使用httpclient模拟登录(Cookies使用)
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原文地址:http://www.oschina.net/code/snippet_179804_46120
[1].[代码] [Java]代码 跳至[1]
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import
java.io.BufferedReader;
import
java.io.File;
import
java.io.FileOutputStream;
import
java.io.IOException;
import
java.io.InputStream;
import
java.io.InputStreamReader;
import
java.util.ArrayList;
import
java.util.List;
import
org.apache.http.HttpEntity;
import
org.apache.http.HttpResponse;
import
org.apache.http.NameValuePair;
import
org.apache.http.client.CookieStore;
import
org.apache.http.client.HttpClient;
import
org.apache.http.client.entity.UrlEncodedFormEntity;
import
org.apache.http.client.methods.HttpGet;
import
org.apache.http.client.methods.HttpPost;
import
org.apache.http.cookie.Cookie;
import
org.apache.http.impl.client.AbstractHttpClient;
import
org.apache.http.impl.client.BasicCookieStore;
import
org.apache.http.impl.client.DefaultHttpClient;
import
org.apache.http.impl.cookie.BasicClientCookie;
import
org.apache.http.message.BasicNameValuePair;
import
org.apache.http.util.EntityUtils;
import
org.junit.Test;
public
class
HttpClientLoginTest {
@Test
// 获取一个HTML页面的内容,一个简单的get应用
public
void
grabPageHTML()
throws
Exception {
HttpClient httpclient =
new
DefaultHttpClient();
HttpGet httpget =
new
HttpGet(
"http://www.baidu.com/"
);
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
String html = EntityUtils.toString(entity,
"GBK"
);
// releaseConnection等同于reset,作用是重置request状态位,为下次使用做好准备。
// 其实就是用一个HttpGet获取多个页面的情况下有效果;否则可以忽略此方法。
httpget.releaseConnection();
System.out.println(html);
}
// 下载一个文件到本地(本示范中为一个验证码图片)
@Test
public
void
downloadFile()
throws
Exception {
String url =
"http://www.lashou.com/account/captcha"
;
File dir =
new
File(
"D:\\TDDOWNLOAD"
);
if
(!dir.exists()) {
dir.mkdirs();
}
String destfilename =
"D:\\TDDOWNLOAD\\yz.png"
;
HttpClient httpclient =
new
DefaultHttpClient();
HttpGet httpget =
new
HttpGet(url);
File file =
new
File(destfilename);
if
(file.exists()) {
file.delete();
}
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
InputStream in = entity.getContent();
try
{
FileOutputStream fout =
new
FileOutputStream(file);
int
l = -
1
;
byte
[] tmp =
new
byte
[
2048
];
while
((l = in.read(tmp)) != -
1
) {
fout.write(tmp);
}
fout.close();
}
finally
{
// 在用InputStream处理HttpEntity时,切记要关闭低层流。
in.close();
}
httpget.releaseConnection();
}
@Test
// Post方法,模拟表单提交参数登录到网站。
// 结合了上面两个方法:grabPageHTML/downloadFile,同时增加了Post的代码。
public
void
login2Lashou()
throws
Exception {
// 第一步:先下载验证码到本地
String url =
"http://www.lashou.com/account/captcha"
;
String destfilename =
"D:\\TDDOWNLOAD\\yz.png"
;
HttpClient httpclient =
new
DefaultHttpClient();
HttpGet httpget =
new
HttpGet(url);
File file =
new
File(destfilename);
if
(file.exists()) {
file.delete();
}
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
InputStream in = entity.getContent();
try
{
FileOutputStream fout =
new
FileOutputStream(file);
int
l = -
1
;
byte
[] tmp =
new
byte
[
2048
];
while
((l = in.read(tmp)) != -
1
) {
fout.write(tmp);
}
fout.close();
}
finally
{
in.close();
}
httpget.releaseConnection();
// 第二步:用Post方法带若干参数尝试登录,需要手工输入下载验证码中显示的字母、数字
BufferedReader br =
new
BufferedReader(
new
InputStreamReader(System.in));
System.out.println(
"请输入下载下来的验证码中显示的数字..."
);
String yan = br.readLine();
HttpPost httppost =
new
HttpPost(
"http://www.lashou.com/account/login/"
);
List<NameValuePair> params =
new
ArrayList<NameValuePair>();
params.add(
new
BasicNameValuePair(
"user_id"
,
"testuser007"
));
params.add(
new
BasicNameValuePair(
"pwd"
,
"asdfg123"
));
params.add(
new
BasicNameValuePair(
"yan"
, yan));
params.add(
new
BasicNameValuePair(
"save_user"
,
"on"
));
params.add(
new
BasicNameValuePair(
"save_pwd"
,
"on"
));
params.add(
new
BasicNameValuePair(
"sub"
,
"登录"
));
httppost.setEntity(
new
UrlEncodedFormEntity(params));
response = httpclient.execute(httppost);
entity = response.getEntity();
// 在这里可以用Jsoup之类的工具对返回结果进行分析,以判断登录是否成功
String postResult = EntityUtils.toString(entity,
"GBK"
);
// 我们这里只是简单的打印出当前Cookie值以判断登录是否成功。
CookieStore cookieStore = ((AbstractHttpClient) httpclient).getCookieStore();
List<Cookie> cookies = ((AbstractHttpClient) httpclient)
.getCookieStore().getCookies();
for
(Cookie cookie : cookies)
System.out.println(
"cookie begin***\n"
+ cookie +
"\n cookie end"
);
httppost.releaseConnection();
// 第三步:打开会员页面以判断登录成功(未登录用户是打不开会员页面的)
String memberpage =
"http://www.lashou.com/account/orders/"
;
httpget =
new
HttpGet(memberpage);
response = httpclient.execute(httpget);
// 必须是同一个HttpClient!
entity = response.getEntity();
String html = EntityUtils.toString(entity,
"GBK"
);
httpget.releaseConnection();
System.out.println(html);
}
@Test
public
void
testSystemIn()
throws
IOException {
BufferedReader reader =
new
BufferedReader(
new
InputStreamReader(
System.in));
String hello = reader.readLine();
System.out.println(hello);
}
@Test
// 设置已获取的cookie,查看需要登录后才能查看的页面
public
void
testGetinfoByLoginCookie()
throws
Exception, IOException {
DefaultHttpClient httpclient =
new
DefaultHttpClient();
CookieStore cookieStore =
new
BasicCookieStore();
BasicClientCookie cookie1 =
new
BasicClientCookie(
"ThinkID"
,
"5s4tmqem08gh091v3egoa7sqf7"
);
cookie1.setDomain(
".lashou.com"
);
BasicClientCookie cookie2 =
new
BasicClientCookie(
"city_b"
,
"2419"
);
cookie2.setDomain(
"lashou.com"
);
BasicClientCookie cookie3 =
new
BasicClientCookie(
"client_key"
,
"1425104707wd157b4b24ff70adcb875a"
);
cookie3.setDomain(
"lashou.com"
);
BasicClientCookie cookie4 =
new
BasicClientCookie(
"login_name2"
,
"testuser007"
);
cookie4.setDomain(
"lashou.com"
);
BasicClientCookie cookie5 =
new
BasicClientCookie(
"pwd2"
,
"4c88a4062736c26572d3ec382868fa2b"
);
cookie5.setDomain(
"lashou.com"
);
cookieStore.addCookie(cookie1);
cookieStore.addCookie(cookie2);
cookieStore.addCookie(cookie3);
cookieStore.addCookie(cookie4);
cookieStore.addCookie(cookie5);
List<Cookie> cookies =
new
ArrayList<Cookie>();
httpclient.setCookieStore(cookieStore);
List<Cookie> cookieList = httpclient.getCookieStore().getCookies();
for
(
int
i=
0
;i<cookieList.size();i++){
System.out.println(
"cookie"
+i+
":"
+cookieList.get(i));
}
// 设置已登录的cookie
String memberpage =
"http://www.lashou.com/account/orders/"
;
HttpGet httpget =
new
HttpGet(memberpage);
HttpResponse response = httpclient.execute(httpget);
// 必须是同一个HttpClient!
HttpEntity entity = response.getEntity();
entity = response.getEntity();
String html = EntityUtils.toString(entity,
"GBK"
);
httpget.releaseConnection();
System.out.println(html);
}
}
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