jsoup簡單應用

注：本文僅僅屬於我的記錄文檔。

1、須要引入jsoup的jar包

2、login.java的代碼

說明：  trustEveryone()方法徹底引用自該連接：http://espace.iteye.com/blog/1917574

package com.jsoup;


import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.X509TrustManager;

import org.jsoup.Connection;
import org.jsoup.Connection.Method;
import org.jsoup.Connection.Response;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;

public class login {
	//解決https訪問的信任證書
	public static void trustEveryone() {  
        try {  
            HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {  
                public boolean verify(String hostname, SSLSession session) {  
                    return true;  
                }  
            });  
  
            SSLContext context = SSLContext.getInstance("TLS");  
            context.init(null, new X509TrustManager[] { new 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[0];  
                }  
            } }, new SecureRandom());  
            HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());  
        } catch (Exception e) {  
            // e.printStackTrace();  
        }  
    }  
	public static void main(String[] args) throws Exception {
		trustEveryone();
		Connection con = Jsoup.connect("https://localhost/exam/login");
		//con.header("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0");
		Response rs = con.execute();
		Document doc = Jsoup.parse(rs.body());
		//System.out.println(rs.url());
		//System.out.println(doc.body());
		List<Element> et = doc.select("#login_form");
		Map<String, String> datas = new HashMap<>();
		for(Element e : et.get(0).getAllElements()){
			if(e.attr("name").equals("username")){
				e.attr("value","zhangsan");
			}
			if(e.attr("name").equals("password")){
				e.attr("value","password");
			}
			if(e.attr("name").length()>0){
				datas.put(e.attr("name"), e.attr("value"));
			}
		}
		
		Connection con2=Jsoup.connect("https://localhost/exam/login");
	    con2.header("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0");
	    rs =  con2.ignoreContentType(true)
	    		.method(Method.POST)
	    		.data(datas)
	    		.cookies(rs.cookies())
	    		.execute();
	    Map<String, String> cook = rs.cookies();
	    /*Document document = Jsoup.connect("https://localhost/exam/...").data(datas).cookies(rs.cookies()).post();
	    System.out.println(document.body());
	   // Map<String, String> map = login.cookies();
	      for(String s:map.keySet()){
	    	System.out.println(s+"     "+ map.get(s));
	    }*/
	    rs = Jsoup.connect("https://localhost/exam/users/")
	    		.ignoreContentType(true)
	    		.method(Method.GET)
	    		.cookies(cook)
	    		.execute();
	    doc = Jsoup.parse(rs.body());
	    System.out.println(doc.select("#username").val());

	    
	    datas = new HashMap<String, String>();
	    datas.put("username", doc.select("#username").val());
	    datas.put("password", doc.select("#password").val());
	    
	    rs = Jsoup.connect("https://localhost/exam/users/")
	    		.ignoreContentType(true)
	    		.method(Method.POST)
	    		.cookies(cook)
	    		.data(datas)
	    		.execute();
	    System.out.println(rs.parse());
	    		
	    
	    	
	    	/*Connection con3=Jsoup.connect("https://localhost/exam/users");
	    con2.header("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0");
	   Response login2 =  con3.ignoreContentType(true)
	    		.method(Method.POST)
	    		.cookies(login.cookies())
	    		.execute();
	   System.out.println(login2.body());*/
	   
	  /* con3=Jsoup.connect("https://localhost/exam/...");
	   Map<String, String> date = new HashMap<>();
	   date.put("questionid", "40");
	   date.put("type", "type03");
	   
	   Response login3 =  con3.ignoreContentType(true)
	    		.method(Method.GET)
	    		.cookies(login.cookies())
	    		//.data(date)
	    		.execute();
	   System.out.println(login3.body());*/
	    /*
		Map<String, String> map = new HashMap<>();
		map.put("username", "username");
		map.put("password", "password");
		Document doc = Jsoup.connect("https://localhost/exam/...").data(map).get();
		System.out.println(doc.body());*/
	}
}