apache httpclient-4.3.1.jar重定向问题!
apache httpclient-4.3.1.jar 该包我找了官方网站也没找到怎么防止网页重定向，我不要重定向！求大神
我写的方法
package www.qq.dao;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;
import java.util.List;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.client.LaxRedirectStrategy;
import org.apache.http.util.EntityUtils;
import www.qq.model.Cookie;
import www.qq.model.HTTPParameter;
/**
* 阿帕奇HttpConnt
* @author fuce
*
*/
public class ApacheHttpConnt {
public static void main(String[] args) throws ClientProtocolException, IOException {
getHTTPSPost(null);
}
/**
* 统一关闭
* @param in
* @param entity
* @param response
*/
public static void HTTPSPostColes(BufferedReader in,HttpEntity entity,CloseableHttpResponse response){
try {
if(in!=null){
in.close();
}
if(entity!=null){
EntityUtils.consume(entity);
}
if(response!=null){
response.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static Cookie getHTTPS(HTTPParameter httPParameter){
System.out.println();
Cookie cookie=new Cookie();
if ("POST".equals(httPParameter.getPisG())) {// 判断是get还是post
cookie=getHTTPSPost(httPParameter);
}else{
cookie=getHTTPSGet(httPParameter);
}
return cookie;
}
/**
* 判断是txt还是img
* @param httpParameter
* @param inpt
*/
public static Cookie isTxtorImg(HTTPParameter httpParameter,InputStream inpt) {
Cookie cookie=new Cookie();
try {
if("IMG".equals(httpParameter.getRetCodeType())){
//取图片数据
if(inpt!=null){
DataInputStream in = new DataInputStream(inpt);
DataOutputStream out = new DataOutputStream(new FileOutputStream("d://验证码.jpg"));
//将参数savePath，即将截取的图片的存储在本地地址赋
byte[] buffer = new byte[1024];
int count = 0;
//将输入流以字节的形式读取并写入buffer
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
// 关闭输入输出流
out.close();
in.close();
}
}
if("TXT".equals(httpParameter.getRetCodeType())){
// 取数据
if (inpt!=null) {
// 读取返回的信息
BufferedReader in = new BufferedReader(new InputStreamReader(inpt, "UTF-8"));
StringBuffer line =new StringBuffer();
String tem = "";
while ((tem = in.readLine()) != null) {
line.append(tem);
}
in.close();
cookie.setCode(line.toString());
}
}
} catch (Exception e) {
e.printStackTrace();
}finally{
try {
inpt.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return cookie;
}
/**
* httpsPost
* @param httPParameter
* @return
*/
public static Cookie getHTTPSPost(HTTPParameter httPParameter){
Cookie cookie=new Cookie();
CloseableHttpClient httpclient=null;
HttpEntity entity=null;
BufferedReader in=null;
CloseableHttpResponse response=null;
HttpClientContext context = HttpClientContext.create();
try {
if("HTTP".equals(httPParameter.getHttptype()))
{
httpclient=HttpClients.createDefault();
}else{
httpclient = HttpClients.custom().setSSLSocketFactory(getSSLF()).build();
}
HttpPost httppost = new HttpPost(httPParameter.getUrl());
StringEntity reqEntity2 = new StringEntity(httPParameter.getParameter(),"UTF-8");
// 设置类型
reqEntity2.setContentType("application/x-www-form-urlencoded");
httppost.setEntity(reqEntity2);
if(httPParameter.getReferer()!=null){
httppost.setHeader("Referer",httPParameter.getReferer());
}
if(httPParameter.getCookie()!=null){
httppost.setHeader("Cookie",httPParameter.getCookie());
}
if(httPParameter.getHost()!=null){
httppost.setHeader("Host",httPParameter.getHost());
}
httppost.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:26.0) Gecko/20100101 Firefox/26.0");
response = httpclient.execute(httppost,context);
entity = response.getEntity();
System.out.println("执行状态:"+response.getStatusLine().getStatusCode());
//获取文本
InputStream ins = entity.getContent();
cookie=isTxtorImg(httPParameter, ins);
Header[] headers=response.getHeaders("Set-Cookie");
//获取cookie
cookie.setCookie(getcookie(headers));
//获取重定向值
List<URI> list= context.getRedirectLocations();
for (URI uri : list) {//重定向
cookie.setLocation(uri.toURL().toString());
}
} catch (Exception e) {
e.printStackTrace();
}finally{
HTTPSPostColes(in, entity, response);
}
return cookie;
}
/**
* httpsget
* @param httPParameter
* @return
*/
public static Cookie getHTTPSGet(HTTPParameter httPParameter){
Cookie cookie=new Cookie();
CloseableHttpClient httpclient=null;
HttpEntity entity=null;
BufferedReader in=null;
CloseableHttpResponse response=null;
HttpClientContext context = HttpClientContext.create();
// LaxRedirectStrategy redirectStrategy = new LaxRedirectStrategy();
try {
if("HTTP".equals(httPParameter.getHttptype()))
{
httpclient=HttpClients.createDefault();
}else{
httpclient = HttpClients.custom().setSSLSocketFactory(getSSLF()).build();
}
HttpGet httpGet = new HttpGet(httPParameter.getUrl());
if(httPParameter.getReferer()!=null){
httpGet.setHeader("Referer",httPParameter.getReferer());
}
if(httPParameter.getCookie()!=null){
httpGet.setHeader("Set-Cookie",httPParameter.getCookie());
}
if(httPParameter.getHost()!=null){
httpGet.setHeader("Host",httPParameter.getHost());
}
httpGet.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:26.0) Gecko/20100101 Firefox/26.0");
response = httpclient.execute(httpGet,context);
entity = response.getEntity();
// System.out.println(response.getAllHeaders());
System.out.println("执行状态:"+response.getStatusLine().getStatusCode());
//获取文本
InputStream ins = entity.getContent();
cookie=isTxtorImg(httPParameter, ins);
Header[] headers=response.getHeaders("Set-Cookie");
//获取cookie
cookie.setCookie(getcookie(headers));
System.out.println();
//获取重定向值
List<URI> list= context.getRedirectLocations();
if(list!=null&&list.size()>0){
for (URI uri : list) {//重定向
cookie.setLocation(uri.toURL().toString());
}
}
} catch (Exception e) {
e.printStackTrace();
}finally{
HTTPSPostColes(in, entity, response);
}
return cookie;
}
public static String getcookie(Header[] headers){
StringBuffer buffer=new StringBuffer();
for (Header header : headers) {
buffer.append(header.getValue());
}
return buffer.toString();
}
/**
* 加载证书
* @return
* @throws Exception
*/
public static SSLConnectionSocketFactory getSSLF() throws Exception{
SSLContextBuilder builder = new SSLContextBuilder();
builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build());
return sslsf;
}
}java.net下面的 httpurlconnection方法
package www.qq.dao;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import www.qq.model.Cookie;
import www.qq.model.HTTPParameter;
/**
* 模拟Post Get类
*
* @author fuce
* @time 2013-8-14
*/
public class HTTPConnt {
/**
* SSL需要的
*
* @author fuce
* @time 2013-8-14
*/
private static class TrustAnyTrustManager implements X509TrustManager {
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[] {};
}
}
@SuppressWarnings("unused")
private class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
/**
* HTTP提交心跳
* @throws IOException
*/
public static Cookie getHTTPPoll2(HTTPParameter httPParameter) throws Exception{
Cookie cookie=new Cookie();
URL url2 = new URL(httPParameter.getUrl());
HttpURLConnection connection = (HttpURLConnection) url2.openConnection();
connection.setDoOutput(true);// 打开写入属性
connection.setDoInput(true);// 打开读取属性
connection.setReadTimeout(3000);
//connection.setConnectTimeout(0);// 连接超时时间 设置连接主机超时（单位：毫秒)
//connection.setReadTimeout(0);// 设置从主机读取数据超时（单位：毫秒
connection.setInstanceFollowRedirects(false);// 设置是否重定向
if(httPParameter.getReferer()!=null){
connection.addRequestProperty("Referer", httPParameter.getReferer());
}
connection.disconnect();
if(httPParameter.getCookie()!=null){
connection.addRequestProperty("Cookie", httPParameter.getCookie());
}
if(httPParameter.getHost()!=null){
connection.addRequestProperty("Host", httPParameter.getHost());
}
connection.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:26.0) Gecko/20100101 Firefox/26.0");
if ("POST".equals(httPParameter.getPisG())) {// 判断是get还是post
connection.getOutputStream().write(httPParameter.getParameter().getBytes());
connection.connect();// 提交
} else {
connection.setRequestMethod("GET");// 设置提交方式
connection.connect();// 提交
}
if("IMG".equals(httPParameter.getRetCodeType())){
//取图片数据
if(connection.getInputStream()!=null){
DataInputStream in = new DataInputStream(connection.getInputStream());
DataOutputStream out = new DataOutputStream(new FileOutputStream("d://验证码.jpg"));
//将参数savePath，即将截取的图片的存储在本地地址赋
byte[] buffer = new byte[1024];
int count = 0;
//将输入流以字节的形式读取并写入buffer
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
// 关闭输入输出流
out.close();
in.close();
}
}
if("TXT".equals(httPParameter.getRetCodeType())){
// 取数据
if(connection.getInputStream()!=null){
InputStream ins = connection.getInputStream();
if (ins!=null) {
// 读取返回的信息
BufferedReader in = new BufferedReader(new InputStreamReader(ins, "UTF-8"));
StringBuffer line =new StringBuffer();
String tem = "";
while ((tem = in.readLine()) != null) {
line.append(tem);
}
in.close();
cookie.setCode(line.toString());
}
ins.close();
}
}
// 取cookie
if (connection.getHeaderField("Set-Cookie") != null) {
String cookie1 = "";
for (String s : connection.getHeaderFields().get("Set-Cookie")) {
cookie1 += s;
}
cookie.setCookie(cookie1);
}
//重定向地址
if (connection.getHeaderField("Location") != null) {
String Location = "";
for (String s : connection.getHeaderFields().get("Location")) {
Location += s;
}
cookie.setLocation(Location);
}
connection.disconnect();// 关闭
return cookie;
}
/**
* HTTP提交
* @throws IOException
*/
public static Cookie getHTTPPost(HTTPParameter httPParameter) throws Exception{
Cookie cookie=new Cookie();
URL url2 = new URL(httPParameter.getUrl());
HttpURLConnection connection = (HttpURLConnection) url2.openConnection();
connection.setDoOutput(true);// 打开写入属性
connection.setDoInput(true);// 打开读取属性
connection.setReadTimeout(3000);
connection.setConnectTimeout(10000);// 连接超时时间 设置连接主机超时（单位：毫秒)
connection.setReadTimeout(10000);// 设置从主机读取数据超时（单位：毫秒
connection.setInstanceFollowRedirects(false);// 设置是否重定向
if(httPParameter.getReferer()!=null){
connection.addRequestProperty("Referer", httPParameter.getReferer());
}
if(httPParameter.getCookie()!=null){
connection.addRequestProperty("Cookie", httPParameter.getCookie());
}
if(httPParameter.getHost()!=null){
connection.addRequestProperty("Host", httPParameter.getHost());
}
connection.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:26.0) Gecko/20100101 Firefox/26.0");
if (httPParameter.getConnection() != null) {
connection.addRequestProperty("Connection", httPParameter.getConnection());
}
if ("POST".equals(httPParameter.getPisG())) {// 判断是get还是post
connection.getOutputStream().write(httPParameter.getParameter().getBytes());
connection.connect();// 提交
} else {
connection.setRequestMethod("GET");// 设置提交方式
connection.connect();// 提交
}
if("IMG".equals(httPParameter.getRetCodeType())){
//取图片数据
if(connection.getInputStream()!=null){
DataInputStream in = new DataInputStream(connection.getInputStream());
DataOutputStream out = new DataOutputStream(new FileOutputStream("d://验证码.jpg"));
//将参数savePath，即将截取的图片的存储在本地地址赋
byte[] buffer = new byte[1024];
int count = 0;
//将输入流以字节的形式读取并写入buffer
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
// 关闭输入输出流
out.close();
in.close();
}
}
if("TXT".equals(httPParameter.getRetCodeType())){
// 取数据
if(connection.getInputStream()!=null){
InputStream ins = connection.getInputStream();
if (ins!=null) {
// 读取返回的信息
BufferedReader in = new BufferedReader(new InputStreamReader(ins, "UTF-8"));
StringBuffer line =new StringBuffer();
String tem = "";
while ((tem = in.readLine()) != null) {
line.append(tem);
}
in.close();
cookie.setCode(line.toString());
}
ins.close();
}
}
// 取cookie
if (connection.getHeaderField("Set-Cookie") != null) {
String cookie1 = "";
for (String s : connection.getHeaderFields().get("Set-Cookie")) {
cookie1 += s;
}
cookie.setCookie(cookie1);
}
//重定向地址
if (connection.getHeaderField("Location") != null) {
String Location = "";
for (String s : connection.getHeaderFields().get("Location")) {
Location += s;
}
cookie.setLocation(Location);
}
connection.disconnect();// 关闭
return cookie;
}
/**
* HTTPS提交
* @throws MalformedURLException
* @throws NoSuchAlgorithmException
*/
public static Cookie getHTTPSPost(HTTPParameter httPParameter) throws Exception{
Cookie cookie=new Cookie();
URL url2 = new URL(httPParameter.getUrl());
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, new TrustManager[] { new TrustAnyTrustManager() }, new java.security.SecureRandom());
HttpsURLConnection connection = (HttpsURLConnection) url2.openConnection();
connection.setSSLSocketFactory(sc.getSocketFactory());
connection.setDoOutput(true);// 打开写入属性
connection.setDoInput(true);// 打开读取属性
connection.setConnectTimeout(5000);// 连接超时时间 设置连接主机超时（单位：毫秒)
connection.setReadTimeout(5000);// 设置从主机读取数据超时（单位：毫秒
connection.setInstanceFollowRedirects(false);// 设置是否重定向
if(httPParameter.getCookie()!=null){
connection.addRequestProperty("Cookie", httPParameter.getCookie());
}
if(httPParameter.getHost()!=null){
connection.addRequestProperty("Host", httPParameter.getHost());
}
connection.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63");
if (httPParameter.getConnection() != null) {
connection.addRequestProperty("Connection", httPParameter.getConnection());
}
if ("POST".equals(httPParameter.getPisG())) {// 判断是get还是post
connection.getOutputStream().write(httPParameter.getParameter().getBytes());
connection.connect();// 提交
} else {
connection.setRequestMethod("GET");// 设置提交方式
connection.connect();// 提交
}
if("IMG".equals(httPParameter.getRetCodeType())){
//取图片数据
if(connection.getInputStream()!=null){
DataInputStream in = new DataInputStream(connection.getInputStream());
DataOutputStream out = new DataOutputStream(new FileOutputStream("d://验证码.jpg"));
//将参数savePath，即将截取的图片的存储在本地地址赋
byte[] buffer = new byte[1024];
int count = 0;
//将输入流以字节的形式读取并写入buffer
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
// 关闭输入输出流
out.close();
in.close();
}
}
if("TXT".equals(httPParameter.getRetCodeType())){
// 取数据
if(connection.getInputStream()!=null){
InputStream ins = connection.getInputStream();
if (ins!=null) {
// 读取返回的信息
BufferedReader in = new BufferedReader(new InputStreamReader(ins, "UTF-8"));
String line = "";
String tem = "";
while ((tem = in.readLine()) != null) {
line += tem;
}
in.close();
cookie.setCode(line);
}
ins.close();
}
}
// 取cookie
if (connection.getHeaderField("Set-Cookie") != null) {
String cookie1 = "";
for (String s : connection.getHeaderFields().get("Set-Cookie")) {
cookie1 += s;
}
cookie.setCookie(cookie1);
}
//重定向地址
if (connection.getHeaderField("Location") != null) {
String Location = "";
for (String s : connection.getHeaderFields().get("Location")) {
Location += s;
}
cookie.setLocation(Location);
}
connection.disconnect();// 关闭
return cookie;
}
}这个class只需要
connection.setInstanceFollowRedirects(false);// 设置是否重定向
那个apache的怎么防止自动重定向- -求大神，
官网例子：
http://hc.apache.org/httpcomponents-client-4.3.x/index.html
api地址
http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/overview-summary.html
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评论（4）
HttpClient4.3.3中，httpparams类已经废弃了，如果要禁止重定向，新建httpclient实例时指定disableredirect即可，代码如下：
CloseableHttpClient httpclient = HttpClientBuilder.create().disableRedirectHandling().build();
官方文档没看完吧.....
LaxRedirectStrategy redirectStrategy = new LaxRedirectStrategy(); CloseableHttpClient httpclient = HttpClients.custom() .setRedirectStrategy(redirectStrategy) .build();LaxRedirectStrategy重写一个类,继承这个,然后isRedirectable返回false就行了....没有实践过
不过httpclient真的是一个版本一个样,封装了下4.2结果换成4.3一片的过期方法....
新版本自动重定向了，你换个老版本吧。
刚看了下文档，http://hc.apache.org/httpcomponents-client-4.2.x/tutorial/html/httpagent.html#d5e1225
你试试ClientPNames.MAX_REDIRECTS='http.protocol.max-redirects' 这个参数。
顶