From ef885f9c7d11c0deec6a16822b88d69d74975543 Mon Sep 17 00:00:00 2001 From: lensferno Date: Fri, 24 Feb 2023 23:24:13 +0800 Subject: [PATCH] =?UTF-8?q?=E7=A0=94=E7=A9=B6=E7=94=9F=EF=BC=9A=E4=BF=AE?= =?UTF-8?q?=E6=AD=A3=E8=AF=BE=E8=A1=A8=E6=97=B6=E9=97=B4=E8=A7=A3=E6=9E=90?= =?UTF-8?q?=E7=AE=97=E6=B3=95?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../graduate/GraduateCourseTableParser.java | 126 +++++++++++------- 1 file changed, 81 insertions(+), 45 deletions(-) diff --git a/mywust-core/src/main/java/cn/linghang/mywust/core/parser/graduate/GraduateCourseTableParser.java b/mywust-core/src/main/java/cn/linghang/mywust/core/parser/graduate/GraduateCourseTableParser.java index ff74eca..e2bb252 100644 --- a/mywust-core/src/main/java/cn/linghang/mywust/core/parser/graduate/GraduateCourseTableParser.java +++ b/mywust-core/src/main/java/cn/linghang/mywust/core/parser/graduate/GraduateCourseTableParser.java @@ -16,9 +16,15 @@ import java.util.regex.Pattern; public class GraduateCourseTableParser implements Parser> { - private static final Pattern COURSE_TABLE_REGEX = Pattern.compile("课程:(?.*?)
班级:(?.*?)
\\((?.*?)\\)
(?.*?)
(?
.*?)
主讲教师:(?.*?)
"); + private static final Pattern COURSE_TABLE_REGEX = Pattern.compile("课程:(?.*?)
班级:(?.*?)
\\((?.*?)\\)
(?.*?) (?.*?)
主讲教师:(?.*?)
"); - private static final Pattern WEEK_REGEX = Pattern.compile("(?\\d+)-(?\\d+)周.*?星期(?[一二三四五六七日天])"); + private static final Pattern WEEK_REGEX = Pattern.compile("(?\\d+)-(?\\d+)周"); + + private static final Pattern WEEKDAY_SECTION_REGEX = Pattern.compile("星期(?[一二三四五六七日天])
(?([上下晚]\\d,?)+)"); + + private static final Pattern SECTION_REGEX = Pattern.compile("(?[上下晚])(?
\\d)"); + + private static final String courseGirdXpath = "//*[@id=\"DataGrid1\"]/tbody/tr/td[@rowspan]"; @Override public List parse(String html) throws ParseException { @@ -28,33 +34,34 @@ public class GraduateCourseTableParser implements Parser> { throw new ParseException("解析研究生课表失败：关键元素不存在...", html); } - // 初步拿到所有的课程格子 - Elements girds = table.getElementsByAttribute("rowspan"); - String girdsHtml = girds.outerHtml(); + Elements courseGirds = table.selectXpath(courseGirdXpath); - List courses = new ArrayList<>(girds.size()); + List courses = new ArrayList<>(courseGirds.size()); Course.CourseBuilder courseBuilder = Course.builder(); + for (Element courseGird : courseGirds) { + String girdHtml = courseGird.html(); - // 正则提取每一段课程文本 - Matcher matcher = COURSE_TABLE_REGEX.matcher(girdsHtml); - while (matcher.find()) { - String name = matcher.group("name"); - courseBuilder.name(name); + // 正则提取每一段课程文本 + Matcher matcher = COURSE_TABLE_REGEX.matcher(girdHtml); + while (matcher.find()) { + String name = matcher.group("name"); + courseBuilder.name(name); - String teachClass = matcher.group("class"); - courseBuilder.teachClass(teachClass); + String teachClass = matcher.group("class"); + courseBuilder.teachClass(teachClass); - String classroom = matcher.group("classRoom"); - courseBuilder.classroom(new Classroom("", "", "", classroom)); + String classroom = matcher.group("classRoom"); + courseBuilder.classroom(new Classroom("", "", "", classroom)); - String teacher = matcher.group("teacher"); - courseBuilder.teacher(teacher); + String teacher = matcher.group("teacher"); + courseBuilder.teacher(teacher); - String weekStr = matcher.group("week"); - this.parseWeek(weekStr, courseBuilder); + String weekStr = matcher.group("week"); + this.parseWeek(weekStr, courseBuilder); + + this.parseWeekdaySectionAndFillCourse(matcher.group("weekdaySection"), courseBuilder, courses); + } - String section = matcher.group("section"); - this.fillCourseList(section, courseBuilder, courses); } return courses; @@ -64,36 +71,54 @@ public class GraduateCourseTableParser implements Parser> { * 解析周次信息文本 * * @param weekText 周次文本，如“3-14周:连续周 星期三” - * @param builder Lesson的builder + * @param builder Course的builder */ private void parseWeek(String weekText, Course.CourseBuilder builder) { Matcher matcher = WEEK_REGEX.matcher(weekText); if (matcher.find()) { - String startWeek = matcher.group("startWeek"); - String endWeek = matcher.group("endWeek"); - String weekDay = matcher.group("weekDay"); + String startWeek = matcher.group(); + + // 一直匹配搜寻到最后一个数字，即为结束周次，第一次就匹配不到就是单周课 + // 实际上单周课写的也是"3-3"这样子，但是这样写兼容性比较好 + String endWeek = startWeek; + while (matcher.find()) { + endWeek = matcher.group(); + } builder.startWeek(Integer.parseInt(startWeek)); builder.endWeek(Integer.parseInt(endWeek)); - builder.weekDay(Course.getWeekDayNumber(weekDay)); } } /** - * 解析节次，并将解析出来的完整的节次放入List中 + * 解析时间并填充最后的解析结果 * - * @param sectionText 提取出来的节次文本，如“上1,上2,上3,上4,下1,下2” - * @param builder LessonImpl中的builder - * @param courses 存放Lesson的List + * @param timeText 时间字段，如 "星期五<br>上3,上4", "星期六<br>上1,上2,上3,上4" + * @param builder 已经解析好其他必要数据的courseBuilder + * @param courses 解析结果List */ - private void fillCourseList(String sectionText, Course.CourseBuilder builder, List courses) { - String[] sections = sectionText.split(","); - for (int i = 0; i < sections.length / 2; i += 2) { - int startSection = this.getSection(sections[i]); - int endSection = this.getSection(sections[i + 1]); - - builder.startSection(startSection); - builder.endSection(endSection); + private void parseWeekdaySectionAndFillCourse(String timeText, Course.CourseBuilder builder, List courses) { + Matcher timeMatcher = WEEKDAY_SECTION_REGEX.matcher(timeText); + // 解析星期和节次，一直匹配，匹配到一次就是一次连续课 + while (timeMatcher.find()) { + // 解析星期 + builder.weekDay(Course.getWeekDayNumber(timeMatcher.group("weekDay"))); + + // 解析节次 + Matcher sectionMatcher = SECTION_REGEX.matcher(timeMatcher.group("sectionText")); + if (sectionMatcher.find()) { + int startSection = getSection(sectionMatcher); + + // todo 这段可以稍微优化一下 + // 一直匹配，最后的那个就是结束节次，如果第一次就不匹配的话就是单节课 + int endSection = startSection; + while (sectionMatcher.find()) { + endSection = getSection(sectionMatcher); + } + + builder.startSection(startSection); + builder.endSection(endSection); + } courses.add(builder.build()); } @@ -102,20 +127,31 @@ public class GraduateCourseTableParser implements Parser> { /** * 将上1，下2，晚1这种相对的节次格式转换为相应的绝对节次 * - * @param time 类似于上1，下2，晚1这种相对的节次格式文本 + * @param dateTime 上，下这种早上晚上的文本 + * @param sectionText 1，2，3这种相对的节次数文本 * @return 相应的绝对节次 */ - private int getSection(String time) { - int i = time.charAt(1) - 48; - switch (time.charAt(0)) { + private int getSection(String dateTime, String sectionText) { + int section = Integer.parseInt(sectionText); + switch (dateTime.charAt(0)) { case '上': - return i; + return section; case '下': - return i + 4; + return section + 4; case '晚': - return i + 8; + return section + 8; default: return 1; } } + + /** + * 通过正则匹配器计算节次 + * + * @param matcher 以及匹配好的matcher + * @return 相应的绝对节次 + */ + private int getSection(Matcher matcher) { + return getSection(matcher.group("dayTime"), matcher.group("section")); + } }