这个要分两步，先用GET方法取得页面源码，分析出mpc的值，然后用POST方法发送数据就能登录了。当然一切工作之前要设置好CookieHandler
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post页面：
;pageref=
post参数就4个启旅悔而已，
name=yourNamepwd=yourPasswordB12=Loginmpc=分析得到的mpc
看镇余如下例子：
将这个例子中的如下语句改一下就能收到数据的
connection.getInputStream().close();
//
import java.io.BufferedInputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java点虐 .CookieHandler;
import java点虐 .CookieManager;
import java点虐 .CookiePolicy;
import java点虐 .HttpURLConnection;
import java点虐 .URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class SongTaste {
private static String baseURL="";
private static String loginURL=baseURL+"/signin.php";
private static String actionURL=baseURL+"悄正/info_oper.php?tag=signinpageref=";
private static String musicURL=baseURL+"/music/";
private static CookieManager cm;
static{
cm=new CookieManager();
cm.setCookiePolicy(CookiePolicy.ACCEPT_ALL);
CookieHandler.setDefault(cm);
}
public static void main(String[] args) throws Exception{
// HttpURLConnection.setFollowRedirects(true);
login("abcmusic","000000");
listContents();
}
private static void listContents() throws Exception {
byte[] dat=new HttpGet(musicURL).data;
String src=new String(dat,"gbk");
Matcher m=Pattern点抗 pile("MSL\\(.*?\\)").matcher(src);
while(m.find())
System.out.println(m.group());
}
private static void login(String name,String pwd){
byte[] dat=new HttpGet(loginURL).data;
String src=new String(dat);
Matcher m=Pattern点抗 pile("name=mpc.*?").matcher(src);
String mpc="";
if(m.find()){
mpc=m.group();
// System.out.println(mpc);
mpc=mpc.substring(15,mpc.length()-1);
// System.out.println(mpc);
}
//do login
new HttpPost(actionURL,String.format("name=%spwd=%sB12=Loginmpc=%s",name,pwd,mpc));
}
private static class HttpGet extends Thread{
private static final int bufferSize=1024;
private String ustr;
private byte[] data;
private HttpGet(String u,String...ref){
ustr=u;
start();
try {join();} catch (Exception e) {}
}
public void run(){
try{
URL u = new URL(ustr);
HttpURLConnection uc=(HttpURLConnection)u.openConnection();
byte[] b={};
byte[] t=new byte[bufferSize];
int r;
BufferedInputStream bin=new BufferedInputStream(uc.getInputStream());
while((r=bin.read(t))-1){
b=putData(b,t,r);
}
bin.close();
uc.disconnect();
data=b;
}catch(Exception e){}
}
private final byte[] putData(byte[] b, byte[] t, int r) {
byte[] tb=new byte[b.length+r];
System.arraycopy(b, 0, tb, 0, b.length);
System.arraycopy(t, 0, tb, b.length, r);
return tb;
}
}
private static class HttpPost extends Thread{
private static int blen=1024;
private static String contentType="application/x-www-form-urlencoded";
private String url,pms;
private byte[] dat={};
private HttpPost(String u,String p){
url=u;
pms=p;
start();
try{join();}catch(Exception e){}
}
public void run(){
try{
URL u = new URL(url);
HttpURLConnection connection=(HttpURLConnection)u.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",contentType);
connection.setRequestProperty("Content-Length",String.valueOf(pms.length()));
connection.setUseCaches(false);
connection.setDoOutput(true);
connection.setDoInput(true);
DataOutputStream dout=new DataOutputStream(connection.getOutputStream());
dout.write(pms.getBytes());
dout.flush();
dout.close();
InputStream in=connection.getInputStream();
BufferedInputStream bin=new BufferedInputStream(in);
byte[] buff=new byte[blen],bs={};
int r;
while((r=bin.read(buff))-1){
bs=putData(bs,buff,r);
}
bin.close();
connection.disconnect();
dat=bs;
}catch(Exception e){}
}
private final byte[] putData(byte[] b, byte[] t, int r) {
byte[] tb=new byte[b.length+r];
System.arraycopy(b, 0, tb, 0, b.length);
System.arraycopy(t, 0, tb, b.length, r);
return tb;
}
}
}
