject object = JSONObject.fromObject(result);

if(object.getInt("error_code")==0){

System.out.println(object.get("result"));

}else{

System.out.println(object.get("error_code")+":"+object. get("reason"));

}

} catch(Exception e) {

e.printStackTrace();

}

}

//2.实时热点

public static void getRequest2(){

String result =null;

String url ="https://www.360docs.net/doc/1310773978.html,/onebox/news/words";//请求接口地址

Map params = new HashMap();//请求参数

params.put("key",APPKEY);//应用APPKEY(应用详细页查询)

params.put("dtype","");//返回数据的格式,xml或json，默认json

try{

result =net(url, params, "GET");

JSONObject object = JSONObject.fromObject(result);

if(object.getInt("error_code")==0){

System.out.println(object.get("result"));

}else{

System.out.println(object.get("error_code")+":"+object. get("reason"));

}

} catch(Exception e) {

e.printStackTrace();

}

}

public static void main(String[] args) {

}

/**

*

* @param strUrl 请求地址

* @param params 请求参数

* @param method 请求方法

* @return 网络请求字符串

* @throws Exception

*/

public static String net(String strUrl, Map params,String method) th rows Exception {

HttpURLConnection conn = null;

BufferedReader reader = null;

String rs = null;

try{

StringBuffer sb = new StringBuffer();

if(method==null|| method.equals("GET")){

strUrl = strUrl+"?"+urlencode(params);

}

URL url = new URL(strUrl);

conn = (HttpURLConnection) url.openConnection();

if(method==null|| method.equals("GET")){

conn.setRequestMethod("GET");

}else{

conn.setRequestMethod("POST");

conn.setDoOutput(true);

}

conn.setRequestProperty("User-agent", userAgent);

conn.setUseCaches(false);

conn.setConnectTimeout(DEF_CONN_TIMEOUT);

conn.setReadTimeout(DEF_READ_TIMEOUT);

conn.setInstanceFollowRedirects(false);

conn.connect();

if(params!= null&& method.equals("POST")) {

try{

DataOutputStream out = new DataOutputStream(conn.get OutputStream());

out.writeBytes(urlencode(params));

} catch(Exception e) {

// TODO: handle exception

}

}

InputStream is = conn.getInputStream();

reader = new BufferedReader(new InputStreamReader(is, DEF_CH ATSET));

String strRead = null;

while((strRead = reader.readLine()) != null) {

sb.append(strRead);

}

rs = sb.toString();

} catch(IOException e) {

e.printStackTrace();

} finally{

if(reader != null) {

reader.close();

}

if(conn != null) {

conn.disconnect();

}

}

return rs;

}

//将map型转为请求参数型

public static String urlencode(Mapdata) {

StringBuilder sb = new StringBuilder();

for(Map.Entry i : data.entrySet()) {

try{

sb.append(i.getKey()).append("=").append(URLEncoder.enc ode(i.getValue()+"","UTF-8")).append("&");

} catch(UnsupportedEncodingException e) {

e.printStackTrace();

}

}

return sb.toString();

}

}