TQws6kjP

1package com.gost_group.nsi.util.http;
2
3import java.io.BufferedReader;
4import java.io.InputStreamReader;
5import java.io.OutputStreamWriter;
6import java.net.HttpURLConnection;
7import java.net.URL;
8
9/**
10 * @author *******@gmail.com
11 * <p>
12 * Nov 17, 2016, 4:40:51 AM
13 */
14public class HttpUtils {
15
16    public static String postAndWait(String data, String urlStr) throws Throwable 
17    {
18        // TODO: перделать rv на StringBuffer для скорости
19        String rv = "";
20        URL url = new URL(urlStr.trim());
21        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
22        conn.setRequestMethod("POST");
23        conn.setRequestProperty("User-Agent", HttpUtils.class.getName());
24        conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
25        conn.setDoOutput(true);
26        conn.setDoInput(true);
27        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
28        writer.write(data);
29        writer.flush();
30        String line;
31        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
32        while ((line = reader.readLine()) != null) {
33            rv += line;
34        }        
35        writer.close();
36        reader.close();
37        
38        rv = "{\"status\": \"" + conn.getResponseCode() + "\", \"message\": \"" + conn.getResponseMessage() + "\", \"data\" : " + rv + "}";
39        return rv;
40    }
41    
42    /** Делает запрос и возвращает тело ответа либо Exception если код не равен 200
43     * 
44     * @param data
45     * @param urlStr
46     * @return
47     * @throws Throwable 
48     */
49    public static String postAndGetResBody(String data, String urlStr) throws Throwable 
50    {
51        return submitAndGetResBody("POST", data, urlStr);     
52    }
53    
54    /**  */
55    public static String submitAndGetResBody(String method, String data, String urlStr) throws Throwable 
56    {
57        // TODO: перделать rv на StringBuilder для скорости
58        String rv = "";
59        URL url = new URL(urlStr.trim());
60        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
61        conn.setRequestMethod(method);
62        conn.setRequestProperty("User-Agent", HttpUtils.class.getName());
63        conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
64        conn.setDoOutput(true);
65        conn.setDoInput(true);
66        if (data != null)
67        {
68            OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
69            writer.write(data);
70            writer.flush();
71            writer.close();
72        }
73        String line;
74        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
75        while ((line = reader.readLine()) != null) {
76            rv += line;
77        }                
78        reader.close();        
79        if (conn.getResponseCode() != 200)
80            throw new Exception("URL request failed with " + conn.getResponseCode() + " code.");
81        return rv;
82    }
83
84    public static String get(String urlStr) throws Throwable {
85        URL url = new URL(urlStr.trim());
86        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
87        conn.setRequestMethod("GET");
88        conn.setRequestProperty("User-Agent", HttpUtils.class.getName());
89        conn.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
90        conn.setDoOutput(true);
91        conn.setDoInput(true);
92        int code = conn.getResponseCode();
93        if (code == 200) {
94            String line;
95            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
96            StringBuilder sb = new StringBuilder();
97            while ((line = reader.readLine()) != null) {
98                sb.append(line);
99            }
100            reader.close();
101            return sb.toString();
102        } else {
103            throw new RuntimeException("response code = " + code);
104        }
105    }
106
107}