Java 使用HttpURLConnection发出post请求时出现错误403
我编写了以下代码来自动从youtube下载视频 <>但是我卡在中间,从服务器上得到错误403! 我计划做的是将带有一些参数的链接发布到服务器,然后从响应中提取下载链接,然后直接下载文件 怎么了?谁能帮帮我吗Java 使用HttpURLConnection发出post请求时出现错误403,java,sockets,http-post,httpurlconnection,Java,Sockets,Http Post,Httpurlconnection,我编写了以下代码来自动从youtube下载视频 但是我卡在中间,从服务器上得到错误403! 我计划做的是将带有一些参数的链接发布到服务器,然后从响应中提取下载链接,然后直接下载文件 怎么了?谁能帮帮我吗 import java.net.*; import java.io.*; import java.util.*; import java.nio.charset.*; public class Downloader{ public static void main(String[] arg
import java.net.*;
import java.io.*;
import java.util.*;
import java.nio.charset.*;
public class Downloader{
public static void main(String[] args){
try{
String downloadLink = "https://www.youtube.com/watch?v=cRvl8zqAt_E&index=121&list=PL9394655A98259F67";
URL url = new URL("http://convert2mp3.net/en/index.php");
String addr = "127.0.0.1";
int port = 1180;
Map<String,Object> params = new LinkedHashMap<>();
params.put("url", downloadLink);
params.put("format", "mp4");
params.put("quality", "720");
StringBuilder postData = new StringBuilder();
for (Map.Entry<String,Object> param : params.entrySet()) {
if (postData.length() != 0)
postData.append('&');
postData.append(URLEncoder.encode(param.getKey(), "UTF-8"));
postData.append('=');
postData.append(URLEncoder.encode(String.valueOf(param.getValue()), "UTF-8"));
}
byte[] postDataBytes = postData.toString().getBytes("UTF-8");
// I have to use proxy i.e. my ISP blocks youtube!
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(addr , port));
HttpURLConnection connection = (HttpURLConnection)url.openConnection(proxy);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length", String.valueOf(postDataBytes.length));
connection.setDoOutput(true);
connection.getOutputStream().write(postDataBytes);
Reader in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
for (int c; (c = in.read()) >= 0;)
System.out.print((char)c);
}catch(Exception ex){
ex.printStackTrace();
}
}
}
import java.net.*;
导入java.io.*;
导入java.util.*;
导入java.nio.charset.*;
公共类下载程序{
公共静态void main(字符串[]args){
试一试{
字符串下载链接=”https://www.youtube.com/watch?v=cRvl8zqAt_E&index=121&list=PL9394655A98259F67";
URL=新URL(“http://convert2mp3.net/en/index.php");
字符串addr=“127.0.0.1”;
int端口=1180;
Map params=新建LinkedHashMap();
参数put(“url”,下载链接);
参数put(“格式”、“mp4”);
参数put(“质量”、“720”);
StringBuilder postData=新建StringBuilder();
对于(Map.Entry参数:params.entrySet()){
如果(postData.length()!=0)
postData.append('&');
append(URLEncoder.encode(param.getKey(),“UTF-8”);
postData.append('=');
append(URLEncoder.encode(String.valueOf(param.getValue()),“UTF-8”);
}
字节[]postDataBytes=postData.toString().getBytes(“UTF-8”);
//我必须使用代理,即我的ISP阻止youtube!
Proxy Proxy=新代理(Proxy.Type.HTTP,新的InetSocketAddress(addr,port));
HttpURLConnection connection=(HttpURLConnection)url.openConnection(proxy);
connection.setRequestMethod(“POST”);
connection.setRequestProperty(“内容类型”、“应用程序/x-www-form-urlencoded”);
setRequestProperty(“内容长度”,String.valueOf(postDataBytes.Length));
connection.setDoOutput(真);
connection.getOutputStream().write(postDataBytes);
Reader in=new BufferedReader(新的InputStreamReader(connection.getInputStream(),“UTF-8”);
对于(int c;(c=in.read())>=0;)
系统输出打印((字符)c);
}捕获(例外情况除外){
例如printStackTrace();
}
}
}
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