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httpClinet
httpClient多线程请求
使用httpClient可模拟请求Url获取资源,使用单线程的请求速度上会有一定的限制,参考了Apache给出的例子,自己做了测试实现多线程并发请求,以下代码需要HttpClient 4.2的包,可以在http://hc.apache.org/downloads.cgi下载
1、并发请求
复制代码
1 package generate.httpclient;
2
3 import java.util.List;
4 import java.util.concurrent.ExecutorService;
5 import java.util.concurrent.Executors;
6
7 import org.apache.http.HttpEntity;
8 import org.apache.http.HttpResponse;
9 import org.apache.http.client.HttpClient;
10 import org.apache.http.client.methods.HttpGet;
11 import org.apache.http.conn.ClientConnectionManager;
12 import org.apache.http.conn.params.ConnManagerParams;
13 import org.apache.http.conn.scheme.PlainSocketFactory;
14 import org.apache.http.conn.scheme.Scheme;
15 import org.apache.http.conn.scheme.SchemeRegistry;
16 import org.apache.http.impl.client.DefaultHttpClient;
17 import org.apache.http.impl.conn.PoolingClientConnectionManager;
18 import org.apache.http.params.BasicHttpParams;
19 import org.apache.http.params.HttpConnectionParams;
20 import org.apache.http.params.HttpParams;
21 import org.apache.http.protocol.BasicHttpContext;
22 import org.apache.http.protocol.HttpContext;
23 import org.apache.http.util.EntityUtils;
24
25 public class ThreadPoolHttpClient {
26 // 线程池
27 private ExecutorService exe = null;
28 // 线程池的容量
29 private static final int POOL_SIZE = 20;
30 private HttpClient client = null;
31 String[] urls=null;
32 public ThreadPoolHttpClient(String[] urls){
33 this.urls=urls;
34 }
35 public void test() throws Exception {
36 exe = Executors.newFixedThreadPool(POOL_SIZE);
37 HttpParams params =new BasicHttpParams();
38 /* 从连接池中取连接的超时时间 */
39 ConnManagerParams.setTimeout(params, 1000);
40 /* 连接超时 */
41 HttpConnectionParams.setConnectionTimeout(params, 2000);
42 /* 请求超时 */
43 HttpConnectionParams.setSoTimeout(params, 4000);
44 SchemeRegistry schemeRegistry = new SchemeRegistry();
45 schemeRegistry.register(
46 new Scheme("http", 80, PlainSocketFactory.getSocketFactory()));
47
48 //ClientConnectionManager cm = new PoolingClientConnectionManager(schemeRegistry);
49 PoolingClientConnectionManager cm=new PoolingClientConnectionManager(schemeRegistry);
50 cm.setMaxTotal(10);
51 final HttpClient httpClient = new DefaultHttpClient(cm,params);
52
53 // URIs to perform GETs on
54 final String[] urisToGet = urls;
55 /* 有多少url创建多少线程,url多时机子撑不住
56 // create a thread for each URI
57 GetThread[] threads = new GetThread[urisToGet.length];
58 for (int i = 0; i < threads.length; i++) {
59 HttpGet httpget = new HttpGet(urisToGet[i]);
60 threads[i] = new GetThread(httpClient, httpget);
61 }
62 // start the threads
63 for (int j = 0; j < threads.length; j++) {
64 threads[j].start();
65 }
66
67 // join the threads,等待所有请求完成
68 for (int j = 0; j < threads.length; j++) {
69 threads[j].join();
70 }
71 使用线程池*/
72 for (int i = 0; i < urisToGet.length; i++) {
73 final int j=i;
74 System.out.println(j);
75 HttpGet httpget = new HttpGet(urisToGet[i]);
76 exe.execute( new GetThread(httpClient, httpget));
77 }
78
79
80 //创建线程池,每次调用POOL_SIZE
81 /*
82 for (int i = 0; i < urisToGet.length; i++) {
83 final int j=i;
84 System.out.println(j);
85 exe.execute(new Thread() {
86 @Override
87 public void run() {
88 this.setName("threadsPoolClient"+j);
89
90 try {
91 this.sleep(100);
92 System.out.println(j);
93 } catch (InterruptedException e) {
94 // TODO Auto-generated catch block
95 e.printStackTrace();
96 }
97
98 HttpGet httpget = new HttpGet(urisToGet[j]);
99 new GetThread(httpClient, httpget).get();
100 }
101
102
103
104 });
105 }
106
107 */
108 //exe.shutdown();
109 System.out.println("Done");
110 }
111 static class GetThread extends Thread{
112
113 private final HttpClient httpClient;
114 private final HttpContext context;
115 private final HttpGet httpget;
116
117 public GetThread(HttpClient httpClient, HttpGet httpget) {
118 this.httpClient = httpClient;
119 this.context = new BasicHttpContext();
120 this.httpget = httpget;
121 }
122 @Override
123 public void run(){
124 this.setName("threadsPoolClient");
125 try {
126 Thread.sleep(5000);
127 } catch (InterruptedException e) {
128 // TODO Auto-generated catch block
129 e.printStackTrace();
130 }
131 get();
132 }
133
134 public void get() {
135 try {
136 HttpResponse response = this.httpClient.execute(this.httpget, this.context);
137 HttpEntity entity = response.getEntity();
138 if (entity != null) {
139 System.out.println(this.httpget.getURI()+": status"+response.getStatusLine().toString());
140 }
141 // ensure the connection gets released to the manager
142 EntityUtils.consume(entity);
143 } catch (Exception ex) {
144 this.httpget.abort();
145 }finally{
146 httpget.releaseConnection();
147 }
148 }
149 }
150 }
复制代码
2、多线程异步请求
复制代码
1 package generate.httpclient;
2
3 import java.io.ByteArrayOutputStream;
4 import java.io.IOException;
5 import java.io.InputStream;
6 import java.util.ArrayList;
7 import java.util.HashMap;
8 import java.util.List;
9 import java.util.Map;
10 import java.util.concurrent.CountDownLatch;
11
12 import org.apache.http.HttpResponse;
13 import org.apache.http.client.methods.HttpGet;
14 import org.apache.http.concurrent.FutureCallback;
15 import org.apache.http.impl.nio.client.DefaultHttpAsyncClient;
16 import org.apache.http.nio.client.HttpAsyncClient;
17 import org.apache.http.nio.reactor.IOReactorException;
18
19 public class AsynClient{
20 /**
21 * @param args
22 * @throws IOReactorException
23 * @throws InterruptedException
24 */
25 private List<String> urls;
26 private HandlerFailThread failHandler;
27 public AsynClient(List<String> list){
28 failHandler=new HandlerFailThread();
29 urls=list;
30 }
31 public Map<String,String> asynGet() throws IOReactorException,
32 InterruptedException {
33 final HttpAsyncClient httpclient = new DefaultHttpAsyncClient();
34 httpclient.start();
35 int urlLength=urls.size();
36 HttpGet[] requests = new HttpGet[urlLength];
37 int i=0;
38 for(String url : urls){
39 requests[i]=new HttpGet(url);
40 i++;
41 }
42 final CountDownLatch latch = new CountDownLatch(requests.length);
43 final Map<String, String> responseMap=new HashMap<String, String>();
44 try {
45 for (final HttpGet request : requests) {
46 httpclient.execute(request, new FutureCallback<HttpResponse>() {
47
48 public void completed(final HttpResponse response) {
49 latch.countDown();
50 responseMap.put(request.getURI().toString(), response.getStatusLine().toString());
51 try {
52 System.out.println(request.getRequestLine() + "->"
53 + response.getStatusLine()+"->");
54 //+readInputStream(response.getEntity().getContent())
55
56 } catch (IllegalStateException e) {
57 failHandler.putFailUrl(request.getURI().toString(),
58 response.getStatusLine().toString());
59 e.printStackTrace();
60 } catch (Exception e) {
61 failHandler.putFailUrl(request.getURI().toString(),
62 response.getStatusLine().toString());
63 e.printStackTrace();
64 }
65 }
66
67 public void failed(final Exception ex) {
68 latch.countDown();
69 ex.printStackTrace();
70 failHandler.putFailUrl(request.getURI().toString(),
71 ex.getMessage());
72 }
73
74 public void cancelled() {
75 latch.countDown();
76 }
77
78 });
79 }
80 System.out.println("Doing...");
81 } finally {
82 latch.await();
83 httpclient.shutdown();
84 }
85 System.out.println("Done");
86 failHandler.printFailUrl();
87 return responseMap;
88 }
89 private String readInputStream(InputStream input) throws IOException{
90 byte[] buffer = new byte[128];
91 int len = 0;
92 ByteArrayOutputStream bytes = new ByteArrayOutputStream();
93 while((len = input.read(buffer)) >= 0) {
94 bytes.write(buffer, 0, len);
95 }
96 return bytes.toString();
97 }
98 /**
99 * Test
100 * @param args
101 */
102 public static void main(String[] args) {
103 List<String> urls=new ArrayList<String>();
104 urls.add("http://127.0.0.1/examples/servlets/");
105 urls.add("http://127.0.0.1/examples/servlets/");
106 urls.add("http://127.0.0.1/examples/servlets/");
107 for(int i=0;i<10;i++){
108 urls.addAll(urls);
109 }
110 System.out.println(urls.size());
111 AsynClient client=new AsynClient(urls);
112 try {
113 client.asynGet();
114 } catch (IOReactorException e) {
115 e.printStackTrace();
116 } catch (InterruptedException e) {
117 e.printStackTrace();
118 }
119 System.out.println("done");
120 }
121 }
复制代码
创建一个线程记录失败的请求
复制代码
1 package generate.httpclient;
2
3 import java.util.HashMap;
4 import java.util.Map;
5
6 public class HandlerFailThread extends Thread{
7 Map<String, String> failUrl=new HashMap<String, String>();
8 public void putFailUrl(String url,String status){
9 synchronized (failUrl) {
10 failUrl.put(url,status);
11 }
12 }
13 @Override
14 public void run() {
15 while(true){
16
17 }
18 }
19 public void printFailUrl(){
20 for(Map.Entry<String, String> m: failUrl.entrySet()){
21 System.out.println("****fail:url:"+m.getKey()+ " code :"+m.getValue());
22 }
23 }
24 }
复制代码
异步请求,也可通过pool管理,例如
ConnectingIOReactor nio=new DefaultConnectingIOReactor();
PoolingClientAsyncConnectionManager manager=new PoolingClientAsyncConnectionManager(nio);
manager.setMaxTotal(1000);
manager.setDefaultMaxPerRoute(100);
HttpParams params=new BasicHttpParams();
/* 连接超时 */
HttpConnectionParams.setConnectionTimeout(params, 10000);
/* 请求超时 */
HttpConnectionParams.setSoTimeout(params, 60*1000);
DefaultHttpAsyncClient.setDefaultHttpParams(params);
final HttpAsyncClient httpclient = new DefaultHttpAsyncClient(manager);
httpclient.start();
使用httpClient可模拟请求Url获取资源,使用单线程的请求速度上会有一定的限制,参考了Apache给出的例子,自己做了测试实现多线程并发请求,以下代码需要HttpClient 4.2的包,可以在http://hc.apache.org/downloads.cgi下载
1、并发请求
复制代码
1 package generate.httpclient;
2
3 import java.util.List;
4 import java.util.concurrent.ExecutorService;
5 import java.util.concurrent.Executors;
6
7 import org.apache.http.HttpEntity;
8 import org.apache.http.HttpResponse;
9 import org.apache.http.client.HttpClient;
10 import org.apache.http.client.methods.HttpGet;
11 import org.apache.http.conn.ClientConnectionManager;
12 import org.apache.http.conn.params.ConnManagerParams;
13 import org.apache.http.conn.scheme.PlainSocketFactory;
14 import org.apache.http.conn.scheme.Scheme;
15 import org.apache.http.conn.scheme.SchemeRegistry;
16 import org.apache.http.impl.client.DefaultHttpClient;
17 import org.apache.http.impl.conn.PoolingClientConnectionManager;
18 import org.apache.http.params.BasicHttpParams;
19 import org.apache.http.params.HttpConnectionParams;
20 import org.apache.http.params.HttpParams;
21 import org.apache.http.protocol.BasicHttpContext;
22 import org.apache.http.protocol.HttpContext;
23 import org.apache.http.util.EntityUtils;
24
25 public class ThreadPoolHttpClient {
26 // 线程池
27 private ExecutorService exe = null;
28 // 线程池的容量
29 private static final int POOL_SIZE = 20;
30 private HttpClient client = null;
31 String[] urls=null;
32 public ThreadPoolHttpClient(String[] urls){
33 this.urls=urls;
34 }
35 public void test() throws Exception {
36 exe = Executors.newFixedThreadPool(POOL_SIZE);
37 HttpParams params =new BasicHttpParams();
38 /* 从连接池中取连接的超时时间 */
39 ConnManagerParams.setTimeout(params, 1000);
40 /* 连接超时 */
41 HttpConnectionParams.setConnectionTimeout(params, 2000);
42 /* 请求超时 */
43 HttpConnectionParams.setSoTimeout(params, 4000);
44 SchemeRegistry schemeRegistry = new SchemeRegistry();
45 schemeRegistry.register(
46 new Scheme("http", 80, PlainSocketFactory.getSocketFactory()));
47
48 //ClientConnectionManager cm = new PoolingClientConnectionManager(schemeRegistry);
49 PoolingClientConnectionManager cm=new PoolingClientConnectionManager(schemeRegistry);
50 cm.setMaxTotal(10);
51 final HttpClient httpClient = new DefaultHttpClient(cm,params);
52
53 // URIs to perform GETs on
54 final String[] urisToGet = urls;
55 /* 有多少url创建多少线程,url多时机子撑不住
56 // create a thread for each URI
57 GetThread[] threads = new GetThread[urisToGet.length];
58 for (int i = 0; i < threads.length; i++) {
59 HttpGet httpget = new HttpGet(urisToGet[i]);
60 threads[i] = new GetThread(httpClient, httpget);
61 }
62 // start the threads
63 for (int j = 0; j < threads.length; j++) {
64 threads[j].start();
65 }
66
67 // join the threads,等待所有请求完成
68 for (int j = 0; j < threads.length; j++) {
69 threads[j].join();
70 }
71 使用线程池*/
72 for (int i = 0; i < urisToGet.length; i++) {
73 final int j=i;
74 System.out.println(j);
75 HttpGet httpget = new HttpGet(urisToGet[i]);
76 exe.execute( new GetThread(httpClient, httpget));
77 }
78
79
80 //创建线程池,每次调用POOL_SIZE
81 /*
82 for (int i = 0; i < urisToGet.length; i++) {
83 final int j=i;
84 System.out.println(j);
85 exe.execute(new Thread() {
86 @Override
87 public void run() {
88 this.setName("threadsPoolClient"+j);
89
90 try {
91 this.sleep(100);
92 System.out.println(j);
93 } catch (InterruptedException e) {
94 // TODO Auto-generated catch block
95 e.printStackTrace();
96 }
97
98 HttpGet httpget = new HttpGet(urisToGet[j]);
99 new GetThread(httpClient, httpget).get();
100 }
101
102
103
104 });
105 }
106
107 */
108 //exe.shutdown();
109 System.out.println("Done");
110 }
111 static class GetThread extends Thread{
112
113 private final HttpClient httpClient;
114 private final HttpContext context;
115 private final HttpGet httpget;
116
117 public GetThread(HttpClient httpClient, HttpGet httpget) {
118 this.httpClient = httpClient;
119 this.context = new BasicHttpContext();
120 this.httpget = httpget;
121 }
122 @Override
123 public void run(){
124 this.setName("threadsPoolClient");
125 try {
126 Thread.sleep(5000);
127 } catch (InterruptedException e) {
128 // TODO Auto-generated catch block
129 e.printStackTrace();
130 }
131 get();
132 }
133
134 public void get() {
135 try {
136 HttpResponse response = this.httpClient.execute(this.httpget, this.context);
137 HttpEntity entity = response.getEntity();
138 if (entity != null) {
139 System.out.println(this.httpget.getURI()+": status"+response.getStatusLine().toString());
140 }
141 // ensure the connection gets released to the manager
142 EntityUtils.consume(entity);
143 } catch (Exception ex) {
144 this.httpget.abort();
145 }finally{
146 httpget.releaseConnection();
147 }
148 }
149 }
150 }
复制代码
2、多线程异步请求
复制代码
1 package generate.httpclient;
2
3 import java.io.ByteArrayOutputStream;
4 import java.io.IOException;
5 import java.io.InputStream;
6 import java.util.ArrayList;
7 import java.util.HashMap;
8 import java.util.List;
9 import java.util.Map;
10 import java.util.concurrent.CountDownLatch;
11
12 import org.apache.http.HttpResponse;
13 import org.apache.http.client.methods.HttpGet;
14 import org.apache.http.concurrent.FutureCallback;
15 import org.apache.http.impl.nio.client.DefaultHttpAsyncClient;
16 import org.apache.http.nio.client.HttpAsyncClient;
17 import org.apache.http.nio.reactor.IOReactorException;
18
19 public class AsynClient{
20 /**
21 * @param args
22 * @throws IOReactorException
23 * @throws InterruptedException
24 */
25 private List<String> urls;
26 private HandlerFailThread failHandler;
27 public AsynClient(List<String> list){
28 failHandler=new HandlerFailThread();
29 urls=list;
30 }
31 public Map<String,String> asynGet() throws IOReactorException,
32 InterruptedException {
33 final HttpAsyncClient httpclient = new DefaultHttpAsyncClient();
34 httpclient.start();
35 int urlLength=urls.size();
36 HttpGet[] requests = new HttpGet[urlLength];
37 int i=0;
38 for(String url : urls){
39 requests[i]=new HttpGet(url);
40 i++;
41 }
42 final CountDownLatch latch = new CountDownLatch(requests.length);
43 final Map<String, String> responseMap=new HashMap<String, String>();
44 try {
45 for (final HttpGet request : requests) {
46 httpclient.execute(request, new FutureCallback<HttpResponse>() {
47
48 public void completed(final HttpResponse response) {
49 latch.countDown();
50 responseMap.put(request.getURI().toString(), response.getStatusLine().toString());
51 try {
52 System.out.println(request.getRequestLine() + "->"
53 + response.getStatusLine()+"->");
54 //+readInputStream(response.getEntity().getContent())
55
56 } catch (IllegalStateException e) {
57 failHandler.putFailUrl(request.getURI().toString(),
58 response.getStatusLine().toString());
59 e.printStackTrace();
60 } catch (Exception e) {
61 failHandler.putFailUrl(request.getURI().toString(),
62 response.getStatusLine().toString());
63 e.printStackTrace();
64 }
65 }
66
67 public void failed(final Exception ex) {
68 latch.countDown();
69 ex.printStackTrace();
70 failHandler.putFailUrl(request.getURI().toString(),
71 ex.getMessage());
72 }
73
74 public void cancelled() {
75 latch.countDown();
76 }
77
78 });
79 }
80 System.out.println("Doing...");
81 } finally {
82 latch.await();
83 httpclient.shutdown();
84 }
85 System.out.println("Done");
86 failHandler.printFailUrl();
87 return responseMap;
88 }
89 private String readInputStream(InputStream input) throws IOException{
90 byte[] buffer = new byte[128];
91 int len = 0;
92 ByteArrayOutputStream bytes = new ByteArrayOutputStream();
93 while((len = input.read(buffer)) >= 0) {
94 bytes.write(buffer, 0, len);
95 }
96 return bytes.toString();
97 }
98 /**
99 * Test
100 * @param args
101 */
102 public static void main(String[] args) {
103 List<String> urls=new ArrayList<String>();
104 urls.add("http://127.0.0.1/examples/servlets/");
105 urls.add("http://127.0.0.1/examples/servlets/");
106 urls.add("http://127.0.0.1/examples/servlets/");
107 for(int i=0;i<10;i++){
108 urls.addAll(urls);
109 }
110 System.out.println(urls.size());
111 AsynClient client=new AsynClient(urls);
112 try {
113 client.asynGet();
114 } catch (IOReactorException e) {
115 e.printStackTrace();
116 } catch (InterruptedException e) {
117 e.printStackTrace();
118 }
119 System.out.println("done");
120 }
121 }
复制代码
创建一个线程记录失败的请求
复制代码
1 package generate.httpclient;
2
3 import java.util.HashMap;
4 import java.util.Map;
5
6 public class HandlerFailThread extends Thread{
7 Map<String, String> failUrl=new HashMap<String, String>();
8 public void putFailUrl(String url,String status){
9 synchronized (failUrl) {
10 failUrl.put(url,status);
11 }
12 }
13 @Override
14 public void run() {
15 while(true){
16
17 }
18 }
19 public void printFailUrl(){
20 for(Map.Entry<String, String> m: failUrl.entrySet()){
21 System.out.println("****fail:url:"+m.getKey()+ " code :"+m.getValue());
22 }
23 }
24 }
复制代码
异步请求,也可通过pool管理,例如
ConnectingIOReactor nio=new DefaultConnectingIOReactor();
PoolingClientAsyncConnectionManager manager=new PoolingClientAsyncConnectionManager(nio);
manager.setMaxTotal(1000);
manager.setDefaultMaxPerRoute(100);
HttpParams params=new BasicHttpParams();
/* 连接超时 */
HttpConnectionParams.setConnectionTimeout(params, 10000);
/* 请求超时 */
HttpConnectionParams.setSoTimeout(params, 60*1000);
DefaultHttpAsyncClient.setDefaultHttpParams(params);
final HttpAsyncClient httpclient = new DefaultHttpAsyncClient(manager);
httpclient.start();
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1. **Post请求**: ...最后,通过`HttpClient`的`execute`方法发送请求并获取响应。 ...2. **Get请求**: ...只需提供URL作为构造函数的参数,然后同样通过`HttpClient`的`execute`方法执行请求。... 这个工具类可能封装了上述...
在IT行业中,C#是一种广泛使用的编程语言,尤其在开发Windows桌面应用、Web应用以及游戏等领域。本篇文章将深入探讨如何使用C#实现POST方式提交Form表单,这对于网络应用程序的开发至关重要,因为它允许我们向服务器...
3. httpclinet对象,能轻松的让你对接支付宝和微信,Demo内含支付宝和微信当面付功能,支持同步(实时调用-实时返回结果)和异步(先调用,后台订阅事件返回结果通知)调用 4. sciter和blink(chorm)界面引擎,可以...
本教程将详细讲解如何实现Android客户端的文件上传,以及服务端接收文件的过程,主要涉及的技术包括HttpClinet和异步http框架AsyncHttpClient。 首先,我们来看Android客户端的文件上传。传统的HTTP请求库...
HttpClientHelper 是一个C#编写的工具类,主要目的是简化HTTP客户端操作,提供同步和异步的请求方法,返回数据格式多样,包括字符串、泛型类型和XML。... ...HttpClientHelper 对这个类进行了封装,使得开发者无需直接与...
这个实例主要涉及如何配置HttpClient来忽略SSL(Secure Socket Layer)验证,这对于在开发和测试环境中处理自签名证书或未认证的服务器非常有用。以下将详细介绍HttpClient的使用以及如何进行SSL验证的忽略。...
"httpClinet"可能是一个专门为Windows平台设计的HTTP客户端应用程序,它的特性包括易用性和人性化界面,使得它成为程序员调测HTTP程序时的理想选择。 HTTP协议是互联网上应用最为广泛的一种网络协议,用于传输超...
...在本文中,我们将深入探讨这个库的核心特性、用途、以及如何有效地利用它来构建网络应用。 ...此库特别适用于需要与Web服务器进行复杂交互的应用程序,如Web服务客户端、数据抓取或自动化测试工具。...
在IT行业中,网络通信是至关重要的,而HttpClient作为Apache开源组织提供的一款强大的HTTP客户端实现库,广泛用于Java开发者进行HTTP请求处理。... ...然而,自签名证书是由服务器自身签发的,而非由公认的CA签发,这可能...
* 使用 GetMethod 来访问一个 URL 对应的网页,实现步骤: 1:生成一个 HttpClinet 对象并设置相应的参数。 * 2:生成一个 GetMethod 对象并设置响应的参数。 3:用 HttpClinet 生成的对象来执行 GetMethod 生成的Get ...
1. **HttpClinet**:HttpClinet是Java中的一个HTTP客户端API,用于执行HTTP请求,获取网页内容。它支持HTTP/1.1协议,并提供了丰富的功能,如设置请求头、处理重定向、处理cookies等,是构建网络爬虫的重要组件。 2...
综合以上信息,我们可以理解这是一个Android应用,它通过HttpClinet从sgs.sgamer.com抓取新闻数据,然后在AppWidgetProvider控制的小部件上展示这些新闻的概要。同时,应用还利用Notification提醒用户有新新闻,并...
【压缩包子文件的文件名称列表】:7.HTTPClinet 这个文件名可能是指一个包含了HTTP客户端实现的源代码文件,可能是C或C++语言编写。通常,这样的文件会包含初始化W5100S,设置TCP连接,发送HTTP请求,接收响应,...