在用HttpClient 的最新版本4.3.3写一个网站注册时,出现了cookie rejected的问题。就是拒绝写入cookie,虽然没影响最终的注册结果,但问题总需要解决的。于是在搜索了网上的解决办法,发现那都是过去的旧版本的解决办法。新版本的4.3.3没有相关的解决办法不过总算知道那是cookie的策略设置问题。于是看了官方网站的文档http://hc.apache.org/httpcomponents-client-4.3.x/tutorial/html/statemgmt.html#d5e553,总算将问题解决了。
网上关于HttpClient4.3.3的开发文档还是比较少,于是写一个HttpClient4.3.3 post请求的代码,包括读取cookie等内容,代码如下:
package com.post.test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URLDecoder; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import org.apache.http.Consts; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.NameValuePair; import org.apache.http.client.config.CookieSpecs; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.config.Registry; import org.apache.http.config.RegistryBuilder; import org.apache.http.cookie.Cookie; import org.apache.http.cookie.CookieOrigin; import org.apache.http.cookie.CookieSpec; import org.apache.http.cookie.CookieSpecProvider; import org.apache.http.cookie.MalformedCookieException; import org.apache.http.impl.client.BasicCookieStore; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.impl.cookie.BestMatchSpecFactory; import org.apache.http.impl.cookie.BrowserCompatSpec; import org.apache.http.impl.cookie.BrowserCompatSpecFactory; import org.apache.http.message.BasicNameValuePair; import org.apache.http.protocol.HttpContext; public class Test { public static void main(String[] args) throws IOException { String url="http://localhost/"; HashMap<String, String> hashMap=new HashMap<String, String>(); hashMap.put("username", "test"); hashMap.put("password", "123456"); String content=doPost(url, hashMap); System.out.println("content="+content); } private static String doPost(String url, HashMap<String, String> hashMap) throws IOException { String content = ""; BasicCookieStore cookieStore = new BasicCookieStore(); CookieSpecProvider easySpecProvider = new CookieSpecProvider() { public CookieSpec create(HttpContext context) { return new BrowserCompatSpec() { @Override public void validate(Cookie cookie, CookieOrigin origin) throws MalformedCookieException { // Oh, I am easy } }; } }; Registry<CookieSpecProvider> r = RegistryBuilder .<CookieSpecProvider> create() .register(CookieSpecs.BEST_MATCH, new BestMatchSpecFactory()) .register(CookieSpecs.BROWSER_COMPATIBILITY, new BrowserCompatSpecFactory()) .register("easy", easySpecProvider).build(); RequestConfig requestConfig = RequestConfig.custom() .setCookieSpec("easy").setSocketTimeout(10000) .setConnectTimeout(10000).build(); CloseableHttpClient httpclient = HttpClients.custom() .setDefaultCookieSpecRegistry(r) .setDefaultRequestConfig(requestConfig) .setDefaultCookieStore(cookieStore) .build(); List<NameValuePair> nvps = new ArrayList<NameValuePair>(); if (hashMap != null) { Iterator<String> it = hashMap.keySet().iterator(); while (it.hasNext()) { String key = it.next(); String value = hashMap.get(key); nvps.add(new BasicNameValuePair(key, value)); } } HttpPost httpPost = new HttpPost(url); httpPost.setHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); httpPost.setHeader("Accept-Encoding", "gzip, deflate"); httpPost.setHeader("Accept-Language", "en-US,en;q=0.5"); httpPost.setHeader("Cache-Control", "max-age=0"); httpPost.setHeader("Connection", "keep-alive"); httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded"); httpPost.setHeader( "User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:28.0) Gecko/20100101 Firefox/28.0"); // 如果参数是中文,需要进行转码 httpPost.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8)); CloseableHttpResponse response = null; try { response = httpclient.execute(httpPost); HttpEntity entity = response.getEntity(); for (Header s : response.getAllHeaders()) { System.out.println("post header====" + s); } InputStream is = entity.getContent(); BufferedReader in = new BufferedReader(new InputStreamReader(is, Consts.UTF_8)); String line = ""; while ((line = in.readLine()) != null) { content += line; } List<Cookie> cookies = cookieStore.getCookies(); if (cookies.isEmpty()) { System.out.println("None"); } else { //读取Cookie for (int i = 0; i < cookies.size(); i++) { System.out.println("post request - " + cookies.get(i).toString()); } } } finally { if(response!=null) response.close(); } return content; } }
http://www.tuicool.com/articles/MZ36Zz
http://blog.csdn.net/zjweii/article/details/28597031