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@ -18,7 +18,9 @@ import java.util.regex.Pattern; |
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public class CourseTableParser implements Parser<List<Course>> { |
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private static final Logger log = LoggerFactory.getLogger(CourseTableParser.class); |
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private static final String COURSE_SPLIT_STR = " --------------------- "; |
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private static final String COURSE_SPLIT_STR = "---------------------"; |
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private static final String COURSE_SPLIT_TAG_STR = "</div><div>"; |
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private static final Pattern WEEK_RANGE_REGEX = Pattern.compile("(?<startWeek>\\d+)-(?<endWeek>\\d+)\\(周\\)"); |
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@ -38,48 +40,39 @@ public class CourseTableParser implements Parser<List<Course>> { |
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List<Course> courses = new ArrayList<>(girds.size()); |
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// 解析每个格子
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int girdCount = 0; |
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for (Element gird : girds) { |
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girdCount++; |
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// 直接获取格子里所有课程的关键字段,每个下表对应格子里相应的课程
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Elements classElements = gird.getElementsByAttributeValue("title", "课堂名称"); |
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Elements teacherElements = gird.getElementsByAttributeValue("title", "老师"); |
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Elements timeElements = gird.getElementsByAttributeValue("title", "周次(节次)"); |
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Elements classroomElements = gird.getElementsByAttributeValue("title", "教室"); |
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// 如果一个格子有好几节课,用" --------------------- "切开,提取字段的时候用i指定对应字段的下表
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String[] courseNames = gird.ownText().split(COURSE_SPLIT_STR); |
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// 解析格子里的所有课
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for (int i = 0; i < courseNames.length; i++) { |
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// 将分隔符替换成标签,方便解析
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String girdHtml = gird.outerHtml().replace(COURSE_SPLIT_STR, COURSE_SPLIT_TAG_STR); |
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Elements courseElements = Jsoup.parse(girdHtml).getElementsByTag("div"); |
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for (Element courseElement : courseElements) { |
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String courseName = courseElement.ownText(); |
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// 格子文本为空,说明这个格子没课,直接跳过这个格子就行了
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if ("".equals(courseNames[i])) { |
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if ("".equals(courseName)) { |
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continue; |
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} |
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// 直接获取格子里所有课程的关键字段,每个下表对应格子里相应的课程
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Elements classElements = courseElement.getElementsByAttributeValue("title", "课堂名称"); |
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Elements teacherElements = courseElement.getElementsByAttributeValue("title", "老师"); |
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Elements timeElements = courseElement.getElementsByAttributeValue("title", "周次(节次)"); |
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Elements classroomElements = courseElement.getElementsByAttributeValue("title", "教室"); |
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Course course = new Course(); |
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course.setName(courseNames[i]); |
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course.setTeachClass(classElements.isEmpty() ? "" : classElements.get(i).text()); |
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course.setTeacher(teacherElements.isEmpty() ? "" : teacherElements.get(i).text()); |
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course.setName(courseName); |
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course.setTeachClass(classElements.isEmpty() ? "" : classElements.get(0).text()); |
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course.setTeacher(teacherElements.isEmpty() ? "" : teacherElements.get(0).text()); |
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ClassRoom classRoom = new ClassRoom(); |
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classRoom.setRoom(classroomElements.isEmpty() ? "" : classroomElements.get(i).text()); |
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classRoom.setRoom(classroomElements.isEmpty() ? "" : classroomElements.get(0).text()); |
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course.setClassroom(classRoom); |
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// 靠行位置来确定节次,而不是靠time字段的节次数据确定(因为太不好处理了)
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// 具体算法就是行索引x2 + 1就是开始的节次(索引从0开始)
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// 对于只有一个小节的课程,这类课程多数是在线课程,实际选课的时候照样会和其他课冲突,因此这里一律按照两小节大课处理
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int lineIndex = (girdCount - 1) / 7; |
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course.setStartSection(lineIndex * 2 + 1); |
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course.setEndSection(lineIndex * 2 + 2); |
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int weekDay = girdCount % 7; |
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course.setWeekDay(weekDay == 0 ? 7 : weekDay); |
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// 提取周次信息,根据老项目,可能会有用","分成两段周次信息,但根据实际测试没有发现类似的课程
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String time = timeElements.isEmpty() ? "" : timeElements.get(i).text(); |
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// 提取周次信息
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String time = timeElements.isEmpty() ? "" : timeElements.get(0).text(); |
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Matcher matcher = WEEK_RANGE_REGEX.matcher(time); |
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if (matcher.find()) { |
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course.setStartWeek(Integer.parseInt(matcher.group("startWeek"))); |
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@ -93,6 +86,15 @@ public class CourseTableParser implements Parser<List<Course>> { |
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} |
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} |
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// 靠行位置来确定节次,而不是靠time字段的节次数据确定(因为太不好处理了)
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// 具体算法就是行索引x2 + 1就是开始的节次(索引从0开始)
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int lineIndex = (int) (girdCount * 0.142); |
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course.setStartSection(lineIndex * 2 + 1); |
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course.setEndSection(lineIndex * 2 + 2); |
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int weekDay = girdCount % 7; |
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course.setWeekDay(weekDay == 0 ? 7 : weekDay); |
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courses.add(course); |
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} |
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} |
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