httpclient4 取得cookie信息并保存

使用HttpClient管理Cookies

最新推荐文章于 2021-02-28 08:42:48 发布

转载最新推荐文章于 2021-02-28 08:42:48 发布 · 1k 阅读

本文介绍如何使用Java的HttpClient进行HTTP请求，并演示了设置Cookies策略、读取响应内容及模拟写入和读取Cookies的过程。

HttpClient httpClient = new DefaultHttpClient();
HttpClientParams.setCookiePolicy(httpClient.getParams(), CookiePolicy.BROWSER_COMPATIBILITY);
HttpHost httpHost = new HttpHost("localhost");
HttpGet httpGet = new HttpGet("/https/");
HttpResponse response = httpClient.execute(httpHost,httpGet);
if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){
//请求成功
//取得请求内容
HttpEntity entity = response.getEntity();
//显示内容
if (entity != null) {
// 显示结果
System.out.println(EntityUtils.toString(entity,"utf-8"));
}
}
//模拟写cookie
httpGet = new HttpGet("/https/index.jsp?cookie=write");
response = httpClient.execute(httpHost,httpGet);
FileWriter fw = new FileWriter("C:/cookie.txt");
//读取cookie并保存文件
List<Cookie> cookies = ((AbstractHttpClient) httpClient).getCookieStore().getCookies();
if (cookies.isEmpty()) {
System.out.println("None");
} else {
for (int i = 0; i < cookies.size(); i++) {
System.out.println("- " + cookies.get(i).toString());
fw.write(cookies.get(i).toString()+"\r\n");
}
}
fw.close();
if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){
//请求成功
//取得请求内容
HttpEntity entity = response.getEntity();
//显示内容
if (entity != null) {
// 显示结果
System.out.println(EntityUtils.toString(entity,"utf-8"));
}
}