| 提交 | 用户 | 时间 | ||
| a6de49 | 1 | package com.iailab.module.data.common.utils; |
| H | 2 | |
| 3 | import org.springframework.util.CollectionUtils; | |
| 4 | ||
| 5 | import java.io.BufferedReader; | |
| 6 | import java.io.IOException; | |
| 7 | import java.io.InputStreamReader; | |
| 8 | import java.io.PrintWriter; | |
| 9 | import java.net.URL; | |
| 10 | import java.net.URLConnection; | |
| 11 | import java.util.List; | |
| 12 | import java.util.Map; | |
| 13 | ||
| 14 | /** | |
| 15 | * @author PanZhibao | |
| 16 | * @date 2021年06月03日 15:31 | |
| 17 | */ | |
| 18 | public class HttpRequest { | |
| 19 | /** | |
| 20 | * 向指定URL发送GET方法的请求 | |
| 21 | * | |
| 22 | * @param url 发送请求的URL | |
| 23 | * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 | |
| 24 | * @return URL 所代表远程资源的响应结果 | |
| 25 | */ | |
| 26 | public static String sendGet(String url, String param) { | |
| 27 | String result = ""; | |
| 28 | BufferedReader in = null; | |
| 29 | try { | |
| 30 | String urlNameString = url + "?" + param; | |
| 31 | URL realUrl = new URL(urlNameString); | |
| 32 | // 打开和URL之间的连接 | |
| 33 | URLConnection connection = realUrl.openConnection(); | |
| 34 | // 设置通用的请求属性 | |
| 35 | connection.setRequestProperty("accept", "*/*"); | |
| 36 | connection.setRequestProperty("connection", "Keep-Alive"); | |
| 37 | connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); | |
| 38 | ||
| 39 | // 建立实际的连接 | |
| 40 | connection.connect(); | |
| 41 | // 获取所有响应头字段 | |
| 42 | Map<String, List<String>> map = connection.getHeaderFields(); | |
| 43 | // 遍历所有的响应头字段 | |
| 44 | for (String key : map.keySet()) { | |
| 45 | System.out.println(key + "--->" + map.get(key)); | |
| 46 | } | |
| 47 | // 定义 BufferedReader输入流来读取URL的响应 | |
| 48 | in = new BufferedReader(new InputStreamReader(connection.getInputStream())); | |
| 49 | String line; | |
| 50 | while ((line = in.readLine()) != null) { | |
| 51 | result += line; | |
| 52 | } | |
| 53 | } catch (Exception e) { | |
| 54 | System.out.println("发送GET请求出现异常！" + e); | |
| 55 | e.printStackTrace(); | |
| 56 | } | |
| 57 | // 使用finally块来关闭输入流 | |
| 58 | finally { | |
| 59 | try { | |
| 60 | if (in != null) { | |
| 61 | in.close(); | |
| 62 | } | |
| 63 | } catch (Exception e2) { | |
| 64 | e2.printStackTrace(); | |
| 65 | } | |
| 66 | } | |
| 67 | return result; | |
| 68 | } | |
| 69 | ||
| 70 | public static String sendGet(String url, Map<String, String> params, String authorization) { | |
| 71 | String result = ""; | |
| 72 | BufferedReader in = null; | |
| 73 | try { | |
| 74 | StringBuilder sb = new StringBuilder(); | |
| 75 | sb.append(url); | |
| 76 | if (!CollectionUtils.isEmpty(params)) { | |
| 77 | sb.append("?"); | |
| 78 | params.forEach((k, v) -> { | |
| 79 | sb.append(k + "=" + v + "&"); | |
| 80 | }); | |
| 81 | sb.append("t=" + System.currentTimeMillis()); | |
| 82 | } | |
| 83 | String urlNameString = sb.toString(); | |
| 84 | URL realUrl = new URL(urlNameString); | |
| 85 | // 打开和URL之间的连接 | |
| 86 | URLConnection connection = realUrl.openConnection(); | |
| 87 | // 设置通用的请求属性 | |
| 88 | connection.setRequestProperty("Authorization", authorization); | |
| 89 | connection.setRequestProperty("accept", "*/*"); | |
| 90 | connection.setRequestProperty("connection", "Keep-Alive"); | |
| 91 | connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); | |
| 92 | ||
| 93 | // 建立实际的连接 | |
| 94 | connection.connect(); | |
| 95 | // 获取所有响应头字段 | |
| 96 | Map<String, List<String>> map = connection.getHeaderFields(); | |
| 97 | // 遍历所有的响应头字段 | |
| 98 | for (String key : map.keySet()) { | |
| 99 | System.out.println(key + "--->" + map.get(key)); | |
| 100 | } | |
| 101 | // 定义 BufferedReader输入流来读取URL的响应 | |
| 102 | in = new BufferedReader(new InputStreamReader(connection.getInputStream())); | |
| 103 | String line; | |
| 104 | while ((line = in.readLine()) != null) { | |
| 105 | result += line; | |
| 106 | } | |
| 107 | } catch (Exception e) { | |
| 108 | System.out.println("发送GET请求出现异常！" + e); | |
| 109 | e.printStackTrace(); | |
| 110 | } | |
| 111 | // 使用finally块来关闭输入流 | |
| 112 | finally { | |
| 113 | try { | |
| 114 | if (in != null) { | |
| 115 | in.close(); | |
| 116 | } | |
| 117 | } catch (Exception e2) { | |
| 118 | e2.printStackTrace(); | |
| 119 | } | |
| 120 | } | |
| 121 | return result; | |
| 122 | } | |
| 123 | ||
| 124 | /** | |
| 125 | * 向指定 URL 发送POST方法的请求 | |
| 126 | * | |
| 127 | * @param url | |
| 128 | * @param json | |
| 129 | * @return | |
| 130 | */ | |
| 131 | public static String sendPost(String url, String json) { | |
| 132 | PrintWriter out = null; | |
| 133 | BufferedReader in = null; | |
| 134 | String result = ""; | |
| 135 | try { | |
| 136 | URL realUrl = new URL(url); | |
| 137 | // 打开和URL之间的连接 | |
| 138 | URLConnection conn = realUrl.openConnection(); | |
| 139 | // 设置通用的请求属性 | |
| 140 | conn.setRequestProperty("accept", "*/*"); | |
| 141 | conn.setRequestProperty("connection", "Keep-Alive"); | |
| 142 | conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); | |
| 143 | ||
| 144 | // 发送POST请求必须设置如下两行 | |
| 145 | conn.setDoOutput(true); | |
| 146 | conn.setDoInput(true); | |
| 147 | // 获取URLConnection对象对应的输出流 | |
| 148 | out = new PrintWriter(conn.getOutputStream()); | |
| 149 | // 发送请求参数 | |
| 150 | out.print(json); | |
| 151 | // flush输出流的缓冲 | |
| 152 | out.flush(); | |
| 153 | // 定义BufferedReader输入流来读取URL的响应 | |
| 154 | in = new BufferedReader(new InputStreamReader(conn.getInputStream())); | |
| 155 | String line; | |
| 156 | while ((line = in.readLine()) != null) { | |
| 157 | result += line; | |
| 158 | } | |
| 159 | } catch (Exception e) { | |
| 160 | System.out.println("发送 POST 请求出现异常！" + e); | |
| 161 | e.printStackTrace(); | |
| 162 | } | |
| 163 | //使用finally块来关闭输出流、输入流 | |
| 164 | finally { | |
| 165 | try { | |
| 166 | if (out != null) { | |
| 167 | out.close(); | |
| 168 | } | |
| 169 | if (in != null) { | |
| 170 | in.close(); | |
| 171 | } | |
| 172 | } catch (IOException ex) { | |
| 173 | ex.printStackTrace(); | |
| 174 | } | |
| 175 | } | |
| 176 | return result; | |
| 177 | } | |
| 178 | ||
| 179 | /** | |
| 180 | * 向指定 URL 发送POST方法的请求 | |
| 181 | * | |
| 182 | * @param url | |
| 183 | * @param json | |
| 184 | * @param authorization | |
| 185 | * @return | |
| 186 | */ | |
| 187 | public static String sendPost(String url, String json, String authorization) { | |
| 188 | PrintWriter out = null; | |
| 189 | BufferedReader in = null; | |
| 190 | String result = ""; | |
| 191 | try { | |
| 192 | URL realUrl = new URL(url); | |
| 193 | // 打开和URL之间的连接 | |
| 194 | URLConnection conn = realUrl.openConnection(); | |
| 195 | // 设置通用的请求属性 | |
| 196 | conn.setRequestProperty("Authorization", authorization); | |
| 197 | conn.setRequestProperty("accept", "*/*"); | |
| 198 | conn.setRequestProperty("connection", "Keep-Alive"); | |
| 199 | conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); | |
| 200 | ||
| 201 | // 发送POST请求必须设置如下两行 | |
| 202 | conn.setDoOutput(true); | |
| 203 | conn.setDoInput(true); | |
| 204 | // 获取URLConnection对象对应的输出流 | |
| 205 | out = new PrintWriter(conn.getOutputStream()); | |
| 206 | // 发送请求参数 | |
| 207 | out.print(json); | |
| 208 | // flush输出流的缓冲 | |
| 209 | out.flush(); | |
| 210 | // 定义BufferedReader输入流来读取URL的响应 | |
| 211 | in = new BufferedReader(new InputStreamReader(conn.getInputStream())); | |
| 212 | String line; | |
| 213 | while ((line = in.readLine()) != null) { | |
| 214 | result += line; | |
| 215 | } | |
| 216 | } catch (Exception e) { | |
| 217 | System.out.println("发送 POST 请求出现异常！" + e); | |
| 218 | e.printStackTrace(); | |
| 219 | } | |
| 220 | //使用finally块来关闭输出流、输入流 | |
| 221 | finally { | |
| 222 | try { | |
| 223 | if (out != null) { | |
| 224 | out.close(); | |
| 225 | } | |
| 226 | if (in != null) { | |
| 227 | in.close(); | |
| 228 | } | |
| 229 | } catch (IOException ex) { | |
| 230 | ex.printStackTrace(); | |
| 231 | } | |
| 232 | } | |
| 233 | return result; | |
| 234 | } | |
| 235 | } | |
