Jsoup爬取帶登錄驗證碼的網站

 

　　今天學完爬蟲之后想的爬一下我們學校的教務系統，可是發現登錄的時候有驗證碼。因此研究了Jsoup爬取帶驗證碼的網站:

 

大體的思路是:(需要注意的是__VIEWSTATE一直變化，所以我們每個頁面都需要重新獲取並帶着爬取下一個頁面)

 

　　1.先爬取網站的主頁，由於我們學校的網站是ASP.net，所以需要爬到每個網頁的__VIEWSTATE。同時爬取主頁也可以獲得一個cookie(ASP.sessionId)

　　2.帶着__VIEWSTATE和ASP.sessionId爬取驗證碼。(網上說有專門識別驗證碼的軟件，在這里我只是把驗證碼下載到本地之后，需要用戶輸入驗證碼)獲取驗證碼圖片的時候需要帶着cookie去獲取，來標識是本次session請求的驗證碼，如果不帶sessionid下載驗證碼之后輸入驗證碼也無效。

　　3.輸入用戶名，密碼和驗證碼登錄系統，登錄系統需要攜帶一些其他參數(值為空也需要攜帶)。

　　4.登錄之后不能直接爬取成績，需要爬蟲登錄成功之后的主頁面獲取__viewstate。

　　5.爬完登錄成功的主頁之后就可以進行爬取成績，將爬到的成績收集起來，最后輸出到html頁面中。

 

(在這個爬蟲的過程中需要注意__viewstate，每個頁面都需要獲取這個值，這個值是放在input隱藏域中。另外爬取過程中請求頭攜帶REFER參數(也就是表示你從哪個網站過來的)，防止盜鏈)

 

 

下面是代碼:

1.爬蟲的入口

package cn.qlq.craw.JsoupCrawJWXT;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map.Entry;
import java.util.Scanner;

/**
 * 爬蟲主的程序調度器(爬蟲教務系統的入口)
 * 
 * @author liqiang
 *
 */
public class MainClass {

    public static void main(String[] args) {

        // 輸入學號和密碼
        System.out.print("請輸入你要查詢學號:");
        Scanner sc = new Scanner(System.in);
        String xuehao = sc.next();
        System.out.print("請輸入密碼:");
        String password = sc.next();
        // Console con = System.console();
        // String pswd = new String(con.readPassword());// 因為讀取的是字符數組,所以需要用new

        try {
            DownloadLoginfo downloadLoginfo = new DownloadLoginfo();
            LoginClass loginClass = new LoginClass();
            GradeOutput gradeOutput = new GradeOutput();
            // 1.訪問主頁，獲取驗證碼與viewstate
            downloadLoginfo.getLogInfo();
            // 2.登錄
            loginClass.login(downloadLoginfo, xuehao, password);
            for (Entry<String, String> entry : loginClass.getCookies().entrySet()) {
                System.out.println("key:" + entry.getKey() + ";value" + entry.getValue());
            }
            CrawGrade crawGrade = new CrawGrade();
            //3. 爬取成績的上一個頁面
            crawGrade.crawGradeLastPage(downloadLoginfo.getCookies(), downloadLoginfo.getViewState(), xuehao);
            List<String> condition = geneQueryCondition();
            //4.循環分學年爬取成績
            for (String xuenian : condition) {
                String html_content = crawGrade.crawGrade(xuenian, "2", downloadLoginfo.getCookies(),
                        // 4.1爬取成績頁面
                        downloadLoginfo.getViewState(), xuehao);
                gradeOutput.collectGrade(html_content);

            }
            //5.輸出爬到的數據到html文件中
            gradeOutput.outputDatas2Html();
        } catch (IOException e) {
            System.out.println("無法連接學校服務器");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 構造需要查詢的年份和學期
     * 
     * @return
     */
    public static List<String> geneQueryCondition() {
        List<String> condition = new ArrayList<String>();
        condition.add("2014-2015");
        condition.add("2015-2016");
        condition.add("2016-2017");
        condition.add("2017-2018");
        return condition;
    }

}

 

2.爬取學校主頁獲取__VIEWSTATE和cookie

package cn.qlq.craw.JsoupCrawJWXT;

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

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;

/**
 * url獲取圖片並且保存到本地
 * 
 * @author liqiang
 *
 */
public class DownloadLoginfo {
    /**
     * 第一次訪問獲取的cookie(查看發現就返回一個cookie:ASP.NET_SessionId)
     */
    private  Map<String, String> cookies = null;
    /**
     * __viewstate    教務系統用於驗證的信息
     */
    private  String viewState = null;
    
    public DownloadLoginfo() {
        this.cookies = new HashMap<String,String>();;
        this.viewState = "";
    }

    /**
     * 獲取登錄信息
     * 主要就是訪問一下主頁面，獲取一個__viewstate與cookie
     */
    public  void getLogInfo() throws Exception {
        String urlLogin = "http://newjwc.tyust.edu.cn/";
        Connection connect = Jsoup.connect(urlLogin);
        // 偽造請求頭
        connect.header("Accept", "application/json, text/javascript, */*; q=0.01").header("Accept-Encoding",
                "gzip, deflate");
        connect.header("Accept-Language", "zh-CN,zh;q=0.9").header("Connection", "keep-alive");
        connect.header("Content-Length", "213").header("Content-Type",
                "application/x-www-form-urlencoded; charset=UTF-8");
        connect.header("Host", "newjwc.tyust.edu.cn").header("Referer", "http://newjwc.tyust.edu.cn/");
        connect.header("User-Agent",
                "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36")
                .header("X-Requested-With", "XMLHttpRequest");

        // 請求url獲取響應信息
        Response res = connect.ignoreContentType(true).method(Method.POST).execute();// 執行請求
        // 獲取返回的cookie
        this.cookies = res.cookies();
        for (Entry<String, String> entry : cookies.entrySet()) {
            System.out.println(entry.getKey() + "-" + entry.getValue());
        }
        // 獲取響應體
        String body = res.body();

        // 調用下面方法獲取__viewstate
        this.getViewState(body);// 獲取viewState
        //調用下載驗證碼的工具類下載驗證碼
        JsoupDoloadPicture.downloadImg("http://newjwc.tyust.edu.cn/CheckCode.aspx", cookies);;
    }

    /**
     * 獲取viewstate
     * 
     * @return
     */
    public  String getViewState(String htmlContent) {
        Document document = Jsoup.parse(htmlContent);
        Element ele = document.select("input[name='__VIEWSTATE']").first();
        String value = ele.attr("value");
        // 獲取到viewState
        this.viewState = value;
        return value;
    }

    public Map<String, String> getCookies() {
        return cookies;
    }

    public void setCookies(Map<String, String> cookies) {
        this.cookies = cookies;
    }

    public String getViewState() {
        return viewState;
    }

    public void setViewState(String viewState) {
        this.viewState = viewState;
    }


    
}

 

3.帶着驗證碼爬取驗證碼，並下載到本地

package cn.qlq.craw.JsoupCrawJWXT;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Map;

import org.apache.commons.io.FileUtils;
import org.jsoup.Connection;
import org.jsoup.Jsoup;

/**
 * Jsoup帶着cookie下載驗證碼到本地(必須帶着cookie下載驗證碼，否則下載的驗證碼無效)
 * 
 * @author liqiang
 *
 */
public class JsoupDoloadPicture {

    /**
     * 帶着cookie下載驗證碼圖片
     * 
     * @param url
     * @param cookies
     * @throws IOException
     */
    public static void downloadImg(String url, Map<String, String> cookies) throws IOException {
        // TODO Auto-generated method stub
        Connection connect = Jsoup.connect(url);
        connect.cookies(cookies);// 攜帶cookies爬取圖片
        connect.timeout(5 * 10000);
        Connection.Response response = connect.ignoreContentType(true).execute();
        byte[] img = response.bodyAsBytes();
        System.out.println(img.length);
        // 讀取文件存儲位置
        String directory = ResourcesUtil.getValue("path", "file");
        savaImage(img, directory, "yzm.png");
    }

    /**
     * 保存圖片到本地
     * @param img
     * @param filePath
     * @param fileName
     */
    public static void savaImage(byte[] img, String filePath, String fileName) {
        BufferedOutputStream bos = null;
        FileOutputStream fos = null;
        File file = null;
        File dir = new File(filePath);
        try {
            //判斷文件目錄是否存在
            if(dir.exists() && !dir.isDirectory()){
                FileUtils.deleteQuietly(dir);
            }
            dir.mkdir();
            file = new File(filePath + "\\" + fileName);
            fos = new FileOutputStream(file);
            bos = new BufferedOutputStream(fos);
            bos.write(img);
            System.out.println("驗證碼已經下載到:"+filePath);
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (bos != null) {
                try {
                    bos.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }

    }
}

 

 

4.登錄類

package cn.qlq.craw.JsoupCrawJWXT;

import java.util.Map;
import java.util.Map.Entry;
import java.util.Scanner;

import org.jsoup.Connection;
import org.jsoup.Connection.Method;
import org.jsoup.Connection.Response;
import org.jsoup.Jsoup;

/**
 * 登錄類(訪問登錄頁面獲取登錄的cookie)
 * 
 * @author liqiang
 *
 */
public class LoginClass {
    /**
     * 記錄返回的cookie
     */
    private Map<String, String> cookies = null;

    /**
     * 模擬登錄獲取cookie和sessionid
     * 
     */
    public void login(DownloadLoginfo downloadLoginfo, String xuehao, String mima) throws Exception {
        String urlLogin = "http://newjwc.tyust.edu.cn/default2.aspx";
        Connection connect = Jsoup.connect(urlLogin);
        connect.timeout(5 * 100000);
        // 偽造請求頭
        connect.header("Content-Length", "213").header("Content-Type", "application/x-www-form-urlencoded");
        connect.header("Host", "newjwc.tyust.edu.cn").header("Referer",
                "http://newjwc.tyust.edu.cn/xscjcx.aspx?xh=" + xuehao + "&xm=%C7%C7%C0%FB%C7%BF&gnmkdm=N121613");
        connect.header("User-Agent",
                "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36");

        // 輸入驗證碼
        System.out.println("-----------請輸入驗證碼---------");
        Scanner sc = new Scanner(System.in);
        String yzm = sc.next();
        sc.close();
        // 攜帶登陸信息
        connect.data("txtUserName", xuehao).data("__VIEWSTATE", downloadLoginfo.getViewState()).data("TextBox2", mima)
                .data("Textbox1", "").data("RadioButtonList1", "").data("Button1", "").data("lbLanguage", "")
                .data("hidPdrs", "").data("hidsc", "").data("txtSecretCode", yzm);
        connect.cookies(downloadLoginfo.getCookies());
        // 請求url獲取響應信息
        Response res = connect.ignoreContentType(true).method(Method.POST).execute();// 執行請求
        // 獲取返回的cookie
        this.cookies = res.cookies();
        for (Entry<String, String> entry : cookies.entrySet()) {
            System.out.println(entry.getKey() + "-" + entry.getValue());
        }
        System.out.println("---------獲取的登錄之后的頁面-----------");
        String body = res.body();// 獲取響應體
        System.out.println(body);
    }

    public Map<String, String> getCookies() {
        return cookies;
    }

    public void setCookies(Map<String, String> cookies) {
        this.cookies = cookies;
    }

}

 

5.爬取登錄之后的主頁和成績

package cn.qlq.craw.JsoupCrawJWXT;

import java.io.IOException;
import java.util.Map;

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

/**
 * 爬取成績的類
 * 
 * @author liqiang
 *
 */
public class CrawGrade {
    
    private String viewState;
    /**
     * 全局獲取viewstate的函數
     * @param html
     * @return
     */
    public  String getViewState(String html){
        Document document = Jsoup.parse(html);
        Element ele = document.select("input[name='__VIEWSTATE']").first();
        String value = ele.attr("value");
        this.viewState = value;
        // 獲取到viewState
        return value;
    }

    /**
     * 爬取獲取成績的上一個頁面(也就是剛登陸之后的頁面)
     * @param cookies
     * @param viewStata
     * @param xuehao
     * @return
     * @throws IOException
     */
    public String crawGradeLastPage(Map<String,String> cookies,String viewStata,String xuehao) throws IOException{
        String urlLogin = "http://newjwc.tyust.edu.cn/xscjcx.aspx?xh="+xuehao+"&xm=%C7%C7%C0%FB%C7%BF&gnmkdm=N121613";
        Connection connect = Jsoup.connect(urlLogin);
        connect.timeout(5 * 100000);
        // 偽造請求頭
        connect.header("Content-Length", "74642").header("Content-Type", "application/x-www-form-urlencoded");
        connect.header("Host", "newjwc.tyust.edu.cn").header("Referer", "http://newjwc.tyust.edu.cn/xscjcx.aspx?xh=201420020123&xm=%C7%C7%C0%FB%C7%BF&gnmkdm=N121613");
        connect.header("User-Agent",
                "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36");

        // 攜帶登陸信息
        connect.data("xh","201420020123")
            .data("xm", viewStata)
            .data("hidLanguage", "")
            .data("gnmkdm", "N121613");
        //設置cookie
        connect.cookies(cookies);
        
        Document document = connect.post();
        System.out.println("-----------爬到的成績的上一個頁面--------------");
        String html = document.toString();
        System.out.println(html);
        // 重新獲取到viewState
        this.getViewState(html);
        return html;

        
    }
    
    /**
     * 爬取成績頁面
     */
    public String crawGrade(String xuenian,String xueqi,Map<String,String> cookies,String viewStata,String xuehao) throws IOException{
        String urlLogin = "http://newjwc.tyust.edu.cn/xscjcx.aspx?xh="+xuehao+"&xm=%C7%C7%C0%FB%C7%BF&gnmkdm=N121613";
        Connection connect = Jsoup.connect(urlLogin);
        connect.timeout(5 * 100000);
        // 偽造請求頭
        connect.header("Accept",
                "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8")
        .header("Accept-Encoding", "gzip, deflate");
        connect.header("Accept-Language", "zh-CN,zh;q=0.9").header("Connection", "keep-alive");
        connect.header("Content-Length", "74642").header("Content-Type", "application/x-www-form-urlencoded");
        connect.header("Host", "newjwc.tyust.edu.cn").header("Referer", "http://newjwc.tyust.edu.cn/xscjcx.aspx?xh=201420020123&xm=%C7%C7%C0%FB%C7%BF&gnmkdm=N121613");
        connect.header("User-Agent",
                "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36");
        
        // 攜帶登陸信息
        connect.data("__EVENTTARGET","")
        .data("__EVENTARGUMENT", "")
        .data("__VIEWSTATE", this.viewState)
        .data("hidLanguage","")
        .data("ddlXN", xuenian)
        .data("ddlXQ", xueqi)
        .data("btn_xn", "")
        .data("ddl_kcxz", "");
        
        connect.cookies(cookies);
        
        Document document = connect.post();
        System.out.println("-----------爬到的成績的頁面--------------");
        String html = document.toString();
        //更新viewstate
        this.getViewState(html);
        System.out.println(html);
        return html;
    }

    public void setViewState(String viewState) {
        this.viewState = viewState;
    }
    
    
    
}

 

6.收集成績的類

package cn.qlq.craw.JsoupCrawJWXT;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

/**
 * 收集成績與輸出成績
 * 
 * @author liqiang
 *
 */
@SuppressWarnings("all")
public class GradeOutput {
    /**
     * 保存成績的集合
     */
    private List<Map<String, Object>> datas;

    public GradeOutput() {
        this.datas = new ArrayList<Map<String, Object>>();
    }

    /**
     * 收集成績
     * 
     * @param html
     * @return
     */
    public String collectGrade(String html) {
        // 解析html
        Document document = Jsoup.parse(html);
        // 獲取成績表格
        Element table = document.select("#Datagrid1").first();
        // 選擇除表格表頭之外的元素
        Elements trs = table.select("tr:gt(0)");
        for (Element ele : trs) {
            Map result = new LinkedHashMap();
            Elements ele0 = ele.select("td:eq(0)");// 找到學年
            result.put("xuenian", ele0.text());
            Elements ele1 = ele.select("td:eq(1)");// 找到學期
            result.put("xueqi", ele1.text());
            Elements ele3 = ele.select("td:eq(3)");// 找到課程名稱
            result.put("kecheng", ele3.text());
            Elements ele8 = ele.select("td:eq(8)");// 找到成績
            result.put("chengji", ele8.text());
            this.datas.add(result);
        }
        return null;
    }

    /**
     * 輸出成績到控制台
     */
    public void outPutGrade() {
        if (this.datas == null || this.datas.size() == 0) {
            return;
        }
        System.out.println("-------下面是提取到的成績--------");
        for (Map result : datas) {

            System.out.println(result.get("xuenian") + "\t" + result.get("xueqi") + "\t" + result.get("kecheng") + "\t"
                    + result.get("chengji") + "\t");
        }

    }

    /**
     * 最后處理所有的數據，寫出到html或者保存數據庫
     * 
     * @throws IOException
     */
    public void outputDatas2Html() throws IOException {
        if (datas != null && datas.size() > 0) {
            // 讀取文件存儲位置
            String directory = ResourcesUtil.getValue("path", "file");
            
            File file = new File(directory+"\\gradeOut.html");
            // 如果文件不存在就創建文件
            if (!file.exists()) {
                file.createNewFile();
            }
            // 構造FileWriter用於向文件中輸出信息(此構造方法可以接收file參數，也可以接收fileName參數)
            FileWriter fileWriter = new FileWriter(file);
            // 開始寫入數據
            fileWriter.write("<html>");
            fileWriter.write("<head>");
            fileWriter.write("<title>xxx成績單</title>");
            fileWriter
                    .write("<style>table{width:100%;table-layout: fixed;word-break: break-all; word-wrap: break-word;}"
                            + "table td{border:1px solid black;width:300px}</style>");
            fileWriter.write("</head>");
            fileWriter.write("<body>");
            fileWriter.write("<table cellpadding='0' cellspacing='0' style='text-align:center;'>");
            fileWriter.write(
                    "<tr style='background-color:#95caca;font-size:20px'><td>學年</td><td>學期</td><td>課程名字</td><td>成績</td></tr>");

            for (Map<String, Object> data : datas) {
                String xuenian = (String) data.get("xuenian");
                String xueqi = (String) data.get("xueqi");
                String kecheng = (String) data.get("kecheng");
                String chengji = (String) data.get("chengji");
                fileWriter.write("<tr>");
                fileWriter.write("<td>" + xuenian + "</td>");
                fileWriter.write("<td>" + xueqi + "</td>");
                fileWriter.write("<td>" + kecheng + "</td>");
                fileWriter.write("<td>" + chengji + "</td>");
                fileWriter.write("</tr>");

            }
            fileWriter.write("</table>");
            fileWriter.write("</body>");
            fileWriter.write("</html>");
            // 關閉文件流
            fileWriter.close();
        }
    }

    public List<Map<String, Object>> getDatas() {
        return datas;
    }

    public void setDatas(List<Map<String, Object>> datas) {
        this.datas = datas;
    }

}

 

 

 

path.properties (設置驗證碼圖片和最后的成績單輸出到哪個位置)

#fileToSave
#yzm
file=C:\\Users\\liqiang\\Desktop

 

 

讀取上述配置文件的工具類:

package cn.qlq.craw.JsoupCrawJWXT;


import java.io.Serializable;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.Set;

/**
 * 資源文件讀取工具類
 * 
 */
public class ResourcesUtil implements Serializable {

    private static final long serialVersionUID = -7657898714983901418L;

    /**
     * 系統語言環境，默認為中文zh
     */
    public static final String LANGUAGE = "zh";

    /**
     * 系統國家環境，默認為中國CN
     */
    public static final String COUNTRY = "CN";
    private static Locale getLocale() {
        Locale locale = new Locale(LANGUAGE, COUNTRY);
        return locale;
    }

    /**
     * 根據語言、國家、資源文件名和key名字獲取資源文件值
     * 
     * @param language
     *            語言
     * 
     * @param country
     *            國家
     * 
     * @param baseName
     *            資源文件名
     * 
     * @param section
     *            key名字
     * 
     * @return 值
     */
    private static String getProperties(String baseName, String section) {
        String retValue = "";
        try {
            Locale locale = getLocale();
            ResourceBundle rb = ResourceBundle.getBundle(baseName, locale);
            retValue = (String) rb.getObject(section);
        } catch (Exception e) {
            e.printStackTrace();
            // TODO 添加處理
        }
        return retValue;
    }

    /**
     * 通過key從資源文件讀取內容
     * 
     * @param fileName
     *            資源文件名
     * 
     * @param key
     *            索引
     * 
     * @return 索引對應的內容
     */
    public static String getValue(String fileName, String key) {
        String value = getProperties(fileName,key);
        return value;
    }

    public static List<String> gekeyList(String baseName) {
        Locale locale = getLocale();
        ResourceBundle rb = ResourceBundle.getBundle(baseName, locale);

        List<String> reslist = new ArrayList<String>();

        Set<String> keyset = rb.keySet();
        for (Iterator<String> it = keyset.iterator(); it.hasNext();) {
            String lkey = (String)it.next();
            reslist.add(lkey);
        }

        return reslist;

    }

    /**
     * 通過key從資源文件讀取內容，並格式化
     * 
     * @param fileName
     *            資源文件名
     * 
     * @param key
     *            索引
     * 
     * @param objs
     *            格式化參數
     * 
     * @return 格式化后的內容
     */
    public static String getValue(String fileName, String key, Object[] objs) {
        String pattern = getValue(fileName, key);
        String value = MessageFormat.format(pattern, objs);
        return value;
    }

    public static void main(String[] args) {
        System.out.println(getValue("resources.messages", "101",new Object[]{100,200}));
        
        
        //根據操作系統環境獲取語言環境
        /*Locale locale = Locale.getDefault();
        System.out.println(locale.getCountry());//輸出國家代碼
        System.out.println(locale.getLanguage());//輸出語言代碼s
        
        //加載國際化資源（classpath下resources目錄下的messages.properties，如果是中文環境會優先找messages_zh_CN.properties）
        ResourceBundle rb = ResourceBundle.getBundle("resources.messages", locale);
        String retValue = rb.getString("101");//101是messages.properties文件中的key
        System.out.println(retValue);
        
        //信息格式化，如果資源中有{}的參數則需要使用MessageFormat格式化，Object[]為傳遞的參數，數量根據資源文件中的{}個數決定
        String value = MessageFormat.format(retValue, new Object[]{100,200});
        System.out.println(value);
*/

    }
}

 

 

 

 

git地址:https://github.com/qiao-zhi/javaCraw