java的jsoup的登录问题

实现思路：

 1、模拟登录，获取登录后的cookie.
 2、带着得到的cookie请求需要的操作。

Jsoup例子，比较简单：

     package com.daidai.util;

            import java.io.IOException;
            import java.util.HashMap;
            import java.util.HashSet;
            import java.util.Map;
            import java.util.Set;
            import java.util.regex.Matcher;
            import java.util.regex.Pattern;

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

            public class JsoupUtil {

            // 登录获取到的cookie
            static Map<String, String> cookieMap = new HashMap<String, String>();

            /**
            * @param uri
            * @param paramsMap form表单中的参数和值
            * @return
            */
            public static boolean login(String uri, Map<String, String> paramsMap){

                    boolean loginFlag = false;

                    Response response = null;
                    try {
                            response = Jsoup.connect(uri)
                                            .userAgent("Mozilla")
                                            .data(paramsMap)  
                                            .method(Method.POST)
                                            .timeout(20000)  
                                            .execute();

                            if (response.statusCode() == 200) {  
                                    cookieMap = response.cookies();
                                    loginFlag = true;
                            } 

                    } catch (IOException e) {
                            e.printStackTrace();
                    }

                    return loginFlag;
            }

            /**
            * 提交评论内容
            * @param url
            * @param params    封装的参数
            */
            public static void doPost(String uri, Map<String,String> paramsMap){

                    Response response = null;
                    try {
                            response = Jsoup.connect(uri)
                                            .userAgent("Mozilla/5.0")
                                            .data(paramsMap)
                                            .method(Method.POST)
                                            .timeout(20000)
                                            .cookies(cookieMap)
                                            .ignoreContentType(true)
                                            .execute();

                            if (response.statusCode() == 200) {  
                                    System.out.println("评论成功！");
                            } else{
                                    System.out.println("评论失败！（HTTP CODE："+response.statusCode()+"）");
                            }

                    } catch (IOException e) {
                            e.printStackTrace();
                    }

            }

            }