httpclient

java爬虫.HttpClient.请求参数

由 假装没事ソ 提交于 2020-02-07 15:47:27
HttpClient.请求参数 有时候因为网络，或者目标服务器的原因，请求需要更长的时间才能完成，我们需要自定义相关时间 package cn . csdn . crawlar . test ; import org . apache . http . client . config . RequestConfig ; import org . apache . http . client . methods . CloseableHttpResponse ; import org . apache . http . client . methods . HttpGet ; import org . apache . http . impl . client . CloseableHttpClient ; import org . apache . http . impl . client . HttpClients ; import org . apache . http . util . EntityUtils ; import java . io . IOException ; public class HttpConfigTest { public static void main ( String [ ] args ) { //创建HttpClient对象

Problem Deploying to Artifactory with Checksum (C#)

由 强颜欢笑 提交于 2020-02-06 08:44:05
问题 Okay, Well, I'm trying to figure out how to do this. I've ready the API and and yet this never works. using (HttpClient client = new HttpClient()) { if (!path.EndsWith("/")) path = $"{path}/"; string url = config.CreateRequest(client, null, $"{path}{file.Name}"); string sha1 = JFrogLoader.GetSha1Hash(file); string sha256 = JFrogLoader.GetSha256Hash(file); string md5 = JFrogLoader.GetMD5Hash(file); using (Stream stream = file.Open(FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {

Problem Deploying to Artifactory with Checksum (C#)

由 橙三吉。 提交于 2020-02-06 08:42:24
问题 Okay, Well, I'm trying to figure out how to do this. I've ready the API and and yet this never works. using (HttpClient client = new HttpClient()) { if (!path.EndsWith("/")) path = $"{path}/"; string url = config.CreateRequest(client, null, $"{path}{file.Name}"); string sha1 = JFrogLoader.GetSha1Hash(file); string sha256 = JFrogLoader.GetSha256Hash(file); string md5 = JFrogLoader.GetMD5Hash(file); using (Stream stream = file.Open(FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {

System.Net.Http.HttpRequestException: Cannot write more bytes to the buffer than the configured maximum buffer size: 2147483647 [duplicate]

由 帅比萌擦擦* 提交于 2020-02-06 08:11:05
问题 This question already has an answer here : HttpClient buffer size limit exceeded (1 answer) Closed last month . I am downloading a file from a remote server. The file is more than 2GB in size. I am requesting the file by calling await _client.SendAsync(message, HttpCompletionOption.ResponseHeadersRead); However, the call is throwing the above exception. How can I download a file > 2GB? 回答1: Your problem is very similar with following page. HttpClient buffer size limit exceeded Hope this will

System.Net.Http.HttpRequestException: Cannot write more bytes to the buffer than the configured maximum buffer size: 2147483647 [duplicate]

由 醉酒当歌 提交于 2020-02-06 08:11:01
问题 This question already has an answer here : HttpClient buffer size limit exceeded (1 answer) Closed last month . I am downloading a file from a remote server. The file is more than 2GB in size. I am requesting the file by calling await _client.SendAsync(message, HttpCompletionOption.ResponseHeadersRead); However, the call is throwing the above exception. How can I download a file > 2GB? 回答1: Your problem is very similar with following page. HttpClient buffer size limit exceeded Hope this will

net core体系-网络数据采集（AngleSharp）-1初探

由 有些话、适合烂在心里 提交于 2020-02-05 23:17:13
有这么一本Python的书: <<Python 网络数据采集>> 我准备用.NET Core及第三方库实现里面所有的例子. 这是第一部分, 主要使用的是AngleSharp: https://anglesharp.github.io/ (文章的章节书与该书是对应的) 发送Http请求 在python里面这样发送http请求, 它使用的是python的标准库urllib: 在.NET Core里面, 你可以使用 HttpClient , 相应的C#代码如下: var client = new HttpClient(); HttpResponseMessage response = await client.GetAsync("http://pythonscraping.com/pages/page1.html"); response.EnsureSuccessStatusCode(); var responseBody = await response.Content.ReadAsStringAsync(); Console.WriteLine(responseBody); return responseBody; 或者可以简写为: var client = new HttpClient(); var responseBody = await client

.NET Core 网络数据采集 -- 使用AngleSharp做html解析

由 梦想与她 提交于 2020-02-05 22:43:13
有这么一本Python的书: <<Python 网络数据采集>> 我准备用.NET Core及第三方库实现里面所有的例子. 这是第一部分, 主要使用的是AngleSharp: https://anglesharp.github.io/ (文章的章节书与该书是对应的) 第1章 初见网络爬虫 发送Http请求 在python里面这样发送http请求, 它使用的是python的标准库urllib: 在.NET Core里面, 你可以使用 HttpClient , 相应的C#代码如下: var client = new HttpClient(); HttpResponseMessage response = await client.GetAsync("http://pythonscraping.com/pages/page1.html"); response.EnsureSuccessStatusCode(); var responseBody = await response.Content.ReadAsStringAsync(); Console.WriteLine(responseBody); return responseBody; 或者可以简写为: var client = new HttpClient(); var responseBody = await client

HTTPClient案例

由 假如想象 提交于 2020-02-05 19:35:11
依赖 <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.2</version> </dependency> <!-- https://mvnrepository.com/artifact/javax/javaee-api --> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> <scope>provided</scope> </dependency> GET public static void main(String[] args)throws Exception { //步骤一：创建一个链接 CloseableHttpClient client= HttpClients.createDefault(); //创建一个请求 HttpGet httpGet=new HttpGet("https://kyfw.12306.cn/otn/leftTicket/queryZ?leftTicketDTO.train_date=2020-02-05&leftTicketDTO.from

Android webservice GET request replies only a part of the XML response

由 廉价感情. 提交于 2020-02-04 01:30:10
问题 I'm trying to connect to a webservice offered by my heating at home. Putting the request URL into Chrome results in a complete XML file. Subsequently I tried to do the same programmatically with an Android application, which unfortunately only replies about the half of the XML file. I already tried several attempts, amongst others a simple HttpConnection: private void androidHttpConnect() { HttpURLConnection urlConnection=null; try { URL url = new URL("http://10.0.0.140:8080/user/menu");

HTTP：Java实现HTTP请求的三种方式

由 你离开我真会死。 提交于 2020-02-01 17:02:36
目前JAVA实现HTTP请求的方法用的最多的有两种： 一种是通过HTTPClient这种第三方的开源框架去实现。HTTPClient对HTTP的封装性比较不错，通过它基本上能够满足我们大部分的需求， HttpClient3.1 是 org.apache.commons.httpclient下操作远程 url的工具包，虽然已不再更新，但实现工作中使用httpClient3.1的代码还是很多 ，HttpClient4.5是org.apache.http.client下操作远程 url的工具包，最新的； 另一种则是通过HttpURLConnection去实现，HttpURLConnection是JAVA的标准类，是JAVA比较原生的一种实现方式。 第一种方式：java原生HttpURLConnection package com.powerX.httpClient; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net
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