发送短信验证码
package com.example.demo; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL; import java.net.URLConnection; public class PostUtil { /** * 向指定URL发送POST方法的请求 * * @param url * 发送请求的URL * @param param * 请求参数,请求参数应该是name1=value1&name2=value2的形式。 * @return URL所代表远程资源的响应 */ public static String sendPost(String url, String param) { PrintWriter out = null; BufferedReader in = null; String result = ""; try { URL realUrl = new URL(url); // 打开和URL之间的连接 URLConnection conn = realUrl.openConnection(); // 设置通用的请求属性 conn.setRequestProperty("accept", "*/*"); conn.setRequestProperty("connection", "Keep-Alive"); conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"); conn.setRequestProperty("Authorization","APPCODE 阿里云的"); // 发送POST请求必须设置如下两行 conn.setDoOutput(true); conn.setDoInput(true); // 获取URLConnection对象对应的输出流 out = new PrintWriter(conn.getOutputStream()); // 发送请求参数 out.print(param); // flush输出流的缓冲 out.flush(); // 定义BufferedReader输入流来读取URL的响应 in = new BufferedReader( new InputStreamReader(conn.getInputStream())); String line; while ((line = in.readLine()) != null) { result += "/n" + line; } } catch (Exception e) { System.out.println("发送POST请求出现异常!" + e); e.printStackTrace(); } // 使用finally块来关闭输出流、输入流 finally { try { if (out != null) { out.close(); } if (in != null) { in.close(); } } catch (IOException ex) { ex.printStackTrace(); } } return result; } // 提供主方法,测试发送GET请求和POST请求 public static void main(String args[]) { String s1 = PostUtil.sendPost("http://dingxin.market.alicloudapi.com/dx/sendSms","mobile=手机号¶m=code:6666&tpl_id=TP1711063"); System.out.println(s1); } }