Java HttpURLConnection使用方法详解
发布时间:2020-12-14 21:09:47 所属栏目:Java 来源:网络整理
导读:本文实例为大家分享了Java HttpURLConnection使用,供大家参考,具体内容如下 包括使用HttpURLConnection执行get/post请求 package com.cn.testproject;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import
本文实例为大家分享了Java HttpURLConnection使用,供大家参考,具体内容如下 包括使用HttpURLConnection执行get/post请求 package com.cn.testproject; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; public class HttpConnectionUrlDemo { public static void main(String[] args) throws Exception { //get(); post(); } public static void get() throws Exception { String path = "http://www.baidu.com"; URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5 * 1000); conn.setRequestMethod("GET"); InputStream inStream = conn.getInputStream(); byte[] data = toByteArray(inStream); String result = new String(data,"UTF-8"); System.out.println(result); } public static void post() throws Exception { String encoding = "UTF-8"; //post的form参数(json兼职对) String params = "[{"addTime":"2011-09-19 14:23:02"[],"iccid":"1111","id":0,"imei":"2222","imsi":"3333","phoneType":"4444","remark":"aaaa","tel":"5555"}]"; String path = "http://www.baidu.com"; byte[] data = params.getBytes(encoding); URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod("POST"); conn.setDoOutput(true); conn.setRequestProperty("Content-Type","application/x-javascript; charset=" + encoding); conn.setRequestProperty("Content-Length",String.valueOf(data.length)); conn.setConnectTimeout(5 * 1000); OutputStream outStream = conn.getOutputStream(); outStream.write(data); outStream.flush(); outStream.close(); System.out.println(conn.getResponseCode()); // 响应代码 200表示成功 if (conn.getResponseCode() == 200) { InputStream inStream = conn.getInputStream(); String result = new String(toByteArray(inStream),"UTF-8"); System.out.println(result); // 响应代码 200表示成功 } } private static byte[] toByteArray(InputStream input) throws IOException { ByteArrayOutputStream output = new ByteArrayOutputStream(); byte[] buffer = new byte[4096]; int n = 0; while (-1 != (n = input.read(buffer))) { output.write(buffer,n); } return output.toByteArray(); } } GitHub:https://github.com/taz372436 以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持编程小技巧。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |