Java模拟登录正方教务抓取成绩、课表、空教室
投稿：lijiao
这篇文章主要介绍了Java模拟登录正方教务抓取成绩、课表、空教室等信息，Java实现模拟登录正方教务抓取成绩、课表、空教室，通过HttpClient来模拟浏览器请求，Jsoup解析网页内容，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Java模拟登录正方教务抓取成绩、课表、空教室等信息，供大家参考，具体内容如下
1.Jwgl.java
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;
/**
* 登录功能
*
* @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("请输入验证码：");
// 手动填充刚才获取的验证码的值
String secret = sc.next().trim();
HttpPost loginPost = new HttpPost(loginUrl);// 创建登录的Post请求
loginPost.setHeader("Cookie", Cookie);// 带上第一次请求的Cookie
List<NameValuePair> nameValuePairLogin = new ArrayList<NameValuePair>();// 封装Post提交参数
nameValuePairLogin
.add(new BasicNameValuePair("__VIEWSTATE", viewState));// 隐藏表单值
nameValuePairLogin
.add(new BasicNameValuePair("txtUserName", stuNumber));// 学号
nameValuePairLogin.add(new BasicNameValuePair("TextBox2", password));// 密码
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:判断提交数据是否成功，成功返回302
if (responseLogin.getStatusLine().getStatusCode() == 302) {
// 如果提交成功，带着Cookie请求重定向的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("登录成功！欢迎您：" + stuName);
client.close();
return true;
} else {
System.out.println("登录失败！");
client.close();
return false;
}
}
/**
* 查询空教室
*
* @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;// 拼接请求的Url
String parseSjd = ParseUtils.parseWeek(sjd);// 解析当前节次对应的字符串
String nowWeek = DateUtils.getWeek() + "";// 获取当前时间是第几周
String viewState = IOUtils.getViewState(newQueryClassrommUrl, Cookie,
mainUrl + stuNumber);
// 封装查询空教室请求参数
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，默认当前周
queryClassroomPair.add(new BasicNameValuePair("ddlJsz", nowWeek));// 结束周，默认当前周
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", "空教室查询"));
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();
}
/**
* 重载查询空教室方法，默认时间，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() + "";// 获取当前时间是星期几
String sdj = DateUtils.getNowCourse() + "";// 获取当前时间是第几节课
new Jwgl().queryClassroom(xixiaoqu, weekDay, sdj);
}
/**
* 查询个人成绩方法
*
* @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);
// 封装请求参数
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");
// 按需求解析html<td>标签内容并输出
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();
}
}
/**
* 查询个人课表方法
*
* @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", "这里是密码");
System.out.println("查询成绩测试-------");
jw.queryStuGrade("2015-2016", "1");
// 查询西校区，周一，第12节空教室测试。
// jw.queryClassroom("1", "1", "2");
System.out.println("查询空教室测试------");
jw.queryClassroom();
System.out.println("查询个人课表测试-------");
jw.queryStuCourse("2014-2015", "1");
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
//QQ:451209214
}
}2.DateUtils.java
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
/**
* 获取当前时间是第几节课，只限8-16点之间,其他时间默认1，2节课。
*
* @return
*/
public static int getNowCourse() {
SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");// 设置日期格式
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;
}
}
/**
* 获取当前时间是第几周
*
* @return
*/
public static int getWeek() {
int days = 0;
int nowWeek = 0;
try {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");// 设置日期格式
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("输入的日期不合法，解析日期失败");
e.printStackTrace();
}
return nowWeek;
}
/**
* 获取当前时间是星期几
*
* @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
* @throws ParseException
*/
public static int daysBetween(String startDay, String endDay)
throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar cal = Calendar.getInstance();
cal.setTime(sdf.parse(startDay));
long time1 = cal.getTimeInMillis();
cal.setTime(sdf.parse(endDay));
long time2 = cal.getTimeInMillis();
long between_days = (time2 - time1) / (1000 * 3600 * 24);
return Integer.parseInt(String.valueOf(between_days));
}
/**
* 以yyyy-MM-dd HH:mm:ss格式返回String类型系统时间
*
* @return
*/
public static String getNowDate() {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 设置日期格式
return df.format(new Date());
}
}
3.GlobalConstant.java
package com.ican.yueban.utils;
/**
* 本系统所有常量定义
*
* @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";// 济大教务系统首页
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";// 济大教务系统登录页
public static final String MAIN_URL = "http://jwgl2.ujn.edu.cn/xs_main.aspx?xh=";// 济大教务系统主页，菜单页面
public static final String QUERY_CLASSROOM_URL = "http://jwgl2.ujn.edu.cn/xxjsjy.aspx?xh=";// 济大查询空教室链接
public static final String QUERY_CLASSROOM_GNMKDM = "&gnmkdm=N121611";// 济大查询空教室gnmkdm
public static final String QUERY_STU_COURSE_URL = "http://jwgl2.ujn.edu.cn/xskbcx.aspx?xh=";// 济大查询个人课表链接
public static final String QUERY_STU_COURSE_GNMKDM = "&gnmkdm=N121603";// 济大查询个人课表gnmkdm
public static final String QUERY_STU_GRADE_URL = "http://jwgl2.ujn.edu.cn/xscjcx.aspx?xh=";// 济大查询个人成绩链接
public static final String QUERY_STU_GRADE_GNMKDM = "&gnmkdm=N121605";// 济大查询个人成绩gnmkdm
public static final String IDENTITY_STU = "学生";// 身份：学生
public static final String XIXIAOQU = "1";// 济大西校区标志
public static final String DONGXIAOQU = "2";// 济大东校区标志
public static final String ZHANGQIUXIAOQU = "3";// 济大章丘校区标志
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'";// 晚上
public static final String CLASS11 = "'11'|'1','3','5','7','9','11','0','0','0'";// 全天
public static final String BTN_XUEQI = "btn_xq";// 学期成绩
public static final String BTN_XUENIAN = "btn_xn";// 学年成绩
public static final String BTN_LINIAN = "btn_zcj";// 历年成绩
public static final String UNIVERSITY_CODE_UJN = "00001";// 济南大学标识代码
public static final String USER_STATE_N = "1";// 未认证
public static final String USER_STATE_Y = "2";// 认证通过
public static final String COMMENT_TYPE_NEWTHINGS = "1";// 评论类型1：新鲜事
public static final String COMMENT_TYPE_INTEREST = "2";// 评论类型2：兴趣活动
}
4.IOUtils.java
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 {
/**
* 指定编码格式 ，把输入流转化为字符串
*
* @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 {
// 构造URL
URL url = new URL(urlString);
// 打开连接
URLConnection con = url.openConnection();
// 设置请求超时为5s
con.setConnectTimeout(5 * 1000);
// 输入流
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;
// 输出的文件流
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);
}
// 完毕，关闭所有链接
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";
}
/**
* 把输入流转换成图片---》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;
// 输出的文件流
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);
}
// 完毕，关闭所有链接
os.close();
is.close();
}
/**
* 获取隐藏字段的__VIEWSTATE值
*
* @param url
* @param cookie
* @param referer
* @return
* @throws UnsupportedOperationException
* @throws ClientProtocolException
* @throws IOException
*/
public static String getViewState(String url, String cookie, String referer)
throws UnsupportedOperationException, ClientProtocolException,
IOException {
CloseableHttpClient client = HttpClients.createDefault();
HttpGet getViewState = new HttpGet(url);
getViewState.setHeader("Cookie", cookie);
getViewState.setHeader("Referer", referer);// 设置头信息
String s = IOUtils.getHtml(client.execute(getViewState).getEntity()
.getContent(), "GB2312");
String viewstate = Jsoup.parse(s).select("input[name=__VIEWSTATE]")
.val();
client.close();
return viewstate;
}
}
5. ParseUtils.java
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;
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助。