从零打造微前端框架:实战“汽车资讯平台”项目

mb610a482299d2d 2021-08-07 00:35:00 阅读数:65

本文一共[544]字,预计阅读时长:1分钟~
前端框架

从零打造微前端框架:实战“汽车资讯平台”项目

超清原画 完整无密 网盘分享 下载地址: 网盘链接
为什么要学微前端架构?当你的项目越来越复杂,工程越来越大,代码冲突越来越频繁,打包越来越慢的时候,就该好好学习下微前端架构了。本课程将带你从零打造一个微前端框架,并实战一个汽车资讯平台,让你系统掌握微前端架构设计与落地能力,轻松解构巨型应用。

适合人群
2~5 年前端开发人员
初中级架构设计人员
技术储备
具备 2 年前端工程师必备基础和框架技术,如:Nodejs 基础、Vue/React/ Angular 基础。
环境参数
前端 vue2/3、react15/16
后端 koa
发布平台 express

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 stuCoursePair = new ArrayList();
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(“查询成果测试-------”);
jw.queryStuGrade(“2015-2016”, “1”);
// 查询西校区,周一,第12节空教室测试。
// jw.queryCla
oom(“1”, “1”, “2”);
System.out.println(“查询空教室测试------”);
jw.queryCla
oom();
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
}
}
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 queryCla
oomUrl = GlobalConstant.QUERY_CLAOOM_URL;
private String queryCla
oomGnmkdm = GlobalConstant.QUERY_CLAOOM_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;
/
*
* 登录功用
*
* @param stuNumber
* @param password
* @return
* @throws Exception
* @throws UnsupportedOperationException
/
public boolean login(String stuNumber, String password)
throws UnsupportedOperationException, Exception {
this.stuNumber = stuNumber;
// 获取考证码
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, “”, “”);
// 将考证码下载到C盘
IOUtils.getSecret(responseSecret.getEntity().getContent(),
“secretCode.png”, “c://”);
Scanner sc = new Scanner(System.in);
System.out.println(“请输入考证码:”);
// 手动填充方才获取的考证码的值
String secret = sc.next().trim();
HttpPost loginPost = new HttpPost(loginUrl);// 创立登录的Post恳求
loginPost.setHeader(“Cookie”, Cookie);// 带上第一次恳求的Cookie
List nameValuePairLogin = new ArrayList();// 封装Post提交参数
nameValuePairLogin
.add(new BasicNameValuePair(“__VIEWSTATE”, viewState));// 躲藏表单值
nameValuePairLogin
.add(new BasicNameValuePair(“txtUserName”, stuNumber));// 学号
nameValuePairLogin.add(new BasicNameValuePair(“TextBox2”, password));// 密码
nameValuePairLogin.add(new BasicNameValuePair(“txtSecretCode”, secret));// 考证码
nameValuePairLogin.add(new BasicNameValuePair(“RadioButtonList1”,
identityStu));// 身份,默许学生
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:判别提交数据能否胜利,胜利返回302
if (responseLogin.getStatusLine().getStatusCode() == 302) {
// 假如提交胜利,带着Cookie恳求重定向的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(“登录胜利!欢送您:” + 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 queryCla
oom(String xiaoqu, String xqj, String sjd)
throws Exception {
CloseableHttpClient client = HttpClients.createDefault();
String newQueryCla
ommUrl = queryClaoomUrl + stuNumber + “&xm=”
+ stuName + queryCla
oomGnmkdm;// 拼接恳求的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(newQueryCla
ommUrl, Cookie,
mainUrl + stuNumber);
// 封装查询空教室恳求参数
List queryCla
oomPair = new ArrayList();
queryCla
oomPair.add(new BasicNameValuePair(“__EVENTTARGET”, “”));
queryCla
oomPair.add(new BasicNameValuePair(“__EVENTARGUMENT”, “”));
queryCla
oomPair
.add(new BasicNameValuePair(“__VIEWSTATE”, viewState));
queryCla
oomPair.add(new BasicNameValuePair(“xiaoq”, xiaoqu));// 校区类型,默许西校区
queryCla
oomPair.add(new BasicNameValuePair(“jslb”, “”));// 教室类别,默许为空
queryCla
oomPair.add(new BasicNameValuePair(“min_zws”, “0”));// 最小座位数,默许为0
queryCla
oomPair.add(new BasicNameValuePair(“max_zws”, “”));// 最大座位数,默许为空
queryCla
oomPair.add(new BasicNameValuePair(“ddlKsz”, nowWeek));// 起始周,默许当前周
queryCla
oomPair.add(new BasicNameValuePair(“ddlJsz”, nowWeek));// 完毕周,默许当前周
queryCla
oomPair.add(new BasicNameValuePair(“xqj”, xqj));// 星期几,默许当天
queryCla
oomPair.add(new BasicNameValuePair(“ddlDsz”, “”));// 单双周,默许
queryCla
oomPair.add(new BasicNameValuePair(“sjd”, parseSjd));// 第几节
queryCla
oomPair.add(new BasicNameValuePair(“Button2”, “空教室查询”));
queryCla
oomPair.add(new BasicNameValuePair(“xn”, “2015-2016”));
queryCla
oomPair.add(new BasicNameValuePair(“xq”, “2”));
queryCla
oomPair.add(new BasicNameValuePair(“ddlSyXn”, “2015-2016”));
queryCla
oomPair.add(new BasicNameValuePair(“ddlSyxq”, “2”));
UrlEncodedFormEntity entityCla
oom = new UrlEncodedFormEntity(
queryCla
oomPair);
HttpPost queryCla
oomPost = new HttpPost(newQueryClaommUrl);
// newQueryCla
ommUrl示例: http://jwgl2.ujn.edu.cn/xxjsjy.aspx?xh=20121214104&xm=XXX&gnmkdm=N121611
queryCla
oomPost.setEntity(entityClaoom);
queryCla
oomPost.setHeader(“Referer”, mainUrl + stuNumber);// 设置头信息
queryCla
oomPost.setHeader(“Cookie”, Cookie);
HttpResponse responseCla
oom = client.execute(queryClaoomPost);
InputStream is = responseCla
oom.getEntity().getContent();
String html = IOUtils.getHtml(is, “GB2312”);
Document doc = Jsoup.parse(html);
Elements eleCla
oom = doc.select(“td”);
Elements eleInfo = doc.select(“#lblbt”);
System.out.println(eleInfo.get(0).text());
for (int i = 0; i < eleCla
oom.size(); i++) {
// 只打印教室称号
if (i % 8 == 1) {
System.out.println(eleCla
oom.get(i).text());
}
}
client.close();
}
/
*
* 重载查询空教室办法,默许时间,课程节次的无参数查询办法
*
* @throws IOException
* @throws ClientProtocolException
/
public void queryCla
oom() 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().queryCla
oom(xixiaoqu, weekDay, sdj);
}
/
*
* 查询个人成果办法
*
* @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);
// 封装恳求参数
List queryGradePair = new ArrayList();
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”, “学期成果”));
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
标签内容并输出

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,其他时间默许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());
}
}

package com.ican.yueban.utils;
/**

  • 本系统一切常量定义
  • @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”;// 考证码页面
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_CLA
OOM_URL = “ http://jwgl2.ujn.edu.cn/xxjsjy.aspx?xh=”;// 济大查询空教室链接
public static final String QUERY_CLA
*OOM_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=”;// 济大查询个人成果链接
public static final String QUERY_STU_GRADE_GNMKDM = “&gnmkdm=N121605”;// 济大查询个人成果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’”;// 白昼
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”;// 学期成果
public static final String BTN_XUENIAN = “btn_xn”;// 学年成果
public static final String BTN_LINIAN = “btn_zcj”;// 历年成果
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”;// 认证经过
public static final String COMMENT_TYPE_NEWTHINGS = “1”;// 评论类型1:新颖事
public static final String COMMENT_TYPE_INTEREST = “2”;// 评论类型2:兴味活动
}

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 {
// 结构URL
URL url = new URL(urlString);
// 翻开衔接
URLConnection con = url.openConnection();
// 设置恳求超时为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);
// 开端读取
while ((len = is.read(bs)) != -1) {
os.write(bs, 0, len);
}
// 终了,关闭一切链接
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();
}
/
*
* 判别字符编码集
*
* @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—》获取考证码
*
* @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);
// 开端读取
while ((len = is.read(bs)) != -1) {
os.write(bs, 0, len);
}
// 终了,关闭一切链接
os.close();
is.close();
}
/
*
* 获取躲藏字段的__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;
}
}

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;
}
}

版权声明:本文为[mb610a482299d2d]所创,转载请带上原文链接,感谢。 https://blog.51cto.com/u_15322395/3301853