关于java:Java全栈工程师已完结

package com.ican.yueban.jwgl;

import java.io.IOException;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;

import com.ican.yueban.utils.DateUtils;
import com.ican.yueban.utils.GlobalConstant;
import com.ican.yueban.utils.IOUtils;
import com.ican.yueban.utils.ParseUtils;

public class Jwgl {

private static String stuNumber = "";
private static String stuName = "";
private static String Cookie = "";
private String indexUrl = GlobalConstant.INDEX_URL;
private String secretCodeUrl = GlobalConstant.SECRETCODE_URL;
private String loginUrl = GlobalConstant.LOGIN_URL;
private String mainUrl = GlobalConstant.MAIN_URL;
private String queryClassroomUrl = GlobalConstant.QUERY_CLASSROOM_URL;
private String queryClassroomGnmkdm = GlobalConstant.QUERY_CLASSROOM_GNMKDM;
private String queryStuGradeUrl = GlobalConstant.QUERY_STU_GRADE_URL;
private String queryStuGradeGnmkd = GlobalConstant.QUERY_STU_GRADE_GNMKDM;
private String queryStuCourseUrl = GlobalConstant.QUERY_STU_COURSE_URL;
private String queryStuCourseGnmkd = GlobalConstant.QUERY_STU_COURSE_GNMKDM;
private String xixiaoqu = GlobalConstant.XIXIAOQU;
private String identityStu = GlobalConstant.IDENTITY_STU;

/**
 * 登录性能
 * 
 * @param stuNumber
 * @param password
 * @return
 * @throws Exception
 * @throws UnsupportedOperationException
 */
public boolean login(String stuNumber, String password)
        throws UnsupportedOperationException, Exception {
    this.stuNumber = stuNumber;
    // 获取验证码
    HttpGet secretCodeGet = new HttpGet(secretCodeUrl);
    CloseableHttpClient client = HttpClients.createDefault();
    CloseableHttpResponse responseSecret = client.execute(secretCodeGet);
    // 获取返回的 Cookie
    Cookie = responseSecret.getFirstHeader("Set-Cookie").getValue();
    String viewState = IOUtils.getViewState(indexUrl, "","");
    // 将验证码下载到 C 盘
    IOUtils.getSecret(responseSecret.getEntity().getContent(),
            "secretCode.png", "c://");
    Scanner sc = new Scanner(System.in);
    System.out.println("请输出验证码：");
    // 手动填充方才获取的验证码的值
    String secret = sc.next().trim();
    HttpPost loginPost = new HttpPost(loginUrl);// 创立登录的 Post 申请
    loginPost.setHeader("Cookie", Cookie);// 带上第一次申请的 Cookie
    List<NameValuePair> nameValuePairLogin = new ArrayList<NameValuePair>();// 封装 Post 提交参数
    nameValuePairLogin
            .add(new BasicNameValuePair("__VIEWSTATE", viewState));// 暗藏表单值
    nameValuePairLogin
            .add(new BasicNameValuePair("txtUserName", stuNumber));// 学号
    nameValuePairLogin.add(new BasicNameValuePair("TextBox2", password));// 明码
    nameValuePairLogin.add(new BasicNameValuePair("txtSecretCode", secret));// 验证码
    nameValuePairLogin.add(new BasicNameValuePair("RadioButtonList1",
            identityStu));// 身份, 默认学生
    nameValuePairLogin.add(new BasicNameValuePair("Button1", ""));
    nameValuePairLogin.add(new BasicNameValuePair("lbLanguage", ""));
    nameValuePairLogin.add(new BasicNameValuePair("hidPdrs", ""));
    nameValuePairLogin.add(new BasicNameValuePair("hidsc", ""));
    UrlEncodedFormEntity entity = new UrlEncodedFormEntity(nameValuePairLogin, "GB2312");
    loginPost.setEntity(entity);
    HttpResponse responseLogin = client.execute(loginPost);
    // client1.close();
    // 第三步: 判断提交数据是否胜利，胜利返回 302
    if (responseLogin.getStatusLine().getStatusCode() == 302) {
        // 如果提交胜利，带着 Cookie 申请重定向的 main 页面，并获取学生姓名
        HttpGet mainGet = new HttpGet(mainUrl + stuNumber);
        mainGet.setHeader("Cookie", Cookie);
        mainGet.setHeader("Referer", loginUrl);
        HttpResponse responseMain = client.execute(mainGet);
        InputStream is = responseMain.getEntity().getContent();
        String html = "";
        try {html = IOUtils.getHtml(is, "GB2312");
        } catch (Exception e) {System.out.println("解析 html 失败！");
            e.printStackTrace();}
        stuName = Jsoup.parse(html).getElementById("xhxm").text();
        System.out.println("登录胜利！欢迎您：" + stuName);
        client.close();
        return true;
    } else {System.out.println("登录失败！");
        client.close();
        return false;
    }

}

/**
 * 查问空教室
 * 
 * @throws Exception
 * 
 * @throws Exception
 */
public void queryClassroom(String xiaoqu, String xqj, String sjd)
        throws Exception {CloseableHttpClient client = HttpClients.createDefault();
    String newQueryClassrommUrl = queryClassroomUrl + stuNumber + "&xm="
            + stuName + queryClassroomGnmkdm;// 拼接申请的 Url
    String parseSjd = ParseUtils.parseWeek(sjd);// 解析以后节次对应的字符串
    String nowWeek = DateUtils.getWeek() + "";// 获取以后工夫是第几周
    String viewState = IOUtils.getViewState(newQueryClassrommUrl, Cookie,
            mainUrl + stuNumber);
    // 封装查问空教室申请参数
    List<NameValuePair> queryClassroomPair = new ArrayList<NameValuePair>();
    queryClassroomPair.add(new BasicNameValuePair("__EVENTTARGET", ""));
    queryClassroomPair.add(new BasicNameValuePair("__EVENTARGUMENT", ""));
    queryClassroomPair
            .add(new BasicNameValuePair("__VIEWSTATE", viewState));
    queryClassroomPair.add(new BasicNameValuePair("xiaoq", xiaoqu));// 校区类型，默认西校区
    queryClassroomPair.add(new BasicNameValuePair("jslb", ""));// 教室类别，默认为空
    queryClassroomPair.add(new BasicNameValuePair("min_zws", "0"));// 最小座位数，默认为 0
    queryClassroomPair.add(new BasicNameValuePair("max_zws", ""));// 最大座位数，默认为空
    queryClassroomPair.add(new BasicNameValuePair("ddlKsz", nowWeek));// 起始周，默认以后周
    queryClassroomPair.add(new BasicNameValuePair("ddlJsz", nowWeek));// 完结周，默认以后周
    queryClassroomPair.add(new BasicNameValuePair("xqj", xqj));// 星期几, 默认当天
    queryClassroomPair.add(new BasicNameValuePair("ddlDsz", ""));// 单双周，默认
    queryClassroomPair.add(new BasicNameValuePair("sjd", parseSjd));// 第几节
    queryClassroomPair.add(new BasicNameValuePair("Button2", "空教室查问"));
    queryClassroomPair.add(new BasicNameValuePair("xn", "2015-2016"));
    queryClassroomPair.add(new BasicNameValuePair("xq", "2"));
    queryClassroomPair.add(new BasicNameValuePair("ddlSyXn", "2015-2016"));
    queryClassroomPair.add(new BasicNameValuePair("ddlSyxq", "2"));
    UrlEncodedFormEntity entityClassroom = new UrlEncodedFormEntity(queryClassroomPair);

    HttpPost queryClassroomPost = new HttpPost(newQueryClassrommUrl);
    // newQueryClassrommUrl 示例:http://jwgl2.ujn.edu.cn/xxjsjy.aspx?xh=20121214104&xm=XXX&gnmkdm=N121611
    queryClassroomPost.setEntity(entityClassroom);
    queryClassroomPost.setHeader("Referer", mainUrl + stuNumber);// 设置头信息
    queryClassroomPost.setHeader("Cookie", Cookie);
    HttpResponse responseClassroom = client.execute(queryClassroomPost);
    InputStream is = responseClassroom.getEntity().getContent();
    String html = IOUtils.getHtml(is, "GB2312");
    Document doc = Jsoup.parse(html);
    Elements eleClassroom = doc.select("td");
    Elements eleInfo = doc.select("#lblbt");
    System.out.println(eleInfo.get(0).text());
    for (int i = 0; i < eleClassroom.size(); i++) {
        // 只打印教室名称
        if (i % 8 == 1) {System.out.println(eleClassroom.get(i).text());
        }
    }
    client.close();}

/**
 * 重载查问空教室办法，默认工夫，课程节次的无参数查询方法
 * 
 * @throws IOException
 * @throws ClientProtocolException
 */
public void queryClassroom() throws ClientProtocolException, IOException,
        Exception {String weekDay = DateUtils.getWeekDay() + "";// 获取以后工夫是星期几
    String sdj = DateUtils.getNowCourse() + "";// 获取以后工夫是第几节课
    new Jwgl().queryClassroom(xixiaoqu, weekDay, sdj);
}

/**
 * 查问集体问题办法
 * 
 * @throws ClientProtocolException
 * @throws IOException
 */
public void queryStuGrade(String xn, String xq)
        throws ClientProtocolException, IOException {CloseableHttpClient client = HttpClients.createDefault();
    String newQueryStuGradeUrl = queryStuGradeUrl + stuNumber + "&xm="
            + stuName + queryStuGradeGnmkd;
    HttpPost queryGradePost = new HttpPost(newQueryStuGradeUrl);
    String viewState = IOUtils.getViewState(newQueryStuGradeUrl, Cookie,
            mainUrl + stuNumber);
    // 封装申请参数
    List<NameValuePair> queryGradePair = new ArrayList<NameValuePair>();
    queryGradePair.add(new BasicNameValuePair("__EVENTTARGET", ""));
    queryGradePair.add(new BasicNameValuePair("__EVENTARGUMENT", ""));
    queryGradePair.add(new BasicNameValuePair("__VIEWSTATE", viewState));
    queryGradePair.add(new BasicNameValuePair("hidLanguage", ""));
    queryGradePair.add(new BasicNameValuePair("ddlXN", xn));// 学年
    queryGradePair.add(new BasicNameValuePair("ddlXQ", xq));// 学期
    queryGradePair.add(new BasicNameValuePair("ddl_kcxz", ""));
    queryGradePair.add(new BasicNameValuePair("btn_xq", "学期成绩"));
    queryGradePost.setHeader("Cookie", Cookie);
    queryGradePost.setHeader("Referer", mainUrl + stuNumber);
    UrlEncodedFormEntity entityGrade = new UrlEncodedFormEntity(queryGradePair);
    queryGradePost.setEntity(entityGrade);
    HttpResponse responQueryGradePost = client.execute(queryGradePost);

    String gradeHtml = IOUtils.getHtml(responQueryGradePost.getEntity()
            .getContent(), "GB2312");
    // System.out.println(gradeHtml);
    Document gradeDoc = Jsoup.parse(gradeHtml);
    Elements eleGrade = gradeDoc.select("td");
    // 按需要解析 html<td> 标签内容并输入
    for (int i = 0; i < 7; i++) {System.out.println(eleGrade.get(i).text());
    }

    for (int i = 11; i < eleGrade.size(); i = i + 10) {if (i + 15 < eleGrade.size()) {System.out.print(eleGrade.get(i).text() + " ");
            i = i + 5;
            System.out.print(eleGrade.get(i).text());
            System.out.println();}
        client.close();}

}

/**
 * 查问集体课表办法
 * 
 * @param xnd
 * @param xqd
 * @throws ClientProtocolException
 * @throws IOException
 */
public void queryStuCourse(String xnd, String xqd)
        throws ClientProtocolException, IOException {CloseableHttpClient client = HttpClients.createDefault();
    String newQueryStuCourseUrl = queryStuCourseUrl + stuNumber + "&xm="
            + stuName + queryStuCourseGnmkd;
    String viewState = IOUtils.getViewState(newQueryStuCourseUrl, Cookie,
            mainUrl + stuNumber);
    HttpPost queryStuCoursePost = new HttpPost(newQueryStuCourseUrl);
    List<NameValuePair> stuCoursePair = new ArrayList<NameValuePair>();
    stuCoursePair.add(new BasicNameValuePair("__EVENTTARGET", "xqd"));
    stuCoursePair.add(new BasicNameValuePair("__EVENTARGUMENT", ""));
    stuCoursePair.add(new BasicNameValuePair("__VIEWSTATE", viewState));
    stuCoursePair.add(new BasicNameValuePair("xnd", xnd));
    stuCoursePair.add(new BasicNameValuePair("xqd", xqd));
    UrlEncodedFormEntity entitySource = new UrlEncodedFormEntity(stuCoursePair);
    queryStuCoursePost.setEntity(entitySource);
    queryStuCoursePost.setHeader("Cookie", Cookie);
    queryStuCoursePost.setHeader("Referer", mainUrl + stuNumber);
    HttpResponse responseStuCourse = client.execute(queryStuCoursePost);
    String html = IOUtils.getHtml(responseStuCourse.getEntity()
            .getContent(), "GB2312");
    Document docCourse = Jsoup.parse(html);
    Elements eleCourse = docCourse.select("td");
    for (int i = 2; i < eleCourse.size(); i++) {System.out.print(eleCourse.get(i).text() + " ");
        if (i % 9 == 0) {System.out.println();
        }
    }
}

public static void main(String[] args) {Jwgl jw = new Jwgl();
    try {jw.login("这里是学号", "这里是明码");
        System.out.println("查问问题测试 -------");
        jw.queryStuGrade("2015-2016", "1");
        // 查问西校区，周一，第 12 节空教室测试。// jw.queryClassroom("1", "1", "2");
        System.out.println("查问空教室测试 ------");

package com.ican.yueban.utils;

import java.text.ParseException;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class DateUtils {

private static String startDay = GlobalConstant.START_DAY;// 开学日期
private static String endDay = GlobalConstant.END_DAY;// 放假日期

/**
 * 获取以后工夫是第几节课，只限 8 -16 点之间, 其余工夫默认 1，2 节课。* 
 * @return
 */
public static int getNowCourse() {SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");// 设置日期格局
    String nowDate = df.format(new Date());
    if (nowDate.startsWith("08") || nowDate.startsWith("09")) {return 1;// 12 节课。} else if (nowDate.startsWith("10") || nowDate.startsWith("11")) {return 2;// 34 节课，以此类推。} else if (nowDate.startsWith("12") || nowDate.startsWith("13")
            || nowDate.startsWith("14")) {return 3;} else if (nowDate.startsWith("15") || nowDate.startsWith("16")) {return 4;} else {return 1;}
}

/**
 * 获取以后工夫是第几周
 * 
 * @return
 */
public static int getWeek() {
    int days = 0;
    int nowWeek = 0;
    try {SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");// 设置日期格局
        String nowDate = df.format(new Date());
        int nowDaysBetween = daysBetween(startDay, nowDate) + 1;
        days = daysBetween(startDay, endDay);
        int x = nowDaysBetween % 7;
        if (x == 0) {nowWeek = nowDaysBetween / 7;} else {nowWeek = nowDaysBetween / 7 + 1;}

    } catch (ParseException e) {System.out.println("输出的日期不非法，解析日期失败");
        e.printStackTrace();}
    return nowWeek;
}

/**
 * 获取以后工夫是星期几
 * 
 * @return
 */
public static int getWeekDay() {Calendar cal = Calendar.getInstance();
    cal.setTime(new Date());
    if (cal.get(Calendar.DAY_OF_WEEK) - 1 == 0) {return 7;}
    return cal.get(Calendar.DAY_OF_WEEK) - 1;
}

/**
 * 计算两个 String 类型日期之间的天数
 * 
 * @param startDay
 * @param endDay
 * @return
 *

package com.ican.yueban.utils;

/**

本零碎所有常量定义
@author 宋开宗
*/

public interface GlobalConstant {

public static final String START_DAY = "2016-02-29";
public static final String END_DAY = "2016-07-10";
public static final String INDEX_URL = "http://jwgl2.ujn.edu.cn";// 济大教务零碎首页
public static final String SECRETCODE_URL = "http://jwgl2.ujn.edu.cn/CheckCode.aspx";// 验证码页面
public static final String LOGIN_URL = "http://jwgl2.ujn.edu.cn/default2.aspx";// 济大教务零碎登录页
public static final String MAIN_URL = "http://jwgl2.ujn.edu.cn/xs_main.aspx?xh=";// 济大教务零碎主页，菜单页面
public static final String QUERY_CLASSROOM_URL = "http://jwgl2.ujn.edu.cn/xxjsjy.aspx?xh=";// 济大查问空教室链接
public static final String QUERY_CLASSROOM_GNMKDM = "&gnmkdm=N121611";// 济大查问空教室 gnmkdm
public static final String QUERY_STU_COURSE_URL = "http://jwgl2.ujn.edu.cn/xskbcx.aspx?xh=";// 济大查问集体课表链接
public static final String QUERY_STU_COURSE_GNMKDM = "&gnmkdm=N121603";// 济大查问集体课表 gnmkdm
public static final String QUERY_STU_GRADE_URL = "http://jwgl2.ujn.edu.cn/xscjcx.aspx?xh=";// 济大查问集体问题链接
public static final String QUERY_STU_GRADE_GNMKDM = "&gnmkdm=N121605";// 济大查问集体问题 gnmkdm
public static final String IDENTITY_STU = "学生";// 身份：学生
public static final String XIXIAOQU = "1";// 济大西校区标记
public static final String DONGXIAOQU = "2";// 济大东校区标记
public static final String ZHANGQIUXIAOQU = "3";// 济大章丘校区标记
public static final String CLASS1 = "'1'|'1','0','0','0','0','0','0','0','0'";// 1，2 节
public static final String CLASS2 = "'2'|'0','3','0','0','0','0','0','0','0'";// 3，4 节
public static final String CLASS3 = "'3'|'0','0','5','0','0','0','0','0','0'";// 5，6 节
public static final String CLASS4 = "'4'|'0','0','0','7','0','0','0','0','0'";// 7，8 节
public static final String CLASS5 = "'5'|'0','0','0','0','9','0','0','0','0'";// 8，10 节
public static final String CLASS6 = "'6'|'0','0','0','0','0','11','0','0','0'";// 11，12 节
public static final String CLASS7 = "'7'|'1','3','0','0','0','0','0','0','0'";// 上午
public static final String CLASS8 = "'8'|'0','0','5','7','0','0','0','0','0'";// 下午
public static final String CLASS9 = "'9'|'1','3','5','7','0','0','0','0','0'";// 白天
public static final String CLASS10 = "'10'|'0','0','0','0','9','11','0','0','0'";// 早晨
public static final String CLASS11 = "'11'|'1','3','5','7','9','11','0','0','0'";// 全天

package com.ican.yueban.utils;

import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.jsoup.Jsoup;

public class IOUtils {

/**
 * 指定编码格局，把输出流转化为字符串
 * 
 * @param is
 * @return
 * @throws IOException
 */
public static String getHtml(InputStream is, String encoding)
        throws IOException {ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] buffer = new byte[1024];
    int len = 0;
    while ((len = is.read(buffer)) != -1) {bos.write(buffer, 0, len);
    }
    is.close();
    return new String(bos.toByteArray(), encoding);
}

/**
 * 下载图片
 * 
 * @param urlString
 * @param filename
 * @param savePath
 * @throws Exception
 */
public static void download(String urlString, String filename,
        String savePath) throws Exception {
    // 结构 URL
    URL url = new URL(urlString);
    // 关上连贯
    URLConnection con = url.openConnection();
    // 设置申请超时为 5s
    con.setConnectTimeout(5 * 1000);
    // 输出流
    InputStream is = con.getInputStream();

    // 1K 的数据缓冲
    byte[] bs = new byte[1024];
    // 读取到的数据长度
    int len;
    // 输入的文件流
    File sf = new File(savePath);
    if (!sf.exists()) {sf.mkdirs();
    }
    OutputStream os = new FileOutputStream(sf.getPath() + "\\" + filename);
    // 开始读取
    while ((len = is.read(bs)) != -1) {os.write(bs, 0, len);
    }
    // 结束，敞开所有链接
    os.close();
    is.close();}

/**
 * 图片裁剪工具类
 * 
 * @param src
 * @param dest
 * @param x
 * @param y
 * @param w
 * @param h
 * @throws IOException
 */
public static void cutImage(String src, String dest, int x, int y, int w,
        int h) throws IOException {Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");
    ImageReader reader = (ImageReader) iterator.next();
    InputStream in = new FileInputStream(src);
    ImageInputStream iis = ImageIO.createImageInputStream(in);
    reader.setInput(iis, true);
    ImageReadParam param = reader.getDefaultReadParam();
    Rectangle rect = new Rectangle(x, y, w, h);
    param.setSourceRegion(rect);
    BufferedImage bi = reader.read(0, param);
    ImageIO.write(bi, "jpg", new File(dest));
    in.close();}

/**
 * 判断字符编码集
 * 
 * @param str
 * @return
 */
public static String getEncoding(String str) {
    String encode = "GB2312";
    try {if (str.equals(new String(str.getBytes(encode), encode))) {
            String s = encode;
            return s;
        }
    } catch (Exception exception) { }
    encode = "ISO-8859-1";
    try {if (str.equals(new String(str.getBytes(encode), encode))) {
            String s1 = encode;
            return s1;
        }
    } catch (Exception exception1) { }
    encode = "UTF-8";
    try {if (str.equals(new String(str.getBytes(encode), encode))) {
            String s2 = encode;
            return s2;
        }
    } catch (Exception exception2) { }
    encode = "GBK";
    try {if (str.equals(new String(str.getBytes(encode), encode))) {
            String s3 = encode;
            return s3;
        }
    } catch (Exception exception3) { }
    return "未知";
}

/**
 * 把输出流转换成图片 ---》获取验证码
 * 
 * @param is
 * @param filename
 * @param savePath
 * @throws Exception
 */
public static void getSecret(InputStream is, String filename,
        String savePath) throws Exception {
    // 1K 的数据缓冲
    byte[] bs = new byte[1024];
    // 读取到的数据长度
    int len;
    // 输入的文件流
    File sf = new File(savePath);
    if (!sf.exists()) {sf.mkdirs();
    }
    OutputStream os = new FileOutputStream(sf.getPath() + "\\" + filename);
    // 开始读取
    while ((len = is.read(bs)) != -1) {os.write(bs, 0, len);

package com.ican.yueban.utils;

public class ParseUtils {

/**
 * 获取课程节次对应的字符串
 * @param course
 * @return
 */
public static String parseWeek(String course) {
    String sjd="";
    int nowCourse = Integer.parseInt(course);
    switch (nowCourse) {
    case 1:
        sjd=GlobalConstant.CLASS1;
        break;
    case 2:
        sjd=GlobalConstant.CLASS2;
        break;
    case 3:
        sjd=GlobalConstant.CLASS3;
        break;
    case 4:
        sjd=GlobalConstant.CLASS4;
        break;
    case 5:
        sjd=GlobalConstant.CLASS5;
        break;
    case 6:
        sjd=GlobalConstant.CLASS6;
        break;
    case 7:
        sjd=GlobalConstant.CLASS7;
        break;
    case 8:
        sjd=GlobalConstant.CLASS8;
        break;
    case 9:
        sjd=GlobalConstant.CLASS9;
        break;
    case 10:
        sjd=GlobalConstant.CLASS10;
        break;
    case 11:
        sjd=GlobalConstant.CLASS11;
        break;
    default:
        sjd=GlobalConstant.CLASS1;
        break;
    }

    return sjd;
}

}

download：Java 全栈工程师【已完结】